Patents Assigned to RIMTEC Corporation
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Publication number: 20190169329Abstract: 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.Type: ApplicationFiled: February 4, 2019Publication date: June 6, 2019Applicant: RIMTEC CORPORATIONInventor: Nobuto Kamei
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Publication number: 20190031846Abstract: 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.Type: ApplicationFiled: January 16, 2017Publication date: January 31, 2019Applicant: RIMTEC CorporationInventor: Masaki Takeuchi
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Publication number: 20180319912Abstract: 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 norbornene-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.Type: ApplicationFiled: July 9, 2018Publication date: November 8, 2018Applicant: RIMTEC CORPORATIONInventor: Nobuto Kamei
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Publication number: 20180022882Abstract: A resin molded article wherein a surface of a norbornene-based crosslinked polymer comprising 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 is coated with a polyamide-imide layer, and a method for producing the same. Since the resin molded article of the present invention has highly excellent heat resistance and durability, the resin molded article can be suitably used in applications that require heat resistance such as engine cover applications for automobiles and the like, and electric insulation applications.Type: ApplicationFiled: March 14, 2016Publication date: January 25, 2018Applicant: RIMTEC CORPORATIONInventor: Nobuto Kamei
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Patent number: 9777086Abstract: A polymerizable composition comprised of a mixture of a norbornene-based monomer and a metathesis polymerization catalyst which is solidified by cooling is provided. Preferably, the norbornene-based monomer has a freezing point of 20° C. or more, more preferably the metathesis polymerization catalyst is a ruthenium-carbene complex. According to the present invention, it is possible to provide a polymerizable composition which is excellent in storage stability and which enables industrial production of small resin shaped articles which are excellent in stability of quality.Type: GrantFiled: September 25, 2013Date of Patent: October 3, 2017Assignee: RIMTEC CORPORATIONInventors: Naoki Nishioka, Nobuto Kamei
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Publication number: 20170144343Abstract: The invention relates to a field joint coating material based on a fast curable olefin liquid formulation and a process of making a field joint wherein this coating material is used.Type: ApplicationFiled: December 16, 2016Publication date: May 25, 2017Applicant: RIMTEC CORPORATIONInventors: Gilles Recher, Sylvain Allain, Frederic Demoutiez
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Publication number: 20170137565Abstract: The present invention relates to a gelation promoting agent when polymerizing a norbornene-based monomer in the presence of a metathesis polymerization catalyst, the gelation promoting agent obtained by mixing an activator of the metathesis polymerization catalyst and a norbornene-based monomer, wherein the gelation promoting agent consists essentially of a mixture of only two components of the activator and the above norbornene-based monomer; and a liquid formulation for reaction injection molding containing the gelation promoting agent. The gelation promoting agent of the present invention is added to a liquid formulation for reaction injection molding, thereby exhibiting effects that the gelation when the liquid formulation contacts a catalyst can be shortened.Type: ApplicationFiled: June 19, 2015Publication date: May 18, 2017Applicant: RIMTEC CORPORATIONInventor: Michiru Kamada
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Publication number: 20170114160Abstract: 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.Type: ApplicationFiled: June 19, 2015Publication date: April 27, 2017Applicant: RIMTEC CORPORATIONInventor: Michiru Kamada
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Publication number: 20170037202Abstract: The present invention relates to a method for producing a composite molded article having a flexural modulus at 150° C. of 25% or more of a flexural modulus at 23° C., including the steps of (1) placing glass fibers in a mold; (2) impregnating glass fibers with a polymerizable composition containing a cycloolefin monomer, a metathesis polymerization catalyst, a radical generator, and a compound represented by the general formula (I); (3) subjecting the above polymerizable composition with which the glass fibers are impregnated to a bulk polymerization to provide a composite molded article; and (4) demolding the composite molded article; and a composite molded article obtained by the above method. According to the method of the present invention, a composite molded article containing glass fibers, the composite molded article having excellent mechanical strength can be produced.Type: ApplicationFiled: December 17, 2014Publication date: February 9, 2017Applicant: RIMTEC CORPORATIONInventor: Masaki TAKEUCHI
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Publication number: 20160244540Abstract: 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 norbornene-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.Type: ApplicationFiled: September 19, 2014Publication date: August 25, 2016Applicant: RIMTEC CorporationInventor: Nobuto Kamei
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Publication number: 20150240007Abstract: A polymerizable composition comprised of a mixture of a norbornene-based monomer and a metathesis polymerization catalyst which is solidified by cooling is provided. Preferably, the norbornene-based monomer has a freezing point of 20° C. or more, more preferably the metathesis polymerization catalyst is a ruthenium-carbene complex. According to the present invention, it is possible to provide a polymerizable composition which is excellent in storage stability and which enables industrial production of small resin shaped articles which are excellent in stability of quality.Type: ApplicationFiled: September 25, 2013Publication date: August 27, 2015Applicant: RIMTEC CORPORATIONInventors: Naoki Nishioka, Nobuto Kamei
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Publication number: 20150080581Abstract: Improved catalysts useful in alkyne or olefin metathesis are made by bringing into contact a multi-coordinated metal complex comprising a multidentate Schiff base ligand, and one or more other ligands, with a selected activating compound under conditions such that at least partial cleavage of a bond between the metal and the multidentate Schiff base ligand of said metal complex occurs.Type: ApplicationFiled: November 25, 2014Publication date: March 19, 2015Applicant: RIMTEC CORPORATIONInventors: David SCHAUBROECK, Stijn MONSAERT, Nele LEDOUX, Francis Walter Cornelius VERPOORT, Renata A. DROZDZAK
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Patent number: 8927670Abstract: Improved catalysts useful in alkyne or olefin metathesis are made by bringing into contact a multi-coordinated metal complex comprising a multidentate Schiff base ligand, and one or more other ligands, with a selected activating compound under conditions such that at least partial cleavage of a bond between the metal and the multidentate Schiff base ligand of said metal complex occurs.Type: GrantFiled: August 18, 2006Date of Patent: January 6, 2015Assignee: RIMTEC CorporationInventors: David Schaubroeck, Stijn Monsaert, Nele Ledoux, Francis Verpoort, Renata Drozdzak
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Patent number: 8716364Abstract: Provided is a surface-coated reinforcing material which, when used in a fluid composition for reaction injection molding, causes substantially no increase in the viscosity of said fluid composition and can be well dispersed therein, and can improve the rigidity of an article obtained by reaction injection molding the same. The surface-coated reinforcing material is provided, on the surface of a reinforcing material, with laminated coating layers consisting of one or more coating layers (A), which comprise a silane coupling agent (I) having at least one hydrocarbon group having a norbornene structure, and one or more coating layers (B), which comprise a coupling agent other than the silane coupling agent (I) and/or a fatty acid.Type: GrantFiled: December 22, 2010Date of Patent: May 6, 2014Assignee: Rimtec CorporationInventor: Nobuhito Kamei
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Patent number: 8703888Abstract: The present invention relates to a catalytic system comprising a precatalyst, a precatalyst activator and an inhibitor. Further, the invention relates to the use of this catalytic system in ring-opening metathesis polymerization reactions.Type: GrantFiled: December 1, 2011Date of Patent: April 22, 2014Assignee: Rimtec CorporationInventors: Renata Drozdzak, Alexander Daemen
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Publication number: 20140035186Abstract: The invention relates to a field joint coating material based on a fast curable olefin liquid formulation and a process of making a field joint wherein this coating material is used.Type: ApplicationFiled: June 1, 2012Publication date: February 6, 2014Applicant: RIMTEC CORPORATIONInventors: Gilles Recher, Sylvain Allain, Frederic Demoutiez
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Publication number: 20130237675Abstract: The present invention relates to a catalytic system comprising a precatalyst, a precatalyst activator and an inhibitor. Further, the invention relates to the use of this catalytic system in ring-opening metathesis polymerisation reactions.Type: ApplicationFiled: December 1, 2011Publication date: September 12, 2013Applicant: RIMTEC CORPORATIONInventors: Renata Drozdzak, Alexander Daemen
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Patent number: 8519069Abstract: The present invention relates to a catalytic complex for olefin metathesis reactions, to a process for its preparation and to its use in olefin metathesis reactions, particularly in ring opening metathesis polymerisation (ROMP) reactions.Type: GrantFiled: July 7, 2010Date of Patent: August 27, 2013Assignee: RIMTEC CorporationInventor: Renata Drozdzak
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Patent number: 8487046Abstract: The present invention relates to a polycycloolefin (PCO) thermoset network assembly and a process for its preparation obtainable by polymerising a first reactive composition comprising a norbornene-type cycloolefin monomer in the presence of a Mo- or W-catalyst to obtain a PCO-Mo/W-network and polymerising a second reactive composition comprising a nor-bornene-type cycloolefin monomer in the presence of a Ru-catalyst on said PCO-Mo/W-network to obtain a PCO thermoset network assembly.Type: GrantFiled: September 26, 2008Date of Patent: July 16, 2013Assignee: RIMTEC CorporationInventors: Gilles Recher, Nicolas Lessart, Naoki Nishioka
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Patent number: 8338613Abstract: The invention relates to a process for the preparation of bidentate Schiff base catalysts containing a salicylaldimine-type ligand.Type: GrantFiled: September 17, 2009Date of Patent: December 25, 2012Assignee: RIMTEC CorporationInventors: Renata Drozdzak, Naoki Nishioka