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US 5,475,124 AGranted
Radiation-curable silicone elastomers and pressure sensitive adhesives
AssigneeMinnesota Mining and Manufacturing Company
InventorsMieczyslaw H. Mazurek, Steven S. Kantner, Charles M. Leir, Audrey A. Sherman
Life of this patent
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Abstract
A composition which is curable to an elastomer comprising: A polymer or mixture of polymers of the formula ##STR1## A composition which is curable to a pressure sensitive adhesive comprising the above polymer and a sufficient amount of tackifier. The invention also relates to fluorosilane compounds useful in the preparation of silicone macromonomer, their preparation and the preparation of silicone macromonomer.
Claims8
A compound of the formula:
- ##STR26## wherein:
- X is a monovalent moiety having ethylenic unsaturation;
- Y is a divalent linking group;
- m is an integer of 0 to 1;
- D is a monovalent moiety selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;
- q is an integer of 0 to 1;
- R is a divalent hydrocarbon group;
- R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;
- s is an integer 1 to 3;
- and wherein the following is true:
- when q=0 and m=1, R comprises a C.sub.3 -C.sub.12 alkylene group and R.sup.2 comprises methyl;
- when q=0 and m=0, R comprises an alkylene group.
9 more elements
A method of preparing a compound which comprises the steps of:
- (a) combining a silane selected from the group consisting of halogen-substituted silanes, nitrogen-substituted silanes, and oxygen-substituted silanes with a suitable solvent in order to form a solution;
- (b) reacting said solution with at least about a molar equivalent of an acidic fluoride in order to form a solution of a compound of the formula ##STR32## wherein:
- X is a monovalent moiety having ethylenic unsaturation;
- Y is a divalent linking group;
- m is an integer of 0 to 1;
- D is a monovalent moiety selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;
- q is an integer of 0 to 1;
- R is a divalent hydrocarbon group;
- R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;
- and
- s is an integer 1 to 3.
8 more elements
A compound of the formula ##STR33## wherein:
- D is a monovalent moiety selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;
- R is a divalent hydrocarbon group;
- R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;
- R.sup.3 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl;
- R.sup.4 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl;
- R.sup.7 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, alkoxy, alkyl amino, hydroxyl, aryl, and substituted aryl;
- s is an integer of 1 to 3;
- and
- r is an integer of about 5 to about 1000.
6 more elements
A method of preparing the compound of the formula ##STR34## wherein:
- D is a monovalent moiety selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;
- R is a divalent hydrocarbon group;
- R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;
- R.sup.3 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl;
- R.sup.4 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl;
- R.sup.7 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, alkoxy, alkyl amino, hydroxyl, aryl, and substituted aryl;
- s is an integer of 1 to 3;
- and
- r is an integer of about 5 to about 1000 which comprises the step of reacting a fluorosilane terminating agent represented by the formula ##STR35## wherein:
- D is a monovalent moiety selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;
- R is a divalent hydrocarbon group;
- R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;
- and
- s is an integer of 1 to 3;
- with a solution of a living polymeric siloxanolate in a suitable non-hydroxylic solvent in order to form the compound.
12 more elements
Dependencies are inferred from the claim text.