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Polysiloxanes and the use thereof in the production of silane modified alkylene-alkyl acrylate copolymers
| Details |
Inventors: Barnabeo, Austin E.;
Assignee: Union Carbide Corporation (Danbury, CT)
Primary Examiner: Marquis; Melvyn I.
Assistant Examiner:
Attorney, Agent or Firm: Arvantes; James C., Brown; Robert C.
Polysiloxanes prepared by reacting a diester and a monomeric silane and the use of the polysiloxanes to produce silane modified, water-curable copolymers by reacting the polysiloxanes with alkylene-alkyl acrylate copolymers in the presence of an organo titanate catalyst. The copolymers so produced can be extruded about electrical conductors and water-cured providing insulation or jacketing thereon. |
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DETAILED DESCRIPTION What is claimed is: 1.
A polysiloxane having the formula: ##STR12## wherein each R is a hydrocarbon radical, R.
sup.
1 is a hydrocarbon radical, each V is hydrogen, a hydrocarbon radical or a hydrolyzable group, Z is a hydrolyzable group, each n is an integer having a value of at least one and x and y are integers each having a value of at least one.
2.
A polysiloxane having the formula: ##STR13## wherein each R is alkylene, R.
sup.
1 is arylene or a cycloaliphatic radical, V is hydrogen, a hydrocarbon radical or a hydrolyzable group, Z is a hydrolyzable group, each n is an integer having a value of one to 1000 inclusive and x and y, each have a value of 1 to 20 inclusive.
3.
A polysiloxane having the formula: ##STR14## wherein each R is alkylene, R.
sup.
1 is arylene, each V is alkoxy, Z is alkoxy, each n is an integer having a value of 5 to 10 inclusive and x and y are integers each having a value of 5 to 25 inclusive.
4.
A polysiloxane as defined in claim 3 wherein each Z is methoxy, each V is methoxy, each R is --CH.
sub.
2 --CH.
sub.
2 --, R.
sup.
1 is phenylene and x and y each have a value of 5.
5.
A polysiloxane as defined in claim 1 containing combined organo titanate.
6.
A process of preparing a polysiloxane which comprises reacting a mixture containing an organo metallic catalyst, a diester having the formula: ##STR15## wherein each R.
sup.
2 is a hydrocarbon radical, and R.
sup.
1 is a hydrocarbon radical; and a monomeric silane having the formula: ##STR16## wherein R.
sup.
3 is a hydrocarbon radical, R is a hydrocarbon radical, each V is hydrogen, a hydrocarbon radical or a hydrolyzable group, Z is a hydrolyzable group and n is an integer having a value of at least one.
7.
A process of preparing a polysiloxane which comprises reacting a mixture containing a diester having the formula: ##STR17## wherein each R.
sup.
2 is a hydrocarbon radical and R.
sup.
1 is arylene or or a cycloaliphatic radical, a monomeric silane having the formula: ##STR18## wherein R.
sup.
3 is a hydrocarbon radical, R is alkylene, each V is hydrogen, a hydrocarbon radical or a hydrolyzable group, Z is a hydrolyzable group and n is an integer having a value of 2 to 25 inclusive; and a metal carboxylate or organo titanate catalyst
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Adhesives and Rubbers 
