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1. 发明申请

WO2007098442A2 CONTROLLED SHRINKAGE ULTRAVIOLET LIGHT RESISTANT MOLDING COMPOUND 审中-公开
标题翻译：控制收缩紫外线抗光性成型化合物
公开(公告)号：WO2007098442A2
公开(公告)日：2007-08-30
申请号：PCT/US2007/062422
申请日：2007-02-20
申请人： CONTINENTAL STRUCTURAL PLASTICS , GUHA, Probir, K. , SIWAJEK, Michael, J. , BEACH, Brian, A.
发明人： GUHA, Probir, K. , SIWAJEK, Michael, J. , BEACH, Brian, A.
IPC分类号： C08K5/34
CPC分类号： C08L67/06 , C08K5/34 , C08L33/12 , C08L67/02 , C08L2666/02
摘要： A molding composition formulation is provided that includes a thermoset cross-linkable polymeric resin and an ultraviolet light absorber. A shrinkage-reducing polymeric additive is present in the formulation from between 3 and 30 total weight percent, such that upon cure a linear shrinkage rate of within ±1.0% is obtained. Shrinkage-reducing polymeric additives include a condensation polyester of glycol and a polyacid or acid anhydride, polyvinyl acetate, polymethylmethacrylate, or polyether polyol. A vehicle body component formed through a sheet molding composition formulation is provided as recited above, and includes a fiberglass filler. A process for producing a vehicle body component exposed to ultraviolet light upon environmental exposure of a vehicle includes molding at an elevated temperature above 20 o C the vehicle component from the formulation as detailed above. The process is followed by trimming the molded vehicle component prior to assembly.
摘要翻译：提供了包含热固性可交联聚合物树脂和紫外光吸收剂的模塑组合物配制剂。减缩聚合物添加剂在配方中的含量为3至30重量％，使得在固化时获得在±1.0％以内的线性收缩率。减少收缩的聚合物添加剂包括乙二醇和多元酸或酸酐的缩合聚酯，聚乙酸乙烯酯，聚甲基丙烯酸甲酯或聚醚多元醇。如上所述提供了通过片材模塑组合物配方形成的车身组件，并且该车身组件包括玻璃纤维填料。在车辆暴露在环境中时暴露于紫外线的车体部件的制造方法包括在20℃以上的高温下将来自制剂的载体成分如上所述进行模制。该过程之后是在组装之前修剪模制的车辆部件。

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