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    • 1. 发明授权
    • Photocurable organopolysiloxane compositions
    • 光固化有机聚硅氧烷组合物
    • US4359369A
    • 1982-11-16
    • US180934
    • 1980-08-25
    • Minoru TakamizawaFumio OkadaYasuaki HaraHsashi AokiYoshio Inoue
    • Minoru TakamizawaFumio OkadaYasuaki HaraHsashi AokiYoshio Inoue
    • C08G77/28C08G77/392C08L83/08G03F7/075G03C1/68C08G77/00
    • C08L83/08C08G77/28C08G77/392G03F7/0757Y10S522/905
    • The invention provides a novel photocurable organopolysiloxane composition having an unusually high photosensitivity suitable, for example, for providing an anti-sticking layer on a release paper. The composition comprises an organopolysiloxane having, in a molecule, at least one thioacyloxy-containing organosiloxane unit as the photosensitive functional group and a photosensitizer. Further improved photocurable composition of the invention comprises an organopolysiloxane having, in addition to the above mentioned thioacyloxy-containing organosiloxane units, at least one mercaptohydrocarbyl-containing organosiloxane unit in a molecule. Alternatively, photosensitivity of the similar degree is obtained when the composition comprises a first organopolysiloxane having, in a molecule, at least one thioacyloxy-containing organosiloxane unit and a second organopolysiloxane having, in a molecule, at least one mercaptohydrocarbyl-containing organosiloxane unit as combined.
    • 本发明提供了一种新颖的光固化有机聚硅氧烷组合物,其具有非常高的光敏性,其适合于例如在剥离纸上提供防粘层。 该组合物包含在分子中含有至少一个含硫代酰氧基的有机硅氧烷单元作为光敏官能团的有机聚硅氧烷和光敏剂。 本发明的进一步改善的光固化性组合物还包含除上述含硫代酰氧基的有机硅氧烷单元外的分子中含有至少一个含巯基烃基的有机硅氧烷单元的有机聚硅氧烷。 或者,当组合物包含在分子中含有至少一个含硫代酰氧基的有机硅氧烷单元和在分子中具有至少一个含巯基烃基的有机硅氧烷单元的第二有机聚硅氧烷时,得到相似程度的光敏性, 。
    • 2. 发明授权
    • Photocurable organopolysiloxane compositions
    • 光固化有机聚硅氧烷组合物
    • US4303484A
    • 1981-12-01
    • US68593
    • 1979-08-22
    • Minoru TakamizawaFumio OkadaYasuaki HaraAoki, Hisashi
    • Minoru TakamizawaFumio OkadaYasuaki HaraAoki, Hisashi
    • C08F2/46C08L83/08D21H19/32G03F7/075
    • G03F7/0757C08F2/46C08L83/08D21H19/32Y10S522/904Y10T428/31663Y10T428/31667
    • A novel photocurable composition suitable for preparing, for example, release papers is proposed which is formulated with photocrosslinkable organopolysiloxanes necessitating no conventional photosensitizers. Thus, the composition comprises(a) an organopolysiloxane having at least two mercaptoalkyl, e.g. mercaptopropyl, groups bonded to the silicon atoms in a molecule,(b) an organopolysiloxane having at least two alkenyl, e.g. vinyl groups directly bonded to the silicon atoms in a molecule, and(c) an organopolysiloxane having at least one benzoin group ##STR1## where Ph is a phenyl group, bonded to the silicon atom in a molecule, which component (c) serves as a photosensitizing ingredient. Alternatively, the inventive composition comprises (a) a mercaptoalkyl-containing organopolysiloxane as above and (b') an organopolysiloxane having, simultaneously, at least two alkenyl groups and at least one benzoin group directly bonded to the silicon atoms in a molecule, which component (b') serves both as the crosslinking agent and as the photosensitizing ingredient simultaneously. Owing to the unquestionable affinity of the photosensitizing ingredient with the other components, the inventive compositions have very high sensitivity in photocuring along with several other advantageous characteristics.
    • 提出了适用于制备例如离型纸的新型光固化性组合物,其与光可交联的有机聚硅氧烷配制,不需要常规的光敏剂。 因此,组合物包含(a)具有至少两个巯基烷基的有机聚硅氧烷。 巯基丙基,分子中与硅原子键合的基团,(b)具有至少两个烯基的有机聚硅氧烷,例如 分子中直接与硅原子键合的乙烯基,和(c)具有至少一个苯偶姻基团的成分的有机聚硅氧烷,其中Ph是分子中与硅原子键合的苯基,该组分(c)用作 光敏成分。 或者,本发明的组合物包含(a)如上所述的含巯基烷基的有机聚硅氧烷和(b')有机聚硅氧烷,其同时具有至少两个烯基和至少一个与分子中的硅原子键合的苯偶姻基团,该组分 (b')同时用作交联剂和光敏成分。 由于光敏成分与其它组分的无疑的亲和性,本发明的组合物在光固化中具有非常高的灵敏度以及若干其它有利特征。
    • 4. 发明授权
    • Release silicone emulsion composition
    • 释放硅氧烷乳液组合物
    • US5095067A
    • 1992-03-10
    • US184026
    • 1988-04-20
    • Yasuaki HaraFumio Okada
    • Yasuaki HaraFumio Okada
    • C08L83/07B01J13/00C08J3/24C09D183/04C09J7/02
    • C09D183/04
    • A release silicone emulsion composition comprising:(A) 100 parts by weight of a specific organovinylpolysiloxane;(B) from 1 to 50 parts by weight of a specific organohydrogenpolysiloxane;(C) from 0.5 part to 5 parts by weight of a platinum catalyst having a viscosity of 10 cSt or less at 25.degree. C.;(D) from 1.5 to 15 parts by weight of a nonionic emulsifying agent having an average HLB of from 10 to 20, pH of 6.5 or less and an ionic conductivity of 30 .mu..OMEGA..sup.-1 cm.sup.-1 or less; and(E) water.This composition has good pot life and curability. The cured film has good release properties and residual adhesive properties of adhesives.
    • 一种脱模硅氧烷乳液组合物,其包含:(A)100重量份的特定有机乙烯基聚硅氧烷; (B)1〜50重量份的特定有机氢聚硅氧烷; (C)在25℃下粘度为10cSt以下的铂催化剂为0.5〜5重量份。 (D)1.5〜15重量份的平均HLB为10〜20,pH值为6.5以下,离子电导率为30万欧姆〜1cm-1以下的非离子乳化剂。 和(E)水。 该组合物具有良好的适用期和固化性。 固化膜具有良好的剥离性能和粘合剂的残留粘合性能。
    • 7. 发明授权
    • Method for imparting releasability to a substrate surface
    • 赋予基材表面释放性的方法
    • US4726964A
    • 1988-02-23
    • US848814
    • 1986-04-04
    • Kenichi IsobeHisashi AokiYasuaki HaraMeguru KashidaKiyohiro Kondow
    • Kenichi IsobeHisashi AokiYasuaki HaraMeguru KashidaKiyohiro Kondow
    • C08L83/00C08L83/04C08L83/05C08L83/07C09J7/02D21H19/32B05D3/06
    • D21H19/32C08L83/04C09J7/0228C08G77/12C08G77/20C09J2205/31C09J2483/005
    • The invention provides a method for imparting releasability to the surface of a plastic film or paper by coating the surface with an organopolysiloxane composition followed by curing, in which the curing is complete by heating at a relatively low temperature and the cured surface film of the composition is very stable and free from the problem of transfer to another body in contact therewith. The composition comprises a vinyl-containing organopolysiloxane, an organohydrogenpolysiloxane and a platinum compound to catalyze the addition reaction between the silicon-bonded vinyl groups and silicon-bonded hydrogen atoms. Different from conventional organohydrogenpolysiloxane having a linear molecular structure, the organohydrogenpolysiloxane used in the invention is represented by the general unit formula (RSiO.sub.1.5).sub.m (RHSiO.sub.0.5).sub.n, in which R is a monovalent hydrocarbon group free form unsaturation and m and n are each a positive integer with the proviso that the ratio of n/m is from 0.1 to 3.0, or a combination thereof with a linear organohydrogenpolysiloxane.
    • 本发明提供了一种通过用有机聚硅氧烷组合物涂覆表面然后进行固化来赋予塑料膜或纸的表面释放性的方法,其中通过在相对低的温度下加热固化,并且组合物的固化表面膜 非常稳定,没有转移到与其接触的另一身体的问题。 该组合物包含含乙烯基的有机聚硅氧烷,有机氢聚硅氧烷和铂化合物,以催化与硅键合的乙烯基和与硅键合的氢原子之间的加成反应。 与具有直链分子结构的常规有机氢聚硅氧烷不同,本发明中使用的有机氢聚硅氧烷由通式(RSiO 1.5)m(R HSiO 0.5)n表示,其中R是一价烃基不饱和键,m和 n各自为正整数,条件是n / m的比例为0.1至3.0,或其与线性有机氢聚硅氧烷的组合。