EP0117622A1
Expired / Lapsed
EP
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Multi-layer plastic laminate structure
Assignee: Toyo Seikan Group Holdings Ltd
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Filing: 1984-01-25
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Granted: —
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Expires: 2004-01-25
Abstract
Abstract Disclosed is a multi-layer plastic structure comprising a layer of a polyester composed mainly of ethylene terephthalate units or butylene terephthalate units and a gas barrier layer containing an olefin-vinyl alcohol copolymer, said two layers being laminated together through a layer of a thermoplastic resin adhesive containing ester groups and amide groups.
Inventors
- 👤 Muneki Yamada
- 👤 Akira Sakamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 05:34
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B1/00; B32B27/30; B32B27/306; B32B27/36; B32B7/00; B32B7/04; B32B7/12; C; C08; C08G; C08G69/00; C08G69/44; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2329/00; B32B2367/00; B32B2439/00; B32B2439/40; B32B2439/60; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1379; Y10T428/1383; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/28; Y10T428/2852; Y10T428/2896; Y10T428/31504; Y10T428/31725; Y10T428/31736; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
50 words
A multi-layer plastic structure comprising a layer of a polyester composed mainly of ethylene terephthalate units or butylene terephthalate units and a gas barrier layer containing an olefin-vinyl alcohol copolymer, said two layers being laminated together through a layer of a thermoplastic resin adhesive containing ester groups and amide groups.
Claim 2
Dependent Claim
50 words
A multi-layer plastic structure comprising a layer of a polyester composed mainly of ethylene terephthalate units or butylene terephthalate units and a gas barrier layer containing an olefin-vinyl alcohol copolymer, said two layers being laminated together through a layer of a thermoplastic resin adhesive containing ester groups and amide groups.
Claim 3
Dependent Claim
52 words
A multi-layer plastic structure as set forth in'claim l, wherein the thermoplastic resin adhesive contains in the polymer chain ester groups at a concentration of 53 to 990 millimoles per 100 g of the resin and amide groups at a concentration of 45 to 840 millimoles per 100 g of the resin.
Claim 4
Dependent Claim
18 words
A multi-layer plastic structure as set forth in claim 1, wherein the thermoplastic resin adhesive is a polyester-amide.
Claim 5
Dependent Claim
37 words
A multi-layer plastic structure as set forth in claim 1, wherein the thermoplastic resin adhesive is a blend or polyester-polyamide block copolymer containing a polyester and a polyamide at a weight ratio of from 10/90 to 90/10.
Claim 6
Dependent Claim
26 words
A multi-layer plastic structure as set forth in claim 1, wherein the thermoplastic resin adhesive has a melting point or flow-initiating temperature of 100 to 280°C.
Claim 7
Dependent Claim
16 words
A hollow-formed vessel composed of a multi- layer plastic structure as set forth in claim 1.
Claim 8
Dependent Claim
16 words
A sheet-formed vessel composed of a multi- layer plastic structure as set forth in claim 1.
References Cited (Backward Citations)
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