CA1117876A - Tubular container for viscous, viscous-elastic, plastic products as well as for powder or granular products - Google Patents
Tubular container for viscous, viscous-elastic, plastic products as well as for powder or granular productsInfo
- Publication number
- CA1117876A CA1117876A CA000335805A CA335805A CA1117876A CA 1117876 A CA1117876 A CA 1117876A CA 000335805 A CA000335805 A CA 000335805A CA 335805 A CA335805 A CA 335805A CA 1117876 A CA1117876 A CA 1117876A
- Authority
- CA
- Canada
- Prior art keywords
- tubular container
- plastic
- tube
- container according
- products
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/24—Cartridge closures or seals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/28—Cartridge cases characterised by the material used, e.g. coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S229/00—Envelopes, wrappers, and paperboard boxes
- Y10S229/94—Container material with specified grain direction
Abstract
NITRO NOBEL AB, Gyttorp. LAU 793 Tubular container for viscous, viscous-elastic, plastic products as well as for powder or granular products Abstract It has been found that fluid, semi-fluid, plastic products as well as powder or granular products packed in plastic tubes have caused great problems in tropical countries due to the change in temperature during day and night. In some cases the products have expanded and burst open the closure of the plastic tube so that the contents ran out or, due to their constituents, the products have caused deterioration of the protective properties of the plastic tube. By choosing a plastic tube or olefin plastic and sealing said plastic tube with closures of olefin plastic, as well as orientating the plastic molecules in the tube in both axial and radial direction, a plastic seal is obtained which is not affected by the products enclosed and which also stands expansion of the products without rupturing.
1.
1.
Description
$
me present invention relates to a tubular plastic container for a product which may be viscous, viscous-elastic, plastic or consist of a powder which may be fine or coarse-grained. m e container is usually provided at each end with a closure which i8 retained by folding in the ends of the container so that an inwardly directed flange is obtained.
Such a tubular container may consist of PVC. Such a container has been widely u3ed, for instance, in the Scandinavian countries for explosives such as gelatin explosives sold under the trademark DYNAMEX. Other powderlike explosives may also be packed in such tubular containers.
Such powdered explosives are sold under the trademarks NABIT and G~RIT.
Considerable iroblems have been encountered with tubular explosive con-tainers described above which have been delivered to oriental countries.
Due to their constituents the explosives have affected the surrounding plastic casing in the tropical climate so that the container has softened, thus losing its stiffness making it impossible to insert into a drill hole.
Since explosives normally contain a~monium nitratey one of the five crystal conversion points of this being at about 32C, this has led to innumerable crystàl conversions taking place when the explosive is stored in a plastic tube. hs a result the explosive has expanded in volume and burst open the end closures of the container. After about 20 crystal conversions the explosive may have increased its volume by 6 - 8 per cent.
Gnce the end closures have been broken the explosive charges are of no further use. ~he explosive is expo~ed when the end closures have been broken and, upon crystal conversion, it is able to absorb unlimited amounts of moisture 80 that it loses its plasticity and becomes stiff and solid. The explosive must be plastic inasmuch as a drill hole may not always be straight but may be deflected to a certain extent.
~he object of the present invention is to solve the problems mentioned above which arise in tropical climates and the present invention relates to a tubular container, closed at both ends and intended for a product which may be viscous, viscous-elastic, plastic or a powder which is either fine or coarse-grained. The problem is solved by choosing a plastic which is an olefin plastic or a plastic having the same properties as olefin plastic. ~urthermore, in the tubular part of the container the olefin plastic should have the plastic molecules orientated in both axial and radial direction; the latter formed in eolid phase, i.e. below the melting point of the plastic. A molecule may have substantially the "" ~
me present invention relates to a tubular plastic container for a product which may be viscous, viscous-elastic, plastic or consist of a powder which may be fine or coarse-grained. m e container is usually provided at each end with a closure which i8 retained by folding in the ends of the container so that an inwardly directed flange is obtained.
Such a tubular container may consist of PVC. Such a container has been widely u3ed, for instance, in the Scandinavian countries for explosives such as gelatin explosives sold under the trademark DYNAMEX. Other powderlike explosives may also be packed in such tubular containers.
Such powdered explosives are sold under the trademarks NABIT and G~RIT.
Considerable iroblems have been encountered with tubular explosive con-tainers described above which have been delivered to oriental countries.
Due to their constituents the explosives have affected the surrounding plastic casing in the tropical climate so that the container has softened, thus losing its stiffness making it impossible to insert into a drill hole.
Since explosives normally contain a~monium nitratey one of the five crystal conversion points of this being at about 32C, this has led to innumerable crystàl conversions taking place when the explosive is stored in a plastic tube. hs a result the explosive has expanded in volume and burst open the end closures of the container. After about 20 crystal conversions the explosive may have increased its volume by 6 - 8 per cent.
Gnce the end closures have been broken the explosive charges are of no further use. ~he explosive is expo~ed when the end closures have been broken and, upon crystal conversion, it is able to absorb unlimited amounts of moisture 80 that it loses its plasticity and becomes stiff and solid. The explosive must be plastic inasmuch as a drill hole may not always be straight but may be deflected to a certain extent.
~he object of the present invention is to solve the problems mentioned above which arise in tropical climates and the present invention relates to a tubular container, closed at both ends and intended for a product which may be viscous, viscous-elastic, plastic or a powder which is either fine or coarse-grained. The problem is solved by choosing a plastic which is an olefin plastic or a plastic having the same properties as olefin plastic. ~urthermore, in the tubular part of the container the olefin plastic should have the plastic molecules orientated in both axial and radial direction; the latter formed in eolid phase, i.e. below the melting point of the plastic. A molecule may have substantially the "" ~
2.
appearance of a sinus curve and such a curve may be orientated in various ways in relation to the axis of the pla~tic tube. If the molecules are ehaped like this they will not contract when subjectea to heat. This may be expressed by saying that a plastic tube with such molecules has lost its elastomeric memory. According to the invention, such a tube shall be sealed with end closures of the same material as the tube itself and the end closures shall be secured at the ends of the tube 90 that the tube is hermetically sealed when it has been filled with a product.
~he o~in plastic selected preferably consists of polypropene which has the property of being insensitive to the ingredients of an explosive.
Since the plas-tic molecules are radially orientated in solid phase in the maDner described abo~e and not tensioned, a tube made of polypropene can expand in longitudinal direction without breaking. Furthermore, such a tube can also withstand shock stress due to the elasticity provided by the unstresssd polypropene molecules.
Polypropene also has the valuable proper-ty of extremely low permeability to water.
Since the polypropene tube includes unstretched molecules, the explosive enclo~ed in such a tube can expand without the surrounding tube being destroyed.
The closures for the tube are made of the same material as the tube itself and are in the form of an inverted lid provided with a tubular part. The two lids are inserted in the ends of the tube and the tube parts welded to the inner surface of the tubular container, preferably by means of ultrasonic welding, the material of the closure and that of the surrounding tube being totally welded together at the welding poi~ 8. This iB beCaUBe a tube manufactured in accordance with the above has no elastomeric memory which means that when the plastic molecules are orientated in the manner described above, the tube has lost itB ability to contract when subjected to heat.
It may be advisable to provide the tubular part of each closure "ith one or more outwardly directed ridges around the tube by means of which each closure is welded to the relevant end of the tubular container.
If at least two peripheral ridges are used for each closur2, an absolutely tight seal with be obtained.
Each end closure is provided in the centre with a protuberance facing inwardly in relation to the surrounding tube and provided with rupture indications. A detonator can be passed through said protuberance and held in position.
In accordance with the invention the plastic used may be polypropene PP
but in certain cases it is advisable to use a copolymer consisting of poly-propene PP and HD-polythene (PEED). ~he proportions between these monomers should be such that the HD-polythene constitutes about 10-40 %, preferably 15 %. The aim in using a copolymer is to bring down the glass temperature in the final product to below at least -10C, preferably -50C~
Other characteristic features of the present invention are clear from the following claims.
~he present invention will be described more fully with reference to the three accompanying sheets of drawings in which ~Oi Figure 1 shows a tube according to the present invention, together with an end closure not yet in place, Figure 2 shows the 3ame tube as in Figure 1 where said end closure is in position and the explosive is being inserted into the tube, Figure 3 shows the tube in Figure 2 completely filled with explosive and with a second end closure ready to ba secured on the tube, Figure 4 shows the tube according to Figure 1 completely filled and provided with two end closures, Figure 5 shows an end closure with inserted detonator held in position by the end closure, and Figure 6 shows a tube filled with explosive and sealed by end closures, in which the end closures have been influenced ~y expanded explosive.
~ ~l'7&~
In the drawings 1 denotes a tube of olefin pla~tic, in t~e embodimen~
shown polypropene. Of course the tube may be of any other t~pe of plastic whatsoever which has the same properties as polypropene. The tube 1 is manufactured by extruding it in auch a way that the plastic molecules in the tube are orientated in both axial and radial direction.
Furthermore, the molecules in the tube are not stressed but are unstressed, that is to say the tube can be extended witnOut breaking and, because the molecules are not stretched and therefore have a certain elasticity, the tube can withstand considerable shock stress without breaking.
The tube produced has the following physical properties at 23C at a relative humidity of 50 %
~ensile stress: MPa DIN 53 455 27 Yield point % DI~ 53 455 ca 900 Flexural ~trength ~Pa DIN 53 452 32 ~orsional rigidity MPa DIN 53 447 300 Bend-shrink module ~Pa 1000 Permeability to water vapour gjm (24h, 25C) DIN 50 122 0.81 " " " " " " 40C DIN 50 122 3.30 ~he layer thickness should be 0.04 mm and stretched.
The tube 1 also has such properties that it is not in any way affected by the constituents included in explosives sold under the trademarks DY~L~EX, G~RI~ and NABIT. !-' On the right of Figure 1 an end closure 2 is shown which is in the form of a tubular part closed at the lefthand end and having a protuberance in the end closure. The protuberance is provided with a number of rupture indi-cations 3, 4, 5 and 6. ~hese four rupture indications define four flaps 7, 8, 9 and 10. The end closure 2, which may also be termed the end piece, i8 provided with two peripheral ridges or grooves 11 and 12. ~he end closure 2 is inserted into the righthand end of the tube 1. Upon insertio~
the peripheral ridges 11 and 12 will be in close contact with the ;nner surface of the tube 1. A mandrel 13 is inserted into the Inserted end piece and provides contact surface for both the tubular part of the end closure and the tube 1. ~he end piece is then welded ultrasonically to the tube l via the peripheral ridges 11 and 12. ~he end piece 2 and tube 1 form a single, coherent, homogenoua unit at the weldi~g points. ~he frequency and 5.
7~
amplitude during welding should be chosen to suit the æelected plastic material, polypropene. This has the great advantage that all other material i8 removed from the welding point.
The tube 1 may have a diameter between 11 and 63 mm and a length of between 400 and 1200 mm. A suitable thickness for the tube may be between 0.35 and 0.55 mm.
When the end piece 2 has been welded to the tube 1, the tube 1 is filled with explosive in the form of a string 14 to leave a tubular space 15 between the tube 1 and the string 14 of explosive substance allowing air to be removed therethrough. Figure 3 shows a tube completely filled with explosive 14. The tube 1 is then provided with a second end closure 16, also provided with two outwardly directed ridges or grooves 17 and 18. ~his end closure 16 can be pressed into the tube 1 so that the outer edge of the end closure 16 coincides with the lefthand outer edge of the tube 1 as shown in Figure 4. When the end closure 16 is to be welded on with ultra-sound, the mandrel 13 is applied first, after which welding is performed. ~his is shown in Figure 4. An explosive cont~;ner in accordance with Figure 4 can be sent to a country with tropical cl;m~te without the container being destroyed or the explosive ~- 20 damaged. ~hanks to the choice of material u~ed for the tube 1, this is not affected by the explosive inside but remains in tact and has the same flexibility and elasticity as the explosive itself. ~ecause of the changes in temperature during a 24-hour period in tropical climate~
it i8 impossible to avoid the cxystal conversions of ammonium nitrate existing in the explosive, as mentioned above, which result in the explosive in the tube expanding to a certain extent. Since the molecules in the surrounding tube are not stressed prior to arrivalin the tropical - ¢limate, the ~urrounding tube i8 able to stand the expansion in volume of the explosive enclosed. Furthe~more, the explosive will remain pla~tic since the sealed container is unable to absorb liquid.
The present invention therefore enables drill holes to be filled in countries having tropical climate by the elegant method of using charges which are plastic and able to follow the unevennesses in the drill hole. A detonator is generally inserted in the charge first inserted and this is done by in~erting the detonator through the central protuberance in an end closure in the manner shown in Figure 5.
6.
Should the elongation capacity of the container, contra~ to expection, prove to be insufficient, the end closures can always be deformed and -take up a part of the expansion in volume of the explosive, as shown in Figure 6.
It should be clear that the problems which have existed in connection with explosive substances may also exist when packing other substances into tubes, which are subjected to changes when transported to countries with tropical climate and where they must be stored for some time. The tubular container should in this case be resistant to chemical action from the eontents and should also be able to stand alterations in volume of the contents.
In the above it has been assumed that the tube shall have a circular cross-section but it should of course be obvious that it may have any ; cross-seetion whatsoever without falling outside the seope of the present invention. For instanee the cross-section may be oval, circular, triangular, etc.
It has been mentioned above that olefin plastics shall be used. Examples of other plastics fulfilling the same funetion are polyacetate plastie7 polyoxymethylene, both polymers and eopolymers being suitable. Also possible are polyesters whieh ean be injeetion moulded and whieh are sold under the following trademarks: ~TRADUR and FORVE~DO. Another possible plastie is polymethylpentene ~PX.
appearance of a sinus curve and such a curve may be orientated in various ways in relation to the axis of the pla~tic tube. If the molecules are ehaped like this they will not contract when subjectea to heat. This may be expressed by saying that a plastic tube with such molecules has lost its elastomeric memory. According to the invention, such a tube shall be sealed with end closures of the same material as the tube itself and the end closures shall be secured at the ends of the tube 90 that the tube is hermetically sealed when it has been filled with a product.
~he o~in plastic selected preferably consists of polypropene which has the property of being insensitive to the ingredients of an explosive.
Since the plas-tic molecules are radially orientated in solid phase in the maDner described abo~e and not tensioned, a tube made of polypropene can expand in longitudinal direction without breaking. Furthermore, such a tube can also withstand shock stress due to the elasticity provided by the unstresssd polypropene molecules.
Polypropene also has the valuable proper-ty of extremely low permeability to water.
Since the polypropene tube includes unstretched molecules, the explosive enclo~ed in such a tube can expand without the surrounding tube being destroyed.
The closures for the tube are made of the same material as the tube itself and are in the form of an inverted lid provided with a tubular part. The two lids are inserted in the ends of the tube and the tube parts welded to the inner surface of the tubular container, preferably by means of ultrasonic welding, the material of the closure and that of the surrounding tube being totally welded together at the welding poi~ 8. This iB beCaUBe a tube manufactured in accordance with the above has no elastomeric memory which means that when the plastic molecules are orientated in the manner described above, the tube has lost itB ability to contract when subjected to heat.
