US4284732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogen-containing unsaturated bis-esters and polymers and copolymers based on these esters
Assignee: Dynamit Nobel AG
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Filing: 1979-07-19
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Granted: 1981-08-18
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Expires: 1999-07-19
Abstract
Abstract Halogen-containing bis-acrylates and bis-methacrylates corresponding to the formula ##STR1## in which R represents hydrogen or a methyl group and X represents chlorine and/or bromine, are provided as well as a process for producing such compounds. The compounds are useful for the formation of polymers and copolymers and as cross-linking agents. Also included in the invention are the polymers and copolymers based on the above-described halogen-containing bis-acrylates and bis-methacrylates, methods for the production of said polymers and the use of said polymers as flame proofing agents, etc.
Inventors
- 👤 Egon N. Petersen
- 👤 Norbert Vollkommer
- 👤 Georg Blumfeld
- 👤 Hermann Richtzenhain
- 👤 Wilhelm Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:20
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/14; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/30; C08L; C08L101/00; C09K21/06; C09K21/08; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
37 words
A polymer containing basic units with the structural formula ##STR5## in which R represents hydrogen or a methyl group and of the 8X substituents 7X to 8X representing chlorine or bromine and up to 1X represents hydrogen.
Claim 2
Dependent Claim
37 words
A polymer containing basic units with the structural formula ##STR5## in which R represents hydrogen or a methyl group and of the 8X substituents 7X to 8X representing chlorine or bromine and up to 1X represents hydrogen.
Claim 3
Dependent Claim
24 words
A polymer of claim 1 wherein the unsaturated bis-ester of formula (1) represents about 40 to about 99.9% by weight of the recurring units.
Claim 4
Dependent Claim
24 words
A polymer of claim 1 wherein the unsaturated bis-ester of formula (1) represents about 70 to about 99.9% by weight of the recurring units.
Claim 5
Dependent Claim
19 words
A copolymer of claim 1 wherein the unsaturated bis-ester of formula (1) is copolymerized with an ethylenically unsaturated monomer.
Claim 6
Dependent Claim
54 words
A copolymer of claim 4 wherein the ethylenically unsaturated monomer is styrene, acrylonitrile, an acrylic or methacrylic acid ester, an unsubstituted, chlorine- or bromine-substituted benzyl acrylate or methacrylate, an unsubstituted, chlorine- or bromine-substituted xylene bis-acrylate or bis-methacrylate, butadiene, isoprene, fumaric or maleic acid or the anhydride or ester thereof, vinyl chloride or vinylidene chloride.
Claim 7
Dependent Claim
12 words
A copolymer of claim 4 wherein the ethylenically unsaturated monomer is styrene.
Claim 8
Dependent Claim
9 words
A copolymer of claim 4 which is a terpolymer.
Claim 9
Dependent Claim
16 words
A copolymer of claim 4 wherein several ethylenically unsaturated monomers are used to provide a terpolymer.
Claim 10
Dependent Claim
10 words
Plastic containing polymers claimed in claim 1 as flameproofing agents.
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) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |