US4656094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel multi-layer articles
Assignee: Eneos Corp
•
Filing: 1985-07-12
•
Granted: 1987-04-07
•
Expires: 2005-07-12
Abstract
Abstract Novel multi-layer laminate articles of improved adhesion strength comprising at least two layers including a polyester resin layer and a layer of an epoxy group-containing olefin polymer or an olefin polymer composition comprising the epoxy group-containing polymer, are described. The epoxy group-containing olefin polymer is a copolymer of an olefin and an unsaturated glycidyl group-containing monomer or a copolymer of an olefin, an unsaturated glycidyl group-containing monomer and an ethylenically unsaturated monomer.
Inventors
- 👤 Shinji Kojima
- 👤 Hirokazu Suzuki
- 👤 Yuichi Orikasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B15/00; B32B15/04; B32B15/08; B32B15/092; B32B15/20; B32B25/00; B32B25/04; B32B25/08; B32B27/10; B32B27/12; B32B27/30; B32B27/302; B32B27/304; B32B27/306; B32B27/32; B32B27/34; B32B27/36; B32B27/365; B32B27/38; B32B7/00; B32B7/04; B32B7/12; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2307/7244; B32B2307/7248; B32B2311/00; B32B2311/24; B32B2323/00; B32B2323/04; B32B2323/043; B32B2398/00; B32B2398/20; B32B2405/00; B32B2439/00; B32B2439/70; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/257; Y10T428/259; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31515; Y10T428/31525; Y10T428/31529; Y10T428/3154; Y10T428/31551; Y10T428/31645; Y10T428/31678; Y10T428/31692; Y10T428/31721; Y10T428/31725; Y10T428/3175; Y10T428/31757; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31924; Y10T428/31928; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2631
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
81 words
A multi-layer laminate article which comprises at least two layers including a polyester resin layer and a layer of an epoxy group-containing olefin polymer or an olefin polymer composition comprising the epoxy group-containing olefin polymer, the epoxy group-containing olefin polymer being a copolymer containing an unsaturated glycidyl group containing monomer in the main chain prepared by subjecting 50-99.95 wt% of ethylene, 0.05-50 wt.% of an unsaturated glycidyl group-containing monomer and up to 49.95% wt.% of an ethylenically unsaturated monomer to polymerization.
Claim 2
Dependent Claim
81 words
A multi-layer laminate article which comprises at least two layers including a polyester resin layer and a layer of an epoxy group-containing olefin polymer or an olefin polymer composition comprising the epoxy group-containing olefin polymer, the epoxy group-containing olefin polymer being a copolymer containing an unsaturated glycidyl group containing monomer in the main chain prepared by subjecting 50-99.95 wt% of ethylene, 0.05-50 wt.% of an unsaturated glycidyl group-containing monomer and up to 49.95% wt.% of an ethylenically unsaturated monomer to polymerization.
Claim 3
Dependent Claim
20 words
A multi-layer article according to claim 1, wherein the the unsaturated glycidyl group-containing monomer is glycidyl methacrylate or glycidyl acrylate.
Claim 4
Dependent Claim
34 words
A multi-layer article according to claim 1, wherein the ethylenically unsaturated monomer is at least one monomer selected from the group consisting of olefins, vinyl esters, alpha, beta-ethylenically unsaturated carboxylic acids and derivatives thereof.
Claim 5
Dependent Claim
44 words
A multi-layer article according to claim 3, wherein the ethylenically unsaturated monomer is a member selected from the group consisting of vinyl acetate, methacrylic acid, acrylic acid, methyl methacrylate, methyl acrylate, ethyl methacrylate, ethyl acrylate, butyl methacrylate, butyl acrylate, maleic acid and maleic anhydride.
Claim 6
Dependent Claim
54 words
A multi-layer article according to claim 1, wherein said article is a three-layer structure comprising the polyester resin layer as a first layer, the layer of the epoxy group-containing olefin polymer or the olefin polymer composition as a second layer comprising the epoxy group-containing olefin polymer, and a third layer arranged in this order.
Claim 7
Dependent Claim
34 words
A multi-layer article according to claim 5, wherein said third layer is of at least one member selected from the group consisting of thermoplastic resins, thermosetting resins, rubbers, paper, wood, cloths, metals and glass.
Claim 8
Dependent Claim
77 words
A multi-layer article according to claim 6, wherein the thermoplastic resin is at least one member selected from the group consisting of olefin resins, saponified ethylene-vinyl acetate copolymers, polyamide resins, polycarbonate resins, polyvinyl chloride resins, polyvinylidene chloride resins, polyester resins, polyacrylonitrile resins, polystyrene resins, polyvinyl alcohol resins, ABS resins, polymethyl methacrylate, fluorocarbon resins, polyimide resins, polyamide-imide resins, polyether.ether ketone resins, polyether sulfone resins, polysulfone resins, polyphenylene oxide resins, polyphenylene sulfide resins and polyacetal resins and blend thereof.
Claim 9
Dependent Claim
35 words
A multi-layer article according to claim 7, wherein said article has a three-layer structure consisting of a polyester resin layer, a layer of ethylene/glycidyl methacrylate copolymer, and a layer of a saponified ethylene-vinyl acetate resin.
References Cited (Backward Citations)
JPS5371A
Cited
US4500606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |