Patent ID: 8067508
Filing Date: 2011-11-29
Classification: C08G,C08L

Abstract:
1. A curable composition comprising (i) at least one polymer A having an organic basic structure Y and at least one reactive silyl group; and (ii) at least one polymer B having an organic basic structure Y and at least one reactive silyl group; wherein the number of reactive silyl groups in (i) is greater than or equal to the number of silyl groups in (ii) and the reactive silyl groups can crosslink to form siloxane bonds and the organic basic structure (Y) of at least one of polymer A or polymer B has a polydispersity PD (M w /M n ) of less than 4.8; wherein polymer A is a compound of general formula (I) in which X 1 , X 2 , X 3 , X 1 ′, X 2 ′, X 3 ′ independently of one another denote a halogen atom, an amino group, a mercapto group or an alkenyloxy group, an alkyl residue with 1 to 40 carbon atoms or an OR′ residue, wherein R′ is an alkyl residue with 1 to 40 carbon atoms or an acyl residue with 1 to 40 carbon atoms; T and T′ independently of one another are a linear or branched, substituted or unsubstituted alkylene residues with 1 to 20 carbon atoms; Z and Z′ independently of one another are a carbamate, carboxy, carbonate or sulfonate group or an oxygen atom; [Y] is the organic basic structure; and wherein the organic basic structure (Y) of at least one of polymer A or polymer B has one or more silyl groups not capable of forming siloxane bonds.