公开(公告)号：US20240425660A1

公开(公告)日：2024-12-26

申请号：US18752948

申请日：2024-06-25

Applicant: ROGERS CORPORATION

Inventor： Kshitish A. Patankar ,  Kenneth Mazich

IPC: C08J9/228 ,  C08J9/00 ,  C08J9/12 ,  C08J9/14 ,  C08J9/36

Abstract: A curable composition for preparing a compressible silicone foam includes an alkenyl-containing component including an alkenyl-diterminated polyorganosiloxane, an alkenyl-substituted MQ polyorganosiloxane, and an alkenyl-substituted copolyorganosiloxane, and a hydride-containing component comprising a hydride-substituted polyorganosiloxane. The curable composition includes a cure catalyst; a filler composition; and a blowing agent. Compressible foams made from the curable composition and methods of making compressible foams from the curable composition are also disclosed.

公开(公告)号：US20240327577A1

公开(公告)日：2024-10-03

申请号：US18618461

申请日：2024-03-27

Applicant: ROGERS CORPORATION

Inventor： Kshitish A. Patankar ,  Katherine Vuong ,  Kenneth Mazich

IPC: C08G77/20 ,  C08G77/08 ,  C08G77/12 ,  C08G77/16 ,  C08J9/00 ,  C08J9/06 ,  C08J9/12 ,  C08J9/14 ,  C08K3/12

CPC classification number: C08G77/20 ,  C08G77/08 ,  C08G77/12 ,  C08G77/16 ,  C08J9/0066 ,  C08J9/06 ,  C08J9/125 ,  C08J9/127 ,  C08J9/142 ,  C08K3/12 ,  C08G2110/0041 ,  C08J2201/022 ,  C08J2203/10 ,  C08J2203/12 ,  C08J2203/204 ,  C08J2205/052 ,  C08J2383/05 ,  C08J2383/06 ,  C08J2383/07

Abstract: A curable composition for preparing a low density cast silicone foam includes a first part and a second part. The first part includes particular amounts of an alkenyl-terminated polyorganosiloxane; an alkenyl-substituted copolyorganosiloxane; an alkenyl-substituted MQ polyorganosiloxane; a cure catalyst; an inorganic filler; and a chemical blowing agent. The second part includes a hydride-substituted polyorganosiloxane. The resulting silicone foams advantageously have a density of less than 240 kg/m3; and a closed cell content of at least 50%. Cured silicone foams and methods for the manufacture thereof are also described.

公开(公告)号：US20230134127A1

公开(公告)日：2023-05-04

申请号：US17971800

申请日：2022-10-24

Applicant: ROGERS CORPORATION

Inventor： Katherine Vuong ,  Max Kristy ,  Kenneth Mazich

IPC: C08J9/00 ,  C08G77/08 ,  C08G77/12 ,  C08G77/20 ,  C08G77/00

Abstract: A very thin filled silicone foam layer is formed from a composition that includes a curable polysiloxane composition including an alkenyl-substituted polyorganosiloxane, a hydride-substituted polyorganosiloxane, and a cure catalyst; a plurality of expanded polymer microspheres having a largest dimension of less than the thickness of the foam; and a filler composition, wherein each component of the filler composition has a largest dimension of less than the thickness of the foam, the filler composition comprising a particulate ceramic filler, a particulate calcium carbonate filler, or a particulate aluminosilicate clay filler having a plate morphology, or a particulate aluminosilicate clay filler having a hollow tubular morphology, a particulate polymeric silsesquioxane filler, or a particulate methyl-phenyl MQ filler, or a plurality of glass microspheres, or a particulate paraffin wax, or a combination thereof; wherein the curable filled composition has a viscosity of less than 400,000 centiStokes, or 100,000 to 350,000 centiStokes.