One-part curable elastic sealant
    2.
    发明授权
    One-part curable elastic sealant 失效
    单组分固化弹性密封剂

    公开(公告)号:US4259231A

    公开(公告)日:1981-03-31

    申请号:US31700

    申请日:1979-04-19

    摘要: A one-part curable elastic sealant comprising a dehydrated blend of(I) 100 parts by weight of an acrylic isocyanate elastomer having free isocyanate groups in the molecules,(II) about 0.1 to 15 parts by weight of a reaction promoting catalyst, and(III) about 30 to 200 parts by weight of a filler; said acrylic isocyanate elastomer being the reaction product of an acrylic low molecular weight copolymer with about two equivalents of an organic diisocyanate based on the functional groups in the acrylic low molecular weight copolymer said acrylic low molecular weight copolymer being prepared by copolymerizing(a) an ethylenically unsaturated monomer having a functional group capable of reacting with an organic diisocyanate compound, with(b) an unsaturated monomer of the general formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, and R.sub.2 represents a straight or branched chain alkyl group having 2 to 14 carbon atoms,in the presence of a polymerization initiator having a functional group whose reactivity with the isocyanate compound is equal to or higher than that of the functional group of the monomer (a), and/or a chain transfer agent similarly having a functional group whose reactivity with the isocyanate compound is equal to or higher than that of the functional group of the monomer (a), the mole ratio of monomer (a) to monomer (b) being about 1:5 to 1:500, and the amount of said polymerization initiator and/or chain transfer agent being about 0.1 to 20 parts by weight per 100 parts by weight of monomer (b).

    摘要翻译: 一种单组分可固化弹性密封剂,其包含(I)100重量份分子中具有游离异氰酸酯基团的丙烯酸异氰酸酯弹性体的脱水共混物,(II)约0.1至15重量份的反应促进催化剂和( III)约30〜200重量份的填料; 所述丙烯酸异氰酸酯弹性体是基于丙烯酸类低分子量共聚物中的官能团的丙烯酸类低分子量共聚物与约2当量有机二异氰酸酯的反应产物,所述丙烯酸类低分子量共聚物是通过(a)烯属 具有能够与有机二异氰酸酯化合物反应的官能团的不饱和单体与(b)通式为“IMAGE”的不饱和单体,其中R 1表示氢原子或甲基,R 2表示直链或支链烷基 在具有与异氰酸酯化合物的反应性等于或高于单体(a)的官能团的官能团的聚合引发剂存在下,和/或链转移剂类似地具有2至14个碳原子 具有与异氰酸酯化合物的反应性等于或高于功能的官能团 单体(a)的单体,单体(a)与单体(b)的摩尔比为约1:5〜1:500,所述聚合引发剂和/或链转移剂的量为约0.1〜20 每100重量份单体(b)重量份。

    Composition for forming a release coating layer
    4.
    发明授权
    Composition for forming a release coating layer 失效
    用于形成剥离涂层的组合物

    公开(公告)号:US4362833A

    公开(公告)日:1982-12-07

    申请号:US264524

    申请日:1981-05-18

    摘要: An aqueous composition for forming a release coating layer on a substrate, comprising 100 parts by weight (solids basis) of a mixture of aqueous components of polysiloxanes and from about 20 to 100 parts by weight (solids basis) of an aqueous resin having film-forming ability, wherein the non-volatile content is from about 1 to 60% by weight. The aqueous composition is applied onto a non-permeable substrate to provide a substrate having thereon a release coating layer, which is suitable for use in the production, for example, of a surface protective sheet or tape, and a pressure-sensitive sheet or tape.

    摘要翻译: 一种用于在基材上形成剥离涂层的水性组合物,其包含100重量份(固体为基准)聚硅氧烷的水性组分的混合物和约20至100重量份(基于固体的)具有膜 - 形成能力,其中非挥发物含量为约1至60重量%。 将水性组合物施加到不可渗透的基材上以提供其上具有脱模涂层的基材,其适用于生产例如表面保护片或带,以及压敏片或带 。