Method of preparing solventless silicone resins that exhibit superior
reconstitution and the resins so-produced
    2.
    发明授权
    Method of preparing solventless silicone resins that exhibit superior reconstitution and the resins so-produced 失效
    制备表现出优异重构的无溶剂硅树脂的方法和如此制备的树脂

    公开(公告)号:US5723521A

    公开(公告)日:1998-03-03

    申请号:US497736

    申请日:1995-07-03

    摘要: Solventless silicone resins, which exhibit a high degree of reconstitution, are produced in forms such as powders and flakes. The degree of reconstitution is judged by the fact that silicone resin/fluid alloys produced therefrom exhibit only a minor shift in T.sub.g, the glass transition temperature, in comparison to analogous alloys produced from solvent dispersed (virgin) resin. Resin, and preferably virgin resin, is dispersed in a volatile liquid dispersant and blended with a nonvolatile silicone fluid. Thereafter, the volatile liquid dispersant is removed by means such as spray-drying or evaporation, resulting in the solventless resin forms of the invention.

    摘要翻译: 表现出高度重构的无溶剂硅树脂以粉末和薄片的形式生产。 通过以下事实来判断重构程度:与由溶剂分散(原始)树脂制备的类似合金相比,由其生产的硅树脂/流体合金仅显示出Tg的微小偏移,玻璃化转变温度。 树脂,优选原始树脂分散在挥发性液体分散剂中并与非挥发性硅氧烷流体共混。 此后,通过喷雾干燥或蒸发等手段去除挥发性液体分散剂,得到本发明的无溶剂树脂形式。

    Method of dispersing silicone compositions in organic thermoplastic
materials
    3.
    发明授权
    Method of dispersing silicone compositions in organic thermoplastic materials 失效
    将有机硅组合物分散在有机热塑性材料中的方法

    公开(公告)号:US5844031A

    公开(公告)日:1998-12-01

    申请号:US704061

    申请日:1996-08-28

    摘要: A method of dispersing silicone compositions in organic thermoplastic materials is disclosed. The novel compositions produced by the method of the invention have a fine and relatively uniform dispersion or organosilicone in an organic thermoplastic. An organosilicone resin (A) and a predominantly linear silicone fluid (B) are first blended to substantial homogeneity to form an organosilicone alloy therefrom. The organosilicone alloy exhibits thermoplastic behavior and has a temperature-dependent complex viscosity .eta.*.sub.Si (T) associated therewith. Likewise the organic thermoplastic materials have a temperature-dependent complex viscosity, .eta.*.sub.OTP (T), associated therewith. The organic thermoplastic and the organosilicone alloy are thereafter mixed at a predetermined mixing temperature, T.sub.m, and a predetermined shear strain rate. The organic thermoplastic material and the organosilicone alloy are both in a flowable state at T.sub.m. The value of T.sub.m is selected to be about .+-.30.degree. C. of a temperature, T.sub.0, wherein the absolute value of {72*.sub.OTP (T.sub.0)-.eta.*.sub.Si (T.sub.0)} is at its lowest value, at the predetermined shear strain rate.

    摘要翻译: 公开了将有机硅组合物分散在有机热塑性材料中的方法。 通过本发明的方法生产的新型组合物在有机热塑性塑料中具有精细且相对均匀的分散体或有机硅氧烷。 首先将有机硅氧烷树脂(A)和主要为线性的硅氧烷流体(B)进行共混,从而形成有机硅氧烷合金。 有机硅合金表现出热塑性,并具有与之相关的温度依赖性复数粘度ηa(T)。 类似地,有机热塑性材料具有与之相关的温度依赖性复合物粘度eta * OTP(T)。 然后将有机热塑性塑料和有机硅合金以预定的混合温度Tm和预定的剪切应变速率混合。 有机热塑性材料和有机硅合金在Tm处于可流动状态。 选择Tm的值为约+/- 30℃的温度T0,其中{72 * OTP(T0) - eta * Si(T0)}的绝对值处于其最低值,在 预定的剪切应变速率。

    Organic polymers modified with thermoplastic silicone blends
    4.
    发明授权
    Organic polymers modified with thermoplastic silicone blends 失效
    用热塑性硅酮共混物改性的有机聚合物

    公开(公告)号:US5861450A

    公开(公告)日:1999-01-19

    申请号:US705105

    申请日:1996-08-28

    摘要: An additive to improve the hydrophobicity of a thermoplastic resin wherein the additive is at least 0.3 parts by weight of a thermoplastic silicone blend, said thermoplastic silicone blend having:(A) an organosilicone resin of the empirical formula(R.sub.3 Sio.sub.1/2)a (R.sub.2 SiO.sub.2/2)b (RSiO.sub.3/2)c( SiO.sub.4/2)dwherein: a and d are positive numerical values and b and c are zero or positive numerical values with the provisos that a+b+c+d=1, 0.ltoreq.(b+c).ltoreq.0.2 and the ratio of a:(b+c+d) is between about 0.3 and 1.0; and R is a monovalent radical independently selected from the group consisting of hydrogen, hydroxyl, alkyl, alkenyl, alkoxy, oximo, aryl, epoxide, carboxyl, ether, polyether, amide and alkyl amino radicals, which R groups may be the same or different, with the proviso that at least sixty mole percent of said R radicals are methyl; and(B) a predominantly linear silicone fluid having the empirical formula(R'.sub.3 SiO.sub.1/2)x (R'.sub.2 SiO.sub.2/2)y (R'SiO.sub.3/2)zwherein: x and y are positive numerical values and z is 0 or a positive numerical value with the provisos that x+y+z=1, y/(x+y+z).gtoreq.0.8; and R' is a monovalent radical independently selected from the group consisting of hydroxyl and alkyl radicals, which R' groups may be the same or different, with the proviso that at least sixty mole percent of said R' radicals are methyl;said organosilicone resin (A) and said predominantly linear silicone fluid (B) being present in relative amounts such that said blends have a dynamic shear modulus (G*), measured at a frequency of 10 radians/sec, of at least 5.times.10.sup.7 dyne/cm.sup.2 at temperatures less than said predetermined maximum storage temperature.

    摘要翻译: 一种用于改善热塑性树脂的疏水性的添加剂,其中所述添加剂为至少0.3重量份的热塑性硅氧烷共混物,所述热塑性硅氧烷共混物具有:(A)经验式(R3Si1 / 2)a的有机硅氧烷树脂(R2SiO2 / 2)b(RSiO3 / 2)c(SiO4 / 2)d其中a和d为正数值,b和c为零或正数值,条件是a + b + c + d = /=(b+c) = 0.8; 并且R'是独立地选自羟基和烷基的一价基团,R'基团可以相同或不同,条件是至少60摩尔%的所述R'基团是甲基; 所述有机硅氧烷树脂(A)和所述主要线性硅氧烷流体(B)以相对的量存在,使得所述共混物的动态剪切模量(G *)以10弧度/秒的频率测量为至少5×10 7达因/ cm2,在低于所述预定最大存储温度的温度下。

    Silicone composition, method for the preparation thereof, and silicone
elastomer
    8.
    发明授权
    Silicone composition, method for the preparation thereof, and silicone elastomer 有权
    硅酮组合物,其制备方法和硅氧烷弹性体

    公开(公告)号:US6124407A

    公开(公告)日:2000-09-26

    申请号:US181211

    申请日:1998-10-28

    摘要: A silicone composition comprising (A) 100 parts by weight of a polydiorganosiloxane containing an average of at least two silicon-bonded alkenyl groups per molecule; (B) 75 to 150 parts by weight of an organopolysiloxane resin having a number-average molecular weight of from 2,000 to 5,000 and consisting essentially of R.sup.3.sub.2 R.sup.4 SiO.sub.1/2 units and SiO.sub.4/2 units wherein each R.sup.3 is independently selected from the group consisting of monovalent hydrocarbon and monovalent halogenated hydrocarbon groups free of aliphatic unsaturation, R.sup.4 is selected from the group consisting of R.sup.3 and alkenyl, the mole ratio of R.sup.3.sub.2 R.sup.4 SiO.sub.1/2 units to SiO.sub.4/2 units is from 0.6:1 to 1.1:1, and the resin contains an average of from 2.5 to 7.5 mole percent of alkenyl groups; (C) an organohydrogenpolysiloxane having an average of at least three silicon-bonded hydrogen atoms per molecule in an amount sufficient to provide from one to three silicon-bonded hydrogen atoms per alkenyl group in components (A) and (B) combined; (D) an adhesion promoter in an amount sufficient to effect adhesion of the composition to a substrate; and (E) a hydrosilylation catalyst in an amount sufficient to cure the composition.

    摘要翻译: 一种硅氧烷组合物,其包含(A)100重量份的每分子平均具有至少两个硅键合的烯基的聚二有机硅氧烷; (B)75〜150重量份的数均分子量为2,000〜5,000的有机聚硅氧烷树脂,其基本上由R32R4SiO + E,1/2 + EE单元和SiO 4/2单元构成,其中每个R 3为 独立地选自单价烃和不含脂肪族不饱和键的一价卤代烃基,R4选自R3和烯基,R32R4SiO + E,fra1 / 2 + EE单元与SiO4 / 2单位为0.6:1至1.1:1,并且所述树脂含有平均2.5至7.5摩尔%的烯基; (C)每分子平均具有至少三个与硅键合的氢原子的有机氢聚硅氧烷,其量足以在组合物(A)和(B)中每个烯基上提供一至三个与硅键合的氢原子; (D)粘合促进剂,其量足以使组合物与基材粘合; 和(E)足以固化组合物的量的氢化硅烷化催化剂。

    COATINGS WITH CARBINOL-FUNCTIONAL SILOXANE RESIN
    9.
    发明申请
    COATINGS WITH CARBINOL-FUNCTIONAL SILOXANE RESIN 失效
    碳化硅官能硅氧烷树脂涂料

    公开(公告)号:US20100215847A1

    公开(公告)日:2010-08-26

    申请号:US12293610

    申请日:2007-03-23

    IPC分类号: B05D3/10 C08L83/06

    CPC分类号: C08L83/06 C09D183/06

    摘要: A coating composition contains a carbamate-functional film-forming material, a carbinol-functional, nonlinear siloxane resin, and an aminoplast crosslinking agent. The composition provides excellent high-bake repair adhesion of a repair-coating layer over the initial coating.

    摘要翻译: 涂料组合物含有氨基甲酸酯官能的成膜材料,甲醇官能的非线性硅氧烷树脂和氨基塑料交联剂。 该组合物在初始涂层上提供了优异的高修补粘附力。

    Coating compositions containing a carbinol functional silicone resin or an anhydride functional silicone resin
    10.
    发明授权
    Coating compositions containing a carbinol functional silicone resin or an anhydride functional silicone resin 失效
    含有甲醇官能的有机硅树脂或酸酐官能的有机硅树脂的涂料组合物

    公开(公告)号:US07727595B2

    公开(公告)日:2010-06-01

    申请号:US11665574

    申请日:2005-10-20

    IPC分类号: B05D3/02

    摘要: A radiation or thermal curable coating composition contains a cycloaliphatic epoxide resin, a carbinol functional silicone resin or an anhydride functional silicone resin, and a thermal or photoactivated acid catalyst. An organic polyol may also be included in the composition as an optional component. The composition is useful as a radiation curable coating, as an adhesive, a photodefinable coating, or as a thermal cure coating. The cycloaliphatic epoxide resin adds toughness and adhesion to the composition, whereas either of the carbinol functional silicone resin or the anhydride functional silicone resin provides the composition with water resistance, weatherability, thermal stability, and flexibility.

    摘要翻译: 辐射或热固化涂料组合物含有脂环族环氧树脂,甲醇官能的有机硅树脂或酸酐官能的有机硅树脂,以及热或光活化的酸催化剂。 组合物中还可以包含有机多元醇作为任选的组分。 该组合物可用作可辐射固化涂层,作为粘合剂,光可定义涂层或作为热固化涂层。 脂环族环氧树脂增加了组合物的韧性和粘合性,而甲醇官能化硅树脂或酸酐官能化硅氧烷树脂中的任何一种为组合物提供了耐水性,耐候性,热稳定性和柔软性。