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    • 80. 发明申请
    • PUMPABLE DESICCATED MASTIC
    • 可抽吸的主体
    • WO98044063A1
    • 1998-10-08
    • PCT/US1998/006183
    • 1998-03-31
    • C08L23/02C08L23/08C08L23/10C08L23/16C08L23/20C08L23/22C08L53/00C08L53/02C09J123/02C09J123/10C09J123/16C09J123/20C09J123/22C09K3/10E06B3/677C09J9/00
    • C09J123/16C08L23/02C08L23/0815C08L23/10C08L23/16C08L23/20C08L23/22C08L53/00C08L53/02C08L2314/06C08L2666/04C09J123/02C09J123/10C09J123/20C09J123/22C09K3/10C09K2200/061C09K2200/0617C09K2200/062C09K2200/0622C09K2200/0642C09K2200/0687E06B3/677Y10T29/49906Y10T29/49993
    • A pumpable, thermoplastic desiccated mastic capable of desiccating a sealed insulating glass unit. The disclosed compositions comprise: A) a resin component consisting essentially of: i) 4-75 % by weight of the resin component of a film former, the film former including a member selected from the group consisting of: a) a homogeneous substantially linear ethylene/ alpha -olefin interpolymer; b) a linear, Y block or star block copolymer rubber; or c) mixtures of a and b; alone, or in combination with one or more polymers selected from the group consisting of: d) a polyisobutylene polymer having a weight average molecular weight of about 35,000 or more; and e) a butyl rubber having a weight average molecular weight of up to about 500,000, said butyl rubber, if present, representing less than 50 % of the film former component; ii) 25-96 % by weight of the resin component of an alkylene polymer component consisting of a member selected from the group consisting of: a) a non-crystalline homopolymer, copolymer, terpolymer or graft copolymer comprising a monomeric unit of propylene; b) a homogeneous substantially linear ethylene/ alpha -olefin interpolymer; and c) mixtures thereof; iii) 0-20 % by weight of the resin component of a low volatile UV stable tackifier compatible with the film former and alkylene components; and B) a desiccant/adsorbent component comprising: i) at least 20 % by weight of the composition of a desiccant or moisture and volatile organic chemical adsorbing material; and ii) 0-10 % by weight of the composition of an adsorbent of volatile organic compounds, said desiccant/adsorbent component being present in an amount less than the level which will cause the composition when tested as set forth in ASTM D-1238, Procedure B using a 1100 gram load and an 8 gram sample at 190 DEG C to provide a melt flow time for a piston travel of 2.54 cm (1 inch) of more than 60 seconds.
    • 一种可泵送的热塑性干燥乳胶,能够干燥密封的绝缘玻璃单元。 所公开的组合物包括:A)树脂组分,其主要由以下组成:i)4-75重量%的成膜剂树脂组分,成膜剂包括选自以下的成员:a)均匀的基本上线性 乙烯/α-烯烃互聚物; b)线性,Y嵌段或星形嵌段共聚物橡胶; 或c)a和b的混合物; 单独或与一种或多种选自以下的聚合物组合:d)重均分子量为约35,000或更高的聚异丁烯聚合物; 和e)重均分子量高达约500,000的丁基橡胶,所述丁基橡胶(如果存在)低于成膜剂组分的50%; ii)25-96重量%的亚烷基聚合物组分的树脂组分,其由选自以下的成员组成:a)包含丙烯单体单元的非结晶均聚物,共聚物,三元共聚物或接枝共聚物; b)均匀的基本上线性的乙烯/α-烯烃互聚物; 和c)它们的混合物; iii)与成膜剂和亚烷基组分相容的低挥发性UV稳定增粘剂的树脂组分为0-20重量% 和B)干燥剂/吸附剂组分,其包含:i)所述组合物的至少20重量%的干燥剂或水分和挥发性有机化学吸附材料; 和ii)组合物的0-10重量%的挥发性有机化合物的吸附剂,所述干燥剂/吸附剂组分的存在量小于在ASTM D-1238中所述测试时将导致组合物的水平, 方法B使用1100克负荷和8克样品在190℃下为2.5秒(1英寸)超过60秒的活塞行程提供熔体流动时间。