CA2697578A1 - Multi-layer film coverings for volatizing dispensers - Google Patents

Multi-layer film coverings for volatizing dispensers Download PDF

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Publication number
CA2697578A1
CA2697578A1 CA2697578A CA2697578A CA2697578A1 CA 2697578 A1 CA2697578 A1 CA 2697578A1 CA 2697578 A CA2697578 A CA 2697578A CA 2697578 A CA2697578 A CA 2697578A CA 2697578 A1 CA2697578 A1 CA 2697578A1
Authority
CA
Canada
Prior art keywords
section
inward
dispenser
outward
volatile chemical
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
Application number
CA2697578A
Other languages
French (fr)
Other versions
CA2697578C (en
Inventor
John S. Trent
Anne T. Maghasi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SC Johnson and Son Inc
Original Assignee
SC Johnson and Son Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SC Johnson and Son Inc filed Critical SC Johnson and Son Inc
Publication of CA2697578A1 publication Critical patent/CA2697578A1/en
Application granted granted Critical
Publication of CA2697578C publication Critical patent/CA2697578C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/02—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air by heating or combustion
    • A61L9/03—Apparatus therefor
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00—Stationary means for catching or killing insects
    • A01M1/20—Poisoning, narcotising, or burning insects
    • A01M1/2022—Poisoning or narcotising insects by vaporising an insecticide
    • A01M1/2027—Poisoning or narcotising insects by vaporising an insecticide without heating
    • A01M1/2055—Holders or dispensers for solid, gelified or impregnated insecticide, e.g. volatile blocks or impregnated pads
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00—Stationary means for catching or killing insects
    • A01M1/20—Poisoning, narcotising, or burning insects
    • A01M1/2022—Poisoning or narcotising insects by vaporising an insecticide
    • A01M1/2061—Poisoning or narcotising insects by vaporising an insecticide using a heat source
    • A01M1/2077—Poisoning or narcotising insects by vaporising an insecticide using a heat source using an electrical resistance as heat source
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/13—Dispensing or storing means for active compounds
    • A61L2209/131—Semi-permeable membranes
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/905—Odor releasing material

Abstract

Disclosed are dispensers for volatile materials. There is a container in the form of a well having an internal cavity, a volatile chemical positioned in the cavity, and a multi-layer covering enclosing the cavity. The covering has a lower section that is gas permeable, and an upper section removably bound to the lower section that is not. Embodiments include when (a) the lower section has a top layer that is a blend of high density polyethylene and low density polyethylene; the upper section has a bottom layer that has a mixture of polypropylene and a propylene/ethylene copolymer; and/or the lower section has an upper layer that has low density polyethylene but the lower section does not contain ultra low density polyethylene.
These features help prevent premature leakage at the bond between the upper section and lower section.

Claims (11)

1. A dispenser for a volatile material, comprising:
a container in a form of a well having an internal cavity;
a volatile chemical positioned in the cavity; and a multi-layer covering bound to the well, wherein the multi-layer covering has an inward section that is sufficiently permeable to permit a gas form of the volatile chemical to pass through it, and an outward section removably bound to the inward section that is essentially impermeable to the volatile chemical;
whereby when the outward section covers the inward section the volatile chemical can be trapped in the cavity, and when the outward section is peeled off from the inward section the volatile chemical can escape through the inward section out of the dispenser;
the dispenser further comprising that the inward section has an outward layer that comprises a blend of high density polyethylene and low density polyethylene.
2. The dispenser of claim 1, wherein the inward section has an outward layer that comprises at least 5% high density polyethylene.
3. The dispenser of claim 1, wherein the inward section has an outward layer that comprises at least 20% high density polyethylene.
4. The dispenser of claim 3, wherein the inward section has an outward layer that comprises no more than 50% high density polyethylene.
5. The dispenser of claim 1, wherein the outward section has an inward layer facing the inward section which comprises polypropylene.
6. The dispenser of claim 1, wherein the volatile chemical is stored as a gel in the cavity, and is in a form of an indicator chemical.
7. The dispenser of claim 1, wherein the inward section is heat sealed to the well.
8. A dispenser for a volatile material, comprising:
a container in a form of a well having an internal cavity;
a volatile chemical positioned in the cavity; and a multi-layer covering bound to the well, wherein the multi-layer covering has an inward section that is sufficiently permeable to permit a gas form of the volatile chemical to pass through it, and an outward section removably bound to the inward section that is essentially impermeable to the volatile chemical;
whereby when the outward section covers the inward section the volatile chemical can be trapped in the cavity, and when the outward section is peeled off from the inward section the volatile chemical can escape through the inward section out of the dispenser;
the dispenser further comprising that the outward section has an inward layer that is a mixture of polypropylene and a propylene/ethylene copolymer.
9. The dispenser of claim 8, wherein the inward layer of the outward section comprises no more than 30% by weight of the propylene/ethylene copolymer.
10. A dispenser for a volatile material, comprising:
a container in a form of a well having an internal cavity;
a volatile chemical positioned in the cavity; and a multi-layer covering bound to the well, wherein the multi-layer covering has an inward section that is sufficiently permeable to permit a gas form of the volatile chemical to pass through it, and an outward section removably bound to the inward section that is essentially impermeable to the volatile chemical;
whereby when the outward section covers the inward section the volatile chemical can be trapped in the cavity, and when the outward section is peeled off from the inward section the volatile chemical can escape through the inward section out of the dispenser, the dispenser further comprising that the inward section has an outward layer that comprises low density polyethylene, and the inward section does not include ultra low density polyethylene.
11
CA2697578A 2009-04-27 2010-03-23 Multi-layer film coverings for volatizing dispensers Expired - Fee Related CA2697578C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/430,349 US7980486B2 (en) 2009-04-27 2009-04-27 Multi-layer film coverings for volatizing dispensers
US12/430,349 2009-04-27

Publications (2)

Publication Number Publication Date
CA2697578A1 true CA2697578A1 (en) 2010-10-27
CA2697578C CA2697578C (en) 2012-05-15

Family

ID=42991255

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2697578A Expired - Fee Related CA2697578C (en) 2009-04-27 2010-03-23 Multi-layer film coverings for volatizing dispensers

Country Status (2)

Country Link
US (1) US7980486B2 (en)
CA (1) CA2697578C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD794765S1 (en) * 2016-02-02 2017-08-15 Hayloft Enterprises, Inc. Air freshener

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US20140037880A1 (en) * 2012-07-26 2014-02-06 Sridhar Krishnamurthi Siddhamalli Multilayer flexible tube
GB2505450B (en) * 2012-08-30 2017-09-13 Ming Jen Hsiao Aroma-diffusing heating device using a replaceable aroma capsule and the aroma capsule
US9327045B2 (en) * 2013-10-22 2016-05-03 American Covers, Inc. Air freshener with porous membrane with leak pad and adjustable opening
CN104149445B (en) * 2014-07-14 2016-03-23 湖北富思特材料科技集团有限公司 The mute white coated film of BOPE
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ITUB20159814A1 (en) * 2015-12-31 2017-07-01 Zobele Holding Spa DIFFUSER OF ACTIVE SUBSTANCES, WHICH INSECTICIDES, PERFUMES, DETERGENTS OR DISINFECTANTS, AND PROCEDURE FOR ITS MANUFACTURING
WO2017124049A1 (en) * 2016-01-15 2017-07-20 Enviroscent, Inc. Materials and package configurations for use in packaging closed by permeable membranes
US11077221B2 (en) * 2016-01-25 2021-08-03 S. C. Johnson & Son, Inc. Volatile dispenser for use in volatile dispensing systems
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Also Published As

Publication number Publication date
CA2697578C (en) 2012-05-15
US7980486B2 (en) 2011-07-19
US20100270392A1 (en) 2010-10-28

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MKLA Lapsed

Effective date: 20150323