Patent ID: 8569440
Filing Date: 2013-10-29
Classification: C08G

Abstract:
1. A polyurethane composition, comprising a mixture of: (a) a reaction product of (a1) a polyisocyanate comprising at least two NCO groups and (a2) a uretdione-group-containing polyisocyanate with (a3) an oligomeric or (a4) polymeric polyol, optionally (a5) a low molecular mass substance having at least one OH group, and optionally (a6) a blocking agent, wherein the polyisocyanate comprises isophorone diisocyanate and the uretdione-group-containing polyisocyanate comprises dimerized isophorone diisocyanate; (b) a catalyst; (c) an epoxide that is reactive toward an acid group; (d) optionally, an acid in monomeric (d1) or polymeric form (d2); and (e) optionally, at least one of an auxiliary (e1) and an additive (e2), wherein the catalyst (b) comprises a C wherein the catalyst (b1) is present in an amount of from 0.001 to 3% by weight, based on a total weight of the composition, wherein the epoxide is present in an amount of from 0.1 to 10% by weight, based on the total weight of the composition, wherein the acid (d) in monomeric (d1) or polymeric (d2) form is optionally present in an amount of from 0.1 to 10% by weight, based on the total weight of the composition, and wherein the composition forms a thermoplastic polymeric material when reacted either alone or with other polymers.