US4579909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ternary combination of acrylate-styrene-acrylonitrile terpolymer, poly methyl methacrylate and polycarbonate
Assignee: General Electric Co
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Filing: 1984-12-18
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Granted: 1986-04-01
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Expires: 2004-12-18
Abstract
Abstract There is provided a ternary component thermoplastic composition offering an improved combination of impact and flexural properties comprising an acrylate-styrene-acrylonitrile terpolymer resin, a poly (methyl methacrylate) resin, and a polycarbonate resin.
Inventors
- 👤 Harold F. Giles, Jr.
- 👤 Jay N. Sasserath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:03
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/14; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L33/12; C08L69/00; C08L55/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
20 words
A thermoplastic composition comprising: (a) an acrylate-styrene-acrylonitrile terpolymer resin; (b) a poly (methyl methacrylate) resin; and (c) a polycarbonate resin.
Claim 2
Dependent Claim
20 words
A thermoplastic composition comprising: (a) an acrylate-styrene-acrylonitrile terpolymer resin; (b) a poly (methyl methacrylate) resin; and (c) a polycarbonate resin.
Claim 3
Dependent Claim
20 words
A composition as in claim 1 wherein said composition is a ternary blend of said resins (a), (b), and (c).
Claim 4
Dependent Claim
19 words
A composition as in claim 1 wherein said composition is a reaction product of a plurality of said resins.
Claim 5
Dependent Claim
38 words
A composition as in claim 1 wherein said resins are present on a weight percent basis as (a) 10 to 90 percent acrylate-styrene-acrylonitrile terpolymer; (b) 10 to 90 percent poly (methyl methacrylate); (c) 5 to 90 percent polycarbonate.
Claim 6
Dependent Claim
22 words
A composition as in claim 4 wherein said acrylate-styrene-acrylonitrile terpolymer is present in an amount of 50 to 85 percent by weight.
Claim 7
Dependent Claim
23 words
A composition as in claim 4 wherein said poly (methyl methacrylate) is present in an amount of 10 to 40 percent by weight.
Claim 8
Dependent Claim
21 words
A composition as in claim 4 wherein said polycarbonate is present in an amount of 5 to 40 percent by weight.
Claim 9
Dependent Claim
22 words
A composition as in claim 1 wherein said acrylate-styrene-acrylonitrile interpolymer is comprised of crosslinked (meth)acrylate, crosslinked styrene-acrylonitrile, and uncrosslinked styrene-acrylonitrile polymeric components.
Claim 10
Dependent Claim
47 words
A composition as in claim 8 wherein the interpolymer comprises from about 5 to 50 weight percent of the (meth) acrylate component, from about 5 to 35 weight percent of the crosslinked styrene-acrylonitrile component, and from about 15 to 90 weight percent of the uncrosslinked styrene-acrylonitrile component.
Claim 11
Dependent Claim
35 words
A composition as in claim 9 wherein the (meth)acrylate component is selected from the group consisting of crosslinked C 2 -C 10 alkyl acrylates, crosslinked C 8 -C 22 alkyl methacrylates and compatible mixtures thereof.
Claim 12
Dependent Claim
19 words
A composition as in claim 10 wherein the (meth)acrylate component is a crosslinked C 4 -C 8 alkyl acrylate.
Claim 13
Dependent Claim
23 words
A composition as in claim 1 wherein said poly (methyl methacrylate) is the polymerization product of a methacrylate and a lower alkyl alcohol.
Claim 14
Dependent Claim
16 words
A composition as in claim 1, further comprising a flame retarding amount of flame retardant agent.
Claim 15
Dependent Claim
15 words
A composition as in claim 1, further comprising a property improving amount of impact modifier.
Claim 16
Dependent Claim
14 words
A composition as in claim 1, further comprising a reinforcing amount of filler material.
References Cited (Backward Citations)
JPS57185340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |