Water-thinnable coating compositions

Details Water-thinnable coating compositions Water-thinnable coating compositions

C - Chemistry, Metallurgy

09

D

C09D 163/00 (2006.01) C08F 283/10 (2006.01) C09D 5/44 (2006.01) C09D 201/02 (2006.01) C25D 13/06 (2006.01)

Patent

CA 2088654

O.Z. 0062/02116 Abstract of the Disclosure: Water-thinnable coating compositions useful in electrocoating comprise A. a mixture of A1. 50-95 % by weight of one or more oligomeric or polymeric polyaddition or polycondensation com- pounds which have on average a molecular weight of from 200 to 20,000 and contain per molecule at least two hydroxyl groups and at least two primary and/or secondary amino groups, and A2. 5-50 % by weight of a crosslinker that is reactive toward component A1, and B. a mixture of B1. 90-99.9 % by weight of one or more radical- polymerizable compounds which have an average molecular weight of from 100 to 10,000 and contain per molecule a least two olefinic double bonds, and B2. 0.1-10 % by weight of a free radical initiator having a decomposition temperature within the range 50-150°C, the ratio of mixture A to mixture B being from 10:1 to 1:10 and mixture A being substantially chemically inert toward mixture B.

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