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    • 54. 发明公开
    • Low temperature cure powder coating compositions
    • 北冰箱温湿度传感器Pulverbeschichtungszusammensetzungen
    • EP2272927A1
    • 2011-01-12
    • EP09164810.5
    • 2009-07-07
    • Cytec Surface Specialties, S.A.
    • Moens, Luc
    • C09D167/02
    • C08L67/02C08L33/068C09D167/02Y10T428/31511Y10T428/31529Y10T428/31681Y10T428/31786C08L2666/04C08L2666/18
    • The present invention relates to a powder coating composition for low temperature cure which comprises a mixture of a carboxylic acid group containing first polyester; at least one of a second polyester having a glass transition temperature ≤ 45°C and/or a crystalline polycarboxylic acid; a glycidyl group containing acrylic copolymer; a further compound and/ or resin having functional groups reactable with the carboxylic acid groups; and a thermosetting curing catalyst.
      These thermosetting powder coatings are designed for coating heat-sensitive substrates such as wood, fibre board and other materials which can not withstand the excessive heat/time conditions necessary to cure traditional coatings. The powder coatings of the invention, when cured at temperatures below 150°C, produce a finish which exhibits a high gloss, smooth surface along with an outstanding hardness and weatherability.
    • 本发明涉及用于低温固化的粉末涂料组合物,其包含含羧酸基团的第一聚酯的混合物; 玻璃化转变温度为45℃的第二聚酯和/或结晶多元羧酸中的至少一种; 含有缩水甘油基的丙烯酸共聚物; 具有可与羧酸基团反应的官能团的另外的化合物和/或树脂; 和热固性固化催化剂。 这些热固性粉末涂料被设计用于涂覆热敏基材如木材,纤维板和其他不能承受固化传统涂料所需的过热/时间条件的材料。 当在低于150℃的温度下固化时,本发明的粉末涂料产生具有高光泽度,光滑表面以及出色的硬度和耐候性的表面。
    • 56. 发明公开
    • POWDER COATING COMPOSITION
    • 粉末涂料组合物
    • EP2132270A1
    • 2009-12-16
    • EP08742586.4
    • 2008-04-04
    • DuPont Powder Coatings Ibérica, S.L.
    • RODRIGO, AntoniaRODRIGUEZ-SANTAMARTA, CarlosMARELLI, Ernesto
    • C09D5/03C09D133/06C09D167/00
    • C09D5/032C08L33/068C08L67/00C08L67/06C09D133/068C09D167/00C08L2666/04C08L2666/18
    • The present invention provides a powder coating composition comprising an intimate mixture comprising (A) 60 to 99 wt% of a mixture comprising at least one polyester resin and at least one (meth) acrylate resin, (B) 0 to 30 wt% of at least one cross-linking agent, (C) 0.1 to 10 wt% of at least one pigment, whereby component (A) and component (C) are selected in such a way that the powder coating composition provides a low gloss of the cured coating in the range of 1 to 20 gloss units at 60° angle according to DIN 67530 (ISO2813) and at the same time provides a surface structure of the cured coating characterized by a value of Integral 1 in the range of higher than 8.00E+00 measured by the mechanical profilometry Fourier analysis, and whereby the wt% are based on the total weight of the powder coating composition. The powder coating composition according to the invention provides the desired special metallic effect of the coated surface which meets the metallic effect resulted with anodized aluminium.
    • 本发明提供一种粉末涂料组合物,其包含紧密混合物,所述紧密混合物包含(A)60至99重量%的包含至少一种聚酯树脂和至少一种(甲基)丙烯酸酯树脂的混合物,(B)0至30重量% (C)0.1-10重量%的至少一种颜料,由此选择组分(A)和组分(C),使得粉末涂料组合物提供固化涂层的低光泽度 在根据DIN 67530(ISO2813)的60°角处在1至20光泽度单位的范围内,同时提供固化涂层的表面结构,其特征在于积分1的值在高于8.00E + 00 通过机械轮廓测量傅立叶分析测量,并且其中wt%基于粉末涂料组合物的总重量。 根据本发明的粉末涂料组合物提供了所需的涂覆表面的特殊金属效果,其满足由阳极氧化铝产生的金属效果。