US4328323A
Expired / Lapsed
US
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Production of silane modified copolymers of alkylene-alkyl acrylates
Assignee: Union Carbide Corp
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Filing: 1980-09-30
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Granted: 1982-05-04
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Expires: 2000-09-30
Abstract
Abstract The disclosure of this application is directed to the production of silane modified copolymers of alkylene-alkyl acrylates by reacting a mixture containing a polysiloxane, particularly an organo titanate containing polysiloxane and a copolymer of alkylene-alkyl acrylate to produce a water curable, silane modified copolymer. The silane modified copolymers can be extruded about electrical conductors to provide insulation thereon characterized by improved surface characteristics.
Inventors
- 👤 Michael J. Keogh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:54
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; C; C08; C08F; C08F8/00; C08F8/42; C08G; C08G77/00; C08G77/60; C08G81/00; C08G81/02; C08G81/024; C08K; C08K9/00; C08K9/04; C08L; C08L83/00; C08L83/16; H01B3/44; H01B3/441
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
82 words
Process of producing a water-curable, silane modified alkylene-alkyl acrylate copolymer which comprises reacting a mixture containing an alkylene-alkyl acrylate copolymer, a polysiloxane having the repeating unit: ##STR11## wherein R is a hydrocarbon radical, or oxy substituted hydrocarbon radical each V is hydrogen, a hydrocarbon radical or a hydrolyzable group and Z is a hydrolyzable group, n is an integer having a value of 1 to 18 inclusive, x is an integer having a value of at least 2 and an organic titanate.
Claim 2
Dependent Claim
82 words
Process of producing a water-curable, silane modified alkylene-alkyl acrylate copolymer which comprises reacting a mixture containing an alkylene-alkyl acrylate copolymer, a polysiloxane having the repeating unit: ##STR11## wherein R is a hydrocarbon radical, or oxy substituted hydrocarbon radical each V is hydrogen, a hydrocarbon radical or a hydrolyzable group and Z is a hydrolyzable group, n is an integer having a value of 1 to 18 inclusive, x is an integer having a value of at least 2 and an organic titanate.
Claim 3
Dependent Claim
18 words
Process as defined in claim 1 conducted at a temperature of about 80° C. to about 300° C.
Claim 4
Dependent Claim
18 words
Process as defined in claim 1 conducted at a temperature of about 150° C. to about 230° C.
Claim 5
Dependent Claim
24 words
Process as defined in claim 1 wherein the organo titanate has the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is hydrogen or a hydrocarbon radical.
Claim 6
Dependent Claim
21 words
Process as defined in claim 4 wherein each R 2 is an alkyl radical having 1 to 18 carbon atoms inclusive.
Claim 7
Dependent Claim
16 words
Process as defined in claim 1 wherein the said copolymer is a copolymer of ethylene-ethyl acrylate.
Claim 8
Dependent Claim
26 words
Process as defined in claim 1 wherein R is the repeating unit of the silane is an alkylene radical having 1 to 18 carbon atoms inclusive.
Claim 9
Dependent Claim
21 words
Process as defined in claim 1 wherein R in the repeating unit of the silane is --CH 2 --CH 2 --.
Claim 10
Dependent Claim
18 words
Process as defined in claim 1 wherein each V in the repeating unit of the silane is methoxy.
Claim 11
Dependent Claim
16 words
Process as defined in claim 1 wherein the organo titanate is tetraisopropyl titanate or tetrabutyl titanate.
Claim 12
Dependent Claim
33 words
Process as defined in claim 1 wherein the organo titanate is present in an amount of about 0.001 to about 25 percent by weight based on the combined weight of copolymer and polysiloxane.
Claim 13
Dependent Claim
30 words
Process as defined in claim 1 wherein the polysiloxane is present in an amount of about 0.5 to about 10 percent by weight based on the weight of the copolymer.
Claim 14
Dependent Claim
13 words
Process as defined in claim 1 wherein the polysiloxane contains combined organo titanate.
Claim 15
Dependent Claim
15 words
Process as defined in claim 1 wherein the organo titanate is combined with the polysiloxane.
Claim 16
Dependent Claim
16 words
Process as defined in claim 1 wherein each V and Z of the polysiloxane are methoxy.
Claim 17
Dependent Claim
23 words
Process as defined in claim 1 wherein Z of the polysiloxane is methoxy, one V is methoxy and the second V is methyl.
Claim 18
Dependent Claim
14 words
Process as defined in claim 1 wherein the polysiloxane is derived from acetooxyethyltrimethoxy silane.
Claim 19
Dependent Claim
14 words
Process as defined in claim 1 wherein the polysiloxane is derived from acetooxyethylmethyldimethoxy silane.
Claim 20
Dependent Claim
24 words
Process as defined in claim 1 wherein the said copolymer is a copolymer of ethylene-ethyl acrylate and the polysiloxane is derived from acetooxyethyltrimethoxy silane.
Claim 21
Dependent Claim
24 words
Process as defined in claim 1 wherein the said copolymer is a copolymer of ethylene-ethyl acrylate and the polysiloxane is derived from acetooxyethylmethyldimethoxy silane.
Claim 22
Dependent Claim
13 words
A water-curable silane modified alkylenealkyl acrylate copolymer produced as defined in claim 1.
Claim 23
Dependent Claim
13 words
A water-curable silane modified alkylenealkyl acrylate copolymer produced as defined in claim 6.
Claim 24
Dependent Claim
13 words
A water-curable silane modified alkylenealkyl acrylate copolymer produced as defined in claim 14.
Claim 25
Dependent Claim
13 words
A water-curable silane modified alkylenealkyl acrylate copolymer produced as defined in claim 19.
Claim 26
Dependent Claim
13 words
A water-curable silane modified alkylenealkyl acrylate copolymer produced as defined in claim 20.
Claim 27
Dependent Claim
12 words
The cured product of the composition produced as defined in claim 1.
Claim 28
Dependent Claim
13 words
An insulated electrical conductor having thereon the cured product defined in claim 26.
Claim 29
Dependent Claim
14 words
Process as defined in claim 1 wherein the mixture contains a silanol condensation catalyst.
Claim 30
Dependent Claim
14 words
Process as defined in claim 28 wherein the silanol condensation catalyst is dibutyltin dilaurate.
Claim 31
Dependent Claim
13 words
A water-curable, silane modified alkylene-alkyl acrylate copolymer produced as defined in claim 28.
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) | 1985-05-03 | 1985-11-02 | 1986-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-03 | 1989-11-02 | 1990-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-03 | 1993-11-02 | 1994-05-04 | $7700.00 | Window Closed / Lapsed |