Mercaptan-containing polyphenols
    3.
    发明授权
    Mercaptan-containing polyphenols 失效
    含硫醇的多酚

    公开(公告)号:US4721814A

    公开(公告)日:1988-01-26

    申请号:US3962

    申请日:1987-01-16

    摘要: Compounds of formula I or II ##STR1## in which formulae R.sup.1 and R.sup.2 are each independently of the other hydrogen, alkyl, alkenylmethyl, cyclohexyl, phenyl, benzyl or tolyl, or are a --CH.sub.2 CHR.sup.3 --CH.sub.2 --S--H group, R.sup.3 and R.sup.4 are each independently of the other hydrogen or methyl, X is alkylene, --S--, --SO--, --SO.sub.2 -- or substituted alkylene, R.sup.5 and R.sup.6 are each independently of the other hydrogen or alkyl, R.sup.8 is hydrogen, alkyl, alkenylmethyl or phenyl, and wherein n is an integer from 1 to 10, can be used as hardeners for epoxy resins.The compositions containing epoxy resins and these hardeners are particularly suitable for use as adhesive formulations. The cured products have good moisture resistance.

    摘要翻译: 式Ⅰ或Ⅱ的化合物其中R 1和R 2各自独立地为氢,烷基,链烯基甲基,环己基,苯基,苄基或(C 1 -C 6) 或者是-CH 2 CHR 3 -CH 2 -SH基团,R 3和R 4各自独立地为氢或甲基,X为亚烷基,-S - , - SO - , - SO 2 - 或取代的亚烷基,R 5和R 6各自为 独立于其它氢或烷基,R8是氢,烷基,烯基甲基或苯基,其中n是1-10的整数,可以用作环氧树脂的硬化剂。 含有环氧树脂和这些硬化剂的组合物特别适用于粘合剂配方。 固化产品具有良好的防潮性。

    Urethane base pressure sensitive adhesive
    5.
    发明授权
    Urethane base pressure sensitive adhesive 失效
    URETHANE基压敏感粘合剂

    公开(公告)号:US3743617A

    公开(公告)日:1973-07-03

    申请号:US3743617D

    申请日:1971-05-17

    申请人: KEST D

    发明人: KEST D

    摘要: A PRESSURE SENSITIVE ADHESIVE PRODUCT IS PRODUCED BY CASTING ON A SUBSTRATE WEB, SUCH AS PAPER, PLASTIC FILM, OR METAL FOIL, A LAYER OF AN ADMIXTURE CONSISTING ESSENTIALLY OF: (A) A DIENE POLYMER OR COPOLYMER HAVING AT LEAST 1.6 TERMINAL ACTIVE-HYDROGEN GROUPS AND AN EQUIVALENT WEIGHT OF 500 OR MORE, (B) AN ORGANIC POLYISOCYANATE AND 3 (C) AT LEAST 75 PARTS PER 100 PARTS OF THE DIENE POLYMER AND THE ORGANIC POLYISOCYANATE OF A TACKIFYING RESIN OR MIXTURE OF TACKIFYING RESINS HAVING A BALL AND RING SOFTENING POINT OF 60* TO 140*C. THAT HAS BEEN PREDISSOLVED IN THE DIENE POLYMER, AND COREACTING THE DIENE POLYMER AND THE ORGANIC POLYISOCYANATE IN SITU ON THE SUBSTRATE WEB TO GIVE A PRESSURE SENSITIVE ADHESIVE PRODUCT. THE DIENE POLYMER AND THE ORGANIC POLYISOCYANATE, PLUS ANY OTHER INGREDIENTS COREACTIVE WITH THE DIENE POLYMER AND THE ORGANIC POLYISOCYANATE THAT ARE USED, ARE CHOSEN SO THAT THE PRESSURE SENSITIVE ADHESIVE POLYMER FORMED ON THE SUBSTRATE WEB HAS THE CHARACTER OF AN ELASTOMER.

    摘要翻译: 压敏粘合剂产品通过浇铸在基材纤维网上,例如纸,塑料膜或金属箔,基本上由以下组成的混合物层; A.具有至少1.6个末端活性氢基团和当量重量为500或更多的二烯聚合物或共聚物,B.有机聚异氰酸酯和C.每100份二烯聚合物和至少75份二烯聚合物的有机多异氰酸酯 增粘树脂或具有预先溶解于二烯聚合物中的球环软化点为60〜140℃的增粘树脂的混合物,以及将二烯聚合物和有机聚异氰酸酯原位在底物网上进行压敏粘合 粘合剂产品。 选择二烯聚合物和有机多异氰酸酯以及与二烯聚合物和所用的有机多异氰酸酯共活化的任何其它成分,使得形成在基材卷材上的压敏粘合剂聚合物具有弹性体的特性。