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US 8,801,890 B2Granted
Curable silicone compositions containing reactive non-siloxane-containing resins
AssigneeHenkel US IP LLC
InventorsChristopher Verosky, Michael Levandoski, Richard Corrao, Chiu-Sing Lin, Baharam Issari
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Abstract
The present invention relates to two-part moisture curing compositions useful for adhesive, sealing, potting and other applications. In particular, the present invention relates to two-part room temperature vulcanizing (RTV) compositions which include in one of the parts a moisture curing organic polymer which is substantially free or does not contain siloxane bonds in its backbone.
Claims22
A two-part moisture-curable composition comprising:
- (a) a first part comprising at least one hydroxyl-terminated polydiorganosiloxane and a water source;
- (b) a second part comprising at least one moisture cure catalyst, and at least one moisture curing silyl-functionalized material having the formula:
- where R1 is C1-4 alkyl, aryl, acyl, alkoxyalkyl;
- a is an integer 0-2;
- A is a polymer backbone comprising acrylate moieties;
- A is not interrupted by nitrogen atoms, and no nitrogen atoms are present between the terminal silicon atoms and A;
- and R2 is C1-20 hydrocarbon radical.
4 more elements
A two-part moisture-curing composition comprising:
- a first part comprising
- at least one hydroxyl-terminated polydiorganosiloxane and water;
- a second part comprising
- at least one moisture curing silyl-functionalized material comprising acrylate moieties, one or more silyl terminal groups, and a hydrocarbon diradical disposed between the silyl terminal group and the acrylate moiety,
- at least one alkoxy crosslinker, and
- at least one moisture cure catalyst.
3 more elements
Dependencies are inferred from the claim text.