EP0194222A2
Expired / Lapsed
EP
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Preparation of polymers containing pendant isocyanate groups and derivatives thereof by emulsion copolymerization
Assignee: Goodyear Tire and Rubber Co
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Filing: 1986-03-03
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Granted: —
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Expires: 2006-03-03
Abstract
Abstract It has unexpectedly been discovered that 1-(1-isocyana- to-1-methylethyl)-3-(1-methylethenyl) benzene(m-TMI) can be emulsion copolymerized with other monomers into useful polymers. For example, it has been found that m-TM can be emulsion copolymerized with diene monomers to produce polymers which contain pendant isocyanate groups. Such pendant isocyanate groups are useful in a variety of applications. For instance, such pendant isocyanate groups can be utilized as sites to which chemical agents, such as antidegradants, can be bound to the polymer. Elastomers which contain such pendant isocyanate groups are of value since they can be crosslinked without employing sulfur. Elastomers of this type which contain pendant isocyanate groups can also potentially be thermo-reversibly crosslinked.
Inventors
- 👤 Robert Alan Smith
- 👤 Dane Kenton Parker
- 👤 Howard Allen Colvin
- 👤 Arthur Howard Weinstein
- 👤 Dennis Bruce Patterson
- 👤 Kirkwood Storer Cottman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 06:23
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/728; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F212/14
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
38 words
A copolymerization of TMI into TMI containing copolymers characterized in that the polymerization is carried out in an aqueous medium comprising (a) TMI, (b) at least one additional ethylenically unsaturated monomer, (c) an initiator system, and (d) water.
Claim 2
Dependent Claim
38 words
A copolymerization of TMI into TMI containing copolymers characterized in that the polymerization is carried out in an aqueous medium comprising (a) TMI, (b) at least one additional ethylenically unsaturated monomer, (c) an initiator system, and (d) water.
Claim 3
Dependent Claim
52 words
A process for the emulsion copolymerization of TMI with diene monomers characterized in that said emulsion copolymerization is carried out in an aqueous medium containing (a) TMI, (b) at least one diene monomer, (c) an emulsifier, (d) a redox initiator system , (e) a brominated hydrocarbon chain transfer agent, and (f) water.
Claim 4
Dependent Claim
52 words
A process for the emulsion copolymerization of TMI with diene monomers characterized in that said emulsion copolymerization is carried out in an aqueous medium containing (a) TMI, (b) at least one diene monomer, (c) an emulsifier, (d) a redox initiator system , (e) a brominated hydrocarbon chain transfer agent, and (f) water.
Claim 5
Dependent Claim
51 words
A process for the emulsion copolymerization of TMI with diene monomers into TMI containing copolymers characterized in that said emulsion copolymerization is carried out in an aqueous medium containing (a) TMI, (b) at least one diene monomer, (c) an emulsifier, (d) a redox initiator system, (e) diisopropylxanthogen disulfide, and (f) water.
Claim 6
Dependent Claim
51 words
A process for the emulsion copolymerization of TMI with diene monomers into TMI containing copolymers characterized in that said emulsion copolymerization is carried out in an aqueous medium containing (a) TMI, (b) at least one diene monomer, (c) an emulsifier, (d) a redox initiator system, (e) diisopropylxanthogen disulfide, and (f) water.
Claim 7
Dependent Claim
36 words
A crosslinked elastomeric composition characterized by containing polymeric chains which are derived from TMI and at least one diene monomer wherein said polymeric chains are crosslinked with at least one difunctional or polyfunctional active hydrogen compound.
Claim 8
Dependent Claim
36 words
A crosslinked elastomeric composition characterized by containing polymeric chains which are derived from TMI and at least one diene monomer wherein said polymeric chains are crosslinked with at least one difunctional or polyfunctional active hydrogen compound.
Claim 9
Dependent Claim
40 words
A crosslinked elastomeric composition as specified in claim 4 characterized in that said difunctional or polyfunctional active hydrogen compound is a member selected from the group consisting of diamines, dihydroxyalcohols, and dimercaptans, and in that said diene monomer is chloroprene.
Claim 10
Dependent Claim
39 words
A process as specified in claim 2 characterized in that said diene monomer is selected from the group consisting of butadiene, isoprene, piperylene, and chloroprene, and in that said aqueous medium further comprises at least one vinyl aromatic monomer.
Claim 11
Dependent Claim
23 words
A process as specified in claim 3 characterized in that said aqueous medium further comprises acrylonitrile and wherein said diene monomer is butadiene.
Claim 12
Dependent Claim
61 words
A process as specified in claim 2 or claim 6 characterized in that said aqueous medium is comprised of from 40 to 90 weight percent water, from 10 to 60 weight percent TMI and diene monomers, from 0.1 to 10 weight percent of said emulsifier, and an effective amount of said redox initiator system and said brominated hydrocarbon chain transfer agent.
Claim 13
Dependent Claim
29 words
A process as specified in claims 2, 3, 6, 7, or 8 characterized in that said emulsion copolymerization is conducted at a temperature from about -20°C to about 60°C.
Claim 14
Dependent Claim
24 words
A process as specified in claim 6 characterized in that said vinyl aromatic monomer is styrene and in that said diene monomer is butadiene.
References Cited (Backward Citations)
No citation records indexed.
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