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公开(公告)号:US20050256278A1
公开(公告)日:2005-11-17
申请号:US10846354
申请日:2004-05-14
IPC分类号: C08F283/10 , C08F290/06 , C08F290/14 , C08G59/16
CPC分类号: C08F283/10 , C08F290/064 , C08F290/144
摘要: Low VOC vinyl ester resins exhibit improved cure in an oxygen containing environment. The vinyl ester resins comprise the reaction product of an epoxy resin having at least two epoxy groups per molecule; a polybasic anhydride; unsaturated monobasic acids comprising up to about 10 molar percent dicyclopentadienyl monomaleate based on the total unsaturated monobasic acids, wherein the vinyl ester resin has a viscosity of less than about 1200 cp measured at a shear of 500 s−1 in styrene at 70% non-volatile matter. Barrier coats and gel coats comprising such vinyl ester resins have acceptable tackiness and physical characteristics. A process to make such vinyl ester resins is also described.
摘要翻译: 低VOC乙烯基酯树脂在含氧环境中表现出改善的固化。 乙烯基酯树脂包括每分子具有至少两个环氧基团的环氧树脂的反应产物; 多元酸酐; 包含至多约10摩尔%的基于全部不饱和一元酸的二环戊二烯基单马来酸的不饱和一元酸,其中乙烯基酯树脂在500秒-1的剪切下测量的粘度小于约1200cp。 在70%的非挥发性物质的苯乙烯中。 包含这种乙烯基酯树脂的阻隔涂层和凝胶涂层具有可接受的粘性和物理特性。 还描述了制备这种乙烯基酯树脂的方法。
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公开(公告)号:US20050255770A1
公开(公告)日:2005-11-17
申请号:US11116956
申请日:2005-04-28
申请人: L. Crump
发明人: L. Crump
CPC分类号: B32B27/12 , B29C37/0025 , B29C70/086 , B29C70/44 , B29C70/443 , B29C70/542 , B32B27/302 , B32B37/1018 , B32B2038/0076 , B32B2255/26 , B32B2262/101 , Y10T428/24942 , Y10T428/31634 , Y10T428/31909 , Y10T428/31928 , Y10T442/2369
摘要: A coating may be incorporated in a molded composite article made via a process in which neither the coating nor the resin contact the mold surface. A multilayer sandwich structure is formed having two outside layers of flexible membranes, typically made of silicon. An interior dissolvable film is disposed between the two outer flexible membranes. A layer of fiber reinforcement is disposed between the dissolvable film and one of the flexible membranes. A coating is distributed between a flexible membrane and the dissolvable film, opposite the side having the reinforcement, wherein the film is only slowly soluble, or insoluble, in the coating. The coating is allowed to at least partially cure and a resin is infused through the reinforcement wherein the dissolvable film rapidly dissolves in the resin. The sandwich structure is formed around a mold and the resin is allowed to cure.
摘要翻译: 可以通过其中涂层和树脂都不与模具表面接触的方法制成的模制复合材料制成涂层。 形成具有通常由硅制成的两层柔性膜的多层夹心结构。 内部可溶解膜设置在两个外部柔性膜之间。 纤维增强层设置在可溶解膜和柔性膜之一之间。 涂层分布在柔性膜和可溶解膜之间,与具有增强材料的侧面相对,其中膜仅缓慢溶解或不溶于涂层。 允许涂层至少部分固化,并且通过增强剂注入树脂,其中可溶性膜快速溶解在树脂中。 在模具周围形成夹层结构,并使树脂固化。
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