Patent US4831079A successfully refreshed from Google Patents.
US4831079A
Expired / Lapsed
US
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Blends of an ASA terpolymer, an acrylic polymer and an acrylate based impact modifier
Assignee: General Electric Co
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Filing: 1987-12-23
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Granted: 1989-05-16
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Expires: 2007-12-23
Abstract
Abstract Blends of (i) an impact resistant interpolymer comprising crosslinked acrylic or methacrylic rubber, crosslinked styrene-acrylonitrile, and uncrosslinked styrene-acrylonitrile polymer components, (ii) a styrene-acrylonitrile copolymer resin, (iii) an acrylic polymer, and (iv) a multistage grafted acrylic elastomer are disclosed. The blends display a good combination of physical properties including gloss, impact strength and tensile properties.
Inventors
- 👤 Sai-Pei Ting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:35
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/18; C08L33/00; C08L33/04; C08L33/06; C08L2205/00; C08L2205/22; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L33/08; C08L51/00; C08L53/00; Y; Y10; Y10S; Y10S525/00; Y10S525/902; Y10S525/903
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
A weatherable impact resistant composition comprising: A. 100 parts by weight of a blend comprised of: (a) an acrylate-styrene-acrylonitrile terpolymer resin; (b) a styrene-acrylonitrile copolymer resin; (c) an acrylic resin made by the polymerization of acrylic ester monomers; and B. 1 to 40 parts by weight per 100 parts of blend A of an impact modifying component comprised of a crosslinked alkyl acrylate-graft acrylate copolymer.
Claim 2
Dependent Claim
65 words
A weatherable impact resistant composition comprising: A. 100 parts by weight of a blend comprised of: (a) an acrylate-styrene-acrylonitrile terpolymer resin; (b) a styrene-acrylonitrile copolymer resin; (c) an acrylic resin made by the polymerization of acrylic ester monomers; and B. 1 to 40 parts by weight per 100 parts of blend A of an impact modifying component comprised of a crosslinked alkyl acrylate-graft acrylate copolymer.
Claim 3
Dependent Claim
18 words
A composition as in claim 1 wherein said impact modifying component is crosslinked n-butyl acrylate-graft-poly methyl (meth) acrylate.
Claim 4
Dependent Claim
35 words
A composition as in claim 1 wherein said acrylate-styrene-acrylonitrile terpolymer resin is comprised of a combination of (i) a crosslinked (meth)acrylate surrounded and interpenetrated by a crosslinked styrene-acrylonitrile copolymer; and (ii) a linear styrene-acrylonitrile copolymer.
Claim 5
Dependent Claim
50 words
A composition as in claim 3 wherein the acrylate-styrene-acrylonitrile terpolymer resin is comprised of about 5% to about 50% by weight of the (meth)acrylate component, and about 5% to 35% by weight of the crosslinked styrene-acrylonitrile component, and from about 15% to 90% by weight of the uncrosslinked styrene-acrylonitrile component.
Claim 6
Dependent Claim
37 words
A composition as in claim 3 wherein the (meth)acrylate component is selected from the group consisting of the crosslinked C 2 -C 10 alkyl acrylates, the crosslinked C 8 -C 22 alkyl methacrylates, and compatible mixtures thereof.
Claim 7
Dependent Claim
19 words
A composition as in claim 5 wherein the (meth)acrylate component is a crosslinked C 4 -C 8 alkyl acrylate.
Claim 8
Dependent Claim
14 words
A composition as in claim 1 wherein the acrylic resin (B) is polymethyl (meth)acrylate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |