US4458060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linked vinyl chloride polymer
Assignee: Kanegafuchi Chemical Industry Co Ltd
•
Filing: 1982-06-01
•
Granted: 1984-07-03
•
Expires: 2002-06-01
Abstract
Abstract A cross-linked vinyl chloride polymer comprising (a) vinyl chloride or a mixture of vinyl chloride with a monomer copolymerizable therewith and (b) a bisphenol-modified diacrylate or dimethacrylate as a cross-linking agent. The cross-linked polymer has excellent heat stability and delustering effect, and a composition containing the cross-linked polymer as a resin component or containing it as a delustering agent for a thermoplastic resin can give with good processability a molded article having a delustered surface, a good uniformity in surface roughness, a good hand touchness and an excellent heat stability.
Inventors
- 👤 Kazumasa Yamane
- 👤 Masahiro Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:59
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
224 words
A cross-linked vinyl chloride polymer comprising (a) a first member selected from the group consisting of vinyl chloride and a mixture of at least 50% by weight of vinyl chloride and a vinyl monomer copolymerizable therewith and (b) a second member selected from the group consisting of a compound of the general formula (I): ##STR23## wherein R 1 is hydrogen or methyl; R 2 is hydrogen or an alkyl group having 1 to 4 carbon atoms; R 3 and R 4 are independently selected from the group consisting of hydrogen, --CH 3 , --CH 2 CH 3 and --CH 2 CH 2 COOH; m and n are integers each having a value of 1 to 10; and X is bromine, chlorine or hydrogen, a compound of the general formula (II): ##STR24## wherein R 1 , R 3 , R 4 and X are as defined above, and l is 0 or an integer having a value of 1 to 20, and a compound of the general formula (III): ##STR25## wherein R 1 , R 2 , R 3 , R 4 , X and l are as defined above, and p and q are integers each having a value of 1 to 5; the amount of component (a) being 0.01 to 21 percent by weight of the total amount of components (a) and (b).
Claim 2
Dependent Claim
224 words
A cross-linked vinyl chloride polymer comprising (a) a first member selected from the group consisting of vinyl chloride and a mixture of at least 50% by weight of vinyl chloride and a vinyl monomer copolymerizable therewith and (b) a second member selected from the group consisting of a compound of the general formula (I): ##STR23## wherein R 1 is hydrogen or methyl; R 2 is hydrogen or an alkyl group having 1 to 4 carbon atoms; R 3 and R 4 are independently selected from the group consisting of hydrogen, --CH 3 , --CH 2 CH 3 and --CH 2 CH 2 COOH; m and n are integers each having a value of 1 to 10; and X is bromine, chlorine or hydrogen, a compound of the general formula (II): ##STR24## wherein R 1 , R 3 , R 4 and X are as defined above, and l is 0 or an integer having a value of 1 to 20, and a compound of the general formula (III): ##STR25## wherein R 1 , R 2 , R 3 , R 4 , X and l are as defined above, and p and q are integers each having a value of 1 to 5; the amount of component (a) being 0.01 to 21 percent by weight of the total amount of components (a) and (b).
Claim 3
Dependent Claim
47 words
The cross-linked polymer of claim 1 wherein the copolymerizable vinyl monomer is a member selected from the group consisting of a monoolefin, vinyl ester, vinyl ether, acrylic acid and esters thereof, methacrylic acid and esters thereof, maleic acid, fumaric acid, an aromatic vinyl compound, and vinylidene halide.
Claim 4
Dependent Claim
13 words
The cross-linked polymer of claim 1, wherein said first member is vinyl chloride.
Claim 5
Dependent Claim
18 words
The cross-linked polymer of claim 3, wherein said second member is a compound of the general formula (I).
Claim 6
Dependent Claim
31 words
The cross-linked polymer of claim 4, wherein R 1 , R 2 , and X are hydrogen, R 3 and R 4 are methyl, m is two and n is two.
Claim 7
Dependent Claim
30 words
The cross-linked polymer of claim 4, wherein R 1 , R 2 and X are hydrogen, R 3 and R 4 are methyl, m is two and n is two.
Claim 8
Dependent Claim
31 words
The cross-linked polymer of claim 4 wherein R 1 , R 3 and R 4 are methyl, R 2 is hydrogen, X is bromine, m is one and n is one.
Claim 9
Dependent Claim
31 words
The cross-linked polymer of claim 4, wherein R 1 , R 3 and R 4 are methyl, R 2 is hydrogen, X is chlorine, m is one and n is one.
Claim 10
Dependent Claim
18 words
The cross-linked polymer of claim 3, wherein said second member is a compound of the general formula (II).
Claim 11
Dependent Claim
24 words
The cross-linked polymer of claim 9, wherein R 1 and X are hydrogen, R 3 and R 4 are methyl and l is zero.
Claim 12
Dependent Claim
24 words
The cross-linked polymer of claim 9, wherein R 1 and X are hydrogen, R 3 and R 4 are methyl and l is three.
Claim 13
Dependent Claim
22 words
The cross-linked polymer of claim 9, wherein R 1 is methyl, R 3 and R 4 are hydrogen and l is zero.
Claim 14
Dependent Claim
26 words
The cross-linked polymer of claim 9, wherein R 1 and R 3 are methyl, R 4 is --CH 2 CH 2 COOH and l is zero.
Claim 15
Dependent Claim
18 words
The cross-linked polymer of claim 3, wherein said second member is a compound of the general formula (III).
Claim 16
Dependent Claim
33 words
The cross-linked polymer of claim 14, wherein R 1 , R 3 and R 4 are methyl, R 2 and X are hydrogen, l is zero, p is one and q is one.
Claim 17
Dependent Claim
33 words
The cross-linked polymer of claim 14, wherein R 1 , R 2 and X are hydrogen, R 3 and R 4 are methyl, l is two, p is two and q is two.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-03 | 1988-01-02 | 1988-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-03 | 1992-01-02 | 1992-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-03 | 1996-01-02 | 1996-07-03 | $7700.00 | Window Closed / Lapsed |