It may be advisable to provide the tubular part of each closure "ith one or more outwardly directed ridges around the tube by means of which each closure is welded to the relevant end of the tubular container.
If at least two peripheral ridges are used for each closur2, an absolutely tight seal with be obtained.
Each end closure is provided in the centre with a protuberance facing inwardly in relation to the surrounding tube and provided with rupture indications. A detonator can be passed through said protuberance and held in position.
In accordance with the invention the plastic used may be polypropene PP
but in certain cases it is advisable to use a copolymer consisting of poly-propene PP and HD-polythene (PEED). ~he proportions between these monomers should be such that the HD-polythene constitutes about 10-40 %, preferably 15 %. The aim in using a copolymer is to bring down the glass temperature in the final product to below at least -10C, preferably -50C~
Other characteristic features of the present invention are clear from the following claims.
~he present invention will be described more fully with reference to the three accompanying sheets of drawings in which ~Oi Figure 1 shows a tube according to the present invention, together with an end closure not yet in place, Figure 2 shows the 3ame tube as in Figure 1 where said end closure is in position and the explosive is being inserted into the tube, Figure 3 shows the tube in Figure 2 completely filled with explosive and with a second end closure ready to ba secured on the tube, Figure 4 shows the tube according to Figure 1 completely filled and provided with two end closures, Figure 5 shows an end closure with inserted detonator held in position by the end closure, and Figure 6 shows a tube filled with explosive and sealed by end closures, in which the end closures have been influenced ~y expanded explosive.
~ ~l'7&~
In the drawings 1 denotes a tube of olefin pla~tic, in t~e embodimen~
shown polypropene. Of course the tube may be of any other t~pe of plastic whatsoever which has the same properties as polypropene. The tube 1 is manufactured by extruding it in auch a way that the plastic molecules in the tube are orientated in both axial and radial direction.
Furthermore, the molecules in the tube are not stressed but are unstressed, that is to say the tube can be extended witnOut breaking and, because the molecules are not stretched and therefore have a certain elasticity, the tube can withstand considerable shock stress without breaking.
The tube produced has the following physical properties at 23C at a relative humidity of 50 %
~ensile stress: MPa DIN 53 455 27 Yield point % DI~ 53 455 ca 900 Flexural ~trength ~Pa DIN 53 452 32 ~orsional rigidity MPa DIN 53 447 300 Bend-shrink module ~Pa 1000 Permeability to water vapour gjm (24h, 25C) DIN 50 122 0.81 " " " " " " 40C DIN 50 122 3.30 ~he layer thickness should be 0.04 mm and stretched.
The tube 1 also has such properties that it is not in any way affected by the constituents included in explosives sold under the trademarks DY~L~EX, G~RI~ and NABIT. !-' On the right of Figure 1 an end closure 2 is shown which is in the form of a tubular part closed at the lefthand end and having a protuberance in the end closure. The protuberance is provided with a number of rupture indi-cations 3, 4, 5 and 6. ~hese four rupture indications define four flaps 7, 8, 9 and 10. The end closure 2, which may also be termed the end piece, i8 provided with two peripheral ridges or grooves 11 and 12. ~he end closure 2 is inserted into the righthand end of the tube 1. Upon insertio~
the peripheral ridges 11 and 12 will be in close contact with the ;nner surface of the tube 1. A mandrel 13 is inserted into the Inserted end piece and provides contact surface for both the tubular part of the end closure and the tube 1. ~he end piece is then welded ultrasonically to the tube l via the peripheral ridges 11 and 12. ~he end piece 2 and tube 1 form a single, coherent, homogenoua unit at the weldi~g points. ~he frequency and 5.
7~
amplitude during welding should be chosen to suit the æelected plastic material, polypropene. This has the great advantage that all other material i8 removed from the welding point.
