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US4143089A
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Silylated polymers
Assignee: Wacker Chemical Corp
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Filing: 1976-11-22
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Granted: 1979-03-06
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Expires: 1996-11-22
Abstract
Abstract Alkali metal terminated organic polymers are reacted with silicon containing compounds having aliphatic unsaturation to produce a new class of reactive silylated organic polymers. These silyated organic polymers can be in turn reacted with cyclic siloxanes to produce silylated organic-organopolysiloxane block copolymers which are useful as protective coatings, surfactants and as elastomers.
Inventors
- 👤 Eugene R. Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:48
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/442; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/08; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/12; C08F297/00; C08F297/02; C08G77/48; C08G77/50; C08G81/00; C08G81/02; C08G85/00; C08G85/004; C08K; C08K5/00; C08K5/0008; C08K5/0025; C08L; C08L43/00; C08L43/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
118 words
A carbanion containing silylated organic polymer obtained from the reaction of a silane of the formula ##STR16## where R is a monovalent hydrocarbon radical, X is selected from the class consisting of halogen, acyloxy radicals, hydrocarbonoxy radicals, sulfato radicals, phosphato radicals and perchlorato radicals, a is a number of from 1 to 3, b is a number of from 0 to 2 and the sum of (a + b) is a number of from 1 to 3, with a carbanion containing organic polymer at a temperature up to about 150° C., said carbanion containing organic polymer is obtained from the polymerization of an unsaturated organic monomer having carbon-to-carbon double bonds in the presence of a carbanion forming catalyst.
Claim 2
Dependent Claim
118 words
A carbanion containing silylated organic polymer obtained from the reaction of a silane of the formula ##STR16## where R is a monovalent hydrocarbon radical, X is selected from the class consisting of halogen, acyloxy radicals, hydrocarbonoxy radicals, sulfato radicals, phosphato radicals and perchlorato radicals, a is a number of from 1 to 3, b is a number of from 0 to 2 and the sum of (a + b) is a number of from 1 to 3, with a carbanion containing organic polymer at a temperature up to about 150° C., said carbanion containing organic polymer is obtained from the polymerization of an unsaturated organic monomer having carbon-to-carbon double bonds in the presence of a carbanion forming catalyst.
Claim 3
Dependent Claim
17 words
The silylated organic polymer of claim 1 where the organic monomer is a hydrocarbon having carbon-to-carbon unsaturation.
Claim 4
Dependent Claim
12 words
The silylated organic polymer of claim 1 where the monomer is styrene.
Claim 5
Dependent Claim
12 words
The silylated organic polymer of claim 1 where the silane is vinyltrichlorosilane.
Claim 6
Dependent Claim
12 words
The silylated organic polymer of claim 1 where the silane is methylvinyldichlorosilane.
Claim 7
Dependent Claim
12 words
The silylated organic polymer of claim 1 where the monomer is isoprene.
Claim 8
Dependent Claim
14 words
The silylated organic polymer of claim 1 where the monomer is an alkyl acrylate.
Claim 9
Dependent Claim
12 words
The silylated organic polymer of claim 1 where the monomer is acrylonitrile.
Claim 10
Dependent Claim
12 words
The silylated organic polymer of claim 1 wherein the monomer is butadiene.
Claim 11
Dependent Claim
12 words
The silylated organic polymer of claim 1 where the silane is vinyltriacetoxysilane.
Claim 12
Dependent Claim
18 words
The silylated organic polymer of claim 1 where the monomer consists of a mixture of styrene and isoprene.
Claim 13
Independent Claim
132 words
A method for preparing a carbanion containing silylated organic polymer which comprises reacting in the presence of an aprotic solvent a silane of the formula ##STR17## where R is selected from the class consisting of a monovalent hydrocarbon radical, X is selected from the class consisting of halogen, acyloxy radicals, hydrocarbonoxy radicals, sulfato radicals, phosphato radicals and perchlorato radicals, a is a number of from 1 to 3, b is a number of from 0 to 2 and the sum of (a + b) is a number of from 1 to 3 with a carbanion containing organic polymer at a temperature up to about 150° C., said carbanion containing organic polymer is obtained from the polymerization of an unsaturated organic monomer having carbon-to-carbon unsaturation in the presence of a carbanion forming catalyst.
Claim 14
Independent Claim
132 words
A method for preparing a carbanion containing silylated organic polymer which comprises reacting in the presence of an aprotic solvent a silane of the formula ##STR17## where R is selected from the class consisting of a monovalent hydrocarbon radical, X is selected from the class consisting of halogen, acyloxy radicals, hydrocarbonoxy radicals, sulfato radicals, phosphato radicals and perchlorato radicals, a is a number of from 1 to 3, b is a number of from 0 to 2 and the sum of (a + b) is a number of from 1 to 3 with a carbanion containing organic polymer at a temperature up to about 150° C., said carbanion containing organic polymer is obtained from the polymerization of an unsaturated organic monomer having carbon-to-carbon unsaturation in the presence of a carbanion forming catalyst.
Claim 15
Dependent Claim
11 words
The method of claim 12 where the aprotic solvent is tetrahydrofuran.
Claim 16
Dependent Claim
12 words
The method of claim 13 where the carbanion producing catalyst is 9-fluorenylsodium.
Claim 17
Dependent Claim
12 words
The method of claim 12 where the carbanion producing catalyst is butyllithium.
Claim 18
Dependent Claim
12 words
The method of claim 12 where the unsaturated organic monomer is styrene.
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) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |