Patent EP0378423A2 successfully refreshed from Google Patents.
US4440825A
Expired / Lapsed
US
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Laminate with skin based on AES graft copolymer
Assignee: Polycast Technology Corp
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Filing: 1982-08-09
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Granted: 1984-04-03
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Expires: 2002-08-09
Abstract
Abstract A laminate having at least two layers, one of which comprises an AES graft copolymer composition, the other layer being a rigid foamed plastic.
Inventors
- 👤 Charles F. Paddock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:52
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; B32B25/00; B32B25/04; B32B25/08; B32B5/00; B32B5/18; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0235; B32B2272/00; B32B2305/00; B32B2305/02; B32B2305/022; B32B2355/00; B32B2355/02; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249989; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/31855; Y10T428/31931
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
49 words
A laminate having at least two layers, one of which comprises an uncured flexible skin layer of AES graft copolymer composition of resin-forming monomeric material on an ethylene-propylene-non-conjugated diene terpolymer rubber spine, and the other layer being a rigid foamed plastic compatible with AES, whereby the laminate is reprocessible.
Claim 2
Dependent Claim
49 words
A laminate having at least two layers, one of which comprises an uncured flexible skin layer of AES graft copolymer composition of resin-forming monomeric material on an ethylene-propylene-non-conjugated diene terpolymer rubber spine, and the other layer being a rigid foamed plastic compatible with AES, whereby the laminate is reprocessible.
Claim 3
Dependent Claim
49 words
A laminate as in claim 1 in which the said foamed layer comprises ABS graft copolymer of resin forming monomers on a polybutadiene rubber spine, the amount of resin being from 51 to 90 parts and the amount of rubber being correspondingly from 49 to 10 parts, by weight.
Claim 4
Dependent Claim
28 words
A laminate as in claim 1 in which the said foamed layer comprises AES graft copolymer composition of resin-forming monomeric material on an ethylene-propylene-non-conjugated diene terpolymer rubber spine.
Claim 5
Dependent Claim
15 words
A laminate as in claim 1 in which the said foamed layer comprises PVC resin.
Claim 6
Dependent Claim
68 words
A laminate comprising outer uncured flexible layers of solid AES graft copolymer composition on each face, and an inner core comprising a rigid foamed plastic layer compatible with AES, whereby the laminate is reprocessible, the said AES being a graft copolymer composition of resin-forming monomeric material on an ethylene-propylene-non-conjugated diene terpolymer rubber spine, the amount of rubber in said AES composition being from 10 to 50% by weight.
Claim 7
Dependent Claim
68 words
A laminate comprising outer uncured flexible layers of solid AES graft copolymer composition on each face, and an inner core comprising a rigid foamed plastic layer compatible with AES, whereby the laminate is reprocessible, the said AES being a graft copolymer composition of resin-forming monomeric material on an ethylene-propylene-non-conjugated diene terpolymer rubber spine, the amount of rubber in said AES composition being from 10 to 50% by weight.
Claim 8
Dependent Claim
48 words
A laminate as in claim 5 in which the foamed layer comprises ABS graft copolymer of resin forming monomers on a polybutadiene rubber spine, the amount of resin being from 51 to 90 parts and the amount of rubber being correspondingly from 49 to 10 parts, by weight.
Claim 9
Dependent Claim
71 words
A laminate as in claims 1 or 6, in which there is an intermediate layer of solid ABS between the outer AES layer(s) and the inner plastic layer, the said intermediate solid ABS layer comprising a graft copolymer of resin forming monomers on a polybutadiene rubber spine, the amount of resin being from 51 to 90 parts and the amount of rubber being correspondingly from 49 to 10 parts, by weight.
Claim 10
Dependent Claim
132 words
In a five-layered, rigid, heat-formable, reprocessible, laminated sheet material having a core sheet of rigid cellular acrylonitrile-butadiene-styrene material, a rigid sheet of solid acrylonitrile-butadiene-styrene material integrally united to each face of said core sheet, and an outer protective skin of flexible adherent material overlying each outer face of the laminate, the improvement wherein the said outer protective skin is an uncured AES graft copolymer composition, the said AES comprising a graft copolymer of resin-forming material on ethylene-propylene non-conjugated diene rubber, having a rubber content of from 10% to 50% by weight, and the said acrylonitrile-butadiene-styrene material comprising a graft copolymer of styrene and acrylonitrile resin on polybutadiene rubber, the amount of resin being from 51 to 90 parts and the amount of rubber being correspondingly from 49 to 10 parts, by weight.
Claim 11
Dependent Claim
132 words
In a five-layered, rigid, heat-formable, reprocessible, laminated sheet material having a core sheet of rigid cellular acrylonitrile-butadiene-styrene material, a rigid sheet of solid acrylonitrile-butadiene-styrene material integrally united to each face of said core sheet, and an outer protective skin of flexible adherent material overlying each outer face of the laminate, the improvement wherein the said outer protective skin is an uncured AES graft copolymer composition, the said AES comprising a graft copolymer of resin-forming material on ethylene-propylene non-conjugated diene rubber, having a rubber content of from 10% to 50% by weight, and the said acrylonitrile-butadiene-styrene material comprising a graft copolymer of styrene and acrylonitrile resin on polybutadiene rubber, the amount of resin being from 51 to 90 parts and the amount of rubber being correspondingly from 49 to 10 parts, by weight.
Claim 12
Dependent Claim
19 words
A laminated sheet as in claim 8 in which the resin-forming material in the AES graft copolymer is styrene-acrylonitrile.
Claim 13
Dependent Claim
21 words
A laminated sheet as in claim 9 in which the rubber content of the AES composition is about 23% by weight.
References Cited (Backward Citations)
US3206354A
Cited
US4202948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-03 | 1987-10-03 | 1988-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-03 | 1991-10-03 | 1992-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-03 | 1995-10-03 | 1996-04-03 | $7700.00 | Window Closed / Lapsed |