The tube 1 may have a diameter between 11 and 63 mm and a length of between 400 and 1200 mm. A suitable thickness for the tube may be between 0.35 and 0.55 mm.
When the end piece 2 has been welded to the tube 1, the tube 1 is filled with explosive in the form of a string 14 to leave a tubular space 15 between the tube 1 and the string 14 of explosive substance allowing air to be removed therethrough. Figure 3 shows a tube completely filled with explosive 14. The tube 1 is then provided with a second end closure 16, also provided with two outwardly directed ridges or grooves 17 and 18. ~his end closure 16 can be pressed into the tube 1 so that the outer edge of the end closure 16 coincides with the lefthand outer edge of the tube 1 as shown in Figure 4. When the end closure 16 is to be welded on with ultra-sound, the mandrel 13 is applied first, after which welding is performed. ~his is shown in Figure 4. An explosive cont~;ner in accordance with Figure 4 can be sent to a country with tropical cl;m~te without the container being destroyed or the explosive ~- 20 damaged. ~hanks to the choice of material u~ed for the tube 1, this is not affected by the explosive inside but remains in tact and has the same flexibility and elasticity as the explosive itself. ~ecause of the changes in temperature during a 24-hour period in tropical climate~
it i8 impossible to avoid the cxystal conversions of ammonium nitrate existing in the explosive, as mentioned above, which result in the explosive in the tube expanding to a certain extent. Since the molecules in the surrounding tube are not stressed prior to arrivalin the tropical - ¢limate, the ~urrounding tube i8 able to stand the expansion in volume of the explosive enclosed. Furthe~more, the explosive will remain pla~tic since the sealed container is unable to absorb liquid.
The present invention therefore enables drill holes to be filled in countries having tropical climate by the elegant method of using charges which are plastic and able to follow the unevennesses in the drill hole. A detonator is generally inserted in the charge first inserted and this is done by in~erting the detonator through the central protuberance in an end closure in the manner shown in Figure 5.
6.
Should the elongation capacity of the container, contra~ to expection, prove to be insufficient, the end closures can always be deformed and -take up a part of the expansion in volume of the explosive, as shown in Figure 6.
It should be clear that the problems which have existed in connection with explosive substances may also exist when packing other substances into tubes, which are subjected to changes when transported to countries with tropical climate and where they must be stored for some time. The tubular container should in this case be resistant to chemical action from the eontents and should also be able to stand alterations in volume of the contents.
In the above it has been assumed that the tube shall have a circular cross-section but it should of course be obvious that it may have any ; cross-seetion whatsoever without falling outside the seope of the present invention. For instanee the cross-section may be oval, circular, triangular, etc.
It has been mentioned above that olefin plastics shall be used. Examples of other plastics fulfilling the same funetion are polyacetate plastie7 polyoxymethylene, both polymers and eopolymers being suitable. Also possible are polyesters whieh ean be injeetion moulded and whieh are sold under the following trademarks: ~TRADUR and FORVE~DO. Another possible plastie is polymethylpentene ~PX.
Claims (13)
1. A tubular container for an expandible product, said container comprising a tube having opposite ends, end closure means at said ends, and an expandible product in said tube capable of exerting pressure on said end closures in the course of expansion of said expandible product, said tube being consti-tuted of an olefin plastic whose molecules are oriented in both axial and radial directions, said molecules being unstretched and of a form which is non-linear.
2. A tubular container according to claim 1, characterized in that at 40°C. the olefin plastic has a permeability to water not exceeding 3.30 g per m2 during a 24-hour period with a layer thickness of 0.04 mm, stretched.
3. A tubular container according to claim 1, characterized in that the end closures of the tubular container consist of the same material as the container itself.
4. A tubular container according to claim 3, characterized in that each end closure is in the form of an inverted lid with a tubular part inserted in each end of the tubular container, the tubular part of the lid being in contact with the inner surface of the tubular container.
