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COATING AGENTS FOR THE PRODUCTION OF TRANSPARENT FINISHING COATS AND THE USE OF SUCH COATING AGENTS IN THE PRODUCTION OF MULTI-COAT COATINGS
COATING AGENTS FOR THE PRODUCTION OF TRANSPARENT FINISHING COATS AND THE USE OF SUCH COATING AGENTS IN THE PRODUCTION OF MULTI-COAT COATINGS
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机译:用于生产透明精饰涂料的涂层剂以及在多涂层涂层的生产中使用这种涂层剂
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PCT No. PCT/EP95/01095 Sec. 371 Date Jan. 22, 1996 Sec. 102(e) Date Jan. 22, 1996 PCT Filed Mar. 23, 1995 PCT Pub. No. WO95/26375 PCT Pub. Date Oct. 5, 1995The present invention is directed to a coating composition for use as topcoat lacquer on a multi-layer lacquer coating for substrates such as automobile bodies and parts. The coating composition is based upon a combination of hydroxyl-functional methacrylic copolymers, carboxy-functional blocked urethane prepolymers, crosslinking agents and optional hydroxyl-functional polyesters. The carboxy-functional polyurethane prepolymer is formed from a combination of organic diols, polycarboxylic acids, polyols, hydroxyl-carboxylic acids, aliphatic or aryl polyisocyanates and monofunctional isocyanate blocking agents. The lacquer coating according to the invention has a high sulfuric acid resistance and has a high solids content.
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