公开(公告)号：US12122914B2

公开(公告)日：2024-10-22

申请号：US17054326

申请日：2019-05-09

Applicant: DOW SILICONES CORPORATION

Inventor： Seunghyun Jang ,  Jongchan Park

IPC: C08L83/04 ,  G06F1/16 ,  H10K77/10 ,  C08G77/12 ,  C08G77/20 ,  H10K102/00

CPC classification number: C08L83/04 ,  G06F1/1652 ,  H10K77/111 ,  C08G77/12 ,  C08G77/20 ,  H10K2102/311 ,  C08L83/04 ,  C08L83/00 ,  C08L83/00 ,  C08L83/00

Abstract: A silicone back plate for a flexible display is disclosed herein. The silicone back plate is formed by a cured silicone product having from 70 to 95 of a Shore A hardness measured in accordance with ASTM D2240, and having at least 10 MPa of a tensile strength and at least 30% of an elongation measured in accordance with ASTM D412. The silicone back plate can provide the flexible display with reliability.

公开(公告)号：US12110394B2

公开(公告)日：2024-10-08

申请号：US17611696

申请日：2019-06-13

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company ,  Dow Silicones Corporation

Inventor： Xiangting Dong ,  Ling Li ,  Zhihua Liu ,  Hui Liu ,  Wei Cui ,  Baoqing Zheng ,  Zhi Juan Gong ,  Yan Wu ,  Changkun Piao ,  Jia Tang ,  Dong Yun

IPC: C08L83/04 ,  C08F2/00 ,  C08F2/01 ,  C08F2/22 ,  C08F212/08 ,  C08F220/06 ,  C08F220/14 ,  C08F220/18 ,  C08F220/56 ,  C08F230/08 ,  C08G77/16 ,  C08G77/20 ,  C09D7/65

CPC classification number: C08L83/04 ,  C08F2/001 ,  C08F2/22 ,  C08F212/08 ,  C08F220/06 ,  C08F220/14 ,  C08F220/1804 ,  C08F220/1808 ,  C08F220/56 ,  C08F230/085 ,  C08G77/16 ,  C08G77/20 ,  C09D7/65 ,  C08G2150/00 ,  C08L2201/50 ,  C08L2205/02

Abstract: An aqueous dispersion comprising a multistage polymer comprising a first polymer and a second polymer that comprises structural units of an ethylenically unsaturated siloxane monomer, the multistage polymer comprising, by weight based on the weight of the multistage polymer, 4.5% or more of structural units of the ethylenically unsaturated siloxane monomer, and the coagulum content of the aqueous dispersion is less than 2,000 ppm after filtration through a 44 micron sieve.

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：US12104059B2

公开(公告)日：2024-10-01

申请号：US17424215

申请日：2020-01-21

Applicant: DOW SILICONES CORPORATION

Inventor： Stanton J. Dent ,  Randall G. Schmidt

IPC: C08L83/04 ,  C08G77/08 ,  C08G77/12 ,  C08G77/20 ,  C08G77/24

CPC classification number: C08L83/04 ,  C08G77/08 ,  C08G77/12 ,  C08G77/20 ,  C08G77/24 ,  C08L2201/08 ,  C08L2201/10 ,  C08L2205/025 ,  C08L2205/03 ,  C08L83/04 ,  C08K5/56 ,  C08L83/00 ,  C08L83/00

Abstract: A curable silicone composition is disclosed. The curable silicone composition comprises: (A) a silicone resin consisting essentially of R3SiO1/2 siloxane units and SiO4/2 siloxane units, wherein each R is the same or different, and independently selected from halogen-substituted or unsubstituted monovalent hydrocarbon groups free of aliphatic unsaturated bonds; (B) an organopolysiloxane having at least two alkenyl groups per molecule and free of SiO4/2 siloxane units in the organopolysiloxane; (C) an organosiloxane having at least three silicon atom-bonded hydrogen atoms per molecule; and (D) a hydrosilylation catalyst. The curable silicone composition can be cured to form a cured product having a high tensile strength in addition to a low modulus.

