CA2001757A1 - Porous structural unit and a method of preparing the same - Google Patents
Porous structural unit and a method of preparing the sameInfo
- Publication number
- CA2001757A1 CA2001757A1 CA2001757A CA2001757A CA2001757A1 CA 2001757 A1 CA2001757 A1 CA 2001757A1 CA 2001757 A CA2001757 A CA 2001757A CA 2001757 A CA2001757 A CA 2001757A CA 2001757 A1 CA2001757 A1 CA 2001757A1
- Authority
- CA
- Canada
- Prior art keywords
- structural unit
- porous structural
- preparing
- same
- resin particles
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/20—Making multilayered or multicoloured articles
- B29C43/203—Making multilayered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0407—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by regulating the temperature of the mould or parts thereof, e.g. cold mould walls inhibiting foaming of an outer layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/10—Applying counter-pressure during expanding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
- B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
- B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/08—Transition metals
- B29K2705/12—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0065—Permeability to gases
- B29K2995/0067—Permeability to gases non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0068—Permeability to liquids; Adsorption
- B29K2995/0069—Permeability to liquids; Adsorption non-permeable
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249961—With gradual property change within a component
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249986—Void-containing component contains also a solid fiber or solid particle
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249991—Synthetic resin or natural rubbers
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249991—Synthetic resin or natural rubbers
- Y10T428/249992—Linear or thermoplastic
Abstract
The present invention concerns a method of preparing a porous structural unit comprising a plurality of layers having different specific gravities by pressing and heating a material including resin particles between opposing molds having a temperature difference to thereby cause the fusion or bonding of the resin particles, and a porous structural unit which improves acoustic absorption properties and heat insulation properties and in which the specific gravity is continuously changed.
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP275688/1988 | 1988-10-31 | ||
JP27568888 | 1988-10-31 | ||
JP10422889 | 1989-04-24 | ||
JP104228/1989 | 1989-04-24 | ||
JP1110996A JPH0818376B2 (en) | 1989-04-28 | 1989-04-28 | Porous structure |
JP110996/1989 | 1989-04-28 | ||
JP1208418A JPH0826170B2 (en) | 1988-10-31 | 1989-08-11 | Manufacturing method of multilayer material |
JP208418/1989 | 1989-08-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2001757A1 true CA2001757A1 (en) | 1990-04-30 |
CA2001757C CA2001757C (en) | 1996-10-29 |
Family
ID=27469193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2001757 Expired - Fee Related CA2001757C (en) | 1988-10-31 | 1989-10-30 | Porous structural unit and a method of preparing the same |
Country Status (5)
Country | Link |
---|---|
US (2) | US5108833A (en) |
EP (2) | EP0578272B1 (en) |
KR (1) | KR920003976B1 (en) |
CA (1) | CA2001757C (en) |
DE (2) | DE68927806T2 (en) |
Families Citing this family (40)
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---|---|---|---|---|
US5252270A (en) * | 1990-12-20 | 1993-10-12 | Basf Aktiengesellschaft | Method of forming foam moldings having varied density regions |
WO1992017330A1 (en) * | 1991-04-08 | 1992-10-15 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Foamed synthetic resin molded product, method of molding said product, and metallic mold for internal foam molding |
US5620636A (en) * | 1991-04-08 | 1997-04-15 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Process for manufacturing foam molded product |
US5504281A (en) * | 1994-01-21 | 1996-04-02 | Minnesota Mining And Manufacturing Company | Perforated acoustical attenuators |
JP2815542B2 (en) * | 1994-08-31 | 1998-10-27 | 三菱電機ホーム機器株式会社 | Sound absorption mechanism using porous structure |
DE29520936U1 (en) * | 1994-12-21 | 1996-05-30 | Wella Ag | Bottle-like plastic container |
GB2342128B (en) * | 1995-09-12 | 2000-05-17 | Mitsubishi Electric Home Appl | Porous-plastic bearing |
JPH0976371A (en) * | 1995-09-12 | 1997-03-25 | Mitsubishi Electric Corp | Porous plastic bearing and its manufacture |
JP2859578B2 (en) * | 1996-03-28 | 1999-02-17 | 三菱電機株式会社 | Sound wave phase change device and sound barrier |
JP3378162B2 (en) * | 1997-01-21 | 2003-02-17 | シャープ株式会社 | Image forming apparatus and method for manufacturing dielectric sheet |
WO1998043797A1 (en) | 1997-04-01 | 1998-10-08 | Jsp Corporation | Molded body of thermoplastic resin having sound absorption characteristics |
FR2778780B1 (en) * | 1998-05-15 | 2000-08-04 | Metravib Sa | PROCESS FOR PRODUCING FROM SPHERES ASSEMBLED BETWEEN THEM, AN ACOUSTIC ABSORPTION MATERIAL AND MATERIAL OBTAINED |
DE19823415A1 (en) * | 1998-05-26 | 1999-12-16 | Behr Gmbh & Co | Molding diverse foam objects with smooth surfaces and edges |
US20040023587A1 (en) * | 2002-08-02 | 2004-02-05 | C.T.A. Acoustics | Acoustical insulation laminate with polyolefin layer and process for making |
CA2494741C (en) * | 2002-08-02 | 2009-02-10 | Cta Acoustics, Inc. | Acoustical insulation laminate with polyolefin layer and process for making |
US6769512B2 (en) * | 2002-08-02 | 2004-08-03 | C.T.A. Acoustics | Acoustical insulation laminate with polyolefin layer and process for making |
US7524556B2 (en) * | 2003-07-23 | 2009-04-28 | Sumitomo Chemical Company, Limited | Thermoplastic resin foamed article |
CN1595189B (en) * | 2003-09-10 | 2010-06-16 | 信越化学工业株式会社 | Packaging plate for magnetic circuit, method for packaging magnetic circuit using the same, and magnetic circuit package |
US20060037815A1 (en) * | 2004-08-18 | 2006-02-23 | Schabel Norman G Jr | Particulate insulation materials |
CN1989782B (en) * | 2004-09-15 | 2011-12-07 | 上岛一夫 | Mat for audio equipment |
DE502006007252D1 (en) * | 2005-05-25 | 2010-08-05 | Inventio Ag | Elevator system with noise reduction device |
US8273208B2 (en) * | 2005-09-14 | 2012-09-25 | Intrinsix, Llc | Structural composite laminate, and process of making same |
US8051950B2 (en) * | 2006-08-03 | 2011-11-08 | Glacier Bay, Inc. | System for reducing acoustic energy |
US8003039B2 (en) | 2007-01-17 | 2011-08-23 | 3D Systems, Inc. | Method for tilting solid image build platform for reducing air entrainment and for build release |
US20090142212A1 (en) * | 2007-12-03 | 2009-06-04 | Paul Xiubao Huang | Rotary blower with noise abatement jacket enclosure |
CN101649845B (en) * | 2008-08-13 | 2013-02-20 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
CN101725574A (en) * | 2008-10-23 | 2010-06-09 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
WO2011016961A2 (en) * | 2009-07-29 | 2011-02-10 | Dow Global Technologies Inc. | Thermal insulating panel composite |
RU2012107456A (en) * | 2009-07-29 | 2013-09-10 | ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи | HEAT-INSULATING PRODUCTS FROM COMPOSITE POLYMER FOAM / AEROGEL |
EP2527124A1 (en) * | 2011-05-27 | 2012-11-28 | Sto Ag | Method for producing a moulded part comprising a cavity structure for acoustic and/or thermal insulation and moulded part for acoustic and/or thermal insulation |
GB2493169A (en) | 2011-07-26 | 2013-01-30 | Silentair Group Ltd | Sound insulated ducted unit and an air conditioner incorporating the same |
US8413762B1 (en) * | 2011-12-08 | 2013-04-09 | Gulfstream Aerospace Corporation | Thermal-acoustic sections for an aircraft |
DE102013002519B4 (en) | 2013-02-13 | 2016-08-18 | Adidas Ag | Production method for damping elements for sportswear |
US9193131B2 (en) | 2013-03-14 | 2015-11-24 | Cta Acoustics, Inc. | Thermal and acoustical insulation |
US9993990B2 (en) | 2013-03-14 | 2018-06-12 | Cta Acoustics, Inc. | Thermal insulation |
DE102015202013B4 (en) * | 2015-02-05 | 2019-05-09 | Adidas Ag | Process for producing a plastic molding, plastic molding and shoe |
DE102016209045B4 (en) | 2016-05-24 | 2022-05-25 | Adidas Ag | METHOD AND DEVICE FOR AUTOMATICALLY MANUFACTURING SHOE SOLES, SOLES AND SHOES |
DE102016223980B4 (en) | 2016-12-01 | 2022-09-22 | Adidas Ag | Process for the production of a plastic molding |
CA3057869A1 (en) * | 2017-03-31 | 2018-10-04 | The Secant Group, Llc | Cured biodegradable microparticles and scaffolds and methods of making and using the same |
WO2020153376A1 (en) * | 2019-01-21 | 2020-07-30 | 日東電工株式会社 | Film |
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US1342801A (en) * | 1917-05-17 | 1920-06-08 | Charles L Gebauer | Process of producing metal bodies |
US2297248A (en) * | 1936-08-21 | 1942-09-29 | Rudolph Hans | Porous materials and process of making |
US3262834A (en) * | 1962-12-20 | 1966-07-26 | Rogers Corp | Waterproof gas-permeable plastic sheet |
NL6606747A (en) * | 1965-05-17 | 1966-11-18 | ||
NL6606546A (en) * | 1965-05-19 | 1966-11-21 | ||
GB1122649A (en) * | 1965-09-09 | 1968-08-07 | Herbert Frederich Bienert | Production of foamed plastic products |
US3414642A (en) * | 1966-03-11 | 1968-12-03 | Robinson Lewis And Rubin | Method of manufacturing ornamental plastic products |
US3608010A (en) * | 1968-01-24 | 1971-09-21 | Federal Huber Co | Method of forming a lightweight structural assembly by joining acrylic resin balls with a polyester or epoxy resin matrix |
US3718532A (en) * | 1970-04-08 | 1973-02-27 | Usm Corp | Microporous sheets and processes |
US3709774A (en) * | 1970-05-13 | 1973-01-09 | Gen Electric | Preparation of asymmetric polymer membranes |
US3971839A (en) * | 1971-12-06 | 1976-07-27 | Taylor Don A | Particle filled self-conformable cushion and method of making same |
US3925526A (en) * | 1972-02-04 | 1975-12-09 | Owens Corning Fiberglass Corp | Method of making an integral skin foamed product wherein portions of the skin are of greater densities |
US4336221A (en) * | 1972-08-11 | 1982-06-22 | Armen Garabedian | Process for making a stress-free plastic article |
US3975480A (en) * | 1974-10-24 | 1976-08-17 | Ben Walters | Method of making ornamental plastic articles |
US4037013A (en) * | 1975-11-07 | 1977-07-19 | Dayco Corporation | Carpet underlay comprising foamed scrap particles |
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US4268465A (en) * | 1978-01-27 | 1981-05-19 | Massachusetts Institute Of Technology | Method of accelerating the cooling of polymeric articles |
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US4424177A (en) * | 1981-10-16 | 1984-01-03 | Atlantic Richfield Company | Molding prepuffed polystyrene for higher density skin |
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JPS61167071A (en) * | 1985-01-18 | 1986-07-28 | ミドリシー・エム・ビー株式会社 | Production of nonwoven molded product containing synthetic fiber |
US4591469A (en) * | 1985-01-30 | 1986-05-27 | Wm. T. Burnett & Co., Inc. | Process for making foam-in-form polyurethane foam buns and apparatus therefor |
JPS61188130A (en) * | 1985-02-18 | 1986-08-21 | Janome Sewing Mach Co Ltd | Synthetic resin sintered body |
US4693856A (en) * | 1985-04-22 | 1987-09-15 | The Dow Chemical Company | Method and apparatus for the preparation of foamed thermoplastic articles |
JPS61263714A (en) * | 1985-05-20 | 1986-11-21 | Toshiba Corp | Curing of resin-impregnated product |
IT1202066B (en) * | 1985-05-31 | 1989-02-02 | Piero Cretti | PROCEDURE FOR THE MANUFACTURE OF ELEMENTS IN EXPANDED SYNTHETIC MATERIAL EQUIPPED WITH PARTICULARLY RESISTANT LAYERS, PLANT FOR IMPLEMENTING THE SAID, AND PRODUCTS SO OBTAINED |
JPH0782450B2 (en) * | 1985-06-26 | 1995-09-06 | 富士通テン株式会社 | Runaway detection method |
US4747901A (en) * | 1985-12-10 | 1988-05-31 | Armstrong World Industries, Inc. | Process for making a stress-free embossed and ornament surface covering |
-
1989
- 1989-10-27 EP EP19930112446 patent/EP0578272B1/en not_active Expired - Lifetime
- 1989-10-27 EP EP19890119990 patent/EP0368098B1/en not_active Expired - Lifetime
- 1989-10-27 DE DE1989627806 patent/DE68927806T2/en not_active Expired - Fee Related
- 1989-10-27 DE DE1989621548 patent/DE68921548T2/en not_active Expired - Fee Related
- 1989-10-30 KR KR1019890015614A patent/KR920003976B1/en not_active IP Right Cessation
- 1989-10-30 CA CA 2001757 patent/CA2001757C/en not_active Expired - Fee Related
- 1989-10-31 US US07/429,496 patent/US5108833A/en not_active Expired - Lifetime
-
1991
- 1991-06-26 US US07/721,243 patent/US5143664A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0368098B1 (en) | 1995-03-08 |
EP0578272B1 (en) | 1997-02-26 |
DE68921548D1 (en) | 1995-04-13 |
KR900006105A (en) | 1990-05-07 |
CA2001757C (en) | 1996-10-29 |
DE68927806T2 (en) | 1997-09-18 |
KR920003976B1 (en) | 1992-05-21 |
US5108833A (en) | 1992-04-28 |
US5143664A (en) | 1992-09-01 |
DE68921548T2 (en) | 1995-10-05 |
EP0578272A1 (en) | 1994-01-12 |
EP0368098A3 (en) | 1991-10-02 |
EP0368098A2 (en) | 1990-05-16 |
DE68927806D1 (en) | 1997-04-03 |
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