5. A tubular container according to claim 4, characterized in that the tubular part of each closure is welded to the surrounding tubular container.
6. A tubular container according to claim 5, characterized in that the tubular part of each closure is provided with one or more outwardly directed radial grooves or ridges over which said welding process is effected.
7. A tubular container according to claim 5 or 6, charac-terized in that said welding is effected by means of ultrasonic welding with a frequency and amplitude to suit the material used.
8. A tubular container according to claim 3, characterized in that each closure is provided with central lines of rupture to enable penetration and retention of a detonator.
9. A tubular container according to claim l, characterized in that the olefin plastic is unaffected by the constituents forming an explosive.
10. A tubular container according to claim l, characterized in that the plastic material consists of polypropene.
11. A tubular container according to claim l, characterized in that the plastic used consists of a copolymer, such as two or more different olefins.
12. A tubular container according to claim 1, characterized in that the polymer or copolymer selected gives a glass tempera-ture below -10°C., preferably -50°C.
13. A tubular container according to claim l, characterized in that said molecules are in a form which is substantially sine shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7810386A SE7810386L (en) | 1978-10-04 | 1978-10-04 | RODFORM PACKAGING FOR VISCOSA, VISCOELASTIC, PLASTIC AND POWDER OR CORN-SHAPED PRODUCTS |
| SE7810386-8 | 1978-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1117876A true CA1117876A (en) | 1982-02-09 |
Family
ID=20336003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000335805A Expired CA1117876A (en) | 1978-10-04 | 1979-09-17 | Tubular container for viscous, viscous-elastic, plastic products as well as for powder or granular products |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4284196A (en) |
| CA (1) | CA1117876A (en) |
| CH (1) | CH642022A5 (en) |
| DE (1) | DE2937362A1 (en) |
| ES (1) | ES484499A1 (en) |
| FI (1) | FI792953A (en) |
| FR (1) | FR2437988A1 (en) |
| GB (1) | GB2031838B (en) |
| IT (1) | IT7968911A0 (en) |
| NO (1) | NO793027L (en) |
| SE (1) | SE7810386L (en) |
| YU (1) | YU227179A (en) |
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| US4392315A (en) * | 1982-01-12 | 1983-07-12 | Standard Knitting Mills, Inc. | Destruction and dye resistant tag; tagged textile article and method of identifying textiles subject to a dyeing and finishing process |
| GB2188901A (en) * | 1986-05-22 | 1987-10-14 | Unwins Seeds Ltd | Packaging seeds |
| DE9002316U1 (en) * | 1990-02-27 | 1990-05-03 | Herzberg, Wolfgang, Dr.Med., 2000 Wedel, De | |
| US5435250A (en) * | 1992-09-25 | 1995-07-25 | Pollock; Edward S. | Explosive packaging system |
| FR2714168B1 (en) * | 1993-12-22 | 1996-02-09 | Giat Ind Sa | Method of manufacturing container for propellant charge and container thus obtained. |
| US7178685B2 (en) * | 2003-06-09 | 2007-02-20 | The First Years Inc. | Straw receptacle lid |
| DE102004012934A1 (en) * | 2004-03-17 | 2005-10-06 | Rheinmetall Waffe Munition Gmbh | charge igniter |
| DE102006007133A1 (en) * | 2006-02-16 | 2007-07-05 | Henkel Kgaa | Mass e.g. fluid, retaining cylindrical container for use in automobile industry, has cover with one fixing section joined with other fixing section of container wall by ultrasonic welding, both fixing sections do not protrude outward |
