Double Bond Between Ring Carbons In Each Of The Two Nitrogen Containing Hetero Rings (e.g., Bis-maleimides, Etc.) Patents (Class 548/521)
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Patent number: 10464050Abstract: A dehydration catalyst for preparing N-substituted maleimide, which may minimize formation of by-products, is reusable because its activity is not reduced significantly even after being reused several times, and may maintain its reaction activity for a long time, a preparation method thereof, and a method of preparing N-substituted maleimide, are provided.Type: GrantFiled: August 1, 2017Date of Patent: November 5, 2019Assignee: LG CHEM, LTD.Inventors: Ji Yeon Kim, Jun Seon Choi, Joo Young Cheon, Wang Rae Joe, Kyung Soo Kim
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Patent number: 10119001Abstract: Uncured epoxy resin for use in making prepreg for aerospace applications. The resin includes an epoxy resin component comprising difunctional epoxy resin, trifunctional epoxy resin and/or tetrafunctional epoxy resin and a sufficient amount of [3-(4-aminobenzoyl) oxyphenyl]4-aminobenzoate (3-ABOAB), as a curing agent, such that the uncured resin can be stored at room temperature of at least 6 weeks and wherein the uncured resin can be fully cured in no more than 2 hours at a temperature of between 175° C. and 185° C.Type: GrantFiled: August 4, 2016Date of Patent: November 6, 2018Assignees: HEXCEL CORPORATION, HEXCEL COMPOSITES LIMITEDInventors: Yen-Seine Wang, Chris Mason, Martin Simmons
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Publication number: 20150037270Abstract: Compositions, kits, and methods for repairing bonds, for example, disulfide bonds, in hair or on the skin are disclosed. The compositions provide improved conditioning benefit for dry hair or moisturize the skin. The compositions also provide a long lasting moisturized feel and smooth feel to the skin or hair, without feeling greasy. The compositions contain one or more compounds that covalently crosslink at least two thiol groups in the hair or on the skin. Use of the crosslinking compositions prevents reversion of the repaired bonds to their reduced (thiol) state, for at least one week, one month, six months, or one year, after a single application of the composition. Improved methods of styling hair, for example permanent hair waving, hair curling, and hair straightening are also provided.Type: ApplicationFiled: April 21, 2014Publication date: February 5, 2015Applicant: Liqwd, Inc.Inventors: Eric D. Pressly, Craig J. Hawker
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Publication number: 20150004712Abstract: Novel fluorescent markers of Formula I: are disclosed herein, wherein X and Y are independently or together absent or are independently selected from R and R1 are independently selected from H and alkyl; Ar is phenyl or heteroaryl; L is absent or a spacer selected from the group consisting of —NH—; —(CH2)nNH—; —NHSO2—; —(CH2)nNHCO—; -(cycloalkyl)NHCO—; —(CH2)nNHSO2—; -(cycloalkyl)NHSO2—; —CONH(CH2)nNHCO—; —CONH(cycloalkyl)NHCO—; —NHCO(CH2)nNHCO—; —NHCO(cycloalkyl)NHCO—; —(CH2)nSO2NH—; -(cycloalkyl)SO2NH—; —(CH2)nNHCSNH—; -(cycloalkyl)NHCSNH—; —CR?CR1—; —C?C—; —(CH2)nN?CH—; -(cycloalkyl)N?CH—; —N?CH(CH2)—; —N?CH(cycloalkyl)-; n is an integer ranging from 1 to 5; F is a fluorophore selected from the group consisting of fluorescein, rhodamine, eosin, thionine, safranin, coumarin, methoxycoumarin, dansyl, BODIPY and BODIPY derivatives; and wherein X, Y and L may be positioned in a 1,3,5; 1,2,3; 1,3,4 or in a 3,4,5 configuration respectively.Type: ApplicationFiled: September 15, 2014Publication date: January 1, 2015Applicant: UNIVERSITY OF OTTAWAInventors: Jeffrey Keillor, Karine Caron
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Publication number: 20140294851Abstract: Base-labile crosslinkers, base-labile conjugates comprising such crosslinkers, methods of their synthesis and use are disclosed.Type: ApplicationFiled: April 1, 2013Publication date: October 2, 2014Inventor: MARK QUANG NGUYEN
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Publication number: 20140256957Abstract: The invention is directed to multi-functional N-maleimidyl polymer derivatives comprising a water soluble and non-peptidic polymer backbone having a terminal carbon, such as a poly(alkylene glycol), the terminal carbon of the polymer backbone being directly bonded to the nitrogen atom of a N-maleimidyl moiety without a linking group therebetween. The invention also provides two methods of preparing such linkerless N-maleimidyl polymer derivatives.Type: ApplicationFiled: May 21, 2014Publication date: September 11, 2014Applicant: Nektar TherapeuticsInventor: Xiaoming Shen
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Publication number: 20140135486Abstract: A multi-arm polyethylene glycol (I) having different kinds of reactive groups and the uses thereof are disclosed, which is formed by polymerizing ethylene oxide with oligo-pentaerythritol as an initiator, wherein, PEG is same or different and is —(CH2CH2O)m—, the average value of m is an integer of 2-250; l is an integer of 1 or more. The method for producing the multi-arm polyethylene glycol having different kinds of reactive groups, the multi-arm polyethylene glycol active derivatives comprising linking groups X attached to PEG and terminal reactive groups F attached to X, the gels formed by the multi-arm polyethylene glycol active derivatives, the drug conjugates formed by the multi-arm polyethylene glycol active derivatives and drug molecules, and the uses thereof in preparing drugs are also disclosed.Type: ApplicationFiled: January 21, 2014Publication date: May 15, 2014Applicant: JENKEM TECHNOLOGY CO., LTD, TIANJIN BRANCHInventors: Xuan Zhao, Meina Lin
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Patent number: 8686162Abstract: The present invention provides amorphous maleimide-bismaleimide hybrid mixtures and methods for synthesizing such mixtures by condensation of diamine compounds with maleic anhydride along with one or more additional anhydrides. The invention provides a route to get passed the high melting point and the solubility issues of bismaleimide resins, yet to still obtain the good thermo-mechanical properties of these valuable molecules.Type: GrantFiled: August 25, 2011Date of Patent: April 1, 2014Assignee: Designer Molecules Inc, Inc.Inventor: Stephen M Dershem
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Patent number: 8637611Abstract: The invention is based on the discovery that a remarkable improvement in the performance of maleimide thermosets can be achieved by incorporating amide-extended maleimides into an adhesive formulation. Amide-extended maleimides described herein can be used to toughen bismaleimide thermosetting materials without sacrificing any thermal stability. Amide-extended maleimides are readily prepared by reacting a bismaleimide with an appropriate amine via the well-known Michael addition reaction. Acylation of the resulting secondary amines provides the amide-extended maleimide. The acylating agent can also be used to introduce polymerizable functional groups into the backbones of these thermoset monomers. Amide-extended acrylate and methacrylate monomers can also be prepared.Type: GrantFiled: August 13, 2009Date of Patent: January 28, 2014Assignee: Designer Molecules, Inc.Inventor: Stephen M Dershem
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Publication number: 20130338313Abstract: The invention is based on the discovery that a remarkable improvement in the performance of maleimide thermosets can be achieved by incorporating amide-extended maleimides into an adhesive formulation. Amide-extended maleimides described herein can be used to toughen bismaleimide thermosetting materials without sacrificing any thermal stability. Amide-extended maleimides are readily prepared by reacting a bismaleimide with an appropriate amine via the well-known Michael addition reaction. Acylation of the resulting secondary amines provides the amide-extended maleimide. The acylating agent can also be used to introduce polymerizable functional groups into the backbones of these thermoset monomers. Amide-extended acrylate and methacrylate monomers can also be prepared.Type: ApplicationFiled: August 19, 2013Publication date: December 19, 2013Applicant: Designer Molecules, Inc.Inventors: Stephen M. Dershem, Farhad G. Mizori
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Publication number: 20130316368Abstract: A component or device is provided for the detection or the measurement in parallel of one or more specific types of biological or chemical target products. This component includes a group of nanotubes selected and/or functionalized to interact with the target product, around an optical waveguide. Thus, an optical coupling is produced between the optical waveguide and one or more optical characteristics of these nanotubes, the modifications of which are evaluated in the presence of the target product. In addition, a method is provided for manufacturing and preparing such a component or device, and a detection method using them, as well as a post-manufacture preparation method comprising a specific functionalization for different target products starting from the same type of pluripotent generic component. Also provided is a family of PFO-based functionalization polymers.Type: ApplicationFiled: February 9, 2012Publication date: November 28, 2013Applicants: UNIVERSITE PARIS SUD 11, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Laurent Vivien, Etienne Gaufres, Nicolas Izard, Eric Doris, Edmond Gravel, Didier Boquet
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Publication number: 20130253207Abstract: The invention is directed to multi-functional N-maleimidyl polymer derivatives comprising a water soluble and non-peptidic polymer backbone having a terminal carbon, such as a poly(alkylene glycol), the terminal carbon of the polymer backbone being directly bonded to the nitrogen atom of a N-maleimidyl moiety without a linking group therebetween. The invention also provides two methods of preparing such linkerless N-maleimidyl polymer derivatives.Type: ApplicationFiled: May 9, 2013Publication date: September 26, 2013Applicant: NEKTAR THERAPEUTICSInventor: Xiaoming SHEN
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Publication number: 20130171515Abstract: An anode material is provided for a surface of an electrode. The anode material comprises carbon-containing substrates and unsaturated compounds. At least one chemical bond is formed between the unsaturated compounds and the surfaces of the carbon-containing substrates.Type: ApplicationFiled: April 23, 2012Publication date: July 4, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Li-Duan Tsai, Wei-Hsin Wu, Yueh-Wei Lin, Chia-Chen Fang
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Patent number: 8445699Abstract: The present invention relates to a phosphoric acid resistant advanced polymaleimide prepolymer composition including a polymaleimide prepolymer resulting from the advancement reaction of a polyimide and an alkenylphenol, alkenylphenol ether or mixture thereof in the presence of an amine catalyst; a solvent and a heteropolyacid. The phosphoric acid resistant advanced polymaleimide prepolymer composition may be used in various applications such as prepregs, laminates, printed circuit boards, castings, composites, moulded articles, adhesives and coatings.Type: GrantFiled: March 16, 2010Date of Patent: May 21, 2013Assignee: Huntsman Advanced Materials Americas LLCInventors: Roger Tietze, Yen-Loan Nguyen
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Publication number: 20130052130Abstract: Disclosed are general and “substantially pure” branched discrete polyethylene glycol constructs useful in attaching to a variety of biologically active groups, for example, preferential locators, as well as biologics like enzymes, for use in diagnostics, e.g. imaging, therapeutics, theranostics, and moieties specific for other applications. In its simplest intermediate state, a branched discrete polyethylene glycol construct is terminated at one end by a chemically reactive moiety, “A”, a group that is reactive with a biologic material that creates “A”, which is a biologically reactive group, connected through to a branched core (BC) which has attached at least two dPEG-containing chains, indicated by the solid line, , having terminal groups, which can be charged, non-reactive or reactable moieties and containing between about 2 and 64 dPEG residues.Type: ApplicationFiled: August 30, 2012Publication date: February 28, 2013Applicants: UNIVERSITY OF WASHINGTON, QUANTA BIODESIGN, LTD.Inventors: Paul D. Davis, D. Scott Wilbur
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Patent number: 8362276Abstract: The present invention provides a novel ?-sulfonimide compound having at least one imide group and at least one sulfonyl group and a method for preparing the same.Type: GrantFiled: April 5, 2006Date of Patent: January 29, 2013Assignee: INKTEC Co., Ltd.Inventors: Kwang-Choon Chung, Hyun-Nam Cho, Myoung-Seon Gong, Yun-Ho Jung
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Publication number: 20120238752Abstract: Provided is a colored photosensitive curing composition useful for color filters in primary colors, including blue, green, and red, having a high molar absorption coefficient and allowing a reduction in film thickness and superior color purity and fastness. A colored photosensitive curing composition, comprising, as its colorant, a dipyrromethene-based metal complex compound obtained from a metal or metal compound and a dipyrromethene-based compound represented by the following Formula (I): wherein in Formula (I), R1 to R6 each independently represent a hydrogen atom or a substituent group; and R7 represents a hydrogen or halogen atom, or an alkyl, aryl or heterocyclic group.Type: ApplicationFiled: May 23, 2012Publication date: September 20, 2012Applicant: FUJIFILM CORPORATIONInventors: Yuki MIZUKAWA, Ryoji GOTO, Hideki TAKAKUWA, Masashi OGIYAMA, Toru FUJIMORI
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Publication number: 20120171665Abstract: Novel fluorescent markers of Formula I: are disclosed herein, wherein X and Y are independently or together absent or are independently selected from R and R1 are independently selected from H and alkyl; Ar is phenyl or heteroaryl; L is absent or a spacer selected from the group consisting of —NH—; —(CH2)nNH—; —NHSO2—; —(CH2)nNHCO—; -(cycloalkyl)NHCO—; —(CH2)nNHSO2—; -(cycloalkyl)NHSO2—; —CONH(CH2)nNHCO—; —CONH(cycloalkyl)NHCO—; —NHCO(CH2)nNHCO—; —NHCO(cycloalkyl)NHCO—; —(CH2)nSO2NH—; -(cycloalkyl)SO2NH—; —(CH2)nNHCSNH—; -(cycloalkyl)NHCSNH—; —CR?CR1—; —C?C—; —(CH2)nN?CH—; -(cycloalkyl)N?CH—; —N?CH(CH2)—; —N?CH(cycloalkyl)-; n is an integer ranging from 1 to 5; F is a fluorophore selected from the group consisting of fluorescein, rhodamine, eosin, thionine, safranin, coumarin, methoxycoumarin, dansyl, BODIPY and BODIPY derivatives; and wherein X, Y and L may be positioned in a 1,3,5; 1,2,3; 1,3,4 or in a 3,4,5 configuration respectively.Type: ApplicationFiled: July 19, 2011Publication date: July 5, 2012Applicant: UNIVERSITE DE MONTREALInventors: Jeffrey Keillor, Karine Caron
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Patent number: 8124791Abstract: The invention provides an active energy ray curable liquid composition containing a compound represented by a general formula (I): wherein A is a hydrogen atom or a monovalent organic residue which may be substituted, R1 and R2 are, independently of each other, a divalent organic group which may be substituted, E is an amide bond, Rn is a cyclic linking group having a carbonyl group and an unsaturated carbon-carbon bond adjacent to the carbon atom of the carbonyl group, m is a number of 0 or greater, n is a number of 2 or greater, m+n is 3, and Z is a secondary or tertiary amino bond structure, with the proviso that the amino bond may be a salt of a secondary or tertiary amine, and a liquid cartridge.Type: GrantFiled: March 25, 2008Date of Patent: February 28, 2012Assignee: Canon Kabushiki KaishaInventors: Kenji Shinjo, Norio Ohkuma, Shoji Shiba, Hikaru Ueda, Hiroe Ishikura, Shinsuke Tsuji, Yoshikazu Saito, Kouji Harada, Yuichiro Kanasugi
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Publication number: 20120022270Abstract: The present invention relates to a new process for preparing dithiine-tetracarboxy-diimidesType: ApplicationFiled: May 20, 2011Publication date: January 26, 2012Applicant: Bayer CropScience AGInventors: Thomas HIMMLER, Martin KAUßMANN
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Patent number: 8101669Abstract: An exchange membrane containing modified maleimide oligomers comprising sulfonated poly(aryl ether ketone) (S-PAEK) and modified maleimide oligomers. The exchange membrane uses the modified maleimide oligomers having a hyper-branched architecture as matrix, and introduces them into S-PAEK to constitute semi-interpenetration network (semi-IPN), so as to intensify water holding capacity, chemical resistance, the electrochemical stability and thermal resistance of the ionic/proton exchange membrane. The exchange membrane can be used to fabricate the membrane electrode assemblies, fuel cells, and be applied them to the fields of seawater desalination, heavy water and sewage treatment, and biomass-energy resources.Type: GrantFiled: December 27, 2007Date of Patent: January 24, 2012Assignees: Industrial Technology Research Institute, National Central UniversityInventors: Jing-Pin Pan, Tsung-Hsiung Wang, Jung-Mu Hsu, Peter P. Chu, Chien-Shun Wu, Bo-Jun Liu
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Patent number: 8088932Abstract: Provided is a pentaaryldiamine-containing bismaleimide compound of Formula (I): wherein Ar1 to Ar5 are independently C6-C12 aryl; and Ar4 and Ar5 are optionally substituted by one or more substitutent(s) selected from the group consisting of C1-C6 alkyl, C1-C6 alkoxy, and cyano. The compound of Formula (I) is obtained by a method including the steps of reacting a diamine with maleic anhydride in a solvent to form an amic acid, and cyclodehydrating the amic acid in the presence of a catalyst and a dehydrating agent. The compound of Formula (I) has a nonlinear and asymmetric structure, is amorphous, and is readily soluble in a variety of organic solvents so that the toughness of the product made there from can be improved and processing of the compound can be simplified.Type: GrantFiled: April 21, 2009Date of Patent: January 3, 2012Assignee: Industrial Technology Research InstituteInventors: Guey-Sheng Liou, Cha-Wen Chang, Hung-Ju Yen, Jing-Pin Pan, Chang-Rung Yang, Tsung-Hsiung Wang, Jung-Mu Hsu
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Patent number: 8043534Abstract: The invention is based on the discovery that compositions containing certain maleimide compounds and aromatic diene compounds are useful as thermosetting resins for the electronic packaging industry. The invention compositions described herein can be cured in a variety of ways, with or without a catalyst. In some embodiments, the well-known “ene” reaction can be used to cure the compositions described herein, and therefore no catalyst is required.Type: GrantFiled: April 12, 2007Date of Patent: October 25, 2011Assignee: Designer Molecules, Inc.Inventor: Stephen Dershem
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Patent number: 8008360Abstract: A proton exchange membrane and method for formation the same is disclosed. When forming the proton exchange membrane, first, a bismaleimide and barbituric acid are copolymerized to form a hyper-branched polymer. Next, the solvent of the sulfonated tetrafluorethylene copolymer (Nafion) aqueous solution is replaced with dimethyl acetamide (DMAc). 10 to 15 parts by weight of the hyper-branched polymer is added to 90 to 85 parts by weight of the Nafion in the DMAc solution, stood and heated to 50° C. for inter-penetration of the hyper-branched polymer and the Nafion. The heated solution is coated on a substrate, baked, and pre-treated to remove residue solvent to complete formation of the proton exchange membrane.Type: GrantFiled: April 3, 2009Date of Patent: August 30, 2011Assignee: Industrial Technology Research InstituteInventors: Chung-Liang Chang, Jing-Pin Pan, Tsung-Hsiung Wang, Yueh-Wei Lin, Ya-Tin Hsu
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Publication number: 20110152466Abstract: The invention is based on the discovery that a remarkable improvement in the performance of maleimide thermosets can be achieved by incorporating amide-extended maleimides into an adhesive formulation. Amide-extended maleimides described herein can be used to toughen bismaleimide thermosetting materials without sacrificing any thermal stability. Amide-extended maleimides are readily prepared by reacting a bismaleimide with an appropriate amine via the well-known Michael addition reaction. Acylation of the resulting secondary amines provides the amide-extended maleimide. The acylating agent can also be used to introduce polymerizable functional groups into the backbones of these thermoset monomers. Amide-extended acrylate and methacrylate monomers can also be prepared.Type: ApplicationFiled: August 13, 2009Publication date: June 23, 2011Applicant: DESIGNER MOLECULES, INC.Inventor: Stephen M. Dershem
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Publication number: 20100221749Abstract: The invention relates to a three-functional pseudo-peptidic reagent, to the various uses thereof, in particular for preparing bioluminescent reagents or optionally luminescent bio-conjugates, to the use of said reagents and bio-conjugates for functionalising solid substrates, and to the use of solid substrates thus functionalised in the detection of molecules of interest.Type: ApplicationFiled: July 10, 2008Publication date: September 2, 2010Inventors: Guillaume Clave, Pierre-Yves Renard, Anthony Romieu, Herve Volland
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Publication number: 20100215973Abstract: Disclosed is a composition for forming a board. The composition includes a maleimide-based compound including at least three maleimide groups and a liquid crystalline polymer or oligomer. A prepreg and a board are each fabricated using the composition.Type: ApplicationFiled: August 17, 2009Publication date: August 26, 2010Applicants: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG FINE CHEMICALS CO., LTD, SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kalinina Fedosya, Myung-Sup Jung, Chung-Kun Cho, Jae-Jun Lee, Kwang-Hee Kim
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Publication number: 20100168442Abstract: A pentaaryldiamine-containing bismaleimide compound of Formula (I): is provided, wherein Ar1 to Ar5 are independently C6-C12 aryl, and Ar4 and Ar5 may be optionally substituted. The compound of Formula (I) is obtained by steps of reacting diamine with maleic anhydride in a solvent to form an amic acid, and cyclodehydrating the amic acid in the presence of a catalyst and a dehydrating agent. The compound of Formula (I) with a nonlinear and asymmetric structure is amorphous and is readily soluble in a variety of organic solvents, such that the toughness of the product made therefrom can be improved and processing of the compound can be simplified. Furthermore, the compounds of Formula (I) having cyano substituents on the aromatic ring may exhibit better flame retardancy and heat resistance, higher oxidative stability, electron-withdrawing property etc., such that these compound have wider application in industry.Type: ApplicationFiled: April 21, 2009Publication date: July 1, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Guey-Sheng LIOU, Cha-Wen CHANG, Hung-Ju YEN, Jing-Pin PAN, Chang-Rung YANG, Tsung-Hsiung WANG, Jung-Mu HSU
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Publication number: 20100143387Abstract: The present invention is directed to a multimeric agent and a multimeric conjugate formed from this multimeric agent and a biologically active agent. Said multimeric conjugates have a longer life time in vivo and an increased avidity compared to the unmodified biologically agent. The present invention is further directed to a pharmaceutical or diagnostic composition containing said conjugate as well as to a method of its production. The invention additionally provides the use of said conjugates for the detection, determination, separation and/or isolation of a specific binding partner and for the diagnosis, prophylaxis and treatment of diseases in which the specific binding partner is directly or indirectly involved.Type: ApplicationFiled: February 11, 2008Publication date: June 10, 2010Inventors: Ralf Kraehmer, Frank Leenders, Erik Fiedler, Thomas Hey, Ulrike Fiedler, Markus Fiedler
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Publication number: 20100094024Abstract: The invention provides an active energy ray curable liquid composition containing a compound represented by a general formula (I): wherein A is a hydrogen atom or a monovalent organic residue which may be substituted, R1 and R2 are, independently of each other, a divalent organic group which may be substituted, E is an amide bond, Rn is a cyclic linking group having a carbonyl group and an unsaturated carbon-carbon bond adjacent to the carbon atom of the carbonyl group, m is a number of 0 or greater, n is a number of 2 or greater, m+n is 3, and Z is a secondary or tertiary amino bond structure, with the proviso that the amino bond may be a salt of a secondary or tertiary amine, and a liquid cartridge.Type: ApplicationFiled: March 25, 2008Publication date: April 15, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kenji Shinjo, Norio Ohkuma, Shoji Shiba, Hikaru Ueda, Hiroe Ishikura, Shinsuke Tsuji, Yoshikazu Saito, Kouji Harada, Yuichiro Kanasugi
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Publication number: 20100036136Abstract: An oligomeric compound that is the Michael addition reaction product of a thiol with a compound having maleimide terminal groups and ester functionality internal in the compound can be formulated into curable compositions to improve adhesion to metal substrates.Type: ApplicationFiled: August 7, 2009Publication date: February 11, 2010Inventor: Osama M. Musa
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Patent number: 7655155Abstract: A liquid crystal thermoset (LCT) monomer or oligomer having both ends capped with maleimide having at least one methyl group, represented by Formula 1: wherein R1 and R2 are each independently CH3 or H, and at least one of R1 and R2 is a methyl group, and Ar1 is a divalent organic group containing one or more structural units selected from the group consisting of ester, amide, ester amide, ester imide and ether imide units, and Ar1 has a molecular weight not greater than 5,000.Type: GrantFiled: July 15, 2008Date of Patent: February 2, 2010Assignees: Samsung Electronics Co., Ltd., Samsung Electro-Mechanics Co., Ltd., Samsung Fine Chemicals Co., Ltd.Inventors: Myung Sup Jung, Chung Kun Cho, Yong Ho Ahn, Seo Won Jang, Jin Hae Chang, Mahn Jong Kim, Chung Won Park
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Publication number: 20090324720Abstract: Disclosed are hydrogel compositions formed by the mixture of a tetramethylmethane substituted with one or more polyethylene glycols, and wherein each polyethylene glycol substituent is independently further substituted with one or more electrophilic groups, and a tetramethylmethane substituted with one or more polyethylene glycols, and wherein each polyethylene glycol substituent is independently further substituted with one or more nucleophilic groups. Disclosed are also methods of preparing the above hydrogels. The hydrogel compositions can further comprise pharmaceuticals, such as analgesics or local anesthetics. Disclosed are also methods of sealing a wound, preventing post-surgical adhesion, and reducing post-surgical pain using the disclosed hydrogels.Type: ApplicationFiled: April 22, 2009Publication date: December 31, 2009Applicant: Angiotech Pharmaceuticals, Inc.Inventors: Yuehua He, Aniko Takacs-Cox, Anthony Boey, Brent Zaluski, Roger A. Smith, Audrey A. Deschamps, Rui Avelar
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Publication number: 20090312519Abstract: A bismaleamic acid obtained by reacting a bifunctional phenylene ether oligomer diamine, obtained by introducing aromatic amino groups into both terminals of a specific bifunctional phenylene ether oligomer, with maleic anhydride, a bismaleimide obtained from the bismaleamic acid as a raw material, which bismaleimide has high heat resistance, low dielectric characteristics and excellent solvent solubility and exhibits only a small change in dielectric characteristics even in high humidity, a curable resin composition containing the above bismaleimide and a cured product obtained by curing the curable resin composition.Type: ApplicationFiled: June 9, 2009Publication date: December 17, 2009Inventors: Kazuyoshi Uera, Daisuke Ohno, Kenji Ishii
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Publication number: 20090286001Abstract: An active energy radiation polymerizable substance is disclosed which is represented by the following general formula (I): wherein Z is a dihydric to hexahydric polyol residue, and A, B and D are groups represented by the following formulas (II) to (IV), respectively: (II), (III), and (IV).Type: ApplicationFiled: September 28, 2006Publication date: November 19, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Tsuyoshi Kanke, Yutaka Kurabayashi, Kenji Shinjo, Hiromitsu Kishi
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Publication number: 20090275703Abstract: Process for cross-linking ethylene-?-olefin copolymers comprising the step of combining the copolymer with (a) an initiator capable of generating free radicals and (b) a sulfur-containing co-agent according to formula R—Y—Sx—Y—R. This process results in cross-linked copolymers with improved dynamic properties, tensile strength, delta torque, and/or modulus, without compromising on compression set or aging stability.Type: ApplicationFiled: December 15, 2006Publication date: November 5, 2009Applicant: STICHTING DUTCH POLYMER INSTITUTEInventors: Maria Montserrat Alvarez Grima, Auke Gerardus Talma, Rabindra Nath Datta, Jacobus Wilhelmus Noordermeer, Francesca Romana De Risi
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Publication number: 20090224203Abstract: A liquid crystal thermoset (LCT) monomer or oligomer having both ends capped with maleimide having at least one methyl group, represented by Formula 1: wherein R1 and R2 are each independently CH3 or H, and at least one of R1 and R2 is a methyl group, and Ar1 is a divalent organic group containing one or more structural units selected from the group consisting of ester, amide, ester amide, ester imide and ether imide units, and Ar1 has a molecular weight not greater than 5,000.Type: ApplicationFiled: July 15, 2008Publication date: September 10, 2009Applicants: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG ELECTRO-MECHANICS CO., LTD., SAMSUNG FINE CHEMICALS CO., LTD.Inventors: Myung Sup Jung, Chung Kun Cho, Mahn Jong Kim, Chung Won Park, Yong HO Ahn, Seo Won Jang, Jin Hae Chang
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Publication number: 20090131938Abstract: The invention relates to a tertiary amine intermediate represented by the following formula, and electrophilic monomers derived therefrom. The invention also relates to adhesives or sealants derived from such electrophilic moieties. where R?CH3, H, CH3CH2 or other alkyl group; and R1?H, C(O)CH2OCH2COOH, C(O)(CH2)nCOOH with n=1-4, or combinations thereof.Type: ApplicationFiled: November 19, 2007Publication date: May 21, 2009Inventors: Chetan A. Khatri, Binoy K. Bordoloi
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Publication number: 20080221325Abstract: An exchange membrane containing modified maleimide oligomers comprising sulfonated poly(aryl ether ketone) (S-PAEK) and modified maleimide oligomers. The exchange membrane uses the modified maleimide oligomers having a hyper-branched architecture as matrix, and introduces them into S-PAEK to constitute semi-interpenetration network (semi-IPN), so as to intensify water holding capacity, chemical resistance, the electrochemical stability and thermal resistance of the ionic/proton exchange membrane. The exchange membrane can be used to fabricate the membrane electrode assemblies, fuel cells, and be applied them to the fields of seawater desalination, heavy water and sewage treatment, and biomass-energy resources.Type: ApplicationFiled: December 27, 2007Publication date: September 11, 2008Inventors: Jing-Ping Pan, Tsung-Hsiung Wang, Jung-Mu Hsu, Peter P. Chu, Chien-Shun Wu, Bo-Jun Liu
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Publication number: 20080160017Abstract: The present invention provides a compound consisting essentially of the following elements: one or more reactive groups; and two or more cross-linked antibodies or fragments thereof; characterised in that the or each reactive group is suitable for attaching an effector molecule but does not react with any of the antibodies or fragments thereof.Type: ApplicationFiled: May 17, 2005Publication date: July 3, 2008Inventors: Terence Seward Baker, Catherine McKay, Timothy John Norman, John Robert Porter
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Patent number: 6960667Abstract: The present invention is directed to maleimides and preparation of compounds of the formula I wherein R1 and R2 independently from each other stand for variously substituted, and R3 stands for allyl, variously substituted, with the proviso, that R1 and R2 not simultaneously stand for phenyl.Type: GrantFiled: October 10, 2002Date of Patent: November 1, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Patent number: 6716992Abstract: A curable composition comprises a compound having at least one epoxy group and at least one maleimide, styrenic or cinnamyl group per molecule. A representative compound has the structure in which Z′ and Z are any monomeric, oligomeric or polymeric organic moiety; X is a direct bond or a functional group; and R and R′ are hydrogen, an alkyl group having 1 to 12 carbon atoms, or an aromatic or heteroaromatic ring or fused ring having 3 to 10 carbon atoms within the ring structure.Type: GrantFiled: July 22, 2002Date of Patent: April 6, 2004Assignee: National Starch and Chemical Investment Holding CorporationInventor: Osama M. Musa
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Patent number: 6693202Abstract: Disclosed are multibinding compounds which are muscarinic receptor antagonists. The multibinding compounds of this invention containing from 2 to 10 ligands covalently attached to one or more linkers. Each ligand is, independently of each other, a muscarinic receptor antagonist or an allosteric modulator provided that at least one of said ligand is a muscarinic receptor antagonist. The multibinding compounds of this invention are useful in the treatment and prevention of diseases such as chronic obstructive pulmonary disease, chronic bronchitis, irritable bowel syndrome, urinary incontinence, and the like.Type: GrantFiled: August 25, 2000Date of Patent: February 17, 2004Assignee: Theravance, Inc.Inventors: James Aggen, John H. Griffin, Mathai Mammen, Daniel Marquess, Edmund J. Moran, David Oare
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Publication number: 20040019224Abstract: In accordance with the present invention, there are provided thermosetting resin compositions with a reduced propensity to shrink in volume upon cure and methods of use therefor. The compositions of the present invention include compounds having aromatic, rigid-rod like spacer groups between the crosslinkable moieties. As such, these compounds impart a degree of liquid crystal-like character to the thermosetting resin composition which results in lower shrinkage upon cure. This effect follows from the well-known expansion that occurs when liquid crystal-like materials pass from a nematic liquid crystal-like state to an isotropic state. Further provided by the present invention are low shrinkage die attach pastes and methods of use therefor.Type: ApplicationFiled: February 14, 2003Publication date: January 29, 2004Applicant: Henkel Loctite CorporationInventors: Stephen M. Dershem, Kang Yang, Puwei Liu
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Publication number: 20030189191Abstract: Fluorescent maleimides of the formula I 1Type: ApplicationFiled: October 10, 2002Publication date: October 9, 2003Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Patent number: 6603035Abstract: Provided is a method for producing high purity cyanate derived from a phenol compound represented by the following formula (I): in the formula, each of A independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X represents a single bond, an organic group having 1 to 20 carbon atoms, a carbonyl group, a sulfone group, a divalent sulfur atom or an oxygen atom, i and n represent an integer from 0 to 4. The cyanate contains low amount of impurities such as unreacted phenols and imidecarbonate, and is preferably used as a thermosetting resin for a sealing, laminate, composite material, molding material and adhesive for electric parts.Type: GrantFiled: August 20, 1999Date of Patent: August 5, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Okamoto, Hisashi Watabu
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Patent number: 6508957Abstract: The present invention relates to methods for using a maleimide of formula (I) with the proviso that R1 and R2 do not simultaneously stand for phenyl or a maleimide of formula Ia as UV fluorescent material for void detection and for the preparation of scintillators films, luminescent solar energy collectors, organic electroluminescent devices, printing inks, non-impact printing inks, electrophotographic toners, color filters, and colored high molecular organic material.Type: GrantFiled: May 21, 2001Date of Patent: January 21, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Publication number: 20020065422Abstract: The present invention relates to methods for using a maleimide of formula (I) 1Type: ApplicationFiled: May 21, 2001Publication date: May 30, 2002Inventors: Kazuhiko Kunimoto, Junji Otani, Kunihiko Kodama, Hiroshi Yamamoto, Patrick Verhoustraeten, Sonia Megert, Adalbert Braig
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Patent number: 6172239Abstract: The invention relates to compounds of the formula The compounds have agreat affinity for the neurotensin receptors.Type: GrantFiled: August 16, 1999Date of Patent: January 9, 2001Assignee: SanofiInventors: Bernard Labeeuw, Danielle Gully, Francis JeanJean, Jean-Charles Molimard, Robert Boigegrain
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Patent number: 6169186Abstract: The invention relates to bismaleimides comprising mesogenic groups which consist, corresponding to (I), of two reactive terminal maleimide groups which are linked via linear or singly alkyl-substituted alkylene chains A, which are linked to an aromatic mesogen M via ester, amide or ether groups, wherein A, X, M and R are as defined in the specification. The invention, moreover, relates to oligomeric liquid crystalline bismaleimides of general formula (II) wherein A, X, M and R are as defined above, n represents and integer from 1 to 100 and B represents piperazinyl or a divalent radical which is derived from a primary or secondary para-substituted cyclic diamine, wherein B is bonded via the amino groups of the diamine. The invention also relates to methods of producing said bismaleimides.Type: GrantFiled: December 27, 1999Date of Patent: January 2, 2001Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Masaru Imai, Rainer B. Frings, Gerwald F. Grahe, Joji Kawamura, Naoki Obi