US4894416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low gloss thermoplastic blends
Assignee: SABIC Global Technologies BV
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Filing: 1988-12-27
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Granted: 1990-01-16
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Expires: 2008-12-27
Abstract
Abstract A low gloss thermoplastic with good physical properties consists of a blend of ASA and a gloss-reducing amount of a glycidyl (meth)acrylate copolymer.
Inventors
- 👤 Robert R. Gallucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:16
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/003; Y; Y10; Y10S; Y10S525/00; Y10S525/902
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
25 words
A low-gloss thermoplastic blend comprising a core-shell ASA (acrylate-styrene-acrylonitrile interpolymer) resin blended with an effective gloss-reducing amount of at least one polymer of glycidyl (meth)acrylate.
Claim 2
Dependent Claim
25 words
A low-gloss thermoplastic blend comprising a core-shell ASA (acrylate-styrene-acrylonitrile interpolymer) resin blended with an effective gloss-reducing amount of at least one polymer of glycidyl (meth)acrylate.
Claim 3
Dependent Claim
37 words
A low gloss thermoplastic blend as defined in claim 1 wherein said polymer of glycidyl (meth)acrylate is a copolymer of glycidyl methacrylate with at least one comonomer from the group consisting of styrene, acrylonitrile, and alkyl (meth)acrylates.
Claim 4
Dependent Claim
23 words
A low-gloss thermoplastic blend defined in claim 2 wherein said copolymer is present at from about 0.05 to about 10 percent by weight.
Claim 5
Dependent Claim
23 words
A low-gloss thermoplastic blend defined in claim 2 wherein said copolymer is present at from about 0.1 to about 5 percent by weight.
Claim 6
Dependent Claim
32 words
A low-gloss thermoplastic blend defined in claim 2 wherein said copolymer is a copolymer of glycidyl methacrylate with at least one monomer selected from the group consisting of styrene and alkyl (meth)acrylates.
Claim 7
Dependent Claim
40 words
A low-gloss thermoplastic blend defined in claim 1 wherein said ASA resin is a resin having a styrene-acrylonitrile matrix and a core-shell impact modifier of which the shell is styrene-acrylonitrile copolymer and the core is a crosslinked butyl (meth)acrylate rubber.
Claim 8
Dependent Claim
58 words
A low-gloss thermoplastic blend defined in claim 6 wherein said ASA resin comprises about 15 to about 90% of an uncrosslinked matrix of acrylonitrile-styrene copolymer polymerized and partly grafted on a core-shell impact modifier which comprises about 5 to 50% of a crosslinked (meth)acrylate elastomer core and about 15 to about 35% of a crosslinked styrene-acrylonitrile copolymer shell.
Claim 9
Dependent Claim
30 words
A low-gloss thermoplastic blend defined in claim 1 wherein said glycidyl (meth)acrylate copolymer is a copolymer of about 20 weight percent glycidyl methacrylate with about 80 weight percent of styrene.
Claim 10
Dependent Claim
30 words
A low-gloss thermoplastic blend defined in claim 1 wherein said glycidyl (meth)acrylate copolymer is a copolymer of about 50 weight percent glycidyl methacrylate with about 50 weight percent methyl methacrylate.
Claim 11
Dependent Claim
29 words
A low-gloss thermoplastic blend defined in claim 1 wherein said glycidyl (meth)acrylate polymer is a copolymer of about 15 weight percent glycidyl methacrylate with styrene and an alkyl (meth)acrylate.
Claim 12
Dependent Claim
85 words
A low gloss thermoplastic blend which comprises: (a) from about 95 to about 99.1 weight % of an ASA resin having a styrene-acrylonitrile matrix and a core-shell impact modifier of which the shell is styrene-acrylonitrile copolymer and the core is a crosslinked butyl (meth)acrylate rubber; and (b) from about 5 to about 0.1 weight % of a copolymer of about 15 to about 50% glycidyl methacrylate copolymerized with at least one monomer selected from the group consisting of methyl methacrylate, styrene and an alkyl (meth)acrylate.
Claim 13
Dependent Claim
85 words
A low gloss thermoplastic blend which comprises: (a) from about 95 to about 99.1 weight % of an ASA resin having a styrene-acrylonitrile matrix and a core-shell impact modifier of which the shell is styrene-acrylonitrile copolymer and the core is a crosslinked butyl (meth)acrylate rubber; and (b) from about 5 to about 0.1 weight % of a copolymer of about 15 to about 50% glycidyl methacrylate copolymerized with at least one monomer selected from the group consisting of methyl methacrylate, styrene and an alkyl (meth)acrylate.
References Cited (Backward Citations)
US4460742A
Cited
US4731414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-15 | 1993-07-17 | 1994-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-15 | 1997-07-17 | 1998-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-15 | 2001-07-17 | 2002-01-16 | $7700.00 | Window Closed / Lapsed |