Coating media and their use for the production of...

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

IPC codes

C09D 175/14 (2006.01) C08G 18/10 (2006.01) C09D 133/00 (2006.01) C09D 133/04 (2006.01) C09D 133/14 (2006.01) C09D 167/06 (2006.01) C09D 175/06 (2006.01) C09D 175/16 (2006.01) C09D 201/00 (2006.01)

Type

Patent

Patent number

CA 2102169

Description

Herberts Gesellschaft mit beschr?nkter Haftung Abstract A vehicle composition which results in acid-resisting coatings is described. The vehicle composition contains: A) 10 - 90 weight % of one or more compounds acting as crosslinking agents with an average of at least two groups capable of alcoholysis, B) 10 - 90 weight % of one or more (meth)acrylic copolymers, polyester- and/or polyurethane resins with at least one .alpha.,.beta.-unsaturated group bonded via the carbonyl carbon atom of -?-, -?-O- and/or -?-?-, with a C=C equivalent weight of 85 - 1800, a number average molecular weight (Mn) of 170 - 10,000 g/mole, and an OH number of up to 350 mg KOH/g, wherein the weight percentages of components A and B are each based on the solid and add up to 100 weight %, and C) 0.1 - 10 weight % of one or more thermally and/or photochemically activatable initiators, D1) 0 - 20 weight % of one or more melamine resin crosslinking agents, D2) 0 - 40 weight % of one or more blocked polyisocyanates, E) 0 - 40 weight % of one or more (meth)acrylol- functionalised reactive thinners which are free from OH groups, F) 0 - 30 weight % of one or more diols, triols, polyols and/or hydroxyfunctional polyethers, polyesters and/or (meth)acrylic copolymers, and optionally solvents, the usual lacquer additives, optionally water, optionally pigments and optionally extenders, wherein the weight percentages of components C), D1), D2), E) and F) are each based on the solid and on the sum of the weight percentages of components A) and B).

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