公开(公告)号：US11926637B2

公开(公告)日：2024-03-12

申请号：US17287336

申请日：2019-10-21

Applicant: RIMTEC Corporation

Inventor： Toshiyuki Oshiki ,  Michiru Kamada

IPC: C07F11/00 ,  C08G61/08

CPC classification number: C07F11/005 ,  C08G61/08 ,  C08G2261/228 ,  C08G2261/3325 ,  C08G2261/418

Abstract: The present invention provides a metal-oxo complex represented by the following general formula (1),






wherein in the general formula (1) above, “M” represents a molybdenum atom or a tungsten atom; “A” represents a carbon atom, a silicon atom, a germanium atom, a tin atom or a lead atom; X1 and X2 each independently represent a halogen atom; R1 to R5 each independently represent a hydrogen atom, a straight or branched chain alkyl group that is substituted or unsubstituted and has 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; each of R1 to R3 may be bonded to one another to form a ring.

公开(公告)号：US11597797B2

公开(公告)日：2023-03-07

申请号：US16405159

申请日：2019-05-07

Applicant: RIMTEC CORPORATION

Inventor： Michiru Kamada

IPC: C08G61/06 ,  C08G61/08 ,  C08K5/06 ,  B29C45/18 ,  B29C45/76 ,  B29K55/00

Abstract: The present invention provides: a reaction injection molding liquid mixture comprising a norbornene-based monomer, a metathesis polymerization catalyst that includes tungsten as a center metal, an activator, and an ether compound represented by a formula (1), wherein R1 to R4 are independently an alkyl group having 1 to 6 carbon atoms, the reaction injection molding liquid mixture comprising the activator and the ether compound in a molar ratio (ether compound/activator) of 0.7/1 to 30/1; a method for producing a reaction injection molded product comprising a reaction injection molding step that includes subjecting the reaction injection molding liquid mixture according to any one of claims 1 to 4 to bulk polymerization inside a mold; a reaction injection molded product obtained using the method for producing a reaction injection molded product. Consequently, the present invention provides: a reaction injection molding liquid mixture that makes it possible to obtain a reaction injection molded product that has an excellent surface (surface state) and exhibits excellent strength while preventing a situation in which the resin remains on the surface of the mold when the resin is removed from the mold, a method for producing a reaction injection molded product using the same, and a reaction injection molded product obtained using the method.

公开(公告)号：US11053366B2

公开(公告)日：2021-07-06

申请号：US16069288

申请日：2017-01-16

Applicant: RIMTEC Corporation

Inventor： Masaki Takeuchi

IPC: C08J5/24 ,  B29C70/48 ,  C08F232/08 ,  C08J5/04 ,  C08G61/08 ,  C08J5/08 ,  C08K5/14 ,  C08G18/22 ,  C08G18/62 ,  C08G18/76 ,  B29K33/04 ,  B29K75/00

Abstract: The present invention relates to polymerizable composition containing a cycloolefin monomer, a metathesis polymerization catalyst, a radical generator, a diisocyanate compound, and a polyfunctional (meth)acrylate compound. The composite material produced by using a polymerizable composition of the present invention has excellent mechanical strength and does not cause odor.

公开(公告)号：US20190169329A1

公开(公告)日：2019-06-06

申请号：US16266378

申请日：2019-02-04

Applicant: RIMTEC CORPORATION

Inventor： Nobuto Kamei

IPC: C08F132/08 ,  C08G61/08 ,  H01L23/29

Abstract: The present invention relates to a norbornene-based crosslinked polymer containing at least one member selected from the group consisting of dicyclopentadiene-based monomer units, tetracyclododecene-based monomer units, and tricyclopentadiene-based monomer units in an amount of 50% by mass or more, wherein the norbornene-based crosslinked polymer has a glass transition temperature of 240° C. or higher. Further, the present invention relates to a method for producing a norbomene-based crosslinked polymer as defined above, including step (1): heating a blend containing at least one member of the above monomer components, and a metathesis polymerization catalyst to a temperature lower than a deactivation temperature of the metathesis polymerization catalyst to carry out a primary curing; and step (2): heating a cured product obtained in the step (1) to a temperature equal to or higher than the deactivation temperature of the above metathesis polymerization catalyst to carry out a secondary curing.

公开(公告)号：US20170114160A1

公开(公告)日：2017-04-27

申请号：US15319059

申请日：2015-06-19

Applicant: RIMTEC CORPORATION

Inventor： Michiru Kamada

IPC: C08F32/08 ,  B29C45/00 ,  B29B7/00 ,  C08J5/00

CPC classification number: C08F32/08 ,  B29B7/002 ,  B29C45/0001 ,  B29C67/246 ,  B29K2045/00 ,  C08G61/08 ,  C08G2261/3324 ,  C08J5/00 ,  C08J2345/00

Abstract: A liquid formulation for reaction injection molding for polymerizing a norbornene-based monomer in the presence of a metathesis polymerization catalyst including tungsten as a center metal, the liquid formulation containing a norbornene-based monomer, an activator of the catalyst, and an ether compound represented by formula (1): the liquid formulation being obtained by mixing the norbornene-based monomer and the activator in the presence of at least the ether compound. The liquid formulation for reaction injection molding of the present invention can be suitably used in the field of manufacture of reaction injection-molded articles. Further, the reaction injection-molded article of the present invention has excellent mechanical properties and finishing of surface of the manufactured articles, so that the reaction injection-molded article can be suitably used in applications of automobile parts, parts of housing facilities, and the like.

公开(公告)号：US11879029B2

公开(公告)日：2024-01-23

申请号：US17630573

申请日：2020-07-31

Applicant: RIMTEC Corporation

Inventor： Nobuhito Kamei

IPC: C08F236/20 ,  B32B15/082 ,  B32B15/085 ,  B32B15/20 ,  B32B27/20 ,  B32B27/30 ,  B32B27/32 ,  C09J147/00

CPC classification number: C08F236/20 ,  B32B15/082 ,  B32B15/085 ,  B32B15/20 ,  B32B27/20 ,  B32B27/308 ,  B32B27/325 ,  C09J147/00 ,  B32B2307/306

Abstract: Provided is a polymerizable composition comprising a cycloolefin-based monomer having a specific structure, a silane coupling agent having at least one hydrocarbon group having a norbornene structure, and a metathesis polymerization catalyst.

公开(公告)号：US20240002585A1

公开(公告)日：2024-01-04

申请号：US18017801

申请日：2021-07-27

Applicant: RIMTEC CORPORATION

Inventor： Nobuhito Kamei ,  Shingo Shochiku

IPC: C08G61/08

CPC classification number: C08G61/08

Abstract: Provided is a cycloolefin resin cured product formed through bulk polymerization of a polymerizable composition comprising a cycloolefin monomer and a metathesis polymerization catalyst, wherein the cycloolefin monomer includes a norbornene-based monomer (a1) and a monocyclic cycloolefin (a2), and the cycloolefin resin cured product has an elongation at break at 23° C. of 30% or more.

公开(公告)号：US20230322978A1

公开(公告)日：2023-10-12

申请号：US18021214

申请日：2021-08-25

Applicant: RIMTEC Corporation

Inventor： Naoki Fukumoto ,  Nobuhito Kamei

IPC: C08F32/08

CPC classification number: C08F32/08

Abstract: Provided is a cycloolefin resin cured product having oxygen barrier properties prepared through bulk polymerization of a polymerizable composition comprising a cycloolefin monomer and a metathesis polymerization catalyst, wherein the cycloolefin monomer includes a norbornene-based monomer (a), the polymerizable composition comprises an antioxidant in an amount of 0.3% by mass or less, and the cycloolefin resin cured product has an oxygen permeability at 23° C. of less than 50 mL/m2·day·atm (100 μm).

公开(公告)号：US11710590B2

公开(公告)日：2023-07-25

申请号：US16609375

申请日：2018-05-10

Applicant: RAILWAY TECHNICAL RESEARCH INSTITUTE ,  RIMTEC CORPORATION

Inventor： Katsutoshi Mizuno ,  Minoru Tanaka ,  Masaki Takeuchi

IPC: H01F6/06 ,  C08G61/08 ,  H01F6/04 ,  C07F15/00 ,  G01R33/12 ,  H01F6/00

CPC classification number: H01F6/06 ,  C08G61/08 ,  H01F6/04 ,  C07F15/0046 ,  C08G2261/3322 ,  C08G2261/3324 ,  G01R33/1238 ,  H01F6/006

Abstract: A superconducting coil device (10) includes: a coil case (20) housing a superconducting coil (30); a superconducting coil (30) housed in the coil case (20); and a resin part (50) formed of a polymer (51) filled in a gap between an inner wall of the coil case (20) and the superconducting coil (30). The resin part (50) is formed of a polymer (51) obtained by polymerizing a polymerizable composition containing a first monomer having a norbornene ring structure.

公开(公告)号：US20220212381A1

公开(公告)日：2022-07-07

申请号：US17604543

申请日：2020-04-20

Applicant: RIMTEC Corporation

Inventor： Masaki Takeuchi

IPC: B29C45/16 ,  B29C39/12 ,  B29C70/08 ,  B29C70/00

Abstract: Provided is a method for producing a decorated cycloolefin resin molded article, the method comprising curing a gel coat composition and polymerizing a cycloolefin polymerizable composition containing a radical generator while the gel coat composition is in contact with the cycloolefin polymerizable composition, thereby containing a decorated cycloolefin resin molded article including a gel coat and a cycloolefin resin layer adhering to each other.