公开(公告)号：US11884796B2

公开(公告)日：2024-01-30

申请号：US17846572

申请日：2022-06-22

Applicant: NITTO DENKO CORPORATION ,  Tao Gu

Inventor： Shimpei Yakuwa ,  Kou Uemura ,  Shunji Imamura ,  Tomoyuki Kasagi ,  Tao Gu

IPC: C08K7/26 ,  C08K3/36 ,  H05K1/03

CPC classification number: C08K7/26 ,  C08K3/36 ,  H05K1/0373 ,  C08K2201/002 ,  C08K2201/003 ,  C08K2201/006 ,  C08K2201/011 ,  H05K2201/015 ,  H05K2201/0209

Abstract: Provided is a composite material that shows a low specific dielectric constant, and that hardly causes an appearance failure or changes in characteristics when exposed to, for example, a treatment liquid to be used in the production of an electronic circuit board. Specifically, a plate-like composite material including polytetrafluoroethylene and a predetermined filler, and satisfying a predetermined condition serves as a composite material that shows a low specific dielectric constant, and that hardly causes an appearance failure or changes in characteristics even when exposed to, for example, a treatment liquid to be used in the production of an electronic circuit board.

公开(公告)号：US11884551B2

公开(公告)日：2024-01-30

申请号：US16611157

申请日：2018-05-03

Applicant: RHODIA OPERATIONS

Inventor： Emmanuelle Allain Najman ,  Fabien Stocklouser ,  Pascaline Garbey ,  Caroline Fayolle ,  Sylvaine Neveu ,  Laurent Guy

IPC: C01B33/193 ,  B01J21/08 ,  B01J35/10 ,  C08K3/36

CPC classification number: C01B33/193 ,  B01J21/08 ,  B01J35/1014 ,  B01J35/1019 ,  C08K3/36 ,  C01P2002/54 ,  C01P2004/51 ,  C01P2006/12 ,  C01P2006/16 ,  C08K2201/005 ,  C08K2201/006

Abstract: A precipitated silica having a broad particle size distribution and large median particle size as well as its method of manufacture is provided. The precipitated silica has a CTAB surface area SCTAB in the range from 40 to 300 m2/g, a difference between BET surface area SBET and CTAB surface area SCTAB of at least 35 m2/g, a width of the particle size distribution Ld, measured by centrifugal sedimentation, of at least 1.5, an amount of aluminium WA1 in the range from 0.5 to 7.0 wt %, and a median particle size d50, measured by centrifugal sedimentation, such that for a given value of CTAB surface area SCTAB and amount of aluminium WAl, parameter A, defined by the following equation: A=|d50|+0.782×|SCTAB|−8.524×|WAl|.

公开(公告)号：US20240026057A1

公开(公告)日：2024-01-25

申请号：US18271148

申请日：2021-12-22

Applicant: Asahi Kasei Kabushiki Kaisha

Inventor： Daisuke Hayata ,  Yoshifumi Araki ,  Shinichi Motofusa

IPC: C08F297/04 ,  C08L7/00 ,  C08L9/06 ,  C08K3/04 ,  C08K3/36 ,  C08K3/06 ,  C08K5/17 ,  C08C19/02 ,  C08C19/22 ,  B60C1/00

CPC classification number: C08F297/044 ,  C08L7/00 ,  C08L9/06 ,  C08K3/04 ,  C08K3/36 ,  C08K3/06 ,  C08K5/17 ,  C08C19/02 ,  C08C19/22 ,  B60C1/0025 ,  C08K2201/006 ,  C08L2312/00 ,  C08L2205/025 ,  C08L2205/03

Abstract: Provided is a crosslinking rubber composition containing: a rubber-like polymer (A) having an iodine value of 10 to 250 (g/100 g), comprising 3% by mass or more of an ethylene structure and less than 10% by mass of a vinyl aromatic monomer block, containing a nitrogen atom, and having a modification ratio measured by column adsorption GPC of 40% by mass or more; and a crosslinking agent (B).

公开(公告)号：US20240018283A1

公开(公告)日：2024-01-18

申请号：US18037555

申请日：2021-11-23

Applicant: LG CHEM, LTD.

Inventor： Sang Yool LEE ,  Joon Hee CHO ,  Eun Kyoung SONG ,  Sangeun AN ,  Eunyoung SHIN ,  Jinseok LEE ,  Kiju UM ,  Jinmo KIM

IPC: C08F110/02 ,  C08F4/6592 ,  C08F4/659 ,  C08K3/36 ,  C08K9/12 ,  H01M50/446

CPC classification number: C08F110/02 ,  C08F4/65927 ,  C08F4/65912 ,  C08K3/36 ,  C08K9/12 ,  H01M50/446 ,  C08K2201/006

Abstract: The present disclosure relates to an organic-inorganic hybrid polyolefin composite and a preparation method of the same.

公开(公告)号：US20230415515A1

公开(公告)日：2023-12-28

申请号：US18211781

申请日：2023-06-20

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Kazuchika SUGAHARA

IPC: B60C1/00 ,  C08L9/06 ,  C08K3/04 ,  C08K3/36 ,  B60C11/03 ,  B60C11/00

CPC classification number: B60C1/0016 ,  C08L9/06 ,  C08K3/04 ,  C08K3/36 ,  B60C11/03 ,  B60C11/0008 ,  B60C2011/0341 ,  B60C2011/0025 ,  C08K2201/006

Abstract: Provided is a tire with a tread portion having a circumferential groove communicating in the circumferential direction, wherein the cap rubber layer forming the tread portion is formed from a rubber composition which contains 40 parts by mass or more and 80 parts by mass or less of styrene-butadiene rubber (SBR) having a styrene content of 25% by mass or less, and 60 parts by mass or more of a filler with respect to 100 parts by mass of the rubber component, and has a loss tangent 10° C. tan δ of less than 0.28, and a glass transition temperature Tg (° C.) of −40° C. or lower; and the glass transition temperature Tg (° C.) and the depth G (mm) of the circumferential groove satisfy Tg≤−0.5×G−35; and an object of the present invention is to improve off-road performance of a tire.

公开(公告)号：US20230383097A1

公开(公告)日：2023-11-30

申请号：US18245907

申请日：2021-10-04

Applicant: OMYA INTERNATIONAL AG

Inventor： Samuel RENTSCH ,  Matthias WELKER ,  Joris BARANGER

IPC: C08K9/04 ,  C08L23/06 ,  C08J3/22

CPC classification number: C08K9/04 ,  C08L23/06 ,  C08J3/223 ,  C08L2205/025 ,  C08L2207/066 ,  C08K2201/005 ,  C08K2201/006 ,  C08J2323/06 ,  C08J2323/12 ,  C08L2207/062 ,  C08L2207/20

Abstract: The present invention relates to a filled polymer composition comprising polyethylene, polypropylene and an ultrafine calcium carbonate-containing filler material surface-treated with a surface-treatment agent, which has a total amount of carbon atoms from C4 to C34 and comprises at least one carboxyl group and/or a derivative thereof. The present invention further relates to a process for producing said filled polymer composition, the use of the surface-treated calcium carbonate-containing filler material for improving the mechanical properties of a polymer composition comprising polyethylene and polypropylene, as well as an article comprising the inventive filled polymer composition.

公开(公告)号：US20230383083A1

公开(公告)日：2023-11-30

申请号：US18028356

申请日：2021-09-21

Applicant: Cabot Corporation

Inventor： Eugene N. Step ,  John K. Foster ,  Ibrahim Sendijarevic ,  Vahid Sendijarevic

IPC: C08J9/12 ,  C08G18/12 ,  C08G18/18 ,  C08G18/32 ,  C08G18/76 ,  C08K9/06 ,  C08J9/00

CPC classification number: C08J9/125 ,  C08G18/12 ,  C08G18/1833 ,  C08G18/1808 ,  C08G18/3275 ,  C08G18/7671 ,  C08K9/06 ,  C08J9/0066 ,  C08G2110/0008 ,  C08G2110/005 ,  C08G2110/0058 ,  C08K2201/006 ,  C08J2201/022 ,  C08J2203/10 ,  C08J2205/06 ,  C08J2375/12

Abstract: A flexible polyurethane foam comprises up to 10 wt % of a fumed silica having a surface area from 50 to 150 m2/g, wherein the fumed silica has C1-C3 alkylsilyl groups at its surface, the flexible polyurethane foam exhibiting has a resilience of at least 40%, for example, from 40% to 70%, a dry compression set no greater than 15%, for example, from 3% to 15%, or both. Alternatively in addition, the flexible polyurethane foam may have a compression force deflection at 50% as measured by ASTM D3574 that is at least 30%, for example, at least 50%, at least 70%, or from 30% to 155%, greater than a flexible polyurethane foam having the same composition but with polyol replacing the silica.

公开(公告)号：US11820172B2

公开(公告)日：2023-11-21

申请号：US16614318

申请日：2018-04-11

Applicant: The Yokohama Rubber Co., LTD.

Inventor： Hiroki Sugiura

IPC: B60C1/00 ,  C08K3/011 ,  B60C11/03 ,  C08K3/04 ,  C08K3/06 ,  C08L7/00 ,  C08L9/00 ,  C08L25/10

CPC classification number: B60C1/0016 ,  B60C11/03 ,  C08K3/011 ,  C08K3/04 ,  C08K3/06 ,  C08L7/00 ,  C08L9/00 ,  C08L25/10 ,  B60C2011/0355 ,  C08K2201/006 ,  C08L2205/03

Abstract: A pneumatic tire comprises a tread rubber with a groove depth at a shoulder portion that comes into contact with a road surface of 10 mm or greater. A rubber composition of the tread rubber contains: 60 to 70 parts by mass of carbon black having a nitrogen adsorption specific surface area of 70 to 130 m2/g, 0.5 parts or greater by mass of sulfur, and a vulcanization accelerator per 100 parts by mass of diene rubber including 50 to 70 mass % of styrene-butadiene rubber, 20 to 30 mass % of butadiene rubber, and 10 to 30 mass % of natural rubber. The diene rubber has an average glass transition temperature of −65° C. or lower. A ratio of a compounded amount of the vulcanization accelerator to a compounded amount of the sulfur is 1.0 to 1.3. The tread rubber has a rubber hardness of 65 to 70 at 20° C.

公开(公告)号：US20230365797A1

公开(公告)日：2023-11-16

申请号：US18026028

申请日：2021-09-09

Applicant: DENKA COMPANY LIMITED

Inventor： Toru ARAI ,  Azusa YAGI ,  Suguru ONUKI ,  Shota YAMAMOTO

IPC: C08L25/08 ,  C08F212/08 ,  C08F210/02 ,  C08K7/18 ,  C08L23/08 ,  C08J5/18 ,  H01B3/44

CPC classification number: C08L25/08 ,  C08F212/08 ,  C08F210/02 ,  C08K7/18 ,  C08L23/0838 ,  C08J5/18 ,  H01B3/441 ,  C08F2800/20 ,  C08K2201/006 ,  C08L2205/025 ,  C08L2203/30 ,  C08J2325/08 ,  C08J2425/08 ,  C08J2323/08

Abstract: A composition comprises: a resin component including an olefin-aromatic vinyl compound-aromatic polyene copolymer satisfying all the following conditions (1) to (4): (1) a number average molecular weight of the copolymer is 500 or more and 100000 or less; (2) the aromatic vinyl compound monomer is an aromatic vinyl compound having 8 or more and 20 or less carbon atoms, and a content of a unit of the aromatic vinyl compound monomer is 0 mass % or more and 70 mass % or less; (3) the aromatic polyene is one or more selected from polyenes having 5 or more and 20 or less carbon atoms and having a plurality of vinyl groups and/or vinylene groups in the molecule, and a content of the vinyl groups and/or the vinylene groups derived from the unit of the aromatic polyene is 1.5 pieces or more and less than 20 pieces per number average molecular weight; and (4) the olefin is one or more selected from olefins having 2 or more and 20 or less carbon atoms, and a total of units of the olefin monomer, the aromatic vinyl compound monomer, and the aromatic polyene monomer is 100 mass %; and a surface-treated silica. The volume ratio between the resin component and the silica is in the range of 98 to 15:2 to 85. A cured product of the composition has a value of the dielectric tangent obtained by resonator method at a measurement frequency of 10 GHz and/or a measurement frequency range of 25 GHz to 40 GHz of 1.2×10−3 or less and a storage elastic modulus at 250° C. in the range of 10 MPa or more and 10 GPa or less.

公开(公告)号：US11814504B2

公开(公告)日：2023-11-14

申请号：US17726502

申请日：2022-04-21

Applicant: Milliken & Company

Inventor： Darin Dotson ,  Xiaoyou Xu ,  Hua Sun ,  Chi-Chun Tsai ,  Corey Williams

IPC: C08K5/5317 ,  C08K5/00

CPC classification number: C08K5/5317 ,  C08K5/0083 ,  C08K2201/006 ,  C08K5/5317 ,  C08L23/12

Abstract: A polymer composition comprises a polypropylene polymer and a salt of a branched alkyl phosphonic acid.