Non-hairing, moisture curable compositions
    3.
    发明授权
    Non-hairing, moisture curable compositions 失效
    不起泡,水分可固化组合物

    公开(公告)号:US5137984A

    公开(公告)日:1992-08-11

    申请号:US523754

    申请日:1990-05-15

    摘要: A mixture of hydroxy functional polymers which can be used to form isocyanate prepolymers which are non-hairing at application temperature are disclosed. Examples of suitable mixtures of hydroxy functional polymers that can be used to form the prepolymers are:(1) linear polyester blends, comprising a first and second polyester wherein each polyester is the reaction product of a polyol and a polyacid, whereina+b or=6a+b>4 or .ltoreq.6, c+d>or=10a+b>6 or .ltoreq.8, c+d>or=12herein a is the number of methylene moieties in the polyol used to form the first polyester,b is the number of methylene moieties in the polyacid used to form the first polyester,c is the number of methylene moieties in the polyol used to form the second polyester of the blend,d is the number of methylene moieties in the polyacid used to form the second polyester of the blend; and(2) a blend of at least one non-linear polyester and one linear polyester, wherein the non-linear polyester is selected from the group consisting of polyneopentyl adipate, polypropylene adipate and polycyclohexanedimethyl adipate, and the linear polyester is selected from the group consisting of polyethylene adipate, polybutylene succinate, and polyhexamethylene sebacate, provided that when the linear polyester is polyhexamethylene sebacate, the non-linear polyester is polyneopentyl adipate or polypropylene adipate; and(3) a blend of poly .epsilon.-caprolactone and at least one linear polyester selected from the group consisting of polyethylene adipate, polyethylene succinate and polybutylene succinate.

    Mixture of isocyanate-terminated polyurethane prepolymers having good
adhesion
    8.
    发明授权
    Mixture of isocyanate-terminated polyurethane prepolymers having good adhesion 失效
    具有良好粘附性的异氰酸酯封端的聚氨酯预聚物的混合物

    公开(公告)号:US5536805A

    公开(公告)日:1996-07-16

    申请号:US419004

    申请日:1995-04-07

    申请人: Lani S. Kangas

    发明人: Lani S. Kangas

    摘要: A blend of isocyanate-terminated polyurethane prepolymers comprising: (a) a first prepolymer which comprises the reaction product of an at least essentially semicrystalline hydroxy-functional material and a polyisocyanate; (b) a second prepolymer which comprises the reaction product of a poly(tetramethylene glycol) ether and a polyisocyanate; and (c) a third prepolymer which comprises the reaction product of an essentially amorphous hydroxy-functional material and a polyisocyanate. The blend may also include a fourth prepolymer which comprises the reaction product of a slightly branched hydroxy-functional material and a polyisocyanate.

    摘要翻译: 异氰酸酯封端的聚氨酯预聚物的混合物,其包含:(a)包含至少基本上半结晶的羟基官能材料与多异氰酸酯的反应产物的第一预聚物; (b)包含聚(四亚甲基二醇)醚和多异氰酸酯的反应产物的第二预聚物; 和(c)第三预聚物,其包含基本上无定形的羟基官能材料和多异氰酸酯的反应产物。 共混物还可以包括第四预聚物,其包含轻支化羟基官能材料和多异氰酸酯的反应产物。

    Tackified polydiorganosiloxane polyurea segmented copolymers and a process for making same
    10.
    发明授权
    Tackified polydiorganosiloxane polyurea segmented copolymers and a process for making same 失效
    增粘的聚二有机硅氧烷聚脲分段共聚物及其制备方法

    公开(公告)号:US06664359B1

    公开(公告)日:2003-12-16

    申请号:US08930771

    申请日:1997-10-02

    IPC分类号: C08L8310

    摘要: A tackified composition comprising (a) a polydiorgannosiloxane polyurea segmented copolymer comprising the reaction product of (i) at least one polyaminie, wherein the polyamine comprises at least one polydiorganosiloxane diamine, or a mixture of at least one polydiorganosiloxane diamine and at least one organic polyamine, and (ii) at least one polyisocyanate, wherein the mol ratio of isocyanate to amined is between 0.9:1 and 0.95:1 or between 1.05:1 and about 1.3:1, and (b) silicate resins. The tackified compositions are useful as pressure sensitive adhesives, particularly for foamed backing tapes, medical tapes and the like, hot melt adhesives, vibration dampers, anti-corrosive materials.

    摘要翻译: 一种增粘组合物,其包含(a)聚二氢甘油硅氧烷聚脲分段共聚物,其包含(i)至少一种多胺的反应产物,其中所述多胺包含至少一种聚二有机硅氧烷二胺,或至少一种聚二有机硅氧烷二胺和至少一种有机多胺 ,和(ii)至少一种多异氰酸酯,其中异氰酸酯与胺化物的摩尔比在0.9:1至0.95:1之间或1.05:1至约1.3:1之间,和(b)硅酸酯树脂。 增粘组合物可用作压敏粘合剂,特别是用于发泡背胶带,医用胶带等,热熔粘合剂,减震器,防腐蚀材料。