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首页> 外国专利> COMPOSITION BASED ON SOLID ISOCYANATE BLOCKED WITH SPECIFIC COMPOUND, ITS PREPARATION METHOD, POWDER COATING CONTAINING THE COMPOSITION AS CROSSLINKING AGENT, PREPARATION METHOD OF POWDER-COATED SURFACE HAVING TEXTURED OR GLOSSY APPEARANCE, CONTROL METHOD OF FLUIDITY AND/OR LEVELING PROPERTY OF POWDER-COATED SURFACE, AND SUBSTRATE COATED WITH THE POWDER COATING

COMPOSITION BASED ON SOLID ISOCYANATE BLOCKED WITH SPECIFIC COMPOUND, ITS PREPARATION METHOD, POWDER COATING CONTAINING THE COMPOSITION AS CROSSLINKING AGENT, PREPARATION METHOD OF POWDER-COATED SURFACE HAVING TEXTURED OR GLOSSY APPEARANCE, CONTROL METHOD OF FLUIDITY AND/OR LEVELING PROPERTY OF POWDER-COATED SURFACE, AND SUBSTRATE COATED WITH THE POWDER COATING

机译：基于以特定化合物封端的固体异氰酸酯的组合物，其制备方法，以交联剂的形式包含该组合物的粉末涂料，粉末状或表面光泽的粉末状表面的制备方法，流动性和/或韧性的控制方法，并用粉末涂料涂底材

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PURPOSE: Provided are a composition which is in solid state during storage, can be pulverized, is easily crumbled, is stable against blocking when prepared into a powder coating and can be cured at a temperature less than 150 deg.C to a heat sensitive substrate material, and is used as a crosslinking agent, its preparation method, a powder coating containing the composition, a method for preparing a powder coated surface having a textured or glossy appearance, a method for controlling the fluidity and/or leveling property of a powder coated surface and a substrate coated with the powder coating. CONSTITUTION: The composition is based on a solid isocyanate which is blocked with at least one kind of compound corresponding to the formula 1 and has a glass transition temperature more than 30 deg.C, wherein R1 is H, an alkyl group, an aryl group, a halogen atom or an ally group; R2 is a CO-O-alkyl group, a CO-O-aryl group, a CO-O-alkoxyalkyl group, a CO-O-arylalkyl group, a CO-alkyl group, a CO-aryl group, a CO-alkoxyalkyl group, a CO-arylalkyl group, a cyanide group, Si(CH3)3 or Si(C2H5)3; R3 is a CO-O-alkyl group, a CO-O-aryl group, a CO-O-alkoxyalkyl group, a CO-O-arylalkyl group, a CO-alkyl group, a CO-aryl group, a CO-alkoxyalkyl group, a CO-arylalkyl group, a cyanide group, Si(CH3)3 or Si(C2H5)3 which is identical with or different from R2; and R2 and R3 represent a cyclic ketone and/or ester group together.
机译：用途：提供的组合物在储存过程中处于固态，可以被粉碎，易于粉碎，在制成粉末涂料时稳定，不粘连并且可以在低于150℃的温度下固化成热敏性基材材料，并用作交联剂，其制备方法，包含该组合物的粉末涂料，制备具有纹理或光泽外观的粉末涂料表面的方法，控制粉末的流动性和/或流平性的方法涂层表面和涂有粉末涂料的基材。组成：该组合物基于固体异氰酸酯，该固体异氰酸酯被至少一种对应于式1的化合物封端并且玻璃化转变温度大于30℃，其中R 1为H，烷基，芳基，卤原子或烯丙基; R 2为CO-O-烷基，CO-O-芳基，CO-O-烷氧基烷基，CO-O-芳基烷基，CO-烷基，CO-芳基，CO-烷氧基烷基基团，CO-芳基烷基，氰基，Si（CH 3）3或Si（C 2 H 5）3; R 3为CO-O-烷基，CO-O-芳基，CO-O-烷氧基烷基，CO-O-芳基烷基，CO-烷基，CO-芳基，CO-烷氧基烷基与R2相同或不同的基团，CO-芳基烷基，氰基，Si（CH3）3或Si（C2H5）3; R 2和R 3一起表示环状酮和/或酯基。

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