Two-component polyurethane compositions, in particular suitable for use as viscoplastic structural adhesives

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United States of America Patent

PATENT NO 9809732
APP PUB NO 20150247073A1
SERIAL NO

14428190

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Abstract

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The invention concerns a two-component polyurethane composition including a polyol component K1 and a polyisocyanate component K2, the polyol component K1 including castor oil A1 and 1,2,3-propane triol A2, and the polyisocyanate component K2 including at least one aromatic polyisocyanate B1, the ratio in weight percent of (A1/A2) being between 4 and 50 and the ratio of all NCO groups of the aromatic polyisocyanates B1 to all the OH groups totaling (A1+A2)=1.15:1-85:1, and the total of all the OH groups of (A1+A2) being >93% of the total of all the OH groups of the two-component polyurethane composition, characterized by controllable hydrolytic degradability.

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Patent Owner(s)

Patent OwnerAddress
SIKA TECHNOLOGY AGBAAR

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kelch, Steffen Oberengstringen, CH 34 162

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