Patent ID: 7473756
Filing Date: 2009-01-06
Classification: C08G,C09D

Abstract:
1. A transparent coating comprising aliphatic oligocarbonate poiyois having a number-average molecular weight (M n ) of 500 to 10,000 g/mol and which are prepared from a polyol component containing 1 to 99 mol % of a diol of formula (I) wherein n is an integer from 1 to 50; m is an integer from 1 to 20; R (X)m is a carbon-containing group having 1 to 20 carbon atoms and whose chain may also be interrupted by heteroatoms such as oxygen, sulphur or nitrogen; and at least one further aliphatic polyol; wherein the amounts of said diol of formula (I) and said at least one further aliphatic polyol total 100 mol % of said polyol component.