C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/76 (2006.01) C08F 4/42 (2006.01) C08G 18/32 (2006.01) C08G 18/78 (2006.01)
Patent
CA 2439777
The present invention relates to a new high functionality MDI. In particular, this invention relates to polymeric allophanates based on diphenylmethane diisocyanate having an NCO group content of 12 to 30%, prepolymers thereof, and processes for the production of these compositions. The prepolymers are stable liquids having NCO group contents of about 10 to about 28%.
La présente invention a trait à un MDI hautement fonctionnalisé. De manière plus précise, cette invention a trait à des allophanates polymériques à base de diisocyanate de diphénylméthane dont la teneur en groupements NCO est de 12 à 30 %, aux prépolymères de ces allophanates et aux procédés de production de ces formulations. Les prépolymères sont des liquides stables dont la teneur en groupements NCO est d'environ 10 à environ 28 %.
Kemp Hersel T. II
Miller William E.
Slack William E.
Bayer Materialscience Llc
Bayer Polymers Llc
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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