公开(公告)号：US20240301252A1

公开(公告)日：2024-09-12

申请号：US18593521

申请日：2024-03-01

Applicant: Rohm and Haas Electronic Materials Korea Ltd. ,  DuPont Toray Specialty Materials Kabushiki Kaisha

Inventor： Hyunji Kang ,  Shunya TAKEUCHI ,  Mayumi MATSUZAKI ,  Yuri IGUCHI

IPC: C09J11/04 ,  C08G77/00 ,  C08G77/14 ,  C08G77/20 ,  C08K3/22 ,  C08K3/36 ,  C09J183/04

CPC classification number: C09J11/04 ,  C08K3/22 ,  C08K3/36 ,  C09J183/04 ,  C08G77/14 ,  C08G77/20 ,  C08G77/70 ,  C08G77/80 ,  C08K2003/2241

Abstract: A curable silicone composition comprising at least one curing reactive organopolysiloxane in an amount of 65% by weight or more relative to the total weight of the composition, at least one inorganic filler selected from silica, silica-titania composite oxide particle, and a combination thereof, in an amount of 1% by weight or more relative to the total weight of the composition, and at least one additive selected from (C1) organopolysiloxane having at least one organic functional group including at least one polyether structure at molecular side chain and/or molecular terminal; (C2) organosilane compound comprising at least one organic functional group selected from a C1-C6alkyl group, aryl group, and epoxy group, (C3) organopolysiloxane having at least one hydroxy group and at least one aryl group; (C4) organosiloxane oligomer having at least one epoxy group; (C5) unsaturated carboxylic acid or an ester thereof, and combinations thereof.

公开(公告)号：US12083783B2

公开(公告)日：2024-09-10

申请号：US16957999

申请日：2018-12-26

Applicant: ELKEM SILICONES SHANGHAI CO., LTD.

Inventor： Wenjuan Zhou ,  Yin Zhang

IPC: B32B7/12 ,  B32B7/06 ,  B32B9/02 ,  B32B25/20 ,  B32B27/12 ,  B32B27/18 ,  C08G77/00 ,  C08G77/12 ,  C08G77/20 ,  C08K5/5425 ,  C09J183/04

CPC classification number: B32B7/06 ,  B32B7/12 ,  B32B9/025 ,  B32B25/20 ,  B32B27/12 ,  B32B27/18 ,  C08G77/12 ,  C08G77/20 ,  C08G77/70 ,  C08K5/5425 ,  C09J183/04

Abstract: The disclosure relates to a low TVOC release silicone composite sheet, comprising: 1) a substrate layer selected from a fabric or a polymeric film. 2) a silicone adhesive layer coated onto the substrate layer and containing volatile organic compound (VOC) releasing additives, and 3) a reinforcing layer adjacent to the silicone adhesive layer; wherein the coating amount of the silicone adhesive layer is less than 45 wt %, preferably less than 35 wt %, more preferably less than 20 wt %, based on the total coating amount of the silicone adhesive layer and the reinforcing layer. and wherein both silicone adhesive layer and reinforcing layer contain or consist essentially of liquid silicone rubber (LSR) or room temperature vulcanized silicone rubber (RTV), and said reinforcing layer contains one or more coatings comprising A). organopolysiloxane having one or more silicon atom-bonded alkenyl groups on average in one molecule; B). an organohydrogenpolysiloxane; and C). a hydrosilylation reaction catalyst present in any amount effective to cure the composition. Furthermore, it relates also to a method for coating and for reducing TVOC release.

公开(公告)号：US20240270965A1

公开(公告)日：2024-08-15

申请号：US18555908

申请日：2022-03-30

Applicant: Dow Silicones Corporation

Inventor： Qing Cao ,  Shenglan Zhang ,  Chao Ma

IPC: C08L83/08 ,  C08G77/00 ,  C08G77/12 ,  C08G77/16 ,  C08G77/20 ,  C09J7/38 ,  C09J183/04

CPC classification number: C08L83/08 ,  C08G77/12 ,  C08G77/16 ,  C08G77/20 ,  C08G77/70 ,  C09J7/381 ,  C09J183/04 ,  C08L2205/025

Abstract: A curable composition contains: (A) a polydiorganosiloxane component including: (A1) greater than 3.1 wt % to 20 wt % of an aliphatically unsaturated polydiorganosiloxane polymer and (A3) a hydroxyl-terminated polydiorganosiloxane gum of unit formula (A-III); (B) a polyorganosilicate resin component including (B1) a capped resin, (B2) >18.53 wt % to 54.3 wt % of an uncapped resin; where the weight ratio of the uncapped resin (B2) to the capped resin (B1) is greater than 0.51 to 58.82; where component (A) and component (B) are present in amounts to provide a weight ratio of (B):(A) of 1.2:1 to less than 1.62:1; (C) a polyorganohydrogensiloxane that is present in an amount to provide a molar ratio of silicon bonded hydrogen atoms to alkenyl groups for the curable composition of 5 to 50; (D) a hydrosilylation reaction catalyst in an amount sufficient to provide 1 to 1000 ppm of platinum group metal; and (E) a condensation reaction catalyst; where the content of alkenyl groups in the curable composition is 0.017 wt % to 0.089 wt %; and where wt % values are relative to the total weight of components (A), (B), (C), (D) and (E) unless otherwise stated.

公开(公告)号：US20240270920A1

公开(公告)日：2024-08-15

申请号：US18414497

申请日：2024-01-17

Applicant: YANGTZE DELTA REGION INSTITUTE (QUZHOU) , UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Jiaxuan LIAO ,  Xin LONG ,  Lichun ZHOU

IPC: C08J9/28 ,  C01B33/158 ,  C08G77/20 ,  C08G77/392

CPC classification number: C08J9/28 ,  C01B33/1585 ,  C08G77/20 ,  C08G77/392 ,  C01P2004/03 ,  C08J2201/0502 ,  C08J2205/026 ,  C08J2383/04

Abstract: An ultrahigh-strength SiO2 aerogel with alternately configured soft chains and hard cores, and a method for preparing same are provided. According to the present invention, firstly, octa-olefin functionalized silsesquioxane and a mercapto silane coupling agent are dissolved in an organic solvent under a protective gas to perform a catalytic reaction, and then the reaction system is dried to obtain a white powder; secondly, the white powder is dissolved in an alcohol solution, the mixture is stirred until the white powder is completely dissolved, and then an acid-catalyzed hydrolysis reaction and a heat-induced gelation reaction under an alkaline environment are performed to obtain a wet gel; and finally, the gel is subjected to aging, surface modification, displacement and vacuum lyophilization to obtain the ultrahigh-strength SiO2 aerogel with alternately configured soft chains and hard cores.

公开(公告)号：US12060459B2

公开(公告)日：2024-08-13

申请号：US17158149

申请日：2021-01-26

Applicant: Henkel AG & Co. KGaA

Inventor： Christina Despotopoulou ,  Johann Klein ,  Therese Hemery ,  Esteban Mejia ,  Udo Kragl ,  Theresia Koehler ,  Lea Grefe

IPC: C08G77/08 ,  C08G77/00 ,  C08G77/06 ,  C08G77/12 ,  C08G77/16 ,  C08G77/20 ,  C08K5/05 ,  C08K5/18 ,  C08K5/23

CPC classification number: C08G77/08 ,  C08G77/06 ,  C08G77/12 ,  C08G77/16 ,  C08G77/20 ,  C08G77/70 ,  C08G77/80 ,  C08K5/05 ,  C08K5/18 ,  C08K5/23 ,  C08G2170/00

Abstract: The invention relates to a process for preparing polyorganosiloxanes by (i) condensation polymerization of at least one linear organosiloxane which has at least one hydroxy group or hydrolysable group bound to a silicon atom, (ii) ring-opening polymerization of at least one cyclosiloxane, or (iii) ring-opening polymerization and condensation polymerization of a mixture of at least one linear organosiloxane which has at least one hydroxy group or hydrolysable group bound to a silicon atom and at least one cyclosiloxane with a basic initiator and a hydroxy group-containing compound in the presence of a polar aprotic solvent, wherein the obtained polyorganosiloxanes are not miscible in the polar aprotic solvent at room temperature.

公开(公告)号：US12037459B2

公开(公告)日：2024-07-16

申请号：US17431458

申请日：2020-09-27

Applicant: Dow Silicones Corporation

Inventor： Fuming Huang ,  Chengrong Zhu ,  Shenglan Zhang ,  Zhihua Liu

IPC: C08G77/20 ,  C08G77/08 ,  C08G77/00 ,  C08J5/18 ,  C09D183/04 ,  C08K5/54

CPC classification number: C08G77/20 ,  C08G77/08 ,  C08G77/70 ,  C08J5/18 ,  C08K5/54 ,  C09D183/04 ,  C08J2383/07

Abstract: An (A) additive organopolysiloxane composition is disclosed, which includes (A1) a branched organopolysiloxane polymer comprising M, D and Q siloxy units, (A2) a silicone resin, and (A3) a polydiorganosiloxane oligomer. A curable composition is also disclosed, the curable composition including the (A) additive organopolysiloxane composition, (B) an organosilicon compound having at least two silicon-bonded hydrogen atoms per molecule, and (C) a hydrosilylation catalyst. A method of preparing the curable composition, and a method of forming a film with the curable composition are also disclosed. The compositions and methods are useful for forming silicone release coatings with high release force.