copolymers

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United States of America Patent

PATENT NO 9469715
APP PUB NO 20150337070A1
SERIAL NO

14654665

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Abstract

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The invention relates to a method for producing non-alternating formaldehyde/CO2 copolymers, said method comprising the step of reacting formaldehyde or a compound that releases formaldehyde with carbon dioxide in the presence of a catalyst system. Said method is characterized in that the catalyst system comprises a Lewis acid component and a basic component, the Lewis acid component being at least temporarily coordinatively unsaturated under reaction conditions and the basic component having a pKb value of >=0.

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Patent Owner(s)

Patent OwnerAddress
COVESTRO DEUTSCHLAND AGKAISER-WILHELM-ALLEE 60 LEVERKUSEN 51373

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gürtler, Christoph Köln, DE 68 288
Krautschick, Mario Hüchelhoven, DE 2 6
Leitner, Walter Aachen, DE 78 165
Müller, Thomas Ernst Aachen, DE 37 133
Vogt, Henning Aachen, DE 18 75

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