公开(公告)号：US20120277362A1

公开(公告)日：2012-11-01

申请号：US13458845

申请日：2012-04-27

申请人： Minoru IGARASHI ,  Yutaka Hagiwara

发明人： Minoru IGARASHI ,  Yutaka Hagiwara

IPC分类号： C08K3/34

CPC分类号： C08J3/24 ,  C08G77/20 ,  C08J2383/04 ,  C08K3/36 ,  C08K5/5419 ,  C08L83/04

摘要： A method for producing a silicone rubber compound in a reduced blending time and which imparts excellent resistance to plasticity reversion, and the cured silicone rubber prepared without heat treatment has excellent resistance to compression set. The method comprises mixing components: (A) an organopolysiloxane having a polymerization degree of at least 100 represented by the following average compositional formula (I): R1aSiO(4−a)/2   (I) wherein R1 is independently a substituted or unsubstituted monovalent hydrocarbon group, and a is 1.95 to 2.05; (B) a reinforcing silica having a specific surface area as measured by BET absorption method of at least 50 m2/g, (C) an alkoxysilane represented by the following formula (II): R2mSi(OR3)4−m   (II) wherein R2 is independently hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group, R3 is independently a substituted or unsubstituted alkyl group, and m is 0, 1, 2, or 3, and (D) water, and the heat treatment.

摘要翻译： 一种缩短混合时间制备硅橡胶化合物的方法，其具有优异的耐回缩性，并且不经热处理制备的固化的硅橡胶具有优异的耐压缩变形性。 该方法包括混合组分：（A）聚合度为至少为100的由以下平均组成式（I）表示的聚合度的有机聚硅氧烷：R1aSiO（4-a）/ 2（I）其中R1独立地为取代或未取代的单价 烃基，a为1.95〜2.05; （B）通过BET吸收法测定的比表面积为至少50m 2 / g的增强二氧化硅，（C）由下式（II）表示的烷氧基硅烷：R2mSi（OR3）4-m（II）其中 R2独立地为氢原子或取代或未取代的单价烃基，R3独立地为取代或未取代的烷基，m为0,1,2或3，（D）水和热处理。