C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 251/34 (2006.01) C07C 275/58 (2006.01) C08G 18/50 (2006.01) C08G 18/78 (2006.01) C08G 18/80 (2006.01) C09D 175/00 (2006.01)
Patent
CA 2163590
The present invention is directed to a polyisocyanate mixture i) having an NCO content of 5 to 35% by weight and prepared from an organic diisocyanate, ii) containing less than 5% by weight of isocyanurate groups (calculated as N3,C3,O3, MW 126), iii) containing allophanate groups in an amount such that there are more equivalents of allophanate groups than urethane groups and iv) containing fluorine (calculated as F, AW 19) in an amount of 0.001 to 50% by weight, based on solids., wherein fluorine is incorporated with compounds containing two or more carbon atoms, one or more hydroxyl groups and one or more fluorine atoms. The present invention is also directed to a process for the production of this polyisocyanate mixture and to its use, optionally in blocked form, as an isocyanate component in one- or two-component coating compositions.
Slack William E.
Squiller Edward P.
Yeske Philip E.
Corporation Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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