US4895897A
Expired / Lapsed
US
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Aromatic carbonate compositions modified with oxazoline functionalized polystyrene reacted with an ethylene elastomer containing reactive polar groups
Assignee: Advanced Elastomer Systems LP
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Filing: 1989-03-13
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Granted: 1990-01-23
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Expires: 2009-03-13
Abstract
Abstract Aromatic carbonate compositions having improved impact properties comprising an aromatic carbonate resin and a functionalized elastomeric polymer that is the reaction product of an ethylene elastomer having reactive polar groups and an oxazoline functionalized polystyrene are disclosed.
Inventors
- 👤 Lawrence G. Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:55
CPC Classifications
C; C08; C08L; C08L69/00; C08L69/005
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
41 words
An aromatic carbonate composition comprised of: (a) at least one aromatic carbonate resin; and (b) a functionalized elastomeric polymer comprising the reaction product of (i) an ethylene elastomer having at least one reactive polar group and (ii) an oxazoline functionalized polystyrene.
Claim 2
Dependent Claim
41 words
An aromatic carbonate composition comprised of: (a) at least one aromatic carbonate resin; and (b) a functionalized elastomeric polymer comprising the reaction product of (i) an ethylene elastomer having at least one reactive polar group and (ii) an oxazoline functionalized polystyrene.
Claim 3
Dependent Claim
17 words
The aromatic carbonate composition of claim 1 wherein said aromatic carbonate resin is an aromatic polycarbonate resin.
Claim 4
Dependent Claim
35 words
The aromatic carbonate composition of claim 1 wherein said ethylene elastomer having at least one reactive polar group comprises an ethylene-containing elastomeric polymer that has been copolymerized with at least one ethylenically-unsaturated polar group-containing compound.
Claim 5
Dependent Claim
33 words
The aromatic carbonate composition of claim 3 wherein the polar groups of said at least one ethylenically-unsaturated polar group-containing compound are selected from the group consisting of carboxy, hydroxy, primary and secondary amino.
Claim 6
Dependent Claim
32 words
The aromatic carbonate composition of claim 1 wherein said ethylene elastomer having reactive polar groups comprises an ethylene-containing elastomeric polymer that has been grafted with at least one ethylenically-unsaturated carboxyl group-containing compound.
Claim 7
Dependent Claim
16 words
The aromatic carbonate composition of claim 5 wherein said ethylene-containing elastomeric polymer is an ethylene-alpha-olefin elastomer.
Claim 8
Dependent Claim
25 words
The aromatic carbonate composition of claim 6 wherein said ethylene-alpha-olefin elastomer comprises copolymerized ethylene and propylene and said ethylenically-unsaturated carboxyl group-containing compound is maleic anhydride.
Claim 9
Dependent Claim
27 words
The aromatic carbonate composition of claim 1 wherein said oxazoline functionalized polystyrene comprises copolymerized styrene and at least one ethylenically unsaturated monomer containing a cyclic iminoether group.
Claim 10
Dependent Claim
20 words
The aromatic carbonate composition of claim 8 wherein said ethylenically unsaturated monomer containing a cyclic iminoether group is a 2-alkenyl-2-oxazoline.
Claim 11
Dependent Claim
12 words
The aromatic carbonate composition of claim 9 wherein said 2-alkenyl-2-oxazoline is 2-isopropenyl-2-oxazoline.
Claim 12
Dependent Claim
17 words
The aromatic carbonate composition of claim 7 wherein said oxazoline functionalized polystyrene comprises copolymerized styrene and 2-isopropenyl-2-oxazoline.
Claim 13
Dependent Claim
18 words
The aromatic carbonate composition of claim 7 wherein said oxazoline functionalized polystyrene comprises copolymerized styrene, acrylonitrile and 2-isopropenyl-2-oxazoline.
Claim 14
Dependent Claim
19 words
The aromatic carbonate composition of claim 1 comprising from 2 to 35 weight percent of said functionalized elastomeric polymer.
Claim 15
Dependent Claim
40 words
The aromatic carbonate composition of claim 1 wherein said ethylene elastomer having at least one reactive polar group comprises an ethylene-containing elastomeric polymer that has bee n grafted with at least one ethylenically-unsaturated compound having polar groups reactive with oxazoline.
Claim 16
Dependent Claim
38 words
The aromatic carbonate composition of claim 14 wherein the polar groups of said at least one ethylenically-unsaturated compound having polar groups reactive with oxazoline are selected from the group consisting of carboxy, hydroxy, epoxy, primary and secondary amino.
Claim 17
Dependent Claim
18 words
The aromatic carbonate composition of claim 15 wherein said oxazoline functionalized polystyrene comprises copolymerized styrene and a 2-alkenyl-2-oxazoline.
Claim 18
Dependent Claim
12 words
The aromatic carbonate composition of claim 16 wherein said 2-alkenyl-2-oxazoline is 2-isopropenyl-2-oxazoline.
Claim 19
Dependent Claim
16 words
The aromatic carbonate composition of claim 17 wherein said oxazoline functionalized polystyrene additionally comprises copolymerized acrylonitrile.
Claim 20
Dependent Claim
19 words
The aromatic carbonate composition of claim 14 comprising from 2 to 35 weight percent of said functionalized elastomeric polymer.
Claim 21
Dependent Claim
27 words
The aromatic carbonate composition of claim 1 wherein said ethylene elastomer having at least one reactive polar group comprises an ethylene-containing elastomeric polymer that has been epoxidized.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-01-22 | 1993-07-24 | 1994-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-22 | 1997-07-24 | 1998-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-22 | 2001-07-24 | 2002-01-23 | $7700.00 | Window Closed / Lapsed |