US4342846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of a polyester resin and impact resistant interpolymer
Assignee: General Electric Co
•
Filing: 1981-03-09
•
Granted: 1982-08-03
•
Expires: 2001-03-09
Abstract
Abstract Blends of a polyester resin, such as polyethylene or polybutylene terephthalate, and an impact resistant interpolymer comprising crosslinked acrylic or methacrylic rubber, crosslinked styrene-acrylonitrile, and uncrosslinked styrene-acrylonitrile polymer components are disclosed.
Inventors
- 👤 Joseph Silberberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:16
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/003; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
33 words
A blend comprising: (1) a polyester resin formed by reaction of a dicarboxylic acid and a diol; and (2) an impact resistant interpolymer comprising crosslinked (meth)acrylate, crosslinked styrene-acrylonitrile, and uncrosslinked styrene-acrylonitrile polymeric components.
Claim 2
Dependent Claim
33 words
A blend comprising: (1) a polyester resin formed by reaction of a dicarboxylic acid and a diol; and (2) an impact resistant interpolymer comprising crosslinked (meth)acrylate, crosslinked styrene-acrylonitrile, and uncrosslinked styrene-acrylonitrile polymeric components.
Claim 3
Dependent Claim
50 words
A blend as claimed in claim 1 wherein the interpolymer comprises from about 5% to about 50%, by weight, of the (meth)acrylate component, from about 5% to about 35%, by weight, of the crosslinked styrene-acrylonitrile component, and from about 15% to about 90%, by weight, of the uncrosslinked styrene-acrylonitrile component.
Claim 4
Dependent Claim
26 words
A blend as claimed in claim 1 or 2 which comprises a weight ratio of polyester resin to interpolymer of from about 10:90 to about 90:10.
Claim 5
Dependent Claim
34 words
A blend as claimed in either claim 1 or 2 wherein the weight ratio of polyester resin to interpolymer is either from about 10:90 to about 30:70 or from about 70:30 to about 90:10.
Claim 6
Dependent Claim
44 words
A blend as claimed in either claim 1 or 2 wherein the (meth)acrylate component of the interpolymer 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
26 words
A blend as claimed in either claim 1 or 2 wherein the (meth)acrylate component of the interpolymer is a crosslinked C 4 -C 8 alkyl acrylate.
Claim 8
Dependent Claim
17 words
A blend as claimed in either claim 1 or 2 wherein the polyester resin is polyethylene terephthalate.
Claim 9
Dependent Claim
17 words
A blend as claimed in either claim 1 or 2 wherein the polyester resin is polybutylene terephthalate.
Claim 10
Dependent Claim
71 words
A blend as claimed in either claim 1 or 2 wherein the weight ratio of polyester resin to interpolymer is from about 10:90 to about 90:10 and the interpolymer comprises from about 5% to about 50%, by weight, of a crosslinked polybutyl acrylate component, from about 5% to about 35%, by weight, of the crosslinked styrene-acrylonitrile component, and from about 15% to about 90%, by weight, of the uncrosslinked styrene-acrylonitrile component.
References Cited (Backward Citations)
US3919353A
Cited
US4148842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-02 | 1986-02-01 | 1986-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-02 | 1990-02-01 | 1990-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-02 | 1994-02-01 | 1994-08-03 | $7700.00 | Window Closed / Lapsed |