US3721648A
Expired / Lapsed
US
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Radiation-crosslinkable polymers prepared from olefinically unsaturated monomers and vinylene carbonyl monomers
Assignee: Bayer AG
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Filing: 1971-03-16
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Granted: 1973-03-20
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Expires: 1991-03-16
Abstract
Abstract Polymers and Copolymers of olefinically unsaturated monomers with radiation-crosslinkable vinylene carbonyl groups (-CH CH-CO) or vinylene carbonyl vinylene groups (-CH CH-CO-CH CH-) are obtained by radicalic polymerization in heterogeneous phase at a temperature between about 0*-150* C.
Inventors
- 👤 L Mott
- 👤 B Ehrig
- 👤 E Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:27
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/28; B; B29; B29C; B29C71/00; B29C71/04; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/30; B29K; B29K2096/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
52 words
The process of claim 1 wherein (B) is of the formula wherein R1 is hydrogen or methyl, R2 is hydrogen, halogen, alkyl having one to four carbon atoms, aryl having six to 10 carbon atoms or alkoxy having one to four carbon atoms aNd m has a value of zero or 1.
Claim 2
Dependent Claim
52 words
The process of claim 1 wherein (B) is of the formula wherein R1 is hydrogen or methyl, R2 is hydrogen, halogen, alkyl having one to four carbon atoms, aryl having six to 10 carbon atoms, or alkoxy having one to four carbon atoms and m has a value of zero or 1.
Claim 3
Dependent Claim
69 words
A process as claimed in claim 1 wherein the copolymerizable monomer is at least one monomer from the group consisting of acrylic or methacrylic acid esters with one to 18 carbon atoms in the alcohol moiety, styrene, a nuclear-substituted halogenostyrene, a nuclear-substituted alkyl styrene with one to four carbon atoms in the alkyl group, and a side-chain-substituted alkyl styrenes with one to two carbon atoms in the alkyl group.
Claim 4
Dependent Claim
101 words
The product produced by the process of polymerizing in heterogeneous phase, A. from 99.9 to 95 percent of at least one monomer selected from the group consisting of acrylic and methacrylic acid esters with one to eight carbon atoms in the alcohol moiety and styrene and B. from 0.1 to 5 percent by weight of a monomer of the formula wherein R1 is hydrogen or methyl, R2 is hydrogen, halogen, alkyl having one to four carbon atoms, aryl having six to 10 carbon atoms or alkoxy having one to four carbon atoms and m has a value of zero or 1.
Claim 5
Dependent Claim
103 words
The product produced by the process of polymerizing, in heterogeneous phase, A. from 99.9 to 95 percent by weight of at least one monomer selected from the group consisting of acrylic and methacrylic acid esters with one to eight carbon atoms in the alcohol moiety and styrene and B. from 0.1 to 5 percent by weight of a monomer of the formula wherein R1 is hydrogen or methyl, R2 is hydrogen, halogen, alkyl having one to four carbon atoms, aryl having six to 10 carbon atoms or alkoxy having one to four carbon atoms and m has a value of zero or 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |