Coatings - by curing applied powders formed by polymn of - olefins and epoxy resins - to give powders useful as coatings

    公开(公告)号:DE2207910A1

    公开(公告)日:1973-08-23

    申请号:DE2207910

    申请日:1972-02-19

    Applicant: BASF AG

    Abstract: Process for prepg. coating by heating at 130-200 degrees C an (e.g. electrostatically) applied powder coating comprising a copolymer formed from (in wt.%) (1) 15-80 meth(acrylic)esters of 1-8C alkanols; (2) 10-80 alkenylbenzenes of 8-10C (3) 5-40 ethers of unsatd carboxylic N-methylolamides the acid residue contg 3-5C and the ether gp 1-8C (4) 0-20 glycol mono-acrylate or methacrylate (5) 0-20 3-5C enoic acid (6) 0-20 other monoolefins. (1)-(6) are bulk, suspension or emulsion copolymerised using an initiator a water-dilutable protective colloid and 1-25% epoxide resin and opt. other additives. Powder produced requires milder curing conditions, is insensitive to impurities, gives high gloss finish, and has high resistance to solvents and abrasion.

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