Polyisocyanurate polymers and process for the production of polyisocyanurate polymers

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United States of America Patent

PATENT NO 11390707
APP PUB NO 20180355091A1
SERIAL NO

16010709

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Abstract

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The present invention relates to novel polyisocyanurate plastics which are obtainable by catalytic trimerization of a polyisocyanate composition A) which contains oligomeric polyisocyanates and is low in monomeric diisocyanates. “Low in monomeric diisocyanates” means that the polyisocyanate composition A) has a content of monomeric diisocyanates of at most 20% by weight. The invention further relates to the use of these polyisocyanurate plastics for production of coatings, films, semi-finished products and mouldings, and to a process for producing polyisocyanurate plastics comprising the following steps: (a) providing a polyisocyanate composition A) which contains oligomeric polyisocyanates and is low in monomeric diisocyanates, “low in monomeric diisocyanates” meaning that the polyisocyanate composition A) has a content of monomeric diisocyanates of at most 20% by weight; (b) catalytically trimerizing the polyisocyanate composition A).

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Patent Owner(s)

Patent OwnerAddress
COVESTRO DEUTSCHLAND AGLEVERKUSEN GERMANY LEVERKUSEN NORTH RHINE-WESTPHALIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Achten, Dirk Leverkusen, DE 129 293
Hocke, Heiko Shanghai, CN 25 130
Laas, Hans-Josef Odenthal, DE 124 670
Mager, Dieter Leverkusen, DE 43 237
Matner, Mathias Neuss, DE 41 151

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