Patent ID: 9403930
Filing Date: 2016-08-02
CPC Classification: C08G

Claim Text:
1. A polyisocyanate polyaddition product with good mechanical properties obtained by reacting a) a polyisocyanate and b) a NCO-reactive compound selected from the group consisting of b1) long-chain polyester polyols with an OH number of from 27 to 112 mg KOH/g and a functionality of from 1.9 to 2.3, b2) short-chain hydroxyl compounds with an OH number of from 300 to 1810 mg KOH/g and a functionality of from 1.9 to 2.3, and mixtures thereof, in the presence of components consisting of c) a latent catalyst d) optionally a tin catalyst, e) optionally a filler and/or fiber material, f) optionally an assistant and/or an additive, g) optionally a blowing agent, and h) at least one water scavenger, wherein the latent catalyst c) consists of a monocarboxylic acid-blocked amidine in an amount of from 20 to 400 ppm, based on component b1), wherein the molar ratio of amidine to carboxylic acid is between 1:3 and 1:0.5, wherein the casting time of the polyisocyanate polyaddition product is from 2 to 10 minutes and the hardness is from 60 to 96 Shore A.