US4677183A
Expired / Lapsed
US
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Polycarbonate exhibiting improved impact properties containing divalent residue of polymerized, partially hydrogenated conjugated alkadiene monomer
Assignee: General Electric Co
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Filing: 1985-11-12
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Granted: 1987-06-30
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Expires: 2005-11-12
Abstract
Abstract High molecular weight thermoplastic aromatic carbonate resin exhibiting improved impact properties comprised of the polymerized reaction products of: (i) at least one dihydric phenol; (ii) a carbonate precursor; and (iii) an amount effective to improve the impact properties of said resin of at least one polymer represented by the formula ##STR1## wherein A represents a divalent residue of at least one polymerized and partially hydrogenated conjugated alkadiene monomer and has a weight average molecular weight of at least about 600, and X is independently selected from halogen radicals.
Inventors
- 👤 Victor Mark, deceased
- 👤 legal representive by Ester H. Mark
- 👤 Edward N. Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:26
CPC Classifications
C; C08; C08G; C08G64/00; C08G64/16; C08G63/00; C08G63/64
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
129 words
A carbonate resin exhibiting improved impact properties comprised of (i) at least one recurring structural unit represented by the formula ##STR13## (ii) an amount at least effective to improve the impact properties of said resin of at least one recurring structural unit represented by the formula ##STR14## wherein R is independently selected from halogen, monovalent hydrocarbon, or monovalent hydrocarbonoxy radicals, R' is independently selected from halogen, monovalent hydrocarbon, or monovalent hydrocarbonoxy radicals, W is selected from divalent hydrocarbon radicals, ##STR15## A is the divalent residue of a polymerized and partially hydrogenated conjugated alkadiene and has a weight average molecular weight of at least about 600, m and m' are independently selected from integers having a value of from 0 to 4 inclusive, and b is either zero or one.
Claim 2
Dependent Claim
129 words
A carbonate resin exhibiting improved impact properties comprised of (i) at least one recurring structural unit represented by the formula ##STR13## (ii) an amount at least effective to improve the impact properties of said resin of at least one recurring structural unit represented by the formula ##STR14## wherein R is independently selected from halogen, monovalent hydrocarbon, or monovalent hydrocarbonoxy radicals, R' is independently selected from halogen, monovalent hydrocarbon, or monovalent hydrocarbonoxy radicals, W is selected from divalent hydrocarbon radicals, ##STR15## A is the divalent residue of a polymerized and partially hydrogenated conjugated alkadiene and has a weight average molecular weight of at least about 600, m and m' are independently selected from integers having a value of from 0 to 4 inclusive, and b is either zero or one.
Claim 3
Dependent Claim
25 words
The resin of claim 1 which contains at least about 1.0 weight percent of (ii), based on the total amounts of (i) and (ii) present.
Claim 4
Dependent Claim
15 words
The resin of claim 2 which contains at least about 2 weight percent of (ii).
Claim 5
Dependent Claim
15 words
The resin of claim 3 which contains at least about 3 weight percent of (ii).
Claim 6
Dependent Claim
47 words
The resin of claim 1 wherein said conjugated alkadiene is a monomer represented by the formula ##STR16## wherein R 1 -R 6 are independently selected from halogen, hydrogen, or alkyl radicals, with the proviso that not more than two of R 1 -R 6 are halogen radicals.
Claim 7
Dependent Claim
18 words
The resin of claim 5 wherein R 1 -R 6 are independently selected from hydrogen or alkyl radicals.
Claim 8
Dependent Claim
17 words
The resin of claim 6 wherein said alkadiene monomer is selected from 1,3-butadiene, 2-methyl-l,3-butadiene, or mixtures thereof.
Claim 9
Dependent Claim
10 words
The resin of claim 7 wherein said alkadiene is 1,3-butadiene.
Claim 10
Dependent Claim
29 words
The resin of claim 1 wherein said monovalent hydrocarbon radicals represented by R and R' are selected from alkyl radicals, cycloalkyl radicals, aryl radicals, aralkyl radicals, or alkaryl radicals.
Claim 11
Dependent Claim
25 words
The resin of claim 9 wherein said divalent hydrocarbon radical represented by W is selected from alkylene radicals, alkylidene radicals, cycloalkylene radicals, or cycloalkylidene radicals.
Claim 12
Dependent Claim
15 words
The resin of claim 10 weherein said divalent hydrocarbon radical W is an alkylidene radical.
Claim 13
Dependent Claim
11 words
The resin of claim 11 wherein said alkylidene radical is 2,2-propylidene.
Claim 14
Dependent Claim
15 words
The resin of claim 10 wherein said divalent hydrocarbon radical W is a cycloalkylidene radical.
Claim 15
Dependent Claim
18 words
The resin of claim 13 wherein said cycloalkylidene radical contains from 10 to about 16 ring carbon atoms.
Claim 16
Dependent Claim
11 words
The resin of claim 14 wherein said cycloalkylidene radical is 1,1-cyclododecylidene.
Claim 17
Dependent Claim
20 words
The resin of claim 1 wherein (ii) is at least one recurring structural unit represented by the general formula ##STR17##
Claim 18
Dependent Claim
19 words
The resin of claim 1 wherein (ii) is at least one recurring structural unit represented by the formula ##STR18##
Claim 19
Dependent Claim
20 words
The resin of claim 1 which contains admixed therewith a flame retardant amount of at least one flame retardant compound.
Claim 20
Dependent Claim
24 words
The resin of claim 18 wherein said flame retardant compound is selected from the alkali or alkaline earth metal salts of organic sulfonic acids.
References Cited (Backward Citations)
US4487917A
Cited
US4564655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |