公开(公告)号：US10894883B2

公开(公告)日：2021-01-19

申请号：US16310371

申请日：2017-06-15

Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC

Inventor： Yasuhito Morita ,  Koji Okawa ,  Takeshi Sunaga

IPC: C08L83/04 ,  G09F9/00 ,  C08G77/04 ,  G02F1/1333 ,  C08G77/12 ,  C08G77/20

Abstract: The present invention is an addition reaction type polyorganosiloxane composition which can be cured rapidly at room temperature. A cured product of the composition exhibits high elongation, excellent stress relaxation properties and good reliability under conditions of high temperature and high humidity and exhibits excellent reliability in cold/heat cycling. The composition contains: (A1) a straight chain polysiloxane containing alkenyl groups at both terminals; (B1) a straight chain polysiloxane containing SiH groups at both terminals; (B2) a crosslinkable polyorganohydrogensiloxane; one or more types selected from the group consisting of (A2) a straight chain polysiloxane containing an alkenyl group at one terminal and (B3) a straight chain polysiloxane containing a SiH group at one terminal; and (C) a platinum-based catalyst. The content of component A2 is 0-60 parts by weight relative to a total of 100 parts by weight of components A1 and A2, and the value of (HB1+HB2+HB3)/(ViA1+ViA2) (in the formula, ViA1, ViA2, HB1, HB2 and HB3 are as disclosed in the description) is 0.6-2.2.

公开(公告)号：US10160883B2

公开(公告)日：2018-12-25

申请号：US15190916

申请日：2016-06-23

Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC

Inventor： Isao Iida ,  Takeshi Sunaga

IPC: C08L83/00 ,  C08L83/06 ,  C09D183/06 ,  C08G77/18 ,  B05D1/02

Abstract: There is provided a room-temperature-curable polyorganosiloxane composition having low viscosity and good coatability without any solvent and forming a cured coating film excellent in scratch resistance. The room-temperature-curable polyorganosiloxane composition contains: (A) 100 parts by mass of a mixture of (A1) 10 to 80 parts by mass of a polyorganosiloxane having two or more alkoxy groups bonded to silicon atoms and a prescribed viscosity, and (A2) 90 to 20 parts by mass of a polyorganosiloxane represented by an average composition formula: R1aSi(OR2)bO{4−(a+b)}/2 (R1 and R2 represent prescribed group respectively, and a and b are prescribed positive numbers), having an Mw of 2,000 to 100,000 and a three-dimensional network structure, and being in a solid state or in a semisolid state at normal temperature; and (B) 0.1 to 15 parts by mass of an organic titanium compound.