Patent ID: 7914880
Filing Date: 2011-03-29
Classification: B32B,B63C,C08G,Y10T

Abstract:
1. A composite structure comprising the following layered structure: (i) from 2 to 20 mm of metal, (ii) from 10 to 100 mm of a polyisocyanate polyaddition product having a density of from 350 to 1050 kg/m (iii) from 2 to 20 mm of metal; wherein said (ii) polyisocyanate polyaddition product is disposed between said (i) and (iii) and in contact with at least one of said (i) and (iii); and wherein surfaces of at least one of said (i) and (iii), which are in contact with said (ii), are free from inorganic and/or organic substances other than said (ii).