Oxidatively-stabilized poly(vinylmethylether) for hot-melt adhesives
    5.
    发明授权
    Oxidatively-stabilized poly(vinylmethylether) for hot-melt adhesives 失效
    用于热熔粘合剂的氧化稳定化聚(乙烯基甲醚)

    公开(公告)号:US5322734A

    公开(公告)日:1994-06-21

    申请号:US34258

    申请日:1993-03-22

    申请人: Tsuei-Yun Lynch

    发明人: Tsuei-Yun Lynch

    IPC分类号: C09J153/00 C08K5/3437

    摘要: An oxidatively stabilized adhesion promoter composition for hot-melt adhesives is disclosed. The oxidatively stabilized adhesion promoter composition comprises a poly(vinylmethylether), said poly(vinylmethylether) having a number average molecular weight of from about 5,000 to about 1000,000, and an oxidative stabilizer antioxidant consisting of polymerized 1,2-dihydro-2,2,4-trimethylquinoline having a number average molecular weight of from about 350 to about 750. The said polymerized 1,2-dihydro-2,2,4-trimethylquinoline can be used with a secondary antioxidant comprising an organic compound of sulfur and trivalent phosphorus. The trivalent phosphorus compound can be a phosphite selected from the group consisting of tris-(2,4-di-tert-butylphenyl) phosphite, tris(mono-nonylphenyl) phosphite, bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite, distearyl pentaerythritol phosphite, and mixtures thereof. The oxidative stabilizer antioxidant is present in the poly(vinylmethylether) in an amount from about 0.01 weight percent to about 2.0 weight percent. The oxidatively stabilized adhesion promoter composition can contain up to about 1000 parts per million of hydroperoxides measured at room temperature and has a carbonyl index of less than about 2.9 as measured by infrared spectroscopy after exposure to a high temperature for a prolonged period.

    摘要翻译: 公开了一种用于热熔粘合剂的氧化稳定的粘合促进剂组合物。 氧化稳定的粘合促进剂组合物包含聚(乙烯基甲醚),数均分子量为约5,000至约1000,000的所述聚(乙烯基甲基醚)和由聚合的1,2-二氢-2, 所述聚合的1,2-二氢-2,2,4-三甲基喹啉可与包含硫和三价有机化合物的二级抗氧化剂一起使用 磷。 三价磷化合物可以是选自亚磷酸三(2,4-二叔丁基苯基)酯,亚磷酸三(单壬基苯基)酯,双(2,4-二叔丁基苯基)季戊四醇 二亚磷酸酯,二硬脂基季戊四醇亚磷酸酯及其混合物。 氧化稳定剂抗氧化剂以约0.01重量%至约2.0重量%的量存在于聚(乙烯基甲基醚)中。 氧化稳定的粘合促进剂组合物可以在室温下含有高达约1000ppm的氢过氧化物,并且在长时间暴露于高温后通过红外光谱测量的羰基指数小于约2.9。