Polymodal-cure silicone composition, and method of making the same
    6.
    发明授权
    Polymodal-cure silicone composition, and method of making the same 失效
    多聚固化硅酮组合物及其制备方法

    公开(公告)号:US5212211A

    公开(公告)日:1993-05-18

    申请号:US615185

    申请日:1990-11-19

    摘要: An acryloxy-functional capped silicone formed as a reaction product of:(i) a silyl diacrylate compound of the formula ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, and R.sub.10 are independently selected from hydrogen, halo, and organo radicals; and n is an integer having a value of from 1 to 4; and(ii) a silicone having (A) functionality which is reactive with an acryloxy functionality of the silyl diacrylate compound, and (B) additional functionality imparting (directly or by reaction with a co-reactant) further curability to the silicone by another modality (e.g., moisture curability, heat curability, etc.)The capped polyfunctional silicone may suitably be formulated with (a) an effective amount of a photoinitiator for partial curing of the acryloxy-functional capped silicone under photoinitiating curing conditions, and (b) suitable curatives, initiators, accelerators, etc., as necessary or desirable for further curing by other cure mechanisms dissociated with the additional functionality (ii) (B). The compositions of the invention are usefully employed as adhesives, sealants, conformal coatings, potting materials, and the like.

    摘要翻译: 形成为以下物质的反应产物的丙烯酰氧基官能的封端硅氧烷:(i)下式的化合物:其中:R1,R2,R3,R4,R5,R6,R7,R8,R9和R10独立地为 选自氢,卤素和有机基团; n为1〜4的整数, 和(ii)具有(A)与甲硅烷基二丙烯酸酯化合物的丙烯酰氧基官能团反应的官能团的硅氧烷,和(B)赋予(直接或通过与共反应物反应)的另外的官能团通过另一种模态对硅氧烷进一步固化 (例如,湿度固化性,热固化性等)。封端的多官能硅氧烷可以适当地配制为(a)有效量的光引发剂,用于在光引发固化条件下部分固化丙烯酰氧基官能的封端硅氧烷,和(b)合适的 固化剂,引发剂,促进剂等,如用另外的官能度(ⅱ)(B)解离的其它固化机理进一步固化所必需或期望的。 本发明的组合物有用地用作粘合剂,密封剂,保形涂料,灌封材料等。