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公开(公告)号：US12234386B2
公开(公告)日：2025-02-25
申请号：US17297624
申请日：2019-11-27
Applicant: Sunstar Engineering Inc.
Inventor： Hiroki Nishimura , Daisuke Umemoto , Takeharu Miyamoto
Abstract: The present invention provides an adhesive composition which is a primerless urethane-based adhesive and has high adhesive force with respect to a polyolefin-based resin. An adhesive composition according to the present invention is a two-liquid type urethane-based adhesive composition comprising: a main agent which comprises (A) a urethane prepolymer having an isocyanate group at the end thereof, (B) a polyfunctional isocyanate compound having an alkoxysilyl group which can be obtained through a reaction of a silane compound having at least two alkoxysilyl groups in one molecule and a polyisocyanate having an isocyanate group at the end thereof and (C1) a first curing catalyst; and a curing agent which comprises (D) a hydrophobic polyol and (C2) a second curing catalyst.
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公开(公告)号：USD966485S1
公开(公告)日：2022-10-11
申请号：US29744285
申请日：2020-07-28
Applicant: SUNSTAR ENGINEERING INC.
Designer： Issei Oura
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公开(公告)号：US20220186799A1
公开(公告)日：2022-06-16
申请号：US17441069
申请日：2020-02-04
Applicant: SUNSTAR ENGINEERING INC.
Inventor： Satoshi KUBOTA , Yuki MURAYAMA
Abstract: A rotation transmission disc includes: an outer circumferential portion on which a load acts when rotation is transmitted; a center opening portion formed inside the outer circumferential portion; and a plurality of attachment holes for attachment of the rotation transmission disc 1 to a rotating element. A first crosspiece portions are formed in each of ranges of divided angles formed by two adjacent attachment holes with respect to a center of the rotation transmission disc. The first crosspiece portion extends from a load point, which is an intersection between a straight line extending in a radial direction to internally divide the divided angles at a predetermined angular ratio and a load radius position of the outer circumferential portion, to one of the attachment holes forming the divided angles. The second crosspiece portion extends from the load point to the other attachment hole of the attachment holes forming the divided angles.
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公开(公告)号：US11359046B2
公开(公告)日：2022-06-14
申请号：US16019725
申请日：2018-06-27
Applicant: Sunstar Engineering Inc.
Inventor： Kiichi Yamashita , Tatsuya Wakamori
IPC: C08G18/32 , C08G18/38 , C08G18/48 , C08G18/50 , C08G18/58 , C08G18/64 , C08G18/66 , C08G18/76 , C08J9/12
Abstract: An object of the present invention is to provide a polyurethane composition, in which reduction in the strength of the foam is suppressed when the foam has been greatly deformed. The present invention relates to a polyurethane composition comprising a base resin and a curing agent, wherein the base resin comprises a compound (A-1) comprising a polyalkylene skeleton comprising neither an aromatic skeleton nor an alicyclic skeleton, and having two or more functional groups having an active hydrogen atom, a compound (A-2) comprising an aromatic skeleton and/or alicyclic skeleton, and having two or more functional groups having an active hydrogen atom, a blowing agent (B), and an amine-based catalyst (C); a polyurethane foam therefrom; and a method for soundproofing and reinforcing a vehicle.
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公开(公告)号：US20220089871A1
公开(公告)日：2022-03-24
申请号：US17426091
申请日：2020-02-05
Applicant: Sunstar Engineering Inc.
Inventor： Takuro OMACHI , Tomohiro YAMAGUCHI
Abstract: Excellent adhesiveness to resin substrates is provided even with a reduced pretreatment, preferably without a pretreatment, by a curable composition comprising an urethane prepolymer (A) having a polyoxyalkylene backbone and an isocyanate group, and an urethane prepolymer (B) having a polycarbonate and/or polyester backbone and an isocyanate group.
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Patent Agency Ranking
公开(公告)号：US11261358B2
公开(公告)日：2022-03-01
申请号：US16639115
申请日：2018-08-03
Applicant: Sunstar Engineering Inc.
Inventor： Kazunobu Takami , Takatomi Nishida
IPC: C09J163/04 , C08G59/24 , C08G59/50 , C08G59/68
Abstract: The present invention provides an epoxy resin-based curable composition which may be used as a structural adhesive for an automobile. Particularly, the present invention provides an epoxy resin-based curable composition having excellent low-temperature curability, while maintaining good storage stability and good adhesion.
The present invention relates to a curable composition comprising an epoxy resin, a urea-based curing accelerator (A) and an amine-based curing agent (B) having a pyrazine ring.-
公开(公告)号：US20220025233A1
公开(公告)日：2022-01-27
申请号：US17297624
申请日：2019-11-27
Applicant: Sunstar Engineering Inc.
Inventor： Hiroki NISHIMURA , Daisuke UMEMOTO , Takeharu MIYAMOTO
Abstract: The present invention provides an adhesive composition which is a primerless urethane-based adhesive and has high adhesive force with respect to a polyolefin-based resin. An adhesive composition according to the present invention is a two-liquid type urethane-based adhesive composition comprising: a main agent which comprises (A) a urethane prepolymer having an isocyanate group at the end thereof, (B) a polyfunctional isocyanate compound having an alkoxysilyl group which can be obtained through a reaction of a silane compound having at least two alkoxysilyl groups in one molecule and a polyisocyanate having an isocyanate group at the end thereof and (C1) a first curing catalyst; and a curing agent which comprises (D) a hydrophobic polyol and (C2) a second curing catalyst.
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公开(公告)号：USD935008S1
公开(公告)日：2021-11-02
申请号：US29717603
申请日：2019-12-18
Applicant: SUNSTAR ENGINEERING INC.
Designer： Issei Oura
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公开(公告)号：US20200263750A1
公开(公告)日：2020-08-20
申请号：US16492850
申请日：2018-03-14
Applicant: JFE PRECISION CORPORATION , Sunstar Engineering Inc.
Inventor： Hoshiaki TERAO , Raita WADA , Tsuyoshi NAKATSUJI , Yoshinori SHINAGAWA
IPC: F16D69/02 , F16D65/092 , C22C19/03
Abstract: A sintered friction material for brake having a high friction coefficient, with which reduction of the friction coefficient is prevented at high temperature and stable brake performance is maintained. It comprises: a metal matrix of Ni or Ni+Fe (small amount); a solid lubricant (a); and a friction adjusting material (b) including: metal or alloy particles (b1) having an average particle size of 50 μm or more and containing at least one selected from W, Mo, Cr, and FeW; and inorganic particles (b2) containing at least one selected from oxides, nitrides, carbides, and intermetallic compounds. An average particle size db1 of b1 and an average particle size db2 of b2 satisfy db1
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公开(公告)号：US20200208029A1
公开(公告)日：2020-07-02
申请号：US16639115
申请日：2018-08-03
Applicant: Sunstar Engineering Inc.
Inventor： Kazunobu TAKAMI , Takatomi NISHIDA
IPC: C09J163/04 , C08G59/24 , C08G59/68 , C08G59/50
Abstract: The present invention provides an epoxy resin-based curable composition which may be used as a structural adhesive for an automobile. Particularly, the present invention provides an epoxy resin-based curable composition having excellent low-temperature curability, while maintaining good storage stability and good adhesion.The present invention relates to a curable composition comprising an epoxy resin, a urea-based curing accelerator (A) and an amine-based curing agent (B) having a pyrazine ring.
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