Patent US4198613A successfully refreshed from Google Patents.
EP0215480A2
Expired / Lapsed
EP
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Active agent-containing laminated material and method for producing the same
Assignee: Eneos Corp
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Filing: 1986-09-17
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Granted: —
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Expires: 2006-09-17
Abstract
Abstract An active agent-containing laminated material and the method for producing the same, in which an impermeable film is temporarily stuck to at least one side surface of an active agent-containing film and impermeable film can be peeled off and re-stuck repeatedly. The laminated material is prepared by directly laminating a molten web of active agent-containing polyolefin composition with an impermeable film at and pressing them together, said active agent-containing polyolefin composition comprising: (A) 10 to 100 parts by weight of carboxyl group-containing ethylene based copolymer having a content of the carboxyl group-containing monomer of at least 7 % by weight; (B) 90 parts by weight or less of low density polyethylene having a melt index of at least 30 g/10 min.; and (C) at least 0.005 parts by weight of an active agent or agents relative to 100 parts by weight of said polymers (A) plus (B).
Inventors
- 👤 Hachiro Saitoh
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 02:36
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/18; B32B27/32; B32B27/06; B32B27/08; B32B27/30; B32B27/306; B32B37/00; B32B37/14; B32B37/15; B32B37/153; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/14; Y10T428/1424; Y10T428/28; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31746; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31891; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
105 words
An active agent-containing laminated material which is prepared by directly laminating a molten web of an active agent-containing polyolefin composition with an impermeable film and pressing together, said active agent-containing polyolefin composition comprising: (A) 10 to 100 parts by weight of carboxyl group-containing ethylene based copolymer containing at least 7 % by weight of the carboxyl group-containing monomer; (B) 90 parts by weight or less of low density polyethylene having a melt index of at least 30 g/10 min.; and (C) at least 0.005 parts by weight of an active agent or agents relative to 100 parts by weight of said polymers (A) plus (B).
Claim 2
Dependent Claim
105 words
An active agent-containing laminated material which is prepared by directly laminating a molten web of an active agent-containing polyolefin composition with an impermeable film and pressing together, said active agent-containing polyolefin composition comprising: (A) 10 to 100 parts by weight of carboxyl group-containing ethylene based copolymer containing at least 7 % by weight of the carboxyl group-containing monomer; (B) 90 parts by weight or less of low density polyethylene having a melt index of at least 30 g/10 min.; and (C) at least 0.005 parts by weight of an active agent or agents relative to 100 parts by weight of said polymers (A) plus (B).
Claim 3
Dependent Claim
23 words
The active agent-containing laminated material of Claim 1, wherein said carboxyl group-containing ethylene based copolymer is ethylene-vinyl acetate copolymer or ethylene-ethyl acrylate copolymer.
Claim 4
Dependent Claim
30 words
The active agent-containing laminated material of Claim 1 or 2, wherein said impermeable film is directly laminated to both sides of said molten web of the active agent-containing polyolefin composition.
Claim 5
Dependent Claim
60 words
The active agent-containing laminated material of Claim 1 or 2, wherein the polyolefin side of an impermeable film which is previously laminated with a polyolefin film is laminated to one side of said molten web of active agent-containing polyolefin composition and another impermeable film is directly laminated to the other side of said molten web of active agent-containing polyolefin composition.
Claim 6
Dependent Claim
49 words
The active agent-containing laminated material of any of the Claims 1 to 4, wherein said impermeable film is made of at least one material selected from the group consisting of polyamides, polyvinylidene chloride, polyvinyl chloride, saponified product of ethylene-vinyl acetate copolymer, polyester, regenerated cellulose, metal foil and metallized film.
Claim 7
Dependent Claim
21 words
The active agent-containing laminated material of any of the Claims 1 to 5, wherein said active agent is a volatile one.
Claim 8
Dependent Claim
20 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is a perfume.
Claim 9
Dependent Claim
20 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is a deodorant.
Claim 10
Dependent Claim
21 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is an antifungal agent.
Claim 11
Dependent Claim
20 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is a germicide.
Claim 12
Dependent Claim
21 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is an insect repellent.
Claim 13
Dependent Claim
20 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is an insecticide.
Claim 14
Dependent Claim
20 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is a rodenticide.
Claim 15
Dependent Claim
21 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is an animal repellent.
Claim 16
Dependent Claim
21 words
The active agent-containing laminated material of any of the Claims 1 to 6, wherein said active agent is a rust inhibitor.
Claim 17
Independent Claim
133 words
A method for producing an active agent-containing laminated material which comprises the steps of directly laminating a molten web of active agent-containing polyolefin composition with an impermeable film at temperatures in the range from the melting point of said composition to the temperature above said temperature by 100° C, and pressing them together, said active agent-containing polyolefin composition comprising: (A) 10 to 100 parts by weight of carboxyl group-containing ethylene based copolymer containing at least 7 % by weight in the content of carboxyl group-containing monomer; (B) 90 parts by weight or less of low density polyethylene having a melt index of at least 30 g/10 min.; and (C) at least 0.005 parts by weight of an active agent or agents relative to 100 parts by weight of said polymers (A) plus (B)
Claim 18
Independent Claim
133 words
A method for producing an active agent-containing laminated material which comprises the steps of directly laminating a molten web of active agent-containing polyolefin composition with an impermeable film at temperatures in the range from the melting point of said composition to the temperature above said temperature by 100° C, and pressing them together, said active agent-containing polyolefin composition comprising: (A) 10 to 100 parts by weight of carboxyl group-containing ethylene based copolymer containing at least 7 % by weight in the content of carboxyl group-containing monomer; (B) 90 parts by weight or less of low density polyethylene having a melt index of at least 30 g/10 min.; and (C) at least 0.005 parts by weight of an active agent or agents relative to 100 parts by weight of said polymers (A) plus (B)
Claim 19
Dependent Claim
39 words
The method for producing an active agent-containing laminated material in Claim 16, wherein said active agent-containing polyolefin composition is prepared by previously impregnating an carboxyl group-containing ethylene based copolymer with active agents and blending it with low density polyethylene.
Claim 20
Dependent Claim
31 words
The method for producing an active agent-containing laminated material in Claim 16, wherein said molten web of active agent-containing polyolefin composition is directly interposed between two or more of impermeable film.
Claim 21
Independent Claim
26 words
The method for producing an active agent-containing laminated material of any of the Claims 16 to 18, wherein said molten web is an extruded molten web.
Claim 22
Independent Claim
29 words
The method of any of the Claims 16 to 19, wherein the laminated material has the features according to any of the Claims 2, 4 or 5 to 15.
References Cited (Backward Citations)
No citation records indexed.
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