Method for the preparation of (meth)acryloxyalkyl group-containing
linear organopolysiloxane
    11.
    发明授权
    Method for the preparation of (meth)acryloxyalkyl group-containing linear organopolysiloxane 失效
    制备(甲基)丙烯酰氧基烷基的线性有机聚硅氧烷的方法

    公开(公告)号:US5504234A

    公开(公告)日:1996-04-02

    申请号:US451143

    申请日:1995-05-26

    CPC分类号: C08G77/20 C08G77/08

    摘要: A novel method is disclosed for the preparation of a (meth)acryloxyalkyl group-containing organopolysiloxane having a linear structure by the ring-opening siloxane rearrangement polymerization reaction of a (meth)acryloxyalkyl group-containing cyclic organopolysiloxane oligomer either alone or in combination with a cyclic organopolysiloxane oligomer having no (meth)acryloxyalkyl groups. Different from conventional acidic catalyst, the reaction can be promoted by the use of a cation-exchange resin in the H.sup.+ form which can be readily removed from the polymerization mixture after completion of the polymerization reaction leaving no acidic matter which influences on the stability of the product. The catalytic efficiency of the cation-exchange resin can be further enhanced when the resin is, prior to contacting with the cyclic organopolysiloxane oligomer(s), impregnated or swollen with a polar organic solvent such as tetrahydrofuran.

    摘要翻译: 公开了通过单独或与(甲基)丙烯酰氧基烷基的环状有机聚硅氧烷低聚物的开环硅氧烷重排聚合反应制备具有线性结构的(甲基)丙烯酰氧基烷基的有机聚硅氧烷的新方法, 没有(甲基)丙烯酰氧基烷基的环状有机聚硅氧烷低聚物。 与常规酸性催化剂不同,可以通过使用H +形式的阳离子交换树脂来促进反应,其可以在聚合反应完成后容易地从聚合混合物中除去,而不产生影响稳定性的酸性物质 产品。 在与极性有机溶剂如四氢呋喃浸渍或溶胀的环状有机聚硅氧烷低聚物接触之前,可以进一步提高阳离子交换树脂的催化效率。

    Releasing organopolysiloxane composition comprising (meth)acrylic
functional group-containing organopolysiloxanes
    12.
    发明授权
    Releasing organopolysiloxane composition comprising (meth)acrylic functional group-containing organopolysiloxanes 失效
    释放包含(甲基)丙烯酸官能团的有机聚硅氧烷的有机聚硅氧烷组合物

    公开(公告)号:US5397814A

    公开(公告)日:1995-03-14

    申请号:US57387

    申请日:1993-05-06

    摘要: A radiation-curable, releasing silicone composition which comprises an organopolysiloxane having methacrylic or acrylic functional groups and represented by the following general formula ##STR1## In the formula, A represents a monovalent hydrocarbon group having a methacrylic or acrylic moiety, R's independently represent an unsubstituted or substituted monovalent organic group, a is an integer of 1, 2 or 3, b is an integer of 2 or 3, and n is an integer of 1 or over. The organopolysiloxane has a viscosity of from 50 to 2,000 cps., at 25.degree. C. The composition exhibits good releasing properties with respect to self-adhesives.

    摘要翻译: 一种可辐射固化的,释放的硅氧烷组合物,其包含具有甲基丙烯酸或丙烯酸官能团并由以下通式表示的有机聚硅氧烷。在该式中,A表示具有甲基丙烯酸或丙烯酸部分的一价烃基,R独立地表示未取代的 或取代的一价有机基团,a为1,2或3的整数,b为2或3的整数,n为1以上的整数。 有机聚硅氧烷在25℃下的粘度为50至2,000cps。组合物相对于自粘合剂显示出良好的脱模性能。

    Radiation-curable organopolysiloxane-containing composition
    13.
    发明授权
    Radiation-curable organopolysiloxane-containing composition 失效
    含可辐射固化的含有机聚硅氧烷的组合物

    公开(公告)号:US5118723A

    公开(公告)日:1992-06-02

    申请号:US651854

    申请日:1991-02-07

    CPC分类号: C08F290/068

    摘要: A radiation curable organopolysiloxane-containing composition is disclosed which is curable by the irradiation with actinic rays in a relatively low dose to give a cured layer having excellent surface-releasability so that the composition is useful, for example, as a coating agent of release paper for temporary protection of adhesive surface. The composition comprises (a) 0.1 to 20 parts by weight of a linear organopolysiloxane having at least one vinylphenyl or isopropenylphenyl group bonded to only one of the terminal silicon atoms in the molecular chain and (b) 99.9 to 80 parts by weight of a (meth)acrylate compound which is a (meth)acrylic acid ester of a polyhydric alcohol or a polyester of a polyhydric alcohol and a dibasic carboxylic acid esterified with (meth)acrylic acid at the residual hydroxy groups.

    摘要翻译: 公开了一种可辐射固化的含有机聚硅氧烷的组合物,其通过以较低剂量的光化射线照射而可固化,得到具有优异表面剥离性的固化层,使得该组合物可用于例如剥离纸的涂布剂 用于临时保护粘合剂表面。 组合物包含(a)0.1-20重量份具有至少一个乙烯基苯基或异丙烯基苯基的直链有机聚硅氧烷,其仅与分子链中的一个末端硅原子键合,(b)99.9至80重量份的( 甲基)丙烯酸酯化合物,其是多元醇的(甲基)丙烯酸酯或多元醇的聚酯和在残留羟基上与(甲基)丙烯酸酯化的二元羧酸。

    RADIATION-CURABLE SILICONE COMPOSITION
    15.
    发明申请
    RADIATION-CURABLE SILICONE COMPOSITION 审中-公开
    可辐射固化硅胶组合物

    公开(公告)号:US20100255417A1

    公开(公告)日:2010-10-07

    申请号:US12754252

    申请日:2010-04-05

    IPC分类号: G03F7/004

    CPC分类号: C08K5/521 C08L83/06

    摘要: A silicone composition comprising an epoxy-containing organopolysiloxane and a fluoroalkylfluorophosphoric acid salt as a photoacid generator is curable and safe.

    摘要翻译: 包含含环氧基的有机聚硅氧烷和氟代烷基氟磷酸盐作为光致酸发生剂的硅氧烷组合物是可固化和安全的。

    Solvent-free silicone composition for release paper
    16.
    发明授权
    Solvent-free silicone composition for release paper 失效
    用于脱模纸的无溶剂硅氧烷组合物

    公开(公告)号:US07414096B2

    公开(公告)日:2008-08-19

    申请号:US11602369

    申请日:2006-11-21

    申请人: Shinji Irifune

    发明人: Shinji Irifune

    IPC分类号: C08L83/04

    摘要: A solvent-free silicone composition for release paper, comprising: (A) an organopolysiloxane represented by the following average compositional formula (1) (B) an organopolysiloxane represented by the following average compositional formula (2) (C) an organopolysiloxane having alkenyl groups only at its ends, represented by the following formula (3) and (D) an organohydrogenpolysiloxane represented by the following formula (4) wherein the component (A) is contained in an amount of from 10 to 30 wt %, the component (B) is contained in an amount of from 10 to 30 wt %, the component (C) is contained in an amount of from 40 to 80 wt %, based on a total weight of the components (A), (B) and (C), and the component (D) is contained in such an amount that a molar ratio of the hydrogen atom or atoms bonded to a silicon atom to a total of the alkenyl groups of the components (A), (B) and (C) ranges from 1.0 to 4.0. The composition forms a tight release layer whose release force largely increases with release speed.

    摘要翻译: 一种用于剥离纸的无溶剂硅氧烷组合物,其包含:(A)由以下平均组成式(1)表示的有机聚硅氧烷(B)由以下平均组成式(2)表示的有机聚硅氧烷:(C)具有烯基的有机聚硅氧烷 仅在其末端由下式(3)表示,(D)由下式(4)表示的有机氢聚硅氧烷,其中成分(A)的含量为10〜30重量%,成分(B )含量为10〜30重量%,基于组分(A),(B)和(C)的总重量,组分(C)的含量为40至80重量% ),并且成分(D)的含量使得与(A),(B)和(C)成分的氢原子或与硅原子键合的原子与烯基的总量的摩尔比, 范围从1.0到4.0。 该组合物形成了释放力大大地随释放速度而增加的紧密释放层。

    Release film
    17.
    发明授权
    Release film 有权
    释放胶片

    公开(公告)号:US07374819B2

    公开(公告)日:2008-05-20

    申请号:US11038130

    申请日:2005-01-21

    申请人: Shinji Irifune

    发明人: Shinji Irifune

    IPC分类号: C32B25/20

    摘要: A release film comprising a plastic film substrate 3, a first layer 1 provided on at least one side of the substrate, and a second layer 2 provided on the first layer 1. The second layer 2 functions as a release layer and the first layer 1 as an adhesive layer to fix the second layer 2 on the substrate 3. The release film has a small peel force and can be prepared from solvent-free compositions.

    摘要翻译: 一种剥离膜,包括塑料膜基材3,设置在基材的至少一侧的第一层1和设置在第一层1上的第二层2。 第二层2用作剥离层,第一层1用作粘合层,以将第二层2固定在基板3上。 剥离膜具有较小的剥离力,可以由无溶剂的组合物制备。

    Ultraviolet-curable silicone-based releasing composition
    18.
    发明授权
    Ultraviolet-curable silicone-based releasing composition 失效
    紫外线固化型硅氧烷基剥离组合物

    公开(公告)号:US6013693A

    公开(公告)日:2000-01-11

    申请号:US105004

    申请日:1998-06-26

    CPC分类号: C09J4/06 C09D183/06

    摘要: Provided by the invention is an ultraviolet-curable silicone-based releasing agent suitable for use as a coating agent on the back surface of a pressure-sensitive adhesive tape and releasable protective sheet on a pressure-sensitive adhesive label with an advantage that the coating layer thereof is curable by ultraviolet irradiation in an atmosphere which is not completely free from oxygen having an inhibiting effect on the curing reaction of the coating layer contributing to cost reduction for the production of pressure-sensitive adhesive tapes and labels. The releasing composition comprises, in addition to a radical-polymerizable organopolysiloxane having (meth)acryloxyalkyl groups and a photopolymerization initiator, a tertiary amine compound such as isoamyl 4-dimethylamino benzoate and 2-ethylhexyl 4-dimethylamino benzoate in a limited amount.

    摘要翻译: 本发明提供一种紫外线固化型硅氧烷基脱模剂,其适用于粘合带背面的涂布剂和压敏粘合剂标签上的可剥离保护片,其优点是涂层 可以通过紫外线照射在不能完全不含氧的气氛中固化,这对具有抑制作用的涂层的固化反应有助于制造压敏粘合带和标签的成本降低。 除了具有(甲基)丙烯酰氧基烷基的自由基聚合性有机聚硅氧烷和光聚合引发剂外,还可以使用叔胺化合物,例如4-二甲基氨基苯甲酸异戊酯,4-二甲基氨基苯甲酸2-乙基己酯等。

    Curable silicone release composition and release sheet
    19.
    发明授权
    Curable silicone release composition and release sheet 失效
    可固化的硅氧烷防粘组合物和脱模片

    公开(公告)号:US5942591A

    公开(公告)日:1999-08-24

    申请号:US879053

    申请日:1997-06-19

    CPC分类号: C09D183/04

    摘要: A solventless curable silicone release composition contains (A) a branched organopolysiloxane having a vinyl group attached to a silicon atom at an end of its molecular chain, (B) an organohydrogenpolysiloxane having at least three SiH groups in a molecule, and (C) a platinum group metal catalyst. The composition is easily applicable to a thin gage and cures into a releasable silicone coating ensuring light release at high speeds. A release sheet having the cured coating formed thereon has improved release characteristics.

    摘要翻译: 无溶剂固化性有机硅剥离组合物含有(A)在其分子链末端具有与硅原子相连的乙烯基的支链有机聚硅氧烷,(B)分子中具有至少三个SiH基的有机氢聚硅氧烷,(C) 铂族金属催化剂。 该组合物易于应用于薄规格并固化成可释放的硅氧烷涂层,确保高速下的光释放。 具有形成在其上的固化涂层的剥离片具有改善的剥离特性。

    Radiation-curable organopolysiloxane
    20.
    发明授权
    Radiation-curable organopolysiloxane 失效
    可辐射固化的有机聚硅氧烷

    公开(公告)号:US5436281A

    公开(公告)日:1995-07-25

    申请号:US242394

    申请日:1994-05-13

    摘要: Proposed is an improved radiation-curable organopolysiloxane composition capable of giving a cured surface film on a substrate surface which exhibits excellent releasability against sticky substances. The composition is obtained by combining two kinds of (meth)acryloxyalkyl-containing organopolysiloxanes in a specified weight proportion, of which one has a relatively large degree of polymerization but contains only a relatively small amount of the silicon-bonded (meth)acryloxyalkyl groups while the other has a relatively small degree of polymerization but contains a relatively large amount of the silicon-bonded (meth)acryloxyalkyl groups. By virtue of this unique formulation, the surface-release sheet provided with a cured surface film of this organopolysiloxane composition and attached to a sticky surface for temporary protection is safe from generation of a peeling noise which is unavoidable in the prior art when a surface-release sheet is peeled off from the sticky surface at a high peeling velocity, especially, when the peeling resistance is great.

    摘要翻译: 提出了能够在基材表面上赋予固化的表面膜的改进的可辐射固化的有机基聚硅氧烷组合物,其对粘性物质具有优异的脱模性。 通过组合两种(甲基)丙烯酰氧基烷基的有机聚硅氧烷以特定重量比例组合,其中聚合度相对较高但仅含有相对少量的与硅键合的(甲基)丙烯酰氧基烷基,而 另一方面具有相对较小的聚合度,但含有相对大量的与硅键合的(甲基)丙烯酰氧基烷基。 由于这种独特的配方,具有这种有机基聚硅氧烷组合物的固化的表面膜并附着在粘性表面上用于临时保护的表面剥离片材就不会产生现有技术中不可避免的剥离噪音, 剥离片以高剥离速度从粘性表面剥离,特别是耐剥离性大时,