公开(公告)号：US20240352200A1

公开(公告)日：2024-10-24

申请号：US18034419

申请日：2021-10-21

Applicant: TOKUYAMA CORPORATION

Inventor： Manabu Kondou ,  Masahiro Nakamura

IPC: C08J3/20 ,  C08J3/22 ,  C08J3/24 ,  C08K3/36 ,  C08K5/548 ,  C08K9/04 ,  C08L7/00

CPC classification number: C08J3/203 ,  C08J3/242 ,  C08K3/36 ,  C08K5/548 ,  C08K9/04 ,  C08L7/00 ,  C08J3/22 ,  C08J2307/00 ,  C08J2309/00 ,  C08K2201/006 ,  C08L2310/00

Abstract: A method for producing a rubber composition includes: applying a compression process to a fumed silica having a BET specific surface area of 200 m2/g or more to obtain a compressed fumed silica having a tap density of 200 g/L or more; and kneading the compressed fumed silica and diene rubber. A fumed silica for rubber composition is obtained by a surface treatment with a mercapto-thiocarboxylate oligomer, and has a tap density of 200 g/L or more and a BET specific surface area of 200 m2/g or more. A rubber composition contains a compressed fumed silica having a tap density of 200 g/L or more and a BET specific surface area of 200 m2/g or more; a natural rubber; and a mercapto-thiocarboxylate oligomer.

公开(公告)号：US20240327689A1

公开(公告)日：2024-10-03

申请号：US18743905

申请日：2024-06-14

Applicant: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC

Inventor： SERGIO GRUNDER ,  STEFAN SCHMATLOCH ,  JOEL AMOS KUNZ

IPC: C09J175/08 ,  C08G18/12 ,  C08G18/20 ,  C08G18/24 ,  C08G18/48 ,  C08G18/50 ,  C08G18/73 ,  C08G18/76 ,  C08G18/79 ,  C08K3/26 ,  C08K3/34 ,  C08K9/04

CPC classification number: C09J175/08 ,  C08G18/12 ,  C08G18/2063 ,  C08G18/242 ,  C08G18/4816 ,  C08G18/482 ,  C08G18/4829 ,  C08G18/4841 ,  C08G18/4845 ,  C08G18/5024 ,  C08G18/73 ,  C08G18/7621 ,  C08G18/798 ,  C08K3/26 ,  C08K3/346 ,  C08K9/04 ,  C08G2170/00 ,  C08K2003/265 ,  C08K2201/005 ,  C08K2201/006 ,  C09J2203/354 ,  C09J2301/162 ,  C09J2301/30 ,  C09J2423/106 ,  C09J2423/108 ,  C09J2475/00

Abstract: A two-part polyurethane adhesive exhibits excellent adhesion to low surface energy substrates such as polypropylene. The adhesive consists of a polyol component and a polyisocyanate component that are combined and cured to form the adhesive bond. The polyol component is characterized in containing a monoalcohol that has a molecular weight of 100 to 2000. The presence of the monoalcohol promotes strong bonding and a cohesive failure mode that is preferred in vehicular applications.

公开(公告)号：US20240308861A1

公开(公告)日：2024-09-19

申请号：US18278667

申请日：2022-03-01

Applicant: Tokuyama Corporation

Inventor： Shota Daiki ,  Kyouichi Fujinami ,  Teruhiko Nawata ,  Satoru Yoshida

IPC: C01B35/14 ,  C08K3/38

CPC classification number: C01B35/146 ,  C08K3/38 ,  C01P2002/10 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/60 ,  C01P2006/12 ,  C01P2006/19 ,  C08K2003/385 ,  C08K2201/003 ,  C08K2201/006 ,  C08K2201/016

Abstract: Provided are hexagonal boron nitride aggregated particles and hexagonal boron nitride powder, each of which can be filled into a resin to produce a resin composition with an extremely high dielectric strength and thermal conductivity, and to reduce the density of the resin composition. Provided are hexagonal boron nitride aggregated particles, in which aggregated particles of hexagonal boron nitride primary particles have a longer diameter ranging from 5 to 10 μm, a longer diameter/shorter diameter ranging from 1.0 to 1.3, and a circularity within a range from 0.3 to 0.8, and a maximum diameter of primary particles which can be confirmed on the surface of the aggregated particles on an SEM observation image at 10,000 magnification is 4 μm or less. Provided is a hexagonal boron nitride powder including aggregated particles of hexagonal boron nitride primary particles, in which a particle size (D50) at a cumulative volume frequency of 50% in a particle size distribution as measured by a wet laser diffraction particle size distribution analysis is from 5 to 150 μm, a volume-based median diameter of pores as measured by a mercury porosimetry is 3.0 μm or less, and a content of impurity elements is 500 ppm or less.

公开(公告)号：US20240287291A1

公开(公告)日：2024-08-29

申请号：US18585067

申请日：2024-02-23

Applicant: Apollo Tyres Global R&D B.V.

Inventor： Anup MONDAL ,  Mohamed THARIK

IPC: C08L9/00 ,  B60C1/00 ,  C08K3/013 ,  C08K3/36 ,  C08K5/00 ,  C08K5/548

CPC classification number: C08L9/00 ,  B60C1/0016 ,  C08K3/013 ,  C08K3/36 ,  C08K5/0025 ,  C08K5/548 ,  B60C2200/04 ,  C08K2201/006 ,  C08L2205/025 ,  C08L2205/035

Abstract: A cross-linkable rubber composition may include, per hundred parts by weight of rubber (phr): 100 phr of a blend of a natural rubber (NR), a polybutadiene rubber (BR), and first and second solution polymerized styrene-butadiene rubbers (SSBR); a silica filler, a resin, and ≥1 phr to ≤20 phr of first and second coupling agents, wherein the first coupling agent is a mercaptosilane and the second coupling agent is selected from a disulfide silane, a tetrasulfide silane, or a combination thereof.

公开(公告)号：US20240279065A1

公开(公告)日：2024-08-22

申请号：US18567300

申请日：2022-05-24

Applicant: JEIO CO. LTD.

Inventor： Yo Sub KANG ,  Tae Woong KONG

IPC: C01B32/174 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C08K3/04 ,  C09D7/20 ,  C09D7/40 ,  C09D7/61 ,  C09D17/00 ,  H01G11/36 ,  H01G11/86 ,  H01M4/62

CPC classification number: C01B32/174 ,  C01B32/162 ,  C09D7/20 ,  C09D7/61 ,  C09D7/70 ,  C09D17/002 ,  C09D17/004 ,  H01G11/36 ,  H01G11/86 ,  H01M4/625 ,  B82Y30/00 ,  B82Y40/00 ,  C01B2202/22 ,  C01B2202/32 ,  C01B2202/36 ,  C01P2004/03 ,  C01P2006/22 ,  C08K3/041 ,  C08K2201/003 ,  C08K2201/006 ,  C08K2201/011

Abstract: Provided is a method for preparing a carbon nanotube dispersion including preparing a carbon nanotube bundle; post-processing the carbon nanotube bundle to reduce an average length of the carbon nanotube bundle to 50 μm or less; and dispersing the post-processed carbon nanotube bundle in a solution.

公开(公告)号：US20240254313A1

公开(公告)日：2024-08-01

申请号：US18560463

申请日：2022-05-06

Applicant: DENKA COMPANY LIMITED

Inventor： Teruhiro AIKYO ,  Takaaki MINAMIKAWA ,  Yasuaki HATAYAMA ,  Naoto HAYASHI

IPC: C08K3/36 ,  C01B33/12 ,  H01L23/29

CPC classification number: C08K3/36 ,  C01B33/12 ,  H01L23/295 ,  C01P2006/12 ,  C08K2201/005 ,  C08K2201/006

Abstract: Provided are a silica powder with a particle size of 2.0 μm or less which does not readily aggregate, has favorable handling, and readily disperses when mixed with a resin; and a resin composition and a semiconductor sealing material comprising the silica powder.
The silica powder has a volume-based cumulative size (D50) of 2.0 μm or less and a maximum particle size (Dmax) of 5.0 μm or less as measured by a grind gauge with the following method.
(Measurement Method)
The degree of dispersion of the silica powder in the epoxy resin is evaluated in a resin composition obtained by adding 67 parts by mass of the silica powder to 100 parts by mass of a bisphenol F-type liquid epoxy resin with a distribution map method using a grind gauge and the maximum particle size (Dmax) is measured in accordance with JIS K 5600-2-5. Further, the same evaluation is performed five times and the average value thereof is employed.

公开(公告)号：US20240247130A1

公开(公告)日：2024-07-25

申请号：US18561809

申请日：2022-05-19

Applicant: Suncoal Industries GmbH

Inventor： Jacob Podschun ,  Gerd Schmaucks ,  Tobias Wittmann ,  Bernhard Schwaiger

IPC: C08K9/06 ,  B60C1/00 ,  C08K3/06 ,  C08K3/22 ,  C08K5/14 ,  C08L7/00 ,  C08L9/00 ,  C08L97/00

CPC classification number: C08K9/06 ,  B60C1/0008 ,  B60C1/0016 ,  B60C1/0025 ,  C08K3/06 ,  C08K3/22 ,  C08K5/14 ,  C08L7/00 ,  C08L9/00 ,  C08L97/005 ,  C08K2003/2296 ,  C08K2201/006

Abstract: The present invention relates to an organic filler, wherein a covalent bonding of at least one organic modifier to the organic filler has been effected at least via a part of the oxygen atoms of at least one functional group of the filler which is selected from phenolic OH groups, phenolate groups, aliphatic OH groups, carboxylic acid groups, carboxylate groups and mixtures thereof, a rubber composition comprising at least one rubber and at least the filler mentioned hereinabove, a vulcanizable rubber composition that additionally comprises a vulcanization system, a vulcanized rubber composition obtainable therefrom, as well as a use of the filler mentioned hereinabove for the production of (vulcanizable) rubber compositions for employment in the production of tires, preferably pneumatic tires and solid tires, preferably for the tread, sidewall and/or inner liner thereof, respectively, and/or for employment in the production of technical rubber articles, preferably profiles, seals, dampers and/or hoses.

公开(公告)号：US12043772B2

公开(公告)日：2024-07-23

申请号：US17537751

申请日：2021-11-30

Applicant: Henkel AG & CO. KGaA

Inventor： Krunal Trivedi ,  Nishant Tale ,  Jayesh P. Shah

IPC: C09J4/06 ,  B01J31/02 ,  C08F220/18 ,  C08F220/34 ,  C08K3/04

CPC classification number: C09J4/06 ,  B01J31/0201 ,  C08F220/18 ,  C08F220/34 ,  C08K3/042 ,  C08K2201/005 ,  C08K2201/006

Abstract: The present invention relates to two-part cyanoacrylate adhesive comprising a) a first part comprising a cyanoacrylate component; a peroxide catalyst; a stabilizer and a thickener; and b) a second part comprising a (meth)acrylate component; a graphene oxide; an adhesion promoter; a metal salt; and a fumed silica. Adhesive according to the present invention provides good performance as structural adhesive, good adhesion strength, good open and fix times, good tensile lap shear strength and good peel strength.

公开(公告)号：US20240209212A1

公开(公告)日：2024-06-27

申请号：US18557240

申请日：2022-04-27

Applicant: IMERTECH SAS

Inventor： Alexandra JAKOB ,  Théodore INEICH

IPC: C09C1/40 ,  C08J3/22 ,  C08K3/34

CPC classification number: C09C1/405 ,  C08J3/22 ,  C08K3/34 ,  C01P2004/61 ,  C01P2006/12 ,  C08J2323/12 ,  C08K2201/006

Abstract: A mica particulate has: (a) a BET specific surface area no less than about 4.5 m2/g; and (b) a lamellarity index no less than about 2.5. A method for preparing the mica particulate comprises classifying a ground mica material, such as a wet ground mica material.

公开(公告)号：US20240199772A1

公开(公告)日：2024-06-20

申请号：US18065659

申请日：2022-12-14

Applicant: The Goodyear Tire & Rubber Company

Inventor： Marie-Laure Stéphanie Milan ,  Jérôme Joel Daniel Delville ,  Pascal Patrick Steiner

IPC: C08F36/06 ,  B60C1/00 ,  C08F36/08 ,  C08F212/08 ,  C08K3/36 ,  C08K5/01 ,  C08K5/548

CPC classification number: C08F36/06 ,  B60C1/0016 ,  C08F36/08 ,  C08F212/08 ,  C08K3/36 ,  C08K5/01 ,  C08K5/548 ,  B60C2200/04 ,  C08K2201/006

Abstract: The present invention is directed to a rubber composition comprising 30 to 80 phr of a first styrene butadiene rubber having a glass transition temperature lower than −50° C.; 10 to 40 phr of a second styrene butadiene rubber having a glass transition temperature higher than −45° C.; and 10 to 30 phr of a further rubber selected from the list of synthetic polyisoprene, natural rubber and polybutadiene. Furthermore, the rubber composition comprises 80 phr to 140 phr of silica and 40 phr to 90 phr of a hydrocarbon resin having a glass transition temperature of at least 30° C. and being selected from the group of C5 resins and C5/C9 resins. The present invention is also directed to a tire comprising such a rubber composition.