Curable Silicone Composition, Cured Material, Manufactured Articles, Methods And Uses
AssigneeDow Corning Corporation
InventorsGary Wayne Murray, Fernando Vazquez-Carrillo
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Abstract
A curable siloxane composition, cured material prepared therefrom, manufactured article prepared therewith, methods of making, and uses thereof, are disclosed. The composition comprises a mixture of ingredients (A) and (B): (A) a curable amount of a reactive group-functional siloxane, which has on average per molecule at least one curing-reactive group; and (B) an effective amount of an isocyanate or an isocyanate donor agent. The isocyanate has an average of at least one —N═C═O moiety per molecule thereof. The isocyanate donor agent produces an isocyanate when the isocyanate donor agent is exposed to a triggering condition.
Claims20
A curable siloxane composition comprising a mixture of ingredients (A) and (B):
- (A) a curable amount of a reactive group-functional siloxane, which has on average per molecule at least one curing-reactive group (CRG);
- and
- (B) an effective amount of an isocyanate or an isocyanate donor agent;
- wherein the isocyanate has an average of at least one —N═C═O moiety per molecule thereof;
- and
- wherein the isocyanate donor agent produces an isocyanate when the isocyanate donor agent is exposed to a triggering condition.
A method of making a curable siloxane composition comprising a mixture of ingredients (A) and (B):
- (A) a curable amount of a reactive group-functional siloxane, which has on average per molecule at least one curing-reactive group (CRG);
- and
- (B) an effective amount of an isocyanate or an isocyanate donor agent;
- wherein the isocyanate has an average of at least one —N═C═O moiety per molecule thereof;
- and
- wherein the isocyanate donor agent produces an isocyanate when the isocyanate donor agent is exposed to a triggering condition;
- the method comprising:
- combining ingredients (A) and (B) together under conditions effective to make the composition.
Dependencies are inferred from the claim text.