US3607847A
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Halogenated acrylic monomers and polymers
Assignee: Pechiney SA
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Filing: 1969-10-02
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Granted: 1971-09-21
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Expires: 1989-10-02
Abstract
Abstract Halogenated acrylic monomers of the formula WHEREIN R1 and R2 each is a hydrogen atom or a methyl group, X is a chlorine or a bromine atom, and n is an integer from 1 to 5, are prepared by reacting in the presence of an acid acceptor, (a) halogenated acetyl chloride of the formula
Inventors
- 👤 Maurice Troussier
- 👤 Edouard Grimaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:45
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; C08F20/22
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
119 words
An acrylic elastomer comprising a copolymerized product of (a) a halogenated acrylic monomer of the formula wherein R1 and R2 each is a hydrogen atom or a methyl group, n is an integer from 1 to 5 and X is a chlorine or bromine atom, (b) a nonhalogenated alkyl acrylic ester wherein the alkyl group contains 1 to 8 carbon atoms and (c) one or more monomers capable of copolymerizing with monomers of (a) and (b) and where X is chlorine, the amount of chlorine present in the copolymer is between about 0.5 and 5 percent by weight and where X is bromine, the amount of bromine in the polymer is between about 1 and 10 percent by weight.
Claim 2
Dependent Claim
35 words
An acrylic elastomer of claim 1 wherein the halogenated acrylic monomer is Beta (chloroacetoxy) ethyl acrylate and the nonhalogenated acrylic ester is an alkyl acrylate containing 1 to 8 carbon atoms in its alkyl group.
Claim 3
Dependent Claim
35 words
An acrylic elastomer of claim 2 wherein the halogenated acrylic monomer is Beta (chloroacetoxy) ethyl methacrylate and the nonhalogenated acrylic ester is an alkyl acrylate wherein the alkyl group contains 1 to 8 carbon atoms.
Claim 4
Dependent Claim
11 words
A cured product of an acrylic elastomer according to claim 1.
Claim 5
Dependent Claim
11 words
A cured product of an acrylic elastomer according to claim 2.
Claim 6
Dependent Claim
109 words
A process for producing acrylic elastomers which comprises polymerizing in an aqueous suspension (a) a halogenated acrylic monomer of the formula wherein R1 and R2 each is hydrogen atom or a methyl group, n is an integer from 1 to 5 and X is a chlorine or bromine atom, and (b) a nonhalogenated alkyl acrylic ester wherein the alkyl group contains 1 to 8 carbon atoms and where X is chlorine, the amount of chlorine present in the copolymer is between about 0.5 and 5 percent by weight and where X is bromine, the amount of bromine in the polymer is between about 1 and 10 percent by weight.
Claim 7
Dependent Claim
125 words
A process for producing acrylic elastomers which comprises polymerizing in an aqueous suspension (a) a halogenated acrylic monomer of the formula wherein R1 and R2 each is a hydrogen atom or a methyl group, n is an integer from 1 to 5 and X is a chlorine or a bromine atom (b) a nonhalogenated alkyl acrylic ester wherein the alkyl group contains 1 to 8 carbon atoms and (c) one more more monomers copolymerizable with said monomers of group (a) and (b) and where X is chlorine, the amount of chlorine present in the copolymer is between about 0.5 and 5 percent by weight and where X is bromine, the amount of bromine in the polymer is between about 1 and 10 percent by weight.
Claim 8
Dependent Claim
11 words
A method according to claim 7 wherein the X is chlorine.
Claim 9
Dependent Claim
11 words
A method according to claim 7 wherein the X is bromine.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |