Moisture curable adhesive compositions
AssigneeKaneka Americas Holding, Inc.
InventorsWenwen Li, Ken Sutherland
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Abstract
A moisture curable composition, and a method of application and a substrate including the same are disclosed herein. In some embodiments, a curable composition includes a component (A) comprising an organic polymer containing reactive silicon groups represented by the general formula (1), a component (B) comprising an organic polymer having a viscosity lower than 10,000 cP at 23° C. containing reactive silicon groups represented by the general formula (2), and a component (C) comprising a polyolefin polymer. The moisture curable composition has universal adhesiveness to an adhesion-resistant substrate, such as PVC, EPDM, and TPO. The substrates can be smooth-back or fleece-back substrates.
Claims20
A curable composition, comprising:
- a polymer blend consisting of:
- a component (A) having an organic polymer containing reactive silicon groups represented by the following general formula (1):
- —Si(R13-a)Xa (1)
- wherein R1 represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms,
- wherein X represents a hydrolyzable group, wherein each X is the same or different when two or more X are present,
- a is an integer from 1 to 3,
- when a is 1, each R1 may be the same or different, and
- when a is 2 or 3, each X may be the same or different;
- a component (B) having an organic polymer containing reactive silicon groups, wherein the organic polymer having a viscosity lower than 10,000 cP at 23° C., and wherein the reactive silicon groups represented by the following general formula (2):
- —Si(R23-b)Xb (2)
- wherein R2 represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms,
- wherein X represents a hydroxyl group or a hydrolyzable group, wherein each X is the same or different when two or more X are present
- b is an integer from 1 to 3,
- when b is 1, each R2 may be the same or different, and
- when b is 2 or 3, each X may be the same or different;
- and
- a component (C) having a polyolefin polymer.
A curable composition, consisting of:
- a component (A) having an organic polymer containing reactive silicon groups represented by the following general formula (1):
- —Si(R13-a)Xa (1)
- wherein R1 represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms,
- wherein X represents a hydrolyzable group, wherein each X is the same or different when two or more X are present,
- a is an integer from 1 to 3,
- when a is 1, each R1 may be the same or different, and
- when a is 2 or 3, each X may be the same or different;
- a component (B) having an organic polymer containing reactive silicon groups, wherein the organic polymer having a viscosity lower than 10,000 cP at 23° C., and wherein the reactive silicon groups represented by the following general formula (2):
- —Si(R23-b)Xb (2)
- wherein R2 represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms,
- wherein X represents a hydroxyl group or a hydrolyzable group, wherein each X is the same or different when two or more X are present
- b is an integer from 1 to 3,
- when b is 1, each R2 may be the same or different, and
- when b is 2 or 3, each X may be the same or different;
- a component (C) having a polyolefin polymer;
- and
- an additive selected from the group consisting of a filler, a dehydration agent, a plasticizer, an anti-sagging agent, a stabilizer, a curing catalyst, and combinations thereof.
Dependencies are inferred from the claim text.