| US8006622B2 (en) * | 2006-11-07 | 2011-08-30 | Orica Explosives Technology Pty Ltd | Protector for detonator, and method of use |
| CL2016000081U1 (en) * | 2016-01-14 | 2016-09-16 | Enaex Servicios S A | Explosive container |
| US11904132B2 (en) * | 2018-06-25 | 2024-02-20 | Sanofi | Packaging for a medicament container |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1143841A (en) | 1900-01-01 | |||
| US1809267A (en) * | 1930-08-09 | 1931-06-09 | Cushing Benjamin | End cap for tubular packages |
| US2372177A (en) * | 1942-01-05 | 1945-03-27 | Colt S Mfg Co | Article of manufacture and method of making the same |
| US2529644A (en) * | 1945-04-11 | 1950-11-14 | Robert C Webber | Expansible closure for containers |
| US2889951A (en) * | 1954-10-22 | 1959-06-09 | Bunder Glas G M B H | Bottle closures |
| US3095972A (en) * | 1961-10-06 | 1963-07-02 | James L Sorenson | Self-sealing sterile packaging and method |
| US3342611A (en) * | 1964-06-03 | 1967-09-19 | H B Hunter Company Inc | Method and means of packaging food |
| GB1058362A (en) | 1964-08-06 | 1967-02-08 | Fed Cartridge Corp | Plastics shotgun cartridge case and method of manufacture thereof |
| US3401632A (en) * | 1965-05-03 | 1968-09-17 | Trojan Powder Co | Packaged booster explosive |
| GB1186331A (en) * | 1968-03-11 | 1970-04-02 | Ici Ltd | Packages of Blasting Explosive |
| US3768636A (en) * | 1969-12-22 | 1973-10-30 | Connell J O | Cylindrical container and spherical contents therefor |
| CA937454A (en) * | 1971-03-24 | 1973-11-27 | G. Mckee James | Explosive cartridge |
| GB1396655A (en) | 1973-02-19 | 1975-06-04 | Canadian Ind | Explosive cartridge |
| US3899100A (en) * | 1973-07-20 | 1975-08-12 | Tiros Plastics Corp | Container for packaging an object |
| JPS5054497A (en) * | 1973-09-13 | 1975-05-14 | ||
| CA1003693A (en) * | 1973-10-01 | 1977-01-18 | Du Pont Of Canada Limited | Small diameter package for slurry explosive gels |
| GB1476306A (en) | 1974-07-19 | 1977-06-10 | Plastona Waddington Ltd John | Containers for and containing carbonated beverages |
-
1978
- 1978-10-04 SE SE7810386A patent/SE7810386L/en unknown
-
1979
- 1979-09-11 GB GB7931436A patent/GB2031838B/en not_active Expired
- 1979-09-11 US US06/074,305 patent/US4284196A/en not_active Expired - Lifetime
- 1979-09-14 ES ES484499A patent/ES484499A1/en not_active Expired
- 1979-09-15 DE DE19792937362 patent/DE2937362A1/en not_active Withdrawn
- 1979-09-17 CA CA000335805A patent/CA1117876A/en not_active Expired
- 1979-09-18 YU YU02271/79A patent/YU227179A/en unknown
- 1979-09-21 NO NO793027A patent/NO793027L/en unknown
- 1979-09-24 FI FI792953A patent/FI792953A/en not_active Application Discontinuation
- 1979-09-28 FR FR7924213A patent/FR2437988A1/en active Pending
- 1979-10-01 CH CH880479A patent/CH642022A5/en not_active IP Right Cessation
- 1979-10-03 IT IT7968911A patent/IT7968911A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB2031838B (en) | 1983-08-17 |
| NO793027L (en) | 1980-04-09 |
| CH642022A5 (en) | 1984-03-30 |
| YU227179A (en) | 1983-02-28 |
| FR2437988A1 (en) | 1980-04-30 |
| IT7968911A0 (en) | 1979-10-03 |
| DE2937362A1 (en) | 1980-04-24 |
| US4284196A (en) | 1981-08-18 |
| GB2031838A (en) | 1980-04-30 |
| SE7810386L (en) | 1980-04-05 |
| FI792953A (en) | 1980-04-05 |
| ES484499A1 (en) | 1980-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |