Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 3412. Отображено 100.
19-07-2012 дата публикации

Functionalized polymers and methods for their manufacture

Номер: US20120184677A1
Автор: Steven Luo
Принадлежит: Bridgestone Corp

A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a carboxylic or thiocarboxylic ester containing a silylated amino group.

Подробнее
Номер записи: 1
18-04-2013 дата публикации

POLYMERS FUNCTIONALIZED WITH NITROSO COMPOUNDS

Номер: US20130096264A1
Автор: Luo Steven
Принадлежит:

A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound. 1. A method for preparing a functionalized polymer , the method comprising the steps of:(i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and(ii) reacting the reactive polymer with a nitroso compound.2. The method of claim 1 , where the nitroso compound is defined by the formula β—N═O claim 1 , where β is a mono-valent organic group and —N═O is a nitroso group.3. The method of claim 2 , where the mono-valent organic group β is bonded to the nitroso group through a carbon atom claim 2 , a nitrogen atom claim 2 , an oxygen atom claim 2 , or a sulfur atom that resides within the β group.4. The method of claim 2 , where the mono-valent organic group β is selected from the groups consisting of hydrocarbyl groups claim 2 , substituted hydrocarbyl groups claim 2 , protected amino groups claim 2 , hydrocarbyloxy groups claim 2 , substituted hydrocarbyloxy groups claim 2 , hydrocarbylthio groups claim 2 , and substituted hydrocarbylthio groups.5. The method of claim 2 , where the nitroso compound is selected from the group consisting of C-nitroso compounds claim 2 , N-nitroso compounds claim 2 , O-nitroso compounds claim 2 , and S-nitroso compounds.6. The method of claim 5 , where the nitroso compound is a C-nitroso compound.7. The method of claim 5 , where the nitroso compound is an N-nitroso compound.8. The method of claim 5 , where the nitroso compound is an O-nitroso compound.9. The method of claim 5 , where the nitroso compound is an S-nitroso compound.10. The method of claim 6 , where the nitroso compound is a C-nitroso compound selected from the group consisting of nitrosomethane claim 6 , nitrosoethane claim 6 , 1-nitroso-n-propane claim 6 , 2-nitroso-n-propane claim 6 , 1-nitroso-n-butane claim 6 , 2-methyl- ...

Подробнее
Номер записи: 2
25-04-2013 дата публикации

Functionalized high cis-1,4-polybutadiene prepared using novel functionalizing agents

Номер: US20130102736A1
Автор: H. Jerrold Miller, Iwakazu Hattori, Koichi Morita, Koji Masaki, Takuo Sone, Tatsuo Fujimaki, Tetsuyo Ohumura, Yoichi Ozawa
Принадлежит: Individual

A method for preparing a functionalized polymer comprising the steps of preparing a polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst, wherein the lanthanide-based catalyst comprises (a) a lanthanide compound, (b) an alkylating agent, and (c) a source of halogen, and reacting the pseudo-living polymer with at least one amide-containing functionalizing agent.

Подробнее
Номер записи: 3
13-06-2013 дата публикации

Golf ball composition and golf ball

Номер: US20130150182A1
Автор: Hideo Takeichi, Satoru Tamaki, Takashi Ohira, Teppei Mori, Tsuyoshi Nakajima, Yuichiro OZAWA, Yusuke Yamagata
Принадлежит: Bridgestone Corp, Bridgestone Sports Co Ltd

A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which includes a diene polymer containing not more than 1.5% of components having a molecular weight of 30,000 or less.

Подробнее
Номер записи: 4
13-06-2013 дата публикации

Golf ball composition and golf ball

Номер: US20130150184A1
Автор: Hideo Takeichi, Satoru Tamaki, Takashi Ohira, Teppei Mori, Tsuyoshi Nakajima, Yuichiro OZAWA, Yusuke Yamagata
Принадлежит: Bridgestone Corp, Bridgestone Sports Co Ltd

A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which contains a diene polymer having a smallest molecular weight value of at least 3,000.

Подробнее
Номер записи: 5
12-09-2013 дата публикации

Neodymium-catalyzed polybutadienes

Номер: US20130237669A1
Автор: Heike Kloppenburg, Norbert Steinhauser
Принадлежит: LANXESS DEUTSCHLAND GMBH

The invention relates to a high-molecular-weight, linear, neodymium-catalysed polybutadiene having a high proportion, >95%, of cis-1,4 units having a low proportion, <1%, of 1,2-vinyl content, and also having a small molar-mass-polydispersity index (MPI), characterized in that Mooney viscosity (ML 1+4 100° C.) of the polybutadiene is from 70 to 90 and The molar-mass-polydispersity index of the polybutadiene is smaller than 10.

Подробнее
Номер записи: 6
26-09-2013 дата публикации

POLYMERS OF ISROPENE FROM RENEWABLE RESOURCES

Номер: US20130253141A1
Автор: Aldor Ilana S., Cervin Marguerite, Chotani Gopal K., Feher Frank J., Fioresi Carol, McAuliffe Joseph, Miasnikov Andrei, Puhala Aaron S., SANFORD Karl J., Valle Fernando, Whited Gregory M.
Принадлежит:

It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has δC value of greater than −22‰. 1. A polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer , wherein the polyisoprene polymer has δC value of greater than −22.2. The polyisoprene polymer as specified in wherein the polyisoprene polymer is a homopolymer.3. The polyisoprene polymer as specified in wherein the polyisoprene polymer has a cis-microstructure content which is within the range of 98% to 99.5% claim 2 , a 3 claim 2 ,4-microstructure content which is within the range of 0.5% to 2.0% claim 2 , and a trans-microstructure content which is within the range of 0.0% to 0.5%.4. The polyisoprene polymer as specified in wherein the polyisoprene polymer contains more than 70 percent 1 claim 2 ,2- and 3 claim 2 ,4-structural units.5. The polyisoprene polymer as specified in wherein the polyisoprene polymer has a 3 claim 2 ,4-microstructure content which is within the range of about 65% to about 85% and a cis-1 claim 2 ,4-microstructure content which is within the range of about 15% to about 35%.6. The polyisoprene polymer as specified in wherein the polyisoprene polymer is ...

Подробнее
Номер записи: 7
17-10-2013 дата публикации

GEL SEALING CORROSION PREVENTION TAPE

Номер: US20130273342A1
Автор: Falteisek Steven L., Johnson Michael A.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A deformable tacky polyurethane polymer is provided which is the reaction product of a polyisocyanate, a polyol, and a mono-hydroxy tackifier. In addition, compositions pare provided comprising a polymer according to the present disclosure and one or more of: surface modified silica nanoparticles, glass bubbles and fiber filler particles. In addition, a flexible gasketing tape is provided comprising a polymer according to the present disclosure or a composition according to the present disclosure. 1. A deformable tacky polyurethane polymer which is the reaction product of a polyisocyanate , a polyol , and a mono-hydroxy tackifier.2. The polymer according to wherein the mono-hydroxy tackifier is a compound which may be derived from resin.3. The polymer according to wherein the mono-hydroxy tackifier is a compound which may be derived from rosin.4. The polymer according to wherein the mono-hydroxy tackifier is a compound which may be derived from a resin acid.5. The polymer according to wherein the mono-hydroxy tackifier is a compound which is polycyclic.6. The polymer according to wherein the mono-hydroxy tackifier is a compound which is tricyclic.7. The polymer according to wherein the mono-hydroxy tackifier has a molecular weight of greater than 200.8. The polymer according to wherein the mono-hydroxy tackifier has a molecular weight of greater than 250.9. The polymer according to wherein the mono-hydroxy tackifier is hydroabietyl alcohol.10. The polymer according to wherein the polyisocyanate is a multifunctional polyisocyanate having a functionality of greater than 2.11. The polymer according to wherein the polyol has a molecular weight of greater than 500.12. The polymer according to wherein the polyol has a molecular weight of greater than 700.13. The polymer according to wherein the polyol is a hydroxyl-terminated polybutadiene.14. A composition comprising the polymer according to and surface modified silica nanoparticles.15. A composition comprising the ...

Подробнее
Номер записи: 8
24-10-2013 дата публикации

Bulk Polymerization Of Conjugated Dienes Using A Nickel-Based Catalyst System

Номер: US20130281642A1
Автор: Luo Steven, McCauley Kevin M.
Принадлежит: BRIDGESTONE CORPORATION

A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer with a nickel-based catalyst system, where said step of polymerizing takes place within a polymerization mixture that includes less than 20% by weight of organic solvent based on the total weight of the polymerization mixture, where the temperature of the polymerization mixture is maintained below 34° C. during said step of polymerizing, and where the conversion of the conjugated diene monomer is maintained below 30%. 1. A process for preparing a polydiene , the process comprising the step of:polymerizing conjugated diene monomer with a nickel-based catalyst system, where said step of polymerizing takes place within a polymerization mixture that includes less than 20% by weight of organic solvent based on the total weight of the polymerization mixture, where the temperature of the polymerization mixture is maintained below 34° C. during said step of polymerizing, and where the conversion of the conjugated diene monomer is maintained below 30%.2. The process of claim 1 , where the nickel-based catalyst system is the combination or reaction product of (a) a nickel-containing compound claim 1 , (b) an alkylating agent claim 1 , and (c) a fluorine source.3. The process of claim 2 , where the nickel-containing compound is selected from the group consisting of nickel carboxylates claim 2 , nickel carboxylate borates claim 2 , nickel organophosphates claim 2 , nickel organophosphonates claim 2 , nickel organophosphinates claim 2 , nickel carbamates claim 2 , nickel dithiocarbamates claim 2 , nickel xanthates claim 2 , nickel β-diketonates claim 2 , nickel alkoxides or aryloxides claim 2 , nickel halides claim 2 , nickel pseudo-halides claim 2 , nickel oxyhalides claim 2 , and organonickel compounds.4. The process of claim 2 , where the alkylating agent is defined by the formula AlRX claim 2 , where each R independently can be a monovalent organic group that is ...

Подробнее
Номер записи: 9
12-12-2013 дата публикации

METHOD FOR PRODUCING POLYDIENES AND POLYDIENE COPOLYMERS WITH REDUCED COLD FLOW

Номер: US20130331507A1
Автор: Luo Steven
Принадлежит:

A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a boronic ester containing a cyano group. 1. A method for preparing a coupled polymer , the method comprising the steps of:(i) polymerizing monomers to form a reactive polymer, and(ii) reacting the reactive polymer with a boronic ester containing a cyano group.3. The method of claim 2 , where the boronic ester group is selected from the group consisting of dihydrocarbyl boronic ester claim 2 , dihydrocarbyl boronate ester claim 2 , bis(dihydrocarbylhydrosilyl)boronic ester claim 2 , (hydrocarbyl)(trihydrocarbylsilyl)boronic ester claim 2 , (hydrocarbyl)(dihydrocarbylhydrosilyl)boronic ester claim 2 , hydrocarbylene boronic ester claim 2 , silahydrocarbylene boronic ester claim 2 , and disilahydrocarbylene boronic ester groups.4. The method of claim 3 , where the dihydrocarbyl boronic ester group is selected from the group consisting of dimethyl boronic ester claim 3 , diethyl boronic ester claim 3 , di-n-propyl boronic ester claim 3 , diisopropyl boronic ester claim 3 , di-n-butyl boronic ester claim 3 , di-t-butyl boronic ester claim 3 , di-n-pentyl boronic ester claim 3 , dineopentyl boronic ester claim 3 , di-n-hexyl boronic ester claim 3 , dioctyl boronic ester claim 3 , dicyclohexyl boronic ester claim 3 , methylethyl boronic ester claim 3 , ethylpropyl boronic ester claim 3 , diphenyl boronic ester claim 3 , and dibenzyl boronic ester groups claim 3 , (methyl)(isopropyl)boronic ester claim 3 , (methyl)(cyclohexyl)boronic ester claim 3 , (ethyl)(cyclohexyl)boronic ester claim 3 , (methyl)(phenyl)boronic ester claim 3 , (ethyl)(phenyl)boronic ester claim 3 , (methyl)(benzyl)boronic ester claim 3 , and (ethyl)(benzyl)boronic ester groups.5. The method of claim 3 , where the bis(trihydrocarbylsilyl)boronic ester group is selected from the group consisting of bis(trimethylsilyl)boronic ester ...

Подробнее
Номер записи: 10
02-01-2014 дата публикации

Polybutadiene derivative composition

Номер: US20140005317A1
Автор: Hiroki Hashimoto, Yukikazu Nobuhara
Принадлежит: Nippon Soda Co Ltd

A composition containing a stabilizer that does not turn yellow upon curing and acts as a polymerization inhibitor during production and storage of a (meth)acrylic modified (hydrogenated) polybutadiene. The curable composition contains 0.1-99.9999% by weight of component (A), which is a (meth)acrylic modified (hydrogenated) polybutadiene, and 0.0001-10% by weight of component (B), which is a compound represented by formula (IV).

Подробнее
Номер записи: 11
09-01-2014 дата публикации

PROCESS FOR PRODUCING POLYDIENES

Номер: US20140011963A1
Автор: Luo Steven, McCauley Kevin M.
Принадлежит: BRIDGESTONE CORPORATION

A method for producing a polydiene, the method comprising the steps of: (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in the substantial absence of an amine; and (ii) polymerizing conjugated diene monomer in the presence of the active catalyst and an amine. 147-. (canceled)48. A method for producing a polydiene , the method comprising the steps of:(i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in the substantial absence of an amine; and(ii) polymerizing conjugated diene monomer in the presence of the active catalyst and an amine.49. The method of claim 48 , where the alkylating agent includes an aluminoxane and an organoaluminum compound represented by the formula AlRnX3-n claim 48 , where each R claim 48 , which may be the same or different claim 48 , is a monovalent organic group that is attached to the aluminum atom via a carbon atom claim 48 , where each X claim 48 , which may be the same or different claim 48 , is a hydrogen atom claim 48 , a halogen atom claim 48 , a carboxylate group claim 48 , an alkoxide group claim 48 , or an aryloxide group claim 48 , and where n is an integer of 1 to 3.50. The method of claim 48 , where the active catalyst is preformed.51. The method of claim 48 , where the active catalyst employed in said step of polymerizing includes less than 2 mmol of lanthanide-containing compound per 100 g of conjugated diene monomer.52. The method of claim 48 , where said step of forming takes place in the presence of less than 10 mole of an amine per mole of lanthanide metal in said lanthanide-containing compound.53. The method of claim 48 , where said step of forming takes place in the complete absence of an amine.54. The method of claim 48 , where the active catalyst is formed in situ in the presence of the conjugated diene monomer by introducing less than 2 mmol of lanthanide-containing compound per ...

Подробнее
Номер записи: 12
09-01-2014 дата публикации

IRON COMPLEXES AND METHODS FOR POLYMERIZATION

Номер: US20140011971A1
Автор: Raynaud Jean B., Ritter Tobias, Wu Jessica Yung
Принадлежит: President and Fellows of Harvard College

Provided are methods of preparing polymers, such as polyisoprene, polybutadiene, polypiperylene, polycyclohexadiene, poly-β-farnesene, or poly-β-myrcene, using iron complexes. Also provided are novel iron complexes, pre-catalysts, intermediates, and ligands useful in the inventive polymerization system. 1. (canceled)12. The method according to claim 11 , wherein Land Lare both chloro.13. (canceled)14. The method according to claim 2 , wherein the polyisoprene is between about 50% to about 100% 1 claim 2 ,4-cis-polyisoprene.15. The method according to claim 2 , wherein the polyisoprene is less than 5% 1 claim 2 ,4-trans-polyisoprene.16. The method according to claim 2 , wherein the polyisoprene comprises 1 claim 2 ,4-cis-polyisoprene and 1 claim 2 ,4-trans-polyisoprene in a ratio of between about 95:5 to about 100:0 1 claim 2 ,4-cis-polyisoprene to 1 claim 2 ,4-trans-polyisoprene.1718-. (canceled)19. The method according to claim 2 , wherein the polyisoprene is between about 50% to about 100% 1 claim 2 ,4-trans-polyisoprene.20. The method according to claim 2 , wherein the polyisoprene is less than 5% 1 claim 2 ,4-cis-polyisoprene.21. The method according to claim 2 , wherein the polyisoprene comprises 1 claim 2 ,4-trans-polyisoprene and 1 claim 2 ,4-cis-polyisoprene in a ratio of between about 95:5 to about 100:0 1 claim 2 ,4-trans-polyisoprene to 1 claim 2 ,4-cis-polyisoprene.22. (canceled)23. The method according to claim 2 , wherein the polyisoprene is less than 30% 3 claim 2 ,4-polyisoprene.24. The method according to claim 2 , wherein the polyisoprene is less than 5% 1 claim 2 ,2-polyisoprene.25. The method according to claim 2 , wherein the step of polymerizing further comprises an initiator.2629-. (canceled)30. The method according to claim 2 , wherein the method further comprises an alkylating agent and a dealkylating agent.3138-. (canceled)39. The method according to claim 2 , wherein the number-average molar mass (Mn) of the polyisoprene is between about 2 ...

Подробнее
Номер записи: 13
30-01-2014 дата публикации

Polymers Functionalized With Protected Hydrazone Compounds Containing An Acyl Group

Номер: US20140031488A1
Автор: Dickstein Joshua S., Luo Steven
Принадлежит: BRIDGESTONE CORPORATION

A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer; and (ii) reacting the reactive polymer with a protected hydrazone compound containing an acyl group. 1. A method for preparing a functionalized polymer , the method comprising the steps of:(i) polymerizing monomer to form a reactive polymer, and(ii) reacting the reactive polymer with a protected hydrazone compound containing an acyl group.2. The method of claim 1 , where the protected hydrazone compound containing an acyl group contains one or more hydrazone groups selected from the group consisting of N claim 1 ,N-dihydrocarbylhydrazone groups claim 1 , N claim 1 ,N-bis(trihydrocarbylsilyl)hydrazone groups claim 1 , N claim 1 ,N-bis(dihydrocarbylhydrosilyl)hydrazone groups claim 1 , N-hydrocarbyl-N-trihydrocarbylsilylhydrazone groups claim 1 , N-hydrocarbyl-N-dihydrocarbylhydrosilylhydrazone groups claim 1 , N claim 1 ,N-hydrocarbylenehydrazone groups claim 1 , N claim 1 ,N-silahydrocarbylenehydrazone groups claim 1 , and N claim 1 ,N-disilahydrocarbylenehydrazone groups.27. The method of claim 1 , where the protected hydrazone compound containing an acyl group is an N claim 1 ,N-dihydrocarbylhydrazone containing an acyl group.28. The method of claim 1 , where the protected hydrazone compound containing an acyl group is an N claim 1 ,N-bis(trihydrocarbylsilyl)hydrazone containing an acyl group.29. The method of claim 1 , where the protected hydrazone compound containing an acyl group is an N claim 1 ,N-bis(dihydrocarbylhydrosilyl)hydrazone containing an acyl group.30. The method of claim 1 , where the protected hydrazone compound containing an acyl group is an N-hydrocarbyl-N-trihydrocarbylsilylhydrazone containing an acyl group.31. The method of claim 1 , where the protected hydrazone compound containing an acyl group is an N-hydrocarbyl-N-dihydrocarbylhydrosilylhydrazone containing an acyl group.32. The method of claim 1 , ...

Подробнее
Номер записи: 14
06-02-2014 дата публикации

Lanthanide Complex Catalyst And Polymerization Method Employing Same

Номер: US20140039126A1
Автор: Dickstein Joshua S., Luo Steven, Qin Zengquan
Принадлежит: BRIDGESTONE CORPORATION

A novel class of lanthanide metal salen complexes can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers. 2. The lanthanide metal complex of wherein L is tetrahydrofuran.3. The lanthanide metal complex of wherein Ris a halogen atom.4. The lanthanide metal complex of wherein M is Nd or Gd.5. The lanthanide metal complex of wherein z is 1.6. A catalyst composition comprising the lanthanide metal complex of and a catalyst activator.7. The catalyst composition of wherein said catalyst activator comprises an alkylating agent.8. The catalyst composition of wherein said alkylating agent is an organoaluminum compound or an organomagnesium compound.9. The catalyst composition of wherein said catalyst activator comprises a non-coordinating anion.10. The catalyst composition of wherein said catalyst activator comprises a non-coordinating anion precursor.11. A process for providing a polymer claim 6 , said process comprising contacting one or more ethylenically unsaturated hydrocarbon monomers with the catalyst composition of claim 6 , thereby providing said polymer.12. The process of wherein said one or more ethylenically unsaturated hydrocarbon monomers comprises at least one type of polyene.13. The process of wherein said at least one type of polyene comprises one or more conjugated dienes.14. The process of wherein said one or more ethylenically unsaturated hydrocarbon monomers further comprises at least one type of α-olefin.15. The process of further comprising reacting said polymer with a functionalizing agent so as to provide terminal functionality to said polymer.17. The catalyst composition of wherein Ris a halogen atom.18. The catalyst composition of wherein M is Nd or Gd and z is 1.19. The catalyst composition of wherein said catalyst activator comprises an alkylating agent selected from organoaluminum compounds and organomagnesium compounds.20. The catalyst composition ...

Подробнее
Номер записи: 15
20-03-2014 дата публикации

DISPERSING AGENT FOR INORGANIC FILLERS AND METHOD OF PRODUCING SAME

Номер: US20140080978A1
Автор: Hattori Makoto, Matsumoto Hironari, Miyano Akira, Noda Ippei, Ohi Yuji
Принадлежит:

The invention provides dispersing agents for inorganic fillers capable of uniformly dispersing inorganic fillers in a substrate such as made of a rubber or resin material such that molded products with improved mechanical strength and abrasion resistance can be produced from such a substrate material and more specifically that rubber compositions with improved abrasion resistance and workability can be obtained and that automobile tires with improved low fuel consumption and handling stability can be produced from such rubber compositions, as well as a method of producing such dispersing agents characterized as using a modified conjugated diene polymer obtained by introducing specified structural units with improved mutual reaction with inorganic fillers into a conjugated diene polymer having affinity with rubber and resin materials. 2. The dispersing agent for inorganic fillers of wherein said modified conjugated diene polymer has said Structural Unit A and said Structural Unit B introduced into a conjugated diene polymer.3. The dispersing agent for inorganic fillers of wherein R-Rare each a hydrocarbon group with 1-11 carbon atoms.4. The dispersing agent for inorganic fillers of wherein R-Rare each a hydrocarbon group with 1-4 carbon atoms.5. The dispersing agent for inorganic fillers of wherein X-Xare each Si.6. The dispersing agent for inorganic fillers of wherein said conjugated diene polymer is obtained by polymerizing or copolymerizing one or more of monomers selected from the group consisting of 1 claim 5 ,3-butadiene claim 5 , isoprene claim 5 , 1 claim 5 ,3-pentadiene claim 5 , 1 claim 5 ,4-pentadiene claim 5 , cyclopentadiene claim 5 , 2 claim 5 ,3-dimethyl-1 claim 5 ,3-butadiene claim 5 , 1 claim 5 ,4-hexadiene claim 5 , 1 claim 5 ,5-hexadiene claim 5 , 1 claim 5 ,3-cyclohexadiene claim 5 , 1 claim 5 ,4-cyclohexadiene claim 5 , 1 claim 5 ,3-heptadiene claim 5 , 1 claim 5 ,6-heptadiene claim 5 , 2-methyl-1 claim 5 ,3-heptadiene claim 5 , 3-methyl-1 claim ...

Подробнее
Номер записи: 16
10-04-2014 дата публикации

FUNCTIONALIZED HIGH CIS-1,4-POLYBUTADIENE PREPARED USING NOVEL FUNCTIONALIZING AGENTS

Номер: US20140100339A1
Автор: FUJIMAKI Tatsuo, HATTORI Iwakazu, Masaki Koji, MILLER H. Jerrold, MORITA Koichi, OHUMURA Tetsuyo, Ozawa Yoichi, Sone Takuo
Принадлежит:

In general the present invention provides a functionalized polymer prepared by a process comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with a functionalizing agent defined by the formula (I) 2. The method of claim 1 , where the functionalizing agent is 4-(N claim 1 ,N-diethylamino) phenyl-4′-isocyanatophenylmethane.3. The method of claim 1 , where Z is selected from the group consisting of N claim 1 ,N-disubstituted aminophenyl groups claim 1 , cyclic amino groups claim 1 , imine groups claim 1 , amide groups claim 1 , isocyanate groups claim 1 , isothiocyanate groups claim 1 , and epoxy groups.4. The method of claim 1 , where E is O.5. The method of claim 1 , where E is S.6. The method of claim 1 , where Ris a hydrocarbylene group. This application is a continuation application of U.S. Non-Provisional application Ser. No. 13/711,701, filed on Dec. 12, 2012, which is a continuation application of U.S. Non-Provisional application Ser. No. 12/644,382, filed Dec. 22, 2009, which is a continuation application of U.S. Non-Provisional application Ser. No. 11/216,559, filed on Aug. 31, 2005, which is a continuation application of U.S. National-Stage application Ser. No. 10/381,829, filed on Sep. 22, 2003, which claims the benefit of International Application Serial No. PCT/US2000/030969, filed on Nov. 10, 2000, all of which are incorporated herein by reference.This invention relates to functionalizing agents, functionalized polymers prepared by contacting at least one functionalizing agent with a pseudo-living polymer, and processes for functionalizing these polymers. The functionalizing agents are generally defined by the formula A-R—Z, where A is a substituent that will undergo an addition reaction with a pseudo-living polymer, Ris a divalent organic group, and Z is a substituent that will react or interact with organic or inorganic fillers.Conjugated ...

Подробнее
Номер записи: 17
07-01-2016 дата публикации

METHOD FOR PRODUCING HYDROGENATED UNSATURATED POLYHYDROXYHYDROCARBON POLYMER

Номер: US20160002375A1
Автор: HASHIMOTO Hiroki, HAYAKAWA Yoshio, Nakamura Mitsuhiro
Принадлежит: NIPPON SODA CO., LTD.

Provided is a method for producing a hydrogenated unsaturated polyhydroxyhydrocarbon polymer capable of suppressing side reactions such as a hydrogenolysis reaction of a terminal hydroxyl group and achieving a high hydrogenation rate in a short reaction time. A hydrogenated unsaturated polyhydroxyhydrocarbon polymer is obtained by a method including: hydrogenating an unsaturated polyhydroxyhydrocarbon polymer under the presence of a hydrogenation catalyst and a reaction solvent in the following two stages (I) and (II): (I) carrying out a hydrogenation reaction in a temperature range of 80° C. to 130° C. until a hydrogenation rate of at least 30 mol % is achieved; and then (II) carrying out a hydrogenation reaction at a temperature higher than 130° C. until a hydrogenation rate of at least 98 mol % is achieved. 1. A method for producing a hydrogenated unsaturated polyhydroxyhydrocarbon polymer comprising:hydrogenating an unsaturated polyhydroxyhydrocarbon polymer in a hydrogen atmosphere under the presence of a hydrogenation catalyst and a reaction solvent in the following two stages (I) and (II):(I) carrying out a hydrogenation reaction in a temperature range of 80° C. to 130° C. until a hydrogenation rate of at least 30 mol % is achieved; and then(II) carrying out a hydrogenation reaction at a temperature higher than 130° C. until a hydrogenation rate of at least 98 mol % is achieved.2. The method according to claim 1 , wherein a hydrogen pressure in stage (I) is equal to or less than 6 MPa.3. The method according to claim 1 , wherein a hydrogen pressure in stage (II) is equal to or more than 2 MPa.4. The method according to claim 1 , wherein the hydrogenation catalyst is at least one selected from the group consisting of a nickel-based catalyst claim 1 , a cobalt-based catalyst claim 1 , a ruthenium-based catalyst claim 1 , a rhodium-based catalyst claim 1 , a palladium-based catalyst and a platinum-based catalyst. The present invention relates to a method for ...

Подробнее
Номер записи: 18
05-01-2017 дата публикации

Rubber composition, modified polymer, and tire

Номер: US20170002101A1
Автор: Manabu Kato, Ryota Takahashi, Takahiro Okamatsu, Yoshiaki Kirino
Принадлежит: Yokohama Rubber Co Ltd

An object of the present invention is to provide a modified polymer that can realize a rubber composition having excellent low heat build-up and that has excellent productivity, a rubber composition containing the modified polymer, and a tire produced using the rubber composition. The modified polymer of the present invention is obtained by reacting a modifier having a nitrone group and a carboxy group with a conjugated diene polymer not containing a tetrasubstituted olefin and/or a trisubstituted olefin.

Подробнее
Номер записи: 19
14-01-2016 дата публикации

Modified Conjugated Diene Polymer, Method for Producing Same, and Rubber Composition Using Same

Номер: US20160009834A1
Автор: Kanou Yuuto, Kimura Masanobu, Murakami Masato, Okamoto Naomi, Suzuki Michinori, Takahashi Yuuki
Принадлежит:

A modified conjugated diene polymer and a method for producing the same. A rubber composition using the same. A modified conjugated diene polymer obtained by polymerizing a conjugated diene compound using a catalyst including from (A) an yttrium compound having a bulky ligand represented by general formula (1), (B) an ionic compound formed of a non-coordinating anion and a cation, and (C) an organic metal compound of an element selected from the group consisting of group 2, group 12 and group 13 of the periodic table and modifying the conjugated diene polymer with a carbonyl compound, a method for producing the same, and a rubber composition using the same. 2. The modified conjugated diene polymer according to claim 1 , wherein the carbonyl compound is at least one selected from the group consisting of carbonyl compounds having an amino group and carbonyl compounds having an alkoxy group.3. The modified conjugated diene polymer according to claim 2 , wherein the carbonyl compound is 4 claim 2 ,4′-bisdialkylaminobenzophenone.4. The modified conjugated diene polymer according to claim 2 , wherein the carbonyl compound is 4 claim 2 ,4′-dialkoxybenzophenone.5. The modified conjugated diene polymer according to claim 1 , wherein claim 1 , when the conjugated diene compound is polymerized claim 1 , the molecular weight is adjusted by a compound selected from the group consisting of (1) hydrogen claim 1 , (2) metal hydride compounds and (3) organic metal hydride compounds.6. The modified conjugated diene polymer according to claim 1 , wherein the conjugated diene polymer is polybutadiene having 99% or more of cis-1 claim 1 ,4-structure.7. The modified conjugated diene polymer according to claim 1 , wherein the conjugated diene polymer is cis-1 claim 1 ,4-polybutadiene having a ratio of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn) (Mw/Mn) of 1.5 or more and less than 3.8. The modified conjugated diene polymer according to claim 1 , ...

Подробнее
Номер записи: 20
14-01-2016 дата публикации

Catalyst for Conjugated Diene Polymerization, Conjugated Diene Polymer and Modified Conjugated Diene Polymer Produced Using the Same, Production Methods Thereof, Rubber Composition for Tire, and Rubber Composition for Rubber Belt

Номер: US20160009835A1
Автор: Anbe Mitsuharu, Murakami Masato, Okamoto Naomi, Shiba Koji, Suzuki Michinori, TANAKA Masahiro
Принадлежит:

Provided are a catalyst for a conjugated diene polymerization capable of producing a conjugated diene polymer having a high content of cis-1,4-structures with a high activity, a conjugated diene polymer and a modified conjugated diene polymer using the same, production methods thereof, a rubber composition for a tire, and a rubber composition for a rubber belt. Described are a catalyst for a conjugated diene polymerization including: a non-metallocene type gadolinium compound (A) represented by the general formula (1); an ionic compound (B) formed of a non-coordinating anion and a cation; and an organic metal compound (C) of an element selected from the group consisting of a group 2, a group 12, and a group 13 of the periodic table, a conjugated diene polymer and a modified conjugated diene polymer obtained using the same, production methods thereof, a rubber composition for a tire, and a rubber composition for a rubber belt. 137.-. (canceled)391. A conjugated diene polymer obtained by polymerizing a conjugated diene compound using the catalyst for a conjugated diene polymerization according to claim .413. The conjugated diene polymer composition according to claim , wherein the rubber-reinforcing agent (γ) is a carbon black.423. The conjugated diene polymer composition according to claim , wherein the molecular weight of the conjugated diene compound is adjusted with a compound selected from the group consisting of (1) a hydrogen , (2) a metal hydride compound , (3) a hydrogenated organic metal compound.433. The conjugated diene polymer composition according to claim , wherein the conjugated diene compound is a 1 ,3-butadiene.443. The conjugated diene polymer composition according to claim , which is a rubber composition for a tire , wherein the rubber-reinforcing agent (γ) is included in an amount of 30 to 80 parts by mass based on 100 parts by mass of the rubber components (α)+(β).457. The conjugated diene polymer composition according to claim , wherein the ...

Подробнее
Номер записи: 21
14-01-2016 дата публикации

RUBBER COMPOSITION FOR TIRE TREAD, AND PNEUMATIC TIRE USING SAME

Номер: US20160009843A1
Автор: GOTO Yoshihiro, Mihara Satoshi, Sato Masaki
Принадлежит:

A rubber composition for a tire tread comprising: a diene rubber; a silica having an NSA of from 194 to 225 m/g and a CTAB of from 180 to 210 m/g; and a polysiloxane represented by the average composition formula of formula (1) and contained in an amount of from 1 to 20 mass % with respect to the quantity of silica. (A)(B)(C)(D)(R)SiO. Also provided is a pneumatic tire having tire treads formed using the rubber composition. 1. A rubber composition for a tire tread comprising a diene rubber , silica , and a sulfur-containing silane coupling agent;{'sup': 2', '2, 'a nitrogen adsorption specific surface area of the silica being from 194 to 240 m/g; a CTAB specific surface area of the silica being from 180 to 215 m/g; a content of the silica being from 60 to 200 parts by mass per 100 parts by mass of the diene rubber;'} {'br': None, 'sub': a', 'b', 'c', 'd', 'e', '(4-2a-b-c-d-e)/2, 'sup': '1', '(A)(B)(C)(D)(R)SiO\u2003\u2003(1)'}, 'the sulfur-containing silane coupling agent being a polysiloxane represented by the following formula (1); and a content of the sulfur-containing silane coupling agent being from 1 to 20 mass % with respect to the content of the silica;'}{'sup': '1', 'formula (1) being an average composition formula, wherein A is a divalent organic group containing a sulfide group; B is a monovalent hydrocarbon group having from 5 to 10 carbon atoms; C is a hydrolyzable group; D is an organic group containing a mercapto group; Ris a monovalent hydrocarbon group having from 1 to 4 carbon atoms; and a to e satisfy the relational expressions 0≦a<1, 0≦b<1, 0 Подробнее

Номер записи: 22
27-01-2022 дата публикации

MICROORGANISMS AND METHODS FOR THE BIOSYNTHESIS OF BUTADIENE

Номер: US20220025411A1
Автор: Burgard Anthony P., Burk Mark J., Osterhout Robin E., Pharkya Priti, Sun Jun
Принадлежит:

The invention provides non-naturally occurring microbial organisms having a butadiene pathway. The invention additionally provides methods of using such organisms to produce butadiene. 1. A non-naturally occurring microbial organism , comprising a microbial organism having a butadiene pathway comprising at least one exogenous nucleic acid encoding a butadiene pathway enzyme expressed in a sufficient amount to produce butadiene , said butadiene pathway comprising a butadiene synthase , an acetyl-CoA:acetyl-CoA acyltransferase , an acetoacetyl-CoA reductase , a 3-hydroxybutyryl-CoA dehydratase , a crotonyl-CoA reductase (aldehyde forming) , a crotonaldehyde reductase (alcohol forming) , a crotyl alcohol kinase , a 2-butenyl-4-phosphate kinase , a crotonyl-CoA hydrolase , synthetase , or transferase , a crotonate reductase , a crotonyl-CoA reductase (alcohol forming) , a glutaconyl-CoA decarboxylase , a glutaryl-CoA dehydrogenase , an 3-aminobutyryl-CoA deaminase , a 4-hydroxybutyryl-CoA dehydratase or a crotyl alcohol diphosphokinase.2. The non-naturally occurring microbial organism of claim 1 , wherein said microbial organism comprises two exogenous nucleic acids each encoding a butadiene pathway enzyme.3. The non-naturally occurring microbial organism of claim 1 , wherein said microbial organism comprises three exogenous nucleic acids each encoding a butadiene pathway enzyme.4. The non-naturally occurring microbial organism of claim 1 , wherein said microbial organism comprises four exogenous nucleic acids each encoding a butadiene pathway enzyme.5. The non-naturally occurring microbial organism of claim 1 , wherein said butadiene pathway comprises an acetyl-CoA:acetyl-CoA acyltransferase claim 1 , an acetoacetyl-CoA reductase claim 1 , a 3-hydroxybutyryl-CoA dehydratase claim 1 , a crotonyl-CoA reductase (aldehyde forming) claim 1 , a crotonaldehyde reductase (alcohol forming) claim 1 , a crotyl alcohol kinase claim 1 , a 2-butenyl-4-phosphate kinase and a ...

Подробнее
Номер записи: 23
08-01-2015 дата публикации

METHOD OF FORMING A CURED ELASTOMER AND ARTICLES OF THE CURED ELASTOMER

Номер: US20150011336A1
Автор: Chen John C.
Принадлежит: Nike, Inc.

A cured elastomer golf ball component is made by heating an elastomer compound containing an ethylenically unsaturated elastomer, an ethylenically unsaturated monomer, and first and second free radical initiators to a first crosslinking temperature Tin a compression mold and partially crosslinking the elastomer, then heating to a second crosslinking temperature Tand curing the elastomer component of the golf ball. Either: (i) the first initiator has a half-life of about 0.2-5 minutes at T, the second initiator has a half-life of about 0.2-5 minutes at T, and Tis higher Tby at least about 30° C.; or (ii) the second initiator's one-minute half-life temperature is at least about 30° C. higher than the first initiator's one-minute half-life temperature, Tis within about 20° C. of the first initiator's one-minute half-life temperature, and Tis within about 20° C. of the second initiator's one-minute half-life temperature. 1. A method of making a cured elastomer component of a golf ball , comprising:heating an the elastomer compound comprising an ethylenically unsaturated elastomer, an ethylenically unsaturated monomer, a first free radical initiator, and a second free radical initiator to a first crosslinking temperature in a compression mold and partially crosslinking the elastomer to form a precursor compound;further heating the precursor compound in the compression mold to a second crosslinking temperature and further crosslinking the elastomer to form a cured elastomer component of the golf ball, wherein either:(i) the first free radical initiator has a half-life of from about 0.2 minutes to about 5 minutes at the first crosslinking temperature, the second free radical initiator has a half-life of from about 0.2 minutes to about 5 minutes at the second crosslinking temperature, and the second crosslinking temperature is higher than the first crosslinking temperature by at least about 30° C.; or(ii) the first free radical initiator has a first one-minute half-life ...

Подробнее
Номер записи: 24
11-01-2018 дата публикации

Aged Lanthanide-Based Catalyst Systems And Their Use In The Preparation Of Cis-1,4-Polydienes

Номер: US20180009918A1
Автор: Abell Joshua, Dickstein Joshua S., Kocsis Laura S., Luo Steven, McCauley Kevin
Принадлежит: BRIDGESTONE CORPORATION

A method for preparing cis-1,4-polydienes, the method comprising the steps of preparing a preformed, active lanthanide-based catalyst, aging the active lanthanide-based catalyst for more than 5 days to thereby formed an aged catalyst, and introducing the aged catalyst and conjugated diene monomer to be polymerized to thereby form an active polymerization mixture in which the conjugated diene monomer is polymerized to form a polydiene having a reactive chain end. 1. A method for preparing cis-1 ,4-polydienes , the method comprising the steps of:(i) preparing a preformed, active lanthanide-based catalyst;(ii) aging the active lanthanide-based catalyst for more than 5 days to thereby formed an aged catalyst; and(iii) introducing the aged catalyst and conjugated diene monomer to be polymerized to thereby form an active polymerization mixture in which the conjugated diene monomer is polymerized to form a polydiene having a reactive chain end.2. The method of claim 1 , where said step of preparing includes combining a lanthanide-containing compound claim 1 , an alkylating agent claim 1 , a conjugated diene monomer claim 1 , and a halogen source.3. The method of claim 1 , where said step of preparing includes combining a lanthanide carboxylate claim 1 , an aluminum hydride claim 1 , a conjugated diene monomer claim 1 , and an organometallic halide.4. The method of claim 1 , where said step of preparing includes combining a neodymium versatate claim 1 , diisobutylaluminum hydride claim 1 , 1 claim 1 ,3-butadiene claim 1 , and ethylaluminum sesquichloride.5. The method of claim 2 , where the molar ratio of the alkylating agent to the lanthanide-containing compound is from about 1:1 to about 500:1 claim 2 , the molar ratio of halogen atoms in the halogen source to the moles of lanthanide atoms in the lanthanide-containing compound is from about 0.5:1 to about 20:1 claim 2 , and the amount of preformation conjugated diene monomer is from about 1 to about 500 moles of ...

Подробнее
Номер записи: 25
11-01-2018 дата публикации

Cis-1,4-Polydienes With Improved Cold Flow Resistance

Номер: US20180009919A1
Автор: Dickstein Joshua S.
Принадлежит: BRIDGESTONE CORPORATION

A method for preparing cis-1,4-polydienes having useful resistance to cold flow, the method comprising the steps of preparing a polymerization system including a reactive polymer by introducing a lanthanide-based catalyst and a conjugated diene monomer and adding a Lewis acid to the polymerization system including a reactive polymer. 1. A method for preparing cis-1 ,4-polydienes having useful resistance to cold flow , the method comprising the steps of:(i) preparing a polymerization system including a reactive polymer by introducing a lanthanide-based catalyst and a conjugated diene monomer; and(ii) adding a Lewis acid to the polymerization system including a reactive polymer.2. The method of claim 1 , where the lanthanide-based catalyst is preformed.3. The method of claim 2 , where the lanthanide-based catalyst is aged for at least 1 hour.4. The method of claim 2 , where the lanthanide-based catalyst is aged for at least 30 days.5. The method of claim 2 , where the lanthanide-based catalyst comprises a lanthanide carboxylate claim 2 , an aluminum hydride claim 2 , and an organometallic halide.6. The method of claim 1 , where the lanthanide-based catalyst includes (a) a lanthanide-containing compound claim 1 , (b) an alkylating agent claim 1 , and (c) a halogen source.7. The method of claim 6 , where the alkylating agent includes an aluminoxane and an organoaluminum compound represented by the formula AlRX claim 6 , where each R claim 6 , which may be the same or different claim 6 , is a monovalent organic group that is attached to the aluminum atom via a carbon atom claim 6 , where each X claim 6 , which may be the same or different claim 6 , is a hydrogen atom claim 6 , a halogen atom claim 6 , a carboxylate group claim 6 , an alkoxide group claim 6 , or an aryloxide group claim 6 , and where n is an integer of 1 to 3.8. The method of claim 1 , where said step of polymerizing monomer takes place within a polymerization mixture including less than 20% by weight of ...

Подробнее
Номер записи: 26
08-01-2015 дата публикации

POLYMER AND METHOD FOR PRODUCING SAME, RUBBER COMPOSITION CONTAINING POLYMER, AND TIRE HAVING RUBBER COMPOSITION

Номер: US20150011701A1
Автор: Kaita Shojiro, Matsushita Junko, TAMAKI Satoru
Принадлежит: BRIDGESTONE CORPORATION

The polymer of the present invention is a synthesized polyisoprene or an isoprene copolymer. The polymer has a number average molecular weight (Mn) of 1.5 million or more when measured by using gel permeation chromatography (GPC). 1. A polymer being a synthetic polyisoprene or isoprene copolymer , the polymer having a number average molecular weight (Mn) of 1.5 million or more when measured by gel permeation chromatography (GPC).2. The polymer according to claim 1 , wherein the polymer has a gel fraction of 20% or less.3. The polymer according to claim 1 , wherein the polymer contains a catalyst residue in an amount of 300 ppm or less.4. The polymer according to claim 1 , wherein the polymer has a nitrogen content of less than 0.02 mass %.5. A method of producing the polymer according to claim 1 , comprising coupling at least part of polymer chains of the polymer through a coupling reaction.6. A rubber composition comprising a rubber component claim 1 , the rubber component at least containing the polymer according to .7. The rubber composition according to claim 6 , wherein the rubber component contains the polymer in an amount of 15 to 100 mass % in total.8. The rubber composition according to claim 6 , further comprising a filler claim 6 , wherein the rubber composition contains the filler in an amount of 10 to 75 mass parts per 100 mass parts of the rubber component.9. A tire having the rubber composition according to .10. A tire comprising a tread member having the rubber composition according to . The present invention relates to a polymer and a method for producing the same, a rubber composition containing the polymer, and a tire having the rubber composition; and in particular, to a polymer capable of providing a crosslinked rubber composition with improved durability (i.e., breaking resistance and abrasion resistance) and a method for producing such a polymer, a rubber composition containing the polymer, and a tire having the rubber composition.In light of ...

Подробнее
Номер записи: 27
08-01-2015 дата публикации

METHOD OF FORMING A CURED ELASTOMER AND ARTICLES OF THE CURED ELASTOMER

Номер: US20150011711A1
Автор: Chen John C.
Принадлежит: NIKE, Inc

A cured elastomer is formed by partially crosslinking an elastomer compound containing first and second free radical initiators at a first crosslinking temperature T, then further crosslinking at a second crosslinking temperature T. Either: (i) the first free radical initiator's half-life is about 0.2-5 minutes at T, the second free radical initiator's half-life is about 0.2-5 minutes at T, and Tis higher than Tby at least about 30° C.; or (ii) the second free radical initiator's one-minute half-life temperature is higher than the first free radical initiator's one-minute half-life temperature by at least about 30° C., Tis within about 20° C. of the first one-minute half-life temperature, and Tis within about 20° C. of the second one-minute half-life temperature. 1. A method of forming a cured elastomer article , comprising:(a) introducing into a mold an elastomer compound comprising an elastomer, a first free radical initiator, and a second free radical initiator;(b) heating the elastomer compound in the mold to a first crosslinking temperature and partially crosslinking the elastomer to form a precursor compound and(c) further heating the precursor compound in the mold to a second crosslinking temperature and further crosslinking the elastomer to form the cured elastomer article, wherein either:(i) the first free radical initiator has a half-life of from about 0.2 minutes to about 5 minutes at the first crosslinking temperature, the second free radical initiator has a half-life of from about 0.2 minutes to about 5 minutes at the second crosslinking temperature, and the second crosslinking temperature is higher than the first crosslinking temperature by at least about 30° C.; or(ii) the first free radical initiator has a first one-minute half-life temperature, the second free radical initiator has a second one-minute half-life temperature that is higher than the first one-minute half-life temperature by at least about 30° C., the first crosslinking temperature is ...

Подробнее
Номер записи: 28
03-02-2022 дата публикации

RUBBER COMPOSITION COMPRISING ESTERS FROM RENEWABLE SOURCES AS PLASTICIZERS

Номер: US20220033624A1
Автор: ARORA Zubin, CATALDO Franco, GENIN Francine, PLANCQ Louis
Принадлежит: TOTAL MARKETING SERVICES

The present invention relates to a rubber composition for tire applications comprising: rubber polymer(s) comprising at least optionally-functionalized styrene-butadiene rubber (SBR) and at least one rubber selected from polybutadiene rubber (BR), natural rubber (NR), polyisoprene rubber (IR) and mixtures thereof, and at least one ester derived from renewable sources resulting from the esterification of trimer and/or dimer acids having the formula A-(COOH)q, with q being 2 or 3 and A being an acyclic, cyclic or polycyclic, saturated or unsaturated, linear or branched hydrocarbon group having from 3 to 69 carbon atoms, with acyclic or cyclic, saturated or unsaturated, linear or branched alcohols. 115-. (canceled)16. Rubber composition for tire applications comprising:rubber polymers comprising at least optionally functionalized styrene-butadiene rubber (SBR) and at least one rubber selected from polybutadiene rubber (BR), natural rubber (NR), polyisoprene rubber (IR) and mixtures thereof, and{'sub': q', 'q, 'at least one acid derived from renewable sources selected from trimer and/or dimer acids having the formula A-(COOH), with q being 2 or 3 and A being identical or different, acyclic, cyclic or polycyclic, saturated or unsaturated, linear or branched hydrocarbon groups having from 3 to 69 carbon atoms or at least one ester derived from renewable sources resulting from the esterification of trimer and/or dimer acids having the formula A-(COOH), with q being 2 or 3 and A being identical or different, acyclic, cyclic or polycyclic, saturated or unsaturated, linear or branched hydrocarbon groups having from 3 to 69 carbon atoms, with acyclic or cyclic, saturated or unsaturated, linear or branched alcohols,'}said rubber polymers comprising:from 20 to 90% by weight of styrene-butadiene rubber(s) optionally functionalized andfrom 10 to 80% by weight of at least one rubber selected from polybutadiene rubber (BR), natural rubber (NR), polyisoprene rubber (IR) and mixtures ...

Подробнее
Номер записи: 29
19-01-2017 дата публикации

POLYMERS FUNCTIONALIZED WITH HETEROCYCLIC NITRILE COMPOUNDS

Номер: US20170015760A1
Автор: Luo Steven, Tanaka Ryouji, Tani Kouichirou
Принадлежит: BRIDGESTONE CORPORATION

A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound. 1. A method for preparing a functionalized polymer , the method comprising the steps of:(i) preparing a reactive polymer with a lanthanide-based catalyst system; and(ii) reacting the reactive polymer with a heterocyclic nitrile compound; where the heterocyclic nitrile compound includes a heterocycle with multiple nitrogen atoms.2. The method of claim 1 , where the heterocycle with multiple nitrogen atoms is selected from the group consisting of pyrazinyl claim 1 , 2-pyrimidinyl claim 1 , 4-pyrimidinyl claim 1 , 5-pyrimidinyl claim 1 , 3-pyridazinyl claim 1 , 4-pyridazinyl claim 1 , N-methyl-2-imidazolyl claim 1 , N-methyl-4-imidazolyl claim 1 , N-methyl-5-imidazolyl claim 1 , N-methyl-3-pyrazolyl claim 1 , N-methyl-4-pyrazolyl claim 1 , N-methyl-5-pyrazolyl claim 1 , N-methyl-2-imidazolin-2-yl claim 1 , N-methyl-2-imidazolin-4-yl claim 1 , N-methyl-2-imidazolin-5-yl claim 1 , N-methyl-2-pyrazolin-3-yl claim 1 , N-methyl-2-pyrazolin-4-yl claim 1 , N-methyl-2-pyrazolin-5-yl claim 1 , 1-phthalazinyl claim 1 , 2-quinazolinyl claim 1 , 4-quinazolinyl claim 1 , 2-quinoxalinyl claim 1 , 3-cinnolinyl claim 1 , 4-cinnolinyl claim 1 , 1-methylindazol-3-yl claim 1 , 1 claim 1 ,5-naphthyridin-2-yl claim 1 , 1 claim 1 ,5-naphthyridin-3-yl claim 1 , 1 claim 1 ,5-naphthyridin-4-yl claim 1 , 1 claim 1 ,8-naphthyridin-2-yl claim 1 , 1 claim 1 ,8-naphthyridin-3-yl claim 1 , 1 claim 1 ,8-naphthyridin-4-yl claim 1 , 1-methylbenzimidazol-2-yl claim 1 , N-methyl-β-carbolin-1-yl claim 1 , N-methyl-β-carbolin-3-yl claim 1 , N-methyl-β-carbolin-4-yl claim 1 , 1 claim 1 ,7-phenanthrolin-2-yl claim 1 , 1 claim 1 ,7-phenanthrolin-3-yl claim 1 , 1 claim 1 ,7-phenanthrolin-4-yl claim 1 , 1 claim 1 ,10-phenanthrolin-2-yl claim 1 , 1 claim 1 ,10-phenanthrolin-3-yl claim 1 , 1 claim 1 ,10-phenanthrolin-4-yl claim 1 , ...

Подробнее
Номер записи: 30
19-01-2017 дата публикации

Novel anionic polymerization initiator and method for preparing conjugated diene-based polymer using same

Номер: US20170015763A1
Автор: Dae-June Joe, Min-Soo Kim, Won-Mun Choi
Принадлежит: LG Chem Ltd

Disclosed are an anionic polymerization initiator, which is a reaction product of an organometallic compound and a compound including an alkyl chain having a tertiary amino functional group, and a method of preparing a conjugated diene-based copolymer using the same.

Подробнее
Номер записи: 31
19-01-2017 дата публикации

POLYBUTADIENE

Номер: US20170015766A1
Автор: AMBE Mitsuharu, Kanou Yuuto, SHODA Takeshi
Принадлежит: UBE INDUSTRIES, LTD.

The present invention provides a polybutadiene having improved workability and abrasion resistance. A polybutadiene according to the present invention has: (A) a Mooney viscosity (ML) being 43 or more; (B) a ratio (Tcp/ML) of 5 wt % toluene solution viscosity (Tcp) to Mooney viscosity (ML) being 0.9 to 2.3; (C) a stress relaxation time (T80) being 10.0 to 40.0 seconds, which is a time until a torque is attenuated by 80% when the torque at the end of MLmeasurement is 100%; and (D) a molecular weight distribution (Mw/Mn) being 2.50 to 4.00. 1. A polybutadiene , which is produced by using a cobalt catalyst , having:{'sub': '1+4,100° C.', '(A) a Mooney viscosity (ML) being 43 to 70;'}{'sub': 1+4,100° C.', '1+4,100° C., '(B) a ratio (Tcp/ML) of 5 wt % toluene solution viscosity (Tcp) to Mooney viscosity (ML) being 0.9 to 1.7;'}{'sub': '1+4,100° C.', '(C) a stress relaxation time (T80) being 10.0 to 40.0 seconds, which is a time until a torque is attenuated by 80% when the torque at the end of MLmeasurement is 100%;'}(D) a molecular weight distribution (Mw/Mn) being 2.50 to 4.00; and(F) a ratio of cis-structure in microstructural analysis being 94.0 to 98 mol %.2. The polybutadiene according to claim 1 , further having:{'sup': 4', '4, '(E) a weight average molecular weight (Mw) being 40.0×10to 75.0×10,'}(G) a 5 wt % toluene solution viscosity (Tcp) being 42 to 160; and{'sup': 4', '4, '(H) a number average molecular weight (Mn) being 12.5×10to 30.0×10.'}3. (canceled) The present invention relates to a polybutadiene having improved workability and abrasion resistance, which can be used for not only tires but also antivibration rubbers, belts, hoses, seismic isolation rubbers, rubber crawlers and footwear members by compounding it with a rubber composition.Generally, polybutadienes are superior to the other rubbers in abrasion resistance, but are inferior in workability. Since the abrasion resistance and the workability have a trade-off relation with each other, if one is ...

Подробнее
Номер записи: 32
15-01-2015 дата публикации

Polymers Functionalized With Lactones Or Thiolactones Containing A Protected Amino Group

Номер: US20150018488A1
Автор: Steven Luo, Zengquan Qin
Принадлежит: Bridgestone Corp

A method for preparing a functionalized polymer, the method comprising the steps, of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a lactone or thiolactone that contains a protected amino group.

Подробнее
Номер записи: 33
17-01-2019 дата публикации

METHOD OF PREPARING ABS-BASED RESIN COMPOSITION AND METHOD OF MANUFACTURING ABS-BASED INJECTION-MOLDED ARTICLE INCLUDING THE SAME

Номер: US20190016841A1
Автор: CHUNG Sun Haeng, HAN Su Jeong, HEO Jae Won, JEONG Young Hwan, KIM Yoo Vin, KIM Young Min, LEE Jin Hyoung, SUK Jae Min
Принадлежит:

The present invention relates to a method of preparing an ABS-based resin composition and a method of manufacturing an ABS-based injection-molded article including the same. More particularly, the present invention provides a method of preparing an ABS-based resin composition using a multimeric acid of unsaturated fatty acid or a metal salt thereof, as an emulsifier, in a diene-based rubber latex polymerization step and an ABS-based graft polymerization step. In accordance with the present invention, when an ABS-based resin composition is prepared using a multimeric acid of unsaturated fatty acid or a metal salt thereof as an emulsifier, stability of polymerization is secured and surface characteristics, such as surface gloss or sharpness, of an ABS-based injection-molded article are improved. 1. A method of preparing an ABS-based resin composition , the method comprising:a) a step of polymerizing 100 parts by weight of a conjugated diene based monomer, 0.5 to 5 parts by weight of an emulsifier, and 0.01 to 6 parts by weight of a water-soluble polymerization initiator;b) a step of adding 0.01 to 5 parts by weight of an emulsifier thereto when a polymerization conversion rate is 60 to 85%, after step a);c) a step of terminating polymerization when a polymerization conversion rate is 90 to 99% to obtain a large-diameter diene-based rubber latex;d) a step of graft-polymerizing 100 parts by weight of a monomer mixture comprising 40 to 70% by weight (based on solid) of the large-diameter diene-based rubber latex, 15 to 35% by weight of an aromatic vinyl monomer, and 5 to 25% by weight of a vinyl cyan monomer with 0.01 to 3 parts by weight of an emulsifier, 0.01 to 3 parts by weight of an initiator, and 0.001 to 1 parts by weight of an oxidation-reduction catalyst;e) a step of terminating polymerization when a conversion rate of the graft polymerization is 90 to 99% to obtain an ABS-based graft copolymer; andf) a step of mixing the ABS-based graft copolymer and an ...

Подробнее
Номер записи: 34
17-01-2019 дата публикации

METHODS, CELLS AND REAGENTS FOR PRODUCTION OF ISOPRENE, DERIVATIVES AND INTERMEDIATES THEREOF

Номер: US20190017076A1
Автор: Conradie Alex Van Eck
Принадлежит:

This application describes methods, including non-naturally occurring methods, for biosynthesizing 3-hydroxy-3-methylglutaryl-coA and intermediates thereof, as well as non-naturally occurring hosts for producing 3-hydroxy-3-methylglutaryl-coA. This application also describes methods, including non-naturally occurring methods, for biosynthesizing isoprene and intermediates thereof, as well as non-naturally occurring hosts for producing isoprene. 112-. (canceled)13. A non-naturally occurring host capable of producing 3-hydroxy-3-methylglutaryl-CoA , said host comprising:(a) at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 1.2.7.7 or EC 1.2.1.- enzyme; or at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 1.2.1.39 or EC 1.2.1.5 enzyme;', 'at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 6.2.1.2. enzyme; or (c) both (a) and (b); and, '(b) at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 4.1.1.74 or EC 4.1.1.43 enzyme;'}at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 1.3.8.4 enzyme;at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 6.4.1.4 enzyme; andat least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 4.2.1.18 enzyme.14. The host of claim 13 , wherein said host is capable of producing isoprene and comprises:at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 1.1.1.34 enzyme;at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 2.7.1.36 enzyme;at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 2.7.4.2 enzyme;at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 4.1.1.33 enzyme;at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 5.3.3.2 ...

Подробнее
Номер записи: 35
21-01-2021 дата публикации

Propylene-Based Polymer Additives for Improved Tire Tread Performance

Номер: US20210017369A1
Автор: Blok Edward J., Dias Anthony J., Nguyen Paul T.Q., Tsou Andy H., Wurzinger Erick E
Принадлежит:

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 30 to about 50 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 40 to about 60 phr of styrene/butadiene copolymer; about 0 to about 20 phr of natural rubber or polyisoprene; about 0 to about 30 phr of a processing oil; about 10 to about 30 phr of a hydrocarbon resin; about 50 to about 75 phr of a filler; a curative agent; an antioxidant; a silane coupling agent; and about 5 to about 30 phr of a propylene-ethylene-diene terpolymer containing from about 2 wt % to about 30 wt % of ethylene and/or C-Cα-olefins derived units. 1. An elastomeric composition comprising , per 100 parts by weight of rubber (phr):about 30 to about 50 phr of polybutadiene having a cis-1,4 linkage content of at least 95%;about 40 to about 60 phr of a styrene/butadiene copolymer;about 0 to about 20 phr of natural rubber or polyisoprene;about 0 to about 30 phr of a processing oil;about 10 to about 30 phr of a hydrocarbon resin;about 50 to about 75 phr of a filler;a curative agent;a silane coupling agent;an antioxidant; and{'sub': 4', '20, 'about 5 to about 40 phr of a propylene-ethylene-diene terpolymer containing from about 2 to about 30 wt % of ethylene and/or C-Cα-olefins derived units.'}2. The elastomeric composition of claim 1 , wherein the propylene-ethylene-diene terpolymer is functionalized with bis-[3-(triethoxysilyl)-propyl]-tetrasulfide.3. The elastomeric composition of claim 1 , wherein the filler is a silica-based filler.4. The elastomeric composition of claim 1 , wherein the filler is a carbon black filler.5. The elastomeric composition of claim 1 , wherein the filler is blend of a silica-based filler and a carbon black filler.6. The elastomeric composition of claim 1 , wherein the propylene-ethylene-diene terpolymer is present in the amount of about 5 phr to about 25 phr.7. The elastomeric composition of claim 1 , wherein the ...

Подробнее
Номер записи: 36
26-01-2017 дата публикации

Polymers functionalized with imine compounds containing a protected thiol group

Номер: US20170022301A1
Автор: Joshua P. Abell, Steven Luo
Принадлежит: Bridgestone Corp

A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an imine compound containing a protected thiol group

Подробнее
Номер записи: 37
22-01-2015 дата публикации

Polymer, rubber composition containing polymer, crosslinked rubber composition obtained by crosslinking rubber composition, and tire having crosslinked rubber composition

Номер: US20150025173A1
Автор: Junko Matsushita, Satoru Tamaki, Shojiro Kaita
Принадлежит: Bridgestone Corp

Provided are: a polymer capable of providing a crosslinked rubber composition with improved durability (i.e., breaking resistance, abrasion resistance, and crack growth resistance) and a method for producing the same, a rubber composition containing the polymer, a crosslinked rubber composition obtained by crosslinking the rubber composition, and a tire having the crosslinked rubber composition. The polymer is either a synthesized polyisoprene or an isoprene copolymer, and contains a residual catalyst in an amount of 300 ppm or less.

Подробнее
Номер записи: 38
10-02-2022 дата публикации

FUNCTIONALIZED POLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE

Номер: US20220041771A1
Автор: Ensign Seth Cody, Woloszynek Robert Alan
Принадлежит:

A functionalized elastomer comprising the reaction product of a living elastomeric polymer and a polymerization terminator of formula I 1. A functionalized elastomer comprising the reaction product of a living elastomeric polymer and a polymerization terminator of formula I{'br': None, 'sup': 1', '2, 'sub': n', 'm, '[R]—B—[X—R]\u2003\u2003I'}where B is boron; X is oxygen or nitrogen;{'sup': '1', 'Ris independently vinyl, oxiranyl, phenyl, 1-alkenyl of 2 to 8 carbon atoms, alkyl of 1 to 8 carbon atoms including at least one halogen atom, 1-alkenyl of 2 to 8 carbon atoms including at least one halogen or one hydrogen;'}{'sup': 2', '2, 'Ris independently C1 to C8 alkyl, C8 to C14 aryl; or when m>1 Rmay be taken together to form a substituted or unsubstituted cyclic structure comprising 2 to 16 carbon atoms where the cyclic structure may be heterocyclic or non-heterocyclic;'}n is 1 or 2, m is 1 or 2, and n+m=3.2. The functionalized elastomer of claim 1 , wherein the living elastomer is derived from at least one of isoprene and butadiene claim 1 , and optionally from styrene.3. The functionalized elastomer of claim 1 , wherein the living elastomer is derived from butadiene.4. The functionalized elastomer of claim 1 , wherein the living elastomer is derived from butadiene and styrene.6. The functionalized elastomer of claim 1 , wherein the functionalized elastomer comprises repeat units of a diene monomer and optionally a vinyl aromatic monomer claim 1 , and the functionalized elastomer comprises at least 92 percent by weight of cis 1 claim 1 ,4 microstructure content based on the weight of the polydiene content of the functionalized elastomer7. The functionalized elastomer of claim 1 , wherein the functionalized elastomer comprises at least 95 percent by weight of cis 1 claim 1 ,4 microstructure content based on the weight of the polydiene content of the functionalized elastomer.8. The functionalized elastomer of claim 1 , wherein the functionalized elastomer comprises ...

Подробнее
Номер записи: 39
28-01-2021 дата публикации

Novel Host Cells and Methods for Producing Isopentenol from Mevalonate

Номер: US20210023947A1
Автор: Kang Aram, Lee Taek Soon
Принадлежит:

The present invention provides for a genetically modified host cell capable of producing isopentenol and/or 3-methyl-3-butenol, comprising (a) an increased expression of phosphomevalonate decarboxylase (PMD) (b) an increased expression of a phosphatase capable of converting isopentenol into 3-methyl-3-butenol, (c) optionally the genetically modified host cell does not express, or has a decreased expression of one or more of NudB, phosphomevalonate kinase (PMK), and/or PMD, and (d) optionally one or more further enzymes capable of converting isopentenol and/or 3-methyl-3-butenol into a third compound, such as isoprene. 1. A polypeptide having a phosphomevalonate decarboxylase (PMD) enzymatic activity , and encoding an amino acid sequence comprising (a) at least 70% identity with SEQ ID NO:1 , and (b) a histidine at position 74 , a phenylalanine at position 145 , a histidine at position 74 , or a phenylalanine at position 145 , corresponding to the numbering of SEQ ID NO:1.2. The polypeptide of claim 1 , wherein the amino acid sequence comprises (i) a histidine at position 74 claim 1 , (ii) a phenylalanine at position 145 claim 1 , or (iii) a histidine at position 74 and a phenylalanine at position 145.3. The polypeptide of claim 1 , wherein the amino acid sequence comprises the following amino acid residues: E at position 71 claim 1 , S at position 108 claim 1 , N at position 110 claim 1 , A at position 119 claim 1 , S at position 120 claim 1 , S at position 121 claim 1 , A at position 122 claim 1 , S at position 155 claim 1 , R at position 158 claim 1 , S at position 208 claim 1 , and D at position 302 corresponding to SEQ ID NO:1.4. The polypeptide of claim 1 , wherein the amino acid sequence comprises at least 80% identity with SEQ ID NO:1.5. The polypeptide of claim 4 , wherein the amino acid sequence comprises at least 90% identity with SEQ ID NO:1.6. The polypeptide of claim 5 , wherein the amino acid sequence comprises at least 95% identity with SEQ ID NO:1.7. ...

Подробнее
Номер записи: 40
23-01-2020 дата публикации

PROCESS FOR THE PREPARATION OF SYNDIOTACTIC 1,2-POLYBUTADIENE IN THE PRESENCE OF A CATALYTIC SYSTEM COMPRISING A PYRIDYL IRON COMPLEX

Номер: US20200024379A1
Автор: LEONE Giuseppe, Masi Francesco, Pampaloni Guido, RICCI Giovanni, Sommazzi Anna
Принадлежит: Versalis S.p.A.

Process for the preparation of syndiotactic 1,2-polybutadiene comprising polymerising 1,3-butadiene in the presence of a catalytic system comprising: —at least one pyridyl iron complex having the general formula (I), in which: —Rrepresents a hydrogen atom; or a methyl group; —Rrepresents a hydrogen atom; or is selected from linear or branched C-C, preferably C-C, alkyl groups; —X, identical or different to one another, represent a halogen atom such as, for example, chlorine, bromine, iodine; or are selected from linear or branched, C-C, preferably C-C, alkyl groups, —OCORgroups or —ORgroups in which Ris selected from linear or branched C-C, preferably C-C, alkyl groups; —n is 2 or 3; —at least one aluminoxane having the general formula (II), (R)-AI-O-[-AI(R)—O-]-AI-(R)(ll) in which R, Rand R, identical or different to one another, represent a hydrogen atom, or a halogen atom such as, for example, chlorine, bromine, iodine, fluorine; or are selected from linear or branched C-Calkyl groups, cycloalkyi groups, aryl groups, said groups being optionally substituted with one or more silicon atoms or germanium; and m is an integer ranging from 0 to 1000; in which the molar ratio between the aluminium present in the aluminoxane having the general formula (II) and the iron present in the pyridyl iron complex having the general formula (I) is ranging from 5 to 20, preferably ranging from 8 to 12. 2. Process for the preparation of syndiotactic 1 claim 1 ,2-polybutadiene according to claim 1 , in which in said pyridyl iron complex having the general formula (I):{'sub': '1', 'Rrepresents a hydrogen atom; or a methyl group;'}{'sub': '2', 'Rrepresents a hydrogen atom; or a methyl group, an ethyl group, an n-propyl group, an iso-propyl group;'}X, identical to one another, represent a halogen atom selected from chlorine, bromine, iodine;n is 2 or 3.3. Process for the preparation of syndiotactic 1 claim 1 ,2-polybutadiene according to claim 1 , in which said aluminoxane having the ...

Подробнее
Номер записи: 41
23-01-2020 дата публикации

METHOD OF MANUFACTURING RUBBER COMPOSITION

Номер: US20200024428A1
Автор: JUNG Yeong Min, Kim Jae Yun, PARK Soojung
Принадлежит:

A method of manufacturing a rubber composition is provided. The method includes: (a) allowing a mixture including a conjugated diene-based monomer to react in the presence of a first catalyst; (b) introducing a carboxylic acid-based compound into the product of the step (a) to deactivate the first catalyst; and (c) introducing a second catalyst and a conjugated diene-based monomer into the product of the step (b) and allowing the second catalyst and the conjugated diene-based monomer to react with the product of the step (b). 1. A method of manufacturing a rubber composition , comprising:(a) allowing a mixture comprising a conjugated diene-based monomer to react in the presence of a first catalyst;(b) introducing a carboxylic acid-based compound into the product of the step (a) to deactivate the first catalyst; and(c) introducing a second catalyst and a conjugated diene-based monomer into the product of the step (b) and allowing the second catalyst and the conjugated diene-based monomer to react with the product of the step (b).3. The method of claim 1 , wherein the conjugated diene-based monomer comprises one selected from the group consisting of 1 claim 1 ,3-butadiene claim 1 , 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene claim 1 , piperylene claim 1 , 3-butyl-1 claim 1 ,3-octadiene claim 1 , isoprene claim 1 , 2-phenyl-1 claim 1 ,3-butadiene claim 1 , and a combination of two or more types thereof.4. The method of claim 1 , wherein the first catalyst comprises a lanthanide complex compound claim 1 , an organoaluminum chloride compound claim 1 , and an organoaluminum compound.5. The method of claim 4 , wherein the organoaluminum chloride compound comprises one selected from the group consisting of diethyl aluminum chloride claim 4 , dimethyl aluminum chloride claim 4 , dipropyl aluminum chloride claim 4 , diisobutyl aluminum chloride claim 4 , dihexyl aluminum chloride claim 4 , dioctyl aluminum chloride claim 4 , ethyl aluminum dichloride claim 4 , methyl ...

Подробнее
Номер записи: 42
29-01-2015 дата публикации

Process For Producing Polydienes

Номер: US20150031845A1
Автор: Luo Steven, McCauley Kevin M., Qin Zengquan
Принадлежит: BRIDGESTONE CORPORATION

A method for producing a polydiene, the method comprising the steps of (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in the substantial absence of an organosulfide; and (ii) polymerizing conjugated diene monomer in the presence of the active catalyst and an organosulfide. 133-. (canceled)34. A method for producing a polydiene , the method comprising the steps of:(i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in the substantial absence of an organosulfide; and(ii) polymerizing conjugated diene monomer in the presence of the active catalyst and an organosulfide.35. The method of claim 34 , where the active catalyst is preformed.36. The method of claim 35 , where the active catalyst is preformed in the presence of conjugated diene monomer claim 35 , and where the amount of the lanthanide-containing compound employed in said step of forming an active catalyst is greater than 2 mmol of lanthanide-containing compound per 100 g of monomer.37. The method of claim 34 , where the active catalyst employed in said step of polymerizing includes less than 2 mmol of lanthanide-containing compound per 100 g of conjugated diene monomer.38. The method of claim 34 , where said step of forming takes place in the presence of less than 10 mole of the organosulfide per mole of lanthanide metal in said lanthanide-containing compound.39. The method of claim 34 , where said step of forming takes place in the complete absence of an organosulfide.40. The method of claim 34 , where the active catalyst is formed in situ in the presence of the conjugated diene monomer by introducing less than 2 mmol of lanthanide-containing compound per 100 g of the conjugated diene monomer.41. The method of claim 34 , where the alkylating agent includes methylaluminoxane.42. The method of claim 41 , where the halogen source includes a bromine-containing compound.43. ...

Подробнее
Номер записи: 43
04-02-2016 дата публикации

POLYMERS FUNCTIONALIZED WITH NITROSO COMPOUNDS

Номер: US20160032030A1
Автор: Luo Steven
Принадлежит:

A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound. 1. A method for preparing a functionalized polymer , the method comprising the steps of:(i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and(ii) reacting the reactive polymer with a nitroso compound, where the reaction product from said step of reacting is subsequently reacted with a compound defined by the formula RX, where R is a mono-valent organic group, and X is a halogen atom, a sulfonate group, or a thiosulfonate group.2. The method of claim 1 , where the reaction product from said step of reacting is subsequently protonated.3. The method of claim 1 , where the coordination catalyst is a lanthanide-based catalyst.4. The method of claim 1 , where X is chlorine.5. The method of claim 1 , where X is bromine.6. The method of claim 1 , where X is a sulfonate group.7. The method of claim 6 , where the sulfonate group is selected from the group consisting of methanesulfonate claim 6 , benzenesulfonate claim 6 , p-toluenesulfonate claim 6 , and trifluoromethanesulfonate groups.8. The method of claim 1 , where X is a thiosulfonate group.9. The method of claim 8 , where the thiosulfonate group is selected from the group consisting of methanethiosulfonate claim 8 , benzenethiosulfonate claim 8 , p-toluenethiosulfonate claim 8 , and trifluoromethanethiosulfonate groups.10. The method of claim 1 , where the compound defined by the formula RX is selected from the group consisting of methyl chloride claim 1 , methyl bromide claim 1 , methyl iodide claim 1 , trimethylsilyl chloride claim 1 , trimethylsilyl bromide claim 1 , trimethylsilyl iodide claim 1 , methyl methanesulfonate claim 1 , methyl benzenesulfonate claim 1 , methyl p-toluenesulfonate claim 1 , methyl trifluoromethanesulfonate claim 1 , methyl me thane ...

Подробнее
Номер записи: 44
01-02-2018 дата публикации

CATALYST COMPOSITION FOR PREPARING CONJUGATED DIENE-BASED POLYMER AND CONJUGATED DIENE-BASED POLYMER PREPARED USING THE SAME

Номер: US20180030173A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, CHO Woo Jin, Kang Suk Youn, Oh Kyoung Hwan, Park Sung Hyun
Принадлежит: LG CHEM, LTD.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 1. A catalyst composition for preparing a conjugated diene-based polymer , the catalyst composition comprising:a functionalizing agent of the following Formula 1;a rare earth metal compound;an alkylating agent; and {'br': None, 'sub': 1', 'a', '1', '2', '2', 'n-1', 'm-a, '(X)-M-([Y-M-(X)]).\u2003\u2003[Formula 1]'}, 'a halogen compoundin Formula 1,{'sub': 1', '2, 'm is an atomic valence of M, n is an atomic valence of M,'}a satisfies a relation of 0≦a≦m−1,{'sub': 1', '2, 'Mand Mare each independently selected from the group consisting of elements in group 14 and elements in group 15,'}{'sub': 1', '2', '1-20', 'a', 'b', 'c', 'd', 'e', 'f', 'a', 'b', 'c', 'd', 'e', 'f', '1-20', '3-20', '6-20', '7-20', '7-20', '1-20', '3-20', '6-20', '7-20', '7-20, 'Xand Xare each independently selected from the group consisting of a hydrogen atom, monovalent Chydrocarbon, —OR, —NRR, —SiRRRand a covalent bonding functional group, where R, R, R, R, Rand Rare each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl, —NR′R″ and a covalent bonding functional group, where R′ and R″ are each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl, and a covalent bonding functional group,'}{'sub': 1', '2, 'Y is a divalent hydrocarbon group substituted or unsubstituted with at least one covalent bonding functional group, where at least one of X, Xand Y includes a covalent bonding functional group, and'}the ...

Подробнее
Номер записи: 45
01-02-2018 дата публикации

CATALYST COMPOSITION FOR PREPARING CONJUGATED DIENE-BASED POLYMER AND CONJUGATED DIENE-BASED POLYMER PREPARED USING THE SAME

Номер: US20180030174A1
Автор: Ahn Jeong Heon, CHO Woo Jin, CHOI Soo Young, Kang Suk Youn, Ryu Jin Sook, Yoo Suk Joon
Принадлежит: LG CHEM, LTD.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 1. A catalyst composition for preparing a conjugated diene-based polymer , the composition comprising:a functionalizing agent of the following Formula 1;a rare earth metal compound;an alkylating agent; and {'br': None, 'sub': 1', 'a', '2', '4-a, '(X)—Sn—(X)\u2003\u2003[Formula 1]'}, 'a halogen compoundin Formula 1,a is an integer of 1 to 3,{'sub': 1', '2', '1-20', 'a', 'b', 'c', 'd', 'e', 'f', '1', '2', 'a', 'b', 'c', 'd', 'e', 'f', '1-20', '3-20', '6-20', '7-20', '7-20', '1-20', '3-20', '6-20', '7-20', '7-20, 'Xand Xare each independently selected from the group consisting of a hydrogen atom, monovalent Chydrocarbon, —OR, —NRR, —SiRRR, and a covalent bonding functional group, where at least one of Xand Xincludes the covalent bonding functional group, where R, R, R, R, Rand Rare each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Caralkyl, —SiR′R″R′″, and a covalent bonding functional group, where R′, R″ and R′″ are each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Caralkyl, and a covalent bonding functional group, and'}the covalent bonding functional group is a functional group containing a carbon-carbon double bond.2. The catalyst composition for preparing a conjugated diene-based polymer of claim 1 , wherein the covalent bonding functional group is selected from the group consisting of Calkenyl and (meth)acryl.3. The catalyst composition for preparing a conjugated diene-based polymer of ...

Подробнее
Номер записи: 46
01-02-2018 дата публикации

MUTANT POLYPEPTIDES AND USES THEREOF

Номер: US20180030431A1
Автор: Althoff Eric, AZOITEI Mihai Luchian, Ban Yih-En A., Botes Adriana L., Grabs-Röthlisberger Daniela, Kadi Nadia, Pisarchik Alexander, Zanghellini Alexandre
Принадлежит: INVISTA North America S.a.r.l.

The present disclosure provides novel polypeptides with 3-buten-2-ol dehydratase activity, polypeptides with catalytic activity in the conversion of 3-methyl-3-buten-2-ol to isoprene, and crystal structure data for one of such polypeptides. Methods of making and using the polypeptides and their related crystal structure data are also provided. 120.-. (canceled)21. A polypeptide comprising an amino acid sequence with at least 90% amino acid sequence homology to SEQ ID NO: 1 , wherein said amino acid sequence comprises one to five mutations at the following X positions of SEQ ID NO: 1: RXRXRXRXRXRXRXXXRXRXRXRXRXR , wherein:X96 is mutated to a different amino acid selected from L and equivalent amino acids;X99 is mutated to a different amino acid selected from L and equivalent amino acids;X123 is mutated to a different amino acid selected from I and equivalent amino acids;X187 is mutated to a different amino acid selected from M and equivalent amino acids;X204 is mutated to a different amino acid selected from I and equivalent amino acids;X212 is mutated to a different amino acid selected from F, Y, and equivalent amino acids;X273 is mutated to a different amino acid selected from C and equivalent amino acids;X274 is mutated to a different amino acid selected from F and equivalent amino acids;X275 is mutated to a different amino acid selected from I and equivalent amino acids;X324 is mutated to a different amino acid selected from L, E, and equivalent amino acids;X328 is mutated to a different amino acid selected from V and equivalent amino acids;X360 is mutated to a different amino acid selected from Y and equivalent amino acids;X366 is mutated to a different amino acid selected from V, C, G, and equivalent amino acids;X382 is mutated to a different amino acid selected from W and equivalent amino acids; and each R is the same as the corresponding amino acid in SEQ ID NO: 1, with or without an N-terminal signal peptide, and with or without an N-terminal methionine.22. ...

Подробнее
Номер записи: 47
11-02-2016 дата публикации

Polymers Functionalized With Heterocyclic Imines

Номер: US20160039958A1
Автор: Abell Joshua P., Dickstein Joshua S., Luo Steven
Принадлежит: BRIDGESTONE CORPORATION

A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group. 1. A method for preparing a functionalized polymer , the method comprising the steps of:(i) polymerizing monomer to form a reactive polymer, and(ii) reacting the reactive polymer with an imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group.2. The method of claim 1 , where the hydrocarbyloxy-substituted or silyloxy-substituted aryl group contains a hydrocarbyloxy or silyloxy substituent at the 2 position.6. The method of claim 1 , where the imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group contains an oxygen-containing heterocyclic group.7. The method of claim 1 , where the imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group contains a sulfur-containing heterocyclic group.8. The method of claim 1 , where the imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group contains a nitrogen-containing saturated heterocyclic group.9. The method of claim 1 , where the imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group contains a nitrogen-containing unsaturated heterocyclic group that does not contain a carbon-nitrogen double bond.10. The method of claim 1 , where the imine compound containing a heterocyclic group and a hydrocarbyloxy-substituted or silyloxy-substituted aryl group contains a nitrogen-containing unsaturated heterocyclic group that contains one carbon-nitrogen double bond.11. The method of claim 1 , where the imine compound containing a heterocyclic group and a ...

Подробнее
Номер записи: 48
08-02-2018 дата публикации

CATALYST COMPOSITION FOR PREPARING CONJUGATED DIENE-BASED POLYMER AND CONJUGATED DIENE-BASED POLYMER PREPARING USING THE SAME

Номер: US20180037675A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, Kang Suk Youn, Kim Ji Eun, Oh Kyoung Hwan, Park Sung Ho
Принадлежит: LG CHEM, LTD.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 1. A catalyst composition for preparing a conjugated diene-based polymer , the composition comprising:a functionalizing agent of the following Formula 1;a rare earth metal compound;an alkylating agent; and {'br': None, 'sub': 1', 'a', '2', '3-a, '(X)—N—(X)\u2003\u2003[Formula 1]'}, 'a halogen compoundin Formula 1,a is an integer of 1 or 2,{'sub': 1', '2', '1-20', 'a', 'b', 'c', 'd', '1', '2', '1', '2', 'a', 'b', 'c', 'd', '1-20', '3-20', '6-20', '7-20', '7-20', '1-20', '3-20', '6-20', '7-20', '7-20, 'Xand Xare each independently selected from the group consisting of a hydrogen atom, monovalent Chydrocarbon, —OR, —SiRRRand a covalent bonding functional group, or adjacent two functional groups in Xand Xare connected to form a heterocyclic compound, where at least one of Xand Xincludes the covalent bonding functional group, where R, R, R, and Rare each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl, and —NR′R″, where R′ and R″ are each independently selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl, and a covalent bonding functional group, and'}the covalent bonding functional group is a functional group containing a carbon-carbon double bond.2. The catalyst composition for preparing a conjugated diene-based polymer of claim 1 , wherein the covalent bonding functional group is selected from the group consisting of Calkenyl and (meth)acryl.3. The catalyst composition for preparing a ...

Подробнее
Номер записи: 49
08-02-2018 дата публикации

APPARATUS FOR PREPARING POLYBUTADIENE

Номер: US20180037683A1
Автор: Hwang Woo Sung, JEONG Hoi In, KO Jun Seok, Lee Jong Ku
Принадлежит: LG CHEM, LTD.

Provided is an apparatus for preparing polybutadiene which may improve productivity by minimizing a plugging phenomenon occurred during the preparation of polybutadiene and increasing a conversion rate. The apparatus for preparing polybutadiene includes two first polymerization reactors arranged in parallel to reduce the plugging phenomenon in which butadiene (reaction raw material), a polymerization catalyst, and a solvent are respectively supplied and polymerized, at least one second polymerization reactor arranged in series with the first polymerization reactors in which a first polymerization solution containing a butadiene polymer discharged from the first polymerization reactors is supplied and a butadiene polymerization reaction is performed, and one or more condensers which condense gases discharged from the first polymerization reactors and the second polymerization reactor and supply a condensate to the first polymerization reactors and/or the second polymerization reactor. 1. An apparatus for preparing polybutadiene , the apparatus comprising:two first polymerization reactors arranged in parallel to reduce a plugging phenomenon in which butadiene (reaction raw material), a polymerization catalyst, and a solvent are respectively supplied and polymerized;at least one second polymerization reactor arranged in series with the first polymerization reactors in which a first polymerization solution containing a butadiene polymer discharged from the first polymerization reactors is supplied and a butadiene polymerization reaction is performed; andone or more condensers which condense gases discharged from the first polymerization reactors and the second polymerization reactor and supply a condensate to the first polymerization reactors and/or the second polymerization reactor.2. The apparatus for preparing polybutadiene of claim 1 , wherein a conversion rate into the butadiene polymer is increased when a residence time of a feedstock in the parallel-arranged ...

Подробнее
Номер записи: 50
08-02-2018 дата публикации

NOVEL NEODYMIUM COMPOUND AND CATALYST FOR DIENE POLYMERIZATION INCLUDING THE SAME

Номер: US20180037684A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, CHO Woo Jin, Oh Kyoung Hwan, YUN Sae Young
Принадлежит:

The present invention relates to a neodymium compound represented by Formula 1 and a catalyst for diene polymerization including the same. 111-. (canceled)12. A catalyst for diene polymerization , comprising:{'sub': 3', '3', '3', '3', '3, 'a neodymium compound selected from the group consisting of: Nd(2,2-diethyl decanoate), Nd(2,2-dipropyl decanoate), Nd(2,2-dibutyl decanoate), Nd(2,2-dihexyl decanoate), and Nd(2,2-dioctyl decanoate).'}13. The catalyst for diene polymerization of claim 12 , further comprising:a halogen compound; andan organometal compound.14. The catalyst for diene polymerization of claim 13 , wherein the halogen compound is selected from the group consisting of an aluminum halogen compound claim 13 , an inorganic halogen compound obtained by substituting aluminum in the aluminum halogen compound with the element selected from the group consisting of boron claim 13 , silicon claim 13 , tin and titanium claim 13 , and an organic halogen compound.15. The catalyst for diene polymerization of claim 14 , wherein the organic halogen compound is a t-alkyl halogen compound.16. The catalyst for diene polymerization of claim 13 , wherein the organometal compound is at least one selected from the group consisting of an alkyl aluminum compound claim 13 , an alkyl magnesium compound and an alkyl lithium compound.17. The catalyst for diene polymerization of claim 16 , wherein the organometal compound is at least one selected from the group consisting of trimethyl aluminum claim 16 , triethyl aluminum claim 16 , tripropyl aluminum claim 16 , tributyl aluminum claim 16 , triisobutyl aluminum claim 16 , trihexyl aluminum claim 16 , diisobutyl aluminum hydride claim 16 , dibutyl magnesium claim 16 , diethyl magnesium and n-butyl lithium.18. The catalyst for diene polymerization of claim 13 , wherein a mixing ratio (molar ratio) of neodymium compound:halogen compound:organometal compound is 1.0:1.0 to 20:5.0 to 200. This is a Divisional of application Ser. No. 14/462 ...

Подробнее
Номер записи: 51
24-02-2022 дата публикации

Modified Conjugated Diene-based Polymer And Method Of Preparing The Same

Номер: US20220056172A1
Автор: Choi Won Mun, Joe Dae June, Kim Ji Eun, Lim Won Taeck
Принадлежит: LG CHEM, LTD.

The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer. 2. The modifier of claim 1 , whereinin Formula 1,{'sub': 1', '4', '5, 'R, R, and Rare each independently an alkyl group having 1 to 6 carbon atoms which is substituted or unsubstituted with an alkyl group having 1 to 5 carbon atoms,'}{'sub': '2', 'Ris an alkylene group having 1 to 6 carbon atoms, and'}{'sub': '3', 'Ris a connecting group represented by Formula 2 or Formula 3,'}{'sub': 6', '7', '10, 'wherein, in Formula 2 or Formula 3, Ris an alkyl group having 1 to 6 carbon atoms or a substituent represented by Formula 2-1, and Rto Rare an alkylene group having 1 to 6 carbon atoms,'}{'sub': 12', '13, 'wherein, in Formula 2-1, Ru is an alkylene group having 1 to 6 carbon atoms, and Rand Rare each independently an alkyl group having 1 to 6 carbon atoms which is substituted or unsubstituted with an alkyl group having 1 to 5 carbon atoms.'}4. The modifier of claim 1 , wherein the modifier is a modifier for a conjugated diene-based polymer.6. The method of claim 5 , wherein the compound represented by Formula 4 and the alkyl ketone compound are reacted at a molar ratio of 1:1 to 1:2.7. The method of claim 5 , wherein the compound represented by Formula 5 and the compound represented by Formula 6 are reacted at a molar ratio of 1:1 to 1:2.8. The method of claim 5 , wherein the first reaction is performed in a temperature range of 110° C. to 160° C.9. The method of claim 5 , wherein the second reaction is performed in a temperature range of 20° C. to 60° C. The present application is a divisional application of U.S. application Ser. No. 16/083,700 filed Sep. 10, 2018, a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/KR2017/012197 filed Oct. 31, 2017, which claims priority from ...

Подробнее
Номер записи: 52
15-02-2018 дата публикации

CATALYST COMPOSITION FOR PREPARING CONJUGATED DIENE-BASED POLYMER AND CONJUGATED DIENE-BASED POLYMER PREPARED USING THE SAME

Номер: US20180044452A1
Автор: Ahn Jeong Heon, Jeon Hee Jung, Kang Suk Youn, Kim Dong Hui, Lee Yu Ra, Yoo Suk Joon
Принадлежит: LG CHEM, LTD.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 1. A catalyst composition for preparing a conjugated diene-based polymer , the catalyst composition comprising:a functionalizing agent of the following Formula 1;a rare earth metal compound;an alkylating agent; anda halogen compound, {'br': None, 'sub': 1', 'a', '2', '4-a, '(X)—Si—(X),\u2003\u2003[Formula 1]'}, 'wherein the functionalizing agent is contained in 1 equivalent to 20 equivalents based on 1 equivalent of the rare earth metal compoundin Formula 1,a is an integer of 1 to 3,{'sub': 1', '2', '1-20', '1', '2', '1-20', '3-20', '6-20', '7-20', '7-20, 'Xand Xare each independently selected from the group consisting of a hydrogen atom, monovalent Chydrocarbon, —OR, and a covalent bonding functional group, where at least one of Xand Xincludes the covalent bonding functional group, where R is selected from the group consisting of a hydrogen atom, Calkyl, Ccycloalkyl, Caryl, Calkylaryl, Carylalkyl and a covalent bonding functional group, and'}the covalent bonding functional group is a functional group containing a carbon-carbon double bond.2. The catalyst composition for preparing a conjugated diene-based polymer of claim 1 , wherein the covalent bonding functional group is selected from the group consisting of Calkenyl and (meth)acryl.3. The catalyst composition for preparing a conjugated diene-based polymer of claim 1 , wherein the covalent bonding functional group is selected from the group consisting of vinyl claim 1 , allyl claim 1 , methallyl claim 1 , butenyl claim 1 , pentenyl claim 1 , hexenyl and (meth) ...

Подробнее
Номер записи: 53
03-03-2022 дата публикации

Polyurethane golf ball

Номер: US20220062713A1
Автор: Chul Ho Song, Geon SIM, Kyung Ahn Moon, Seung Geun PARK
Принадлежит: Volvik Inc

A golf ball according to an embodiment of the present disclosure is covered with an injection-molded crosslinked polyurethane. The golf ball may have excellent scuff resistance and light resistance of a cover as well as excellent driving distance and spin by using a cover composition containing crosslinked polyurethane obtained by adding a crosslinking agent to thermoplastic polyurethane (TPU). A polyurethane cover composition according to an embodiment can make it possible to prepare a crosslinked polyurethane cover by injection molding without the burden of facility investment cost.

Подробнее
Номер записи: 54
25-02-2016 дата публикации

METHOD OF PRODUCTION OF RADIAL CONJUGATED DIENE RUBBER

Номер: US20160053033A1
Автор: Sugimura Takeshi
Принадлежит: ZEON CORPORATION

A method of production of radial conjugated diene rubber including a first step of causing 65 to 500 moles of isoprene to polymerize, in the presence of an alkali metal-reacted aromatic compound which is represented by the following general formula (1), with respect to 1 mole of an alkali metal in the alkali metal-reacted aromatic compound so as to obtain a radial isoprene polymer which has active ends and a second step of causing monomers which contain 1,3-butadiene or 1,3-butadiene and an aromatic vinyl compound to polymerize to the active ends of the radial isoprene polymer is provided. 17-. (canceled)9. A radial conjugated diene rubber obtained by the method of production according to .10. A modified radial conjugated diene rubber obtained by causing a modifier to react with the active ends of the radial conjugated diene rubber according to .11. A rubber composition comprising 100 parts by weight of a rubber ingredient which contains the radial conjugated diene rubber according to and to 200 parts by weight of silica.12. A rubber composition comprising 100 parts by weight of a rubber ingredient which contains the modified radial conjugated diene rubber according to and to 200 parts by weight of silica.13. The rubber composition according to which further contains a cross-linking agent.14. The rubber composition according to which further contains a cross-linking agent.15. The cross-linked rubber obtained by cross-linking the rubber composition according to .16. The cross-linked rubber obtained by cross-linking the rubber composition according to .17. A tire which contains the cross-linked rubber according to .18. A tire which contains the cross-linked rubber according to . The present invention relates to a method of production of radial conjugated diene rubber, more particularly relates to a method for producing radial conjugated diene rubber which is excellent in manufacturing stability and processability and which can give cross-linked rubber which is ...

Подробнее
Номер записи: 55
25-02-2021 дата публикации

MODIFIED POLYISOBUTYLENE POLYMER FOR RUBBER COMPOUNDING AND RUBBER COMPOSITION COMPRISING SAME

Номер: US20210054116A1
Автор: Kim Myeong Seok, LEE Se Hyun, NA Kyong Ju, PARK Min Sup
Принадлежит: DAELIM INDUSTRIAL CO., LTD.

The present invention relates to a modified polyisobutylene polymer for rubber compounding including polyisobutylene having isobutylene as a main chain, unsaturated dicarboxylic anhydride, and a silane compound, and more particularly, 20 to 80 wt % of polyisobutylene having isobutylene as a main chain, 1 to 20 wt % of unsaturated dicarboxylic anhydride, and 1 to 60 wt % of a silane compound. In particular, when the polyisobutylene polymer of the present invention is used as an additive for rubber, the dispersibility of a filler can be significantly increased and both grip performance and rolling resistance can be improved. 1. A modified polyisobutylene polymer for rubber compounding , prepared by mixing:polyisobutylene having isobutylene as a main chain;unsaturated dicarboxylic anhydride; anda silane compound;2. The modified polyisobutylene polymer of claim 1 , wherein the modified polyisobutylene polymer is prepared by mixing 20 to 80 wt % of the polyisobutylene having isobutylene as the main chain claim 1 , 1 to 20 wt % of the unsaturated dicarboxylic anhydride claim 1 , and 1 to 60 wt % of the silane compound.3. The modified polyisobutylene polymer of claim 1 , wherein the polyisobutylene having isobutylene as the main chain has a number average molecular weight of 350 g/mol to 6 claim 1 ,000 g/mol.4. The modified polyisobutylene polymer of claim 1 , wherein the polyisobutylene having isobutylene as the main chain has a polydispersity of 1 to 5.5. The modified polyisobutylene polymer of claim 1 , wherein the unsaturated dicarboxylic anhydride is at least one selected from among maleic anhydride claim 1 , itaconic anhydride claim 1 , citraconic anhydride claim 1 , propenyl succinic anhydride and 2-pentendioic anhydride.6. The modified polyisobutylene polymer of claim 1 , wherein the silane compound contains an amino group.8. The modified polyisobutylene polymer of claim 6 , wherein the silane compound is at least one selected from among 3-aminopropyl ...

Подробнее
Номер записи: 56
22-02-2018 дата публикации

METHOD OF PREPARING POLYBUTADIENE

Номер: US20180051108A1
Автор: Hwang Woo Sung, JEONG Hoi In, KO Jun Seok, Lee Jong Ku
Принадлежит: LG CHEM, LTD.

Provided is a method of preparing polybutadiene which may improve productivity by minimizing a plugging phenomenon occurred during the preparation of polybutadiene and increasing a conversion rate. 1. A method of preparing polybutadiene , the method comprising:performing a first polymerization step in which a raw material including butadiene, a polymerization catalyst, and a solvent is supplied to each of two first polymerization reactors arranged in parallel to reduce a plugging phenomenon and polymerized to prepare a first polymerization solution containing a butadiene polymer, and gas generated by polymerization heat in the first polymerization reactors is discharged to a condenser;performing a second polymerization step in which the first polymerization solution is supplied to at least one second polymerization reactor arranged in series with the first polymerization reactors and polymerized to prepare a second polymerization solution containing a butadiene polymer, and gas generated by polymerization heat in the second polymerization reactor is discharged to the condenser; anddischarging the second polymerization solution.2. The method of claim 1 , wherein a conversion rate into the butadiene polymer is increased when a residence time of the raw material in the parallel-arranged first polymerization reactors is increased.3. The method of claim 2 , wherein the residence time is in a range of 35 minutes to 65 minutes.4. The method of claim 2 , wherein the conversion rate into the butadiene polymer is 85% or more.5. The method of claim 1 , wherein claim 1 , when the gases discharged from the first polymerization reactors and the second polymerization reactor are condensed in the same condenser claim 1 , the condensate condensed therefrom is supplied to the first polymerization reactors.6. The method of claim 1 , wherein claim 1 , when the gases discharged from the first polymerization reactors and the second polymerization reactor are condensed in different ...

Подробнее
Номер записи: 57
23-02-2017 дата публикации

METHODS, CELLS AND REAGENTS FOR PRODUCTION OF ISOPRENE, DERIVATIVES AND INTERMEDIATES THEREOF

Номер: US20170051314A1
Автор: Conradie Alex Van Eck
Принадлежит:

This application describes methods, including non-naturally occurring methods, for biosynthesizing 3-hydroxy-3-methylglutaryl-coA and intermediates thereof, as well as non-naturally occurring hosts for producing 3-hydroxy-3-methylglutaryl-coA. This application also describes methods, including non-naturally occurring methods, for biosynthesizing isoprene and intermediates thereof, as well as non-naturally occurring hosts for producing isoprene. 14-. (canceled)68-. (canceled)9. The method of claim 5 , further comprising synthesizing isoprene via a mevalonate pathway comprising one or more steps selected from the group consisting of:enzymatically converting 3-hydroxy-3methylglutaryl-CoA to (R)-mevalonate;enzymatically converting (R)-mevafonate to (R)-5-phosphomevalonate; enzymatically converting (R)-5-phosphomevalonate to (R)-5-diphosphomevalonate;enzymatically converting (R)-5-diphosphomevalonate to isopentenyl diphosphate;enzymatically converting isopentenyl diphosphate to dimethylallyl diphosphate; andenzymatically converting dimethylallyl diphosphate to isoprene.1012-. (canceled)13. A non-naturally occurring host capable of producing 3-hydroxy-3-methylglutaryl-CoA claim 5 , said host comprising:(a) at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 1.2.7.7 or EC 1.2.1.-enzyme; or at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 1.2.1.39 or EC 1.2.1.5 enzyme;', 'at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 8,2.1.2. enzyme; or, '(b) at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 4.1.1,74 or EC 4.1.1.43 enzyme;'}(c) both (a) and (b); andat least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 1.3.8.4 enzyme;at least one exogenous nucleic acid encoding a polypeptide having the activity of an EC 8.4.1.4 enzyme; andat least one exogenous nucleic acid encoding a polypeptide having ...

Подробнее
Номер записи: 58
10-03-2022 дата публикации

ISOPRENE-BASED POLYMER LATEX COMPOSITION

Номер: US20220073657A1
Автор: KAMIJO Masanao, MURATA Tomoaki, Ogawa Masahiro, OGAWA Noriko
Принадлежит: SHOWA DENKO K.K.

An isoprene-based polymer latex composition includes a chloroprene polymer latex (A) and an isoprene polymer latex (B), in which the chloroprene polymer has a z-average particle size of 180 nm or greater and smaller than 300 nm, and a tetrahydrofuran-insoluble fraction of 80 to 99% by mass; the chloroprene polymer latex (A) is (1) a copolymer latex of chloroprene (A-1) and 2,3-dichloro-1,3-butadiene (A-2-1), or (2) a copolymer latex of the above (A-1) and (A-2-1), and another monomer (A-2-2); and the copolymer is obtained by copolymerization in which the ratio of 2,3-dichloro-1,3-butadiene (A-2-1) is 5.0 to 30.0% by mass relative to the total amount of the monomer components chloroprene (A-1) and 2,3-dichloro-1,3-butadiene (A-2-1) of 100% by mass. The isoprene-based polymer latex composition's quality is maintained, and the properties after cross-linking of a molded product obtained by dipping a dipping former into the composition multiple times do not deteriorate. 1. An isoprene-based polymer latex composition comprising a chloroprene polymer latex (A) , an isoprene polymer latex (B) , and an emulsifier (C) , wherein the chloroprene polymer latex has a z-average particle size of chloroprene polymer particles contained therein of 180 nm or greater and smaller than 300 nm and a tetrahydrofuran insoluble fraction of 80 to 99% by mass , the chloroprene polymer latex (A) is (1) a copolymer latex of chloroprene (A-1) and 2 ,3-dichloro-1 ,3-butadiene (A-2-1) , or (2) a copolymer latex of chloroprene (A-1) , 2 ,3-dichloro-1 ,3-butadiene (A-2-1) , and another monomer (A-2-2) , and the copolymer is obtained by copolymerization in which the ratio of 2 ,3-dichloro-1 ,3-butadiene (A-2-1) is 5.0 to 30.0% by mass relative to the total amount of the monomer components chloroprene (A-1) and 2 ,3-dichloro-1 ,3-butadiene (A-2-1) of 100% by mass.2. The isoprene-based polymer latex composition according to claim 1 , comprising at least one of a metal oxide (D) claim 1 , a cross-linking ...

Подробнее
Номер записи: 59
10-03-2022 дата публикации

CURABLE RESIN COMPOSITION AND CURED PRODUCT THEREOF, AND METHOD FOR PRODUCING THREE-DIMENSIONAL SHAPED PRODUCT

Номер: US20220073725A1
Автор: Hiratani Takayuki, Ogawa Ryo, Wada Kyohei
Принадлежит:

To provide a low-viscosity curable resin composition capable of obtaining a cured product excellent in impact resistance. The curable resin composition contains core-shell type rubber particles, a radically polymerizable compound having one or more radically polymerizable functional groups in the molecule, and a radical polymerization initiator, and the core-shell type rubber particles have a core layer and a shell layer containing a polymer having an alicyclic hydrocarbon group in a side chain, and the radically polymerizable compound contains a radically polymerizable compound having a molecular weight of 500 or more in a ratio of 2 mass % to 70 mass %. 1. A curable resin composition comprisinga core-shell type rubber particle;a radically polymerizable compound having one or more radically polymerizable functional groups in the molecule;a radical polymerization initiator,wherein the core-shell type rubber particle has a core layer and a shell layer containing a polymer having an alicyclic hydrocarbon group in a side chain, andwherein the curable resin composition contains a radically polymerizable compound having a molecular weight of 500 or more in a ratio of 2 mass % or more and 70 mass % or less.2. The curable resin composition according to claim 1 , wherein the radically polymerizable compound contains less than 50 mass % of a (meth) acrylate compound having an alicyclic hydrocarbon group.3. The curable resin composition according to claim 1 , wherein the radically polymerizable compound having a molecular weight of 500 or more is a polyfunctional urethane (meth)acrylate having at least 2 (meth)acryloyl groups and at least 2 urethane groups.4. The curable resin composition according to claim 1 , wherein a content of the core-shell type rubber particle is 7 parts by mass or more and 65 parts by mass or less based on 100 parts by mass of the radically polymerizable compound.5. The curable resin composition according to claim 1 , wherein the core-shell type ...

Подробнее
Номер записи: 60
17-03-2022 дата публикации

Modified Conjugated Diene-Based Polymer, Method for Preparing the Same and Rubber Composition Including the Same

Номер: US20220081496A1
Автор: Ju Ryang Bae, Seo Won Choi, Suk Youn Kang, Tae Chul Lee
Принадлежит: LG Chem Ltd

A neodymium-catalyzed modified conjugated diene-based polymer having excellent affinity with a filler is provided. A method for preparing the same and a rubber composition including the same are also provided. The neodymium-catalyzed modified conjugated diene-based polymer includes a repeating unit derived from a conjugated diene-based monomer; and a functional group derived from a modifier represented by Formula 1 in at least one terminal of a polymer.

Подробнее
Номер записи: 61
17-03-2022 дата публикации

ASSOCIATIVE POLYMERS FOR USE IN A FLOW AND RELATED COMPOSITIONS, METHODS AND SYSTEMS

Номер: US20220081632A1
Автор: KORNFIELD Julia A., WEI Ming-Hsin
Принадлежит:

Described herein are associative polymers capable of controlling a physical and/or chemical property of non-polar compositions that can be used when the non-polar composition is in a flow, and related compositions, methods and systems. Associative polymers herein described have a non-polar backbone with a longest span having a molecular weight that remains substantially unchanged under the flow conditions and functional groups presented at ends of the non-polar backbone, with a number of the functional groups presented at the ends of the non-polar backbone formed by associative functional groups capable of undergoing an associative interaction with another associative functional group with an association constant (k) such that the strength of each associative interaction is less than the strength of a covalent bond between atoms and in particular less than the strength of a covalent bond between backbone atoms. 2. (canceled)3. (canceled)4. The framing associative polymer of claim 1 , wherein the association constant is 6≤logk≤14.5. (canceled)6. (canceled)7. The framing associative polymer of claim 1 , wherein the another associative functional group is presented at least one end of a different associative polymer.8. The framing associative polymer of claim 1 , wherein the framing associative polymers are formed by at least two structure units having formula [[FG-chain-[node] (I) and optionally one or more structural units having formula -node-chain]- (II) claim 1 , FG is an associative functional group (FGa);', {'br': None, 'sub': 1', 'n', '2, 'R-[A]R\u2003\u2003(III)'}, 'chain is a non-polar polymer substantially soluble in a non-polar composition, the polymer having formula, A is a chemical and in particular an organic moiety forming the monomer of the polymer;', {'sub': 1', '2', '1', '2', '1', '2, 'Rand Rare independently selected from any carbon based or organic group with one of Rand Rlinked to an FG or a node and the other one of Rand Rlinked to an FG or a ...

Подробнее
Номер записи: 62
08-03-2018 дата публикации

SILANE-MODIFIED POLYMER, RUBBER COMPOUNDING INGREDIENT, AND RUBBER COMPOSITION

Номер: US20180066085A1
Автор: HIROKAMI Munenao
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

A silane-modified polymer having a polyisoprene skeleton and a hydrolyzable silyl group is useful as a rubber compounding ingredient. When added to a rubber composition, it is effective for improving the wet grip and substantially reducing the hysteresis loss of the cured rubber composition. Low fuel consumption tires may be manufactured from the rubber composition. 3. A rubber compounding ingredient comprising the silane-modified polymer of .4. The rubber compounding ingredient of claim 3 , further comprising a sulfide-containing organosilicon compound.5. The rubber compounding ingredient of claim 3 , further comprising at least one powder claim 3 , wherein a total content (A) of the silane-modified polymer and the sulfide-containing organosilicon compound and a content (B) of the powder are in a weight ratio (A/B) of from 70/30 to 5/95.6. A rubber composition comprising the rubber compounding ingredient of .7. A tire obtained by molding the rubber composition of . This non-provisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No. 2016-174718 filed in Japan on Sep. 7, 2016, the entire contents of which are hereby incorporated by reference.This invention relates to a silane-modified polymer as well as a rubber compounding ingredient and rubber composition comprising the same. More particularly, it relates to a silane-modified polymer of polybutadiene or polystyrene skeleton, a method for preparing the same, a rubber compounding ingredient and rubber composition comprising the same, and a tire obtained from the rubber composition.Sulfur-containing organosilicon compounds are useful as an essential component when tires are produced from silica-filled rubber compositions. Silica-filled tires show excellent performance in the automotive application, especially wear resistance, rolling resistance and wet grip. Since these performance improvements are closely related to a saving of fuel consumption of tires, active efforts are currently ...

Подробнее
Номер записи: 63
09-03-2017 дата публикации

METHOD FOR PREPARING NOVEL ANIONIC POLYMERIZATION INITIATOR AND CONJUGATE DIENE SYSTEM COPOLYMER USING SAME

Номер: US20170066854A1
Автор: Choi Won-Mun, Joe Dae-June, Kim Min-Soo
Принадлежит: LG CHEM, LTD.

Disclosed are an anionic polymerization initiator, which is a reaction product of an organometallic compound and a compound including an etheric oxygen atom-containing alkyl group represented by specific Chemical Formula, and a method of preparing a conjugated diene-based copolymer using the same. 2. The anionic polymerization initiator of claim 1 , wherein the compound represented by Chemical Formula 1 is 1-(methoxymethyl)-2-methylbenzene or 1-(t-butoxymethyl)-2-methylbenzene.3. The anionic polymerization initiator of claim 1 , wherein the organometallic compound is alkyl lithium.5. The method of claim 4 , wherein the reaction product of the organometallic compound and the compound including an etheric oxygen atom-containing alkyl group represented by Chemical Formula 1 is used in an amount of 0.01 to 10 mmol based on 100 g in total of the monomer.6. The method of claim 4 , wherein the polymerizing is performed with additional use of a polar additive.7. The method of claim 6 , wherein the polar additive is added in an amount of 0.001 to 10 g based on 1 mmol in total of the reaction product of the organometallic compound and the compound including an etheric oxygen atom-containing alkyl group represented by Chemical Formula 1.8. A conjugated diene-based polymer claims 4 , prepared by the method of .9. A conjugated diene-based polymer claim 5 , prepared by the method of .10. A conjugated diene-based polymer claim 6 , prepared by the method of .11. A conjugated diene-based polymer claim 7 , prepared by the method of . This application claims the benefit of Korean Patent Application No. KR 10-2014-0168701, filed Nov. 18, 2014, which is hereby incorporated by reference in its entirety into this application.The present invention relates to a novel anionic polymerization initiator system, and a method of preparing a conjugated diene-based copolymer using the same.Currently, when a copolymer of a conjugated diene monomer and an aromatic vinyl monomer is prepared through ...

Подробнее
Номер записи: 64
29-05-2014 дата публикации

REACTOR AND METHOD FOR CONTINUOUS POLYMERIZATION

Номер: US20140148561A1
Автор: Feller Rolf, Kirchhoff Jörg, Leiberich Ricarda, Lovegrove John, Paul Hanns-Ingolf, Ritter Joachim, Wagner Paul, Wiesner Udo
Принадлежит: LANXESS INTERNATIONAL S.A.

The present invention relates to a reactor () and a process for continuous polymerization, where the reactor () has an essentially tubular reactor housing (). The reactor housing () has a drive () which runs along the geometric central axis () in the flow direction () and is configured as a central shaft. A rotatably arranged scraper or wiper () is provided within the reactor housing (); the scraper or wiper () has at least one scraper or wiper blade () to run along an interior side () of the reactor housing (). The rotational movement of the scraper or wiper () results in radial mixing of a stream within the reactor housing () which dominates gravity effects and, by virtue of shaping of the scrapers or wipers, optionally makes plug flow or a loop flow or backflow within the reactor () or else via an additional external pumped circulation system () possible. This allows the reaction conditions in the axial direction of the reactor housing () to be predicted and individually suitable reaction conditions to be set and controlled along the reactor housing, so that, in particular, a desired molecular weight distribution can be set. 116. Reactor for the continuous preparation of polymers , in particular synthetic rubbers , comprising at least one essentially tubular reactor housing () having at least{'b': 38', '36', '16', '36', '42', '44, 'one drive () which is connected to at least one scraper or wiper () which is arranged so as to be rotatable within the reactor housing (), where the scraper or wiper () has at least one scraper or wiper blade () to run along an interior side of the reactor housing ()'}{'b': '20', 'at least one inlet ()'}{'b': '24', 'at least one outlet ().'}212. Reactor according to claim 1 , characterized in that it comprises a central shaft running essentially along the geometric central axis ().3242538. Reactor according to or claim 1 , wherein the outlet () is configured such that the outlet orifice () is aligned essentially tangentially to the ...

Подробнее
Номер записи: 65
15-03-2018 дата публикации

THERMOPLASTIC POLYMER, METHOD OF PREPARING THERMOPLASTIC POLYMER, AND THERMOPLASTIC POLYMER COMPOSITION INCLUDING THERMOPLASTIC POLYMER

Номер: US20180072834A1
Автор: CHUNG Sun Haeng, HAN Su Jeong, JEONG Young Hwan, KIM Yoo Vin, KIM Young Min, LEE Jin Hyoung, SUK Jae Min
Принадлежит:

The present invention relates to a thermoplastic polymer, a method of preparing the thermoplastic polymer, and a thermoplastic polymer composition including the thermoplastic polymer. More particularly, the present invention provides a thermoplastic polymer reducing the amount of gas generated in high-temperature extrusion and injection-molding processes to improve surface gloss and definition of a resin and provides superior latex stability when a chain-type fatty acid or a salt thereof having a specific branch group or functional group is included as an emulsifier during shell polymerization of a thermoplastic polymer including a core-shell structure, a method of preparing the thermoplastic polymer, and a thermoplastic polymer composition including the thermoplastic polymer. 1. A thermoplastic polymer , wherein , when a rubber polymer , or a core-shell polymer comprising the rubber polymer as a core is polymerized , one or more of the rubber polymer and the shell comprises one or selected from the group consisting of a branched chain fatty acid; a chain-type fatty acid comprising a functional group; and salts thereof.2. The thermoplastic polymer according to claim 1 , wherein the rubber polymer is a conjugated diene-based rubbery polymer.3. The thermoplastic polymer according to claim 1 , wherein the core-shell polymer comprises (a) a core comprising a conjugated diene-based rubbery polymer; and (b) a shell enclosing the core and prepared by polymerizing an aromatic vinyl compound with a vinyl cyanide compound.4. The thermoplastic polymer according to claim 2 , wherein the conjugated diene-based rubbery polymer is prepared by polymerizing one or more conjugated diene-based compounds selected from the group consisting of 1 claim 2 ,3-butadiene claim 2 , 2 claim 2 ,3-dimethyl-1 claim 2 ,3-butadiene claim 2 , 2-ethyl-1 claim 2 ,3-butadiene claim 2 , 1 claim 2 ,3-pentadiene claim 2 , isoprene claim 2 , and chloroprene.5. The thermoplastic polymer according to claim 1 ...

Подробнее
Номер записи: 66
16-03-2017 дата публикации

PROCESS FOR PRODUCING POLYDIENES

Номер: US20170073443A1
Автор: Qin Zengquan
Принадлежит: BRIDGESTONE CORPORATION

A method for producing a polydiene, the method comprising the steps of (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source; and (ii) polymerizing conjugated diene monomer in the presence of the active catalyst and a catechol compound. 1. A method for producing a polydiene , the method comprising the steps of:(i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source; and(ii) polymerizing conjugated diene monomer in the presence of the active catalyst and a catechol compound.3. The method of claim 1 , where the catechol compound is a hydrocarbylcatechol or silylcatechol.4. The method of claim 3 , where the catechol compound is a hydrocarbylcatechol selected from 3-methylcatechol claim 3 , 3-ethylcatechol claim 3 , 3-n-propylcatechol claim 3 , 3-isopropylcatechol claim 3 , 3-n-butylcatechol claim 3 , 3-isobutylcatechol claim 3 , 3-t-butylcatechol claim 3 , 3-n-pentylcatechol claim 3 , 3-isopentylcatechol claim 3 , 3-neopentylcatechol claim 3 , 4-methylcatechol claim 3 , 4-ethylcatechol claim 3 , 4-n-propylcatechol claim 3 , 4-isopropylcatechol claim 3 , 4-n-butylcatechol claim 3 , 4-isobutylcatechol claim 3 , 4-t-butylcatechol claim 3 , 4-n-pentylcatechol claim 3 , 4-isopentylcatechol claim 3 , 4-neopentylcatechol claim 3 , 3 claim 3 ,4-dimethylcatechol claim 3 , 3 claim 3 ,5-dimethylcatechol claim 3 , 3 claim 3 ,4-diethylcatechol claim 3 , 3 claim 3 ,5-diethylcatechol claim 3 , 3 claim 3 ,4-di-n-propylcatechol claim 3 , 3 claim 3 ,5-di-n-propylcatechol claim 3 , 3 claim 3 ,4-diisopropylcatechol claim 3 , 3 claim 3 ,5-diisopropylcatechol claim 3 , 3 claim 3 ,4-di-n-butylcatechol claim 3 , 3 claim 3 ,5-di-n-butylcatechol claim 3 , 3-benzylcatechol claim 3 , 4-benzylcatechol claim 3 , 3 claim 3 ,4-dibenzylcatechol claim 3 , 3 claim 3 ,5-dibenzylcatechol claim 3 , and 4 claim 3 ,5-dibenzylcatechol.5. The method of claim 3 , where the catechol ...

Подробнее
Номер записи: 67
19-03-2015 дата публикации

PROCESS FOR THE PREPARATION OF BRANCHED POLYBUTADIENE HAVING A HIGH CONTENT OF 1,4-CIS UNITS

Номер: US20150080526A1
Автор: Perretta Costantino, Vallieri Andrea, ZINNA Marianna
Принадлежит:

A process for the preparation of branched polybutadiene having a high content of 1,4-cis units which comprises polymerizing butadiene in the presence of at least one organic solvent, and in the presence of: a) a catalytic system prepared in situ including: (a) at least one neodymium carboxylate, (a) at least one alkyl compound of aluminum, (A) at least one alkyl compound of aluminum containing at least one halogen atom, and b) at least one organic ester containing at least one halogen atom. Said branched polybutadiene having a high content of 1,4-cis units, depending on the branching degree and molecular weight distribution, can be advantageously used in various applications ranging from the modification of plastic materials [production, for example, of high impact polystyrene (HIPS)] to the production of tyres, in particular the production of treads and/or of sidewalls of tyres. 1) A process for the preparation of branched polybutadiene having a high content of 1 ,4-cis units which comprises polymerizing butadiene in the presence of at least one organic solvent , and in the presence of: [{'sub': '1', '(a) at least one neodymium carboxylate,'}, {'sub': '2', '(a) at least one alkyl compound of aluminum,'}, {'sub': '3', '(a) at least one alkyl compound of aluminum containing at least one halogen atom, and'}], 'a) a catalytic system prepared in situ includingb) at least one organic ester containing at least one halogen atom.2) The process for the preparation of branched polybutadiene having a high content of 1 claim 1 ,4-cis units according to claim 1 , wherein said butadiene is present in an amount ranging from 5% to 40% by weight with respect to the total weight of the organic solvent.3) The process for the preparation of branched polybutadiene having a high content of 1 claim 1 ,4-cis units according to claim 1 , wherein said organic solvent is selected from: saturated aliphatic hydrocarbons; saturated cycloaliphatic hydrocarbons; mono-olefins; halogenated ...

Подробнее
Номер записи: 68
05-06-2014 дата публикации

HOMOLEPTIC RARE EARTH TRIARYL COMPLEXES

Номер: US20140155562A1
Автор: Sundermeyer Jörg, THOMAS Oliver
Принадлежит: ROCKWOOD LITHIUM GMBH

The invention relates to chelate-stabilized homleptic triaryl compounds based on phenylphosphoranes, to methods for preparing same and to the use thereof as catalysts. According to the invention, the object is achieved by homleptic rare earth triaryl complexes of the general formula (I), where SE=Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu; X=O, CRR′; R, R=phenyl; R, R′=mutually independently H, alkyl with n=10 C atoms, phenyl or trimethylsilyl. 116-. (canceled)18. A homoleptic rare earth triaryl complex according to claim 17 , wherein if X=O claim 17 , SE=Sc claim 17 , Y claim 17 , Lu or Yb.19. A homoleptic rare earth triaryl complex according to claim 17 , wherein if X=CH claim 17 , RE=Sc claim 17 , Y claim 17 , Lu claim 17 , Sm claim 17 , Gd or Dy.20. A homoleptic rare earth triaryl complex according to selected from the group consisting of:{'sub': 6', '4', '6', '5', '2', '3, '[o-Sc(CH(CH)P=O)],'}{'sub': 6', '4', '6', '5', '2', '3, '[o-Y(CH(CH)P=O)],'}{'sub': 6', '4', '6', '5', '2', '3, '[o-Lu(CH(CH)P=O)],'}{'sub': 6', '4', '6', '5', '2', '3, '[o-Yb(CH(CH)P=O)],'}{'sub': 6', '4', '6', '5', '2', '2', '3, '[o-Y(CH(CH)P=CH)],'}{'sub': 6', '4', '6', '5', '2', '2', '3, '[o-SC(CH(CH)P=CH)],'}{'sub': 6', '4', '6', '5', '2', '2', '3, '[o-LU(CH(CH )P=CH)],'}{'sub': 6', '4', '6', '5', '2', '2', '3, '[o-Dy(CH(CH)P=CH)],'}{'sub': 6', '4', '6', '5', '2', '2', '3, '[o-Gd(CH(CH)P=CH)], and'}{'sub': 6', '4', '6', '5', '2', '2', '3, '[o-Sm(CH(CH)P=CH)].'}21. A method according of preparing a homoleptic rare earth triaryl complex according to claim 17 , wherein a triphenylphosphorane is reacted with a solvated rare earth metal halogenide or solvatized organo rare earth metal complex in the temperature range of −30° C. to 120° C.22. The method according to claim 21 , wherein the reaction is achieved by at least one of a salt elimination or hydrogen elimination.23. The method according to claim 21 , wherein the reaction is performed in situ as a one-pot ...

Подробнее
Номер записи: 69
05-06-2014 дата публикации

MICROORGANISMS AND METHODS FOR THE BIOSYNTHESIS OF BUTADIENE

Номер: US20140155567A1
Автор: Burgard Anthony P., Burk Mark J., Osterhout Robin E., Pharkya Priti, Sun Jun
Принадлежит: GENOMATICA, INC.

The invention provides non-naturally occurring microbial organisms having a butadiene pathway. The invention additionally provides methods of using such organisms to produce butadiene. 1. A non-naturally occurring microbial organism , said microbial organism having a butadiene pathway and comprising at least one exogenous nucleic acid encoding a butadiene pathway enzyme expressed in a sufficient amount to produce butadiene , said butadiene pathway comprising converting crotonyl-CoA to crotyl-alcohol using one or more butadiene pathway enzymes , wherein said butadiene pathway enzymes are selected from the group consisting of a crotonyl-CoA reductase (aldehyde forming) , a crotonaldehyde reductase (alcohol forming) a crotonyl-CoA hydrolase , synthetase , or transferase , a crotonate reductase , and a crotonyl-CoA reductase (alcohol forming).2. The non-naturally occurring microbial organism of claim 1 , wherein said microbial organism comprises two exogenous nucleic acids each encoding a butadiene pathway enzyme.34-. (canceled)5. The non-naturally occurring microbial organism of claim 1 , wherein said butadiene pathway enzymes comprise a crotonyl-CoA reductase (aldehyde forming) claim 1 , and a crotonaldehyde reductase (alcohol forming).6. The non-naturally occurring microbial organism of claim 1 , wherein said butadiene pathway enzymes comprise a crotonyl-CoA reductase (alcohol forming).7. (canceled)8. The non-naturally occurring microbial organism of claim 1 , wherein said butadiene pathway enzymes comprise a crotonyl-CoA hydrolase claim 1 , synthetase or transferase and a crotonate reductase.9. The non-naturally occurring microbial organism of claim 1 , wherein said butadiene pathway further comprises converting crotyl alcohol to butadiene using butadiene pathway enzymes claim 1 , wherein said butadiene pathway enzymes are a crotyl alcohol kinase claim 1 , a 2-butenyl-4-phosphate kinase and a butadiene synthase.10. The non-naturally occurring microbial organism of ...

Подробнее
Номер записи: 70
14-03-2019 дата публикации

Diene elastomer having a function in the middle of the chain and rubber composition containing the same

Номер: US20190077887A1
Автор: Benoit DE-GAUDEMARIS, Charlotte Dire, Florent VAULTIER, Gael COURBES
Принадлежит: Compagnie Generale des Etablissements Michelin SCA

A modified diene elastomer having a good flow resistance, and imparting to a rubber composition containing the same a good compromise of hysteresis and abrasion properties and a satisfactory processing with a view to a tire application is provided. This modified elastomer comprises: a) at least 70% by weight of a linear diene elastomer predominantly functionalized in the middle of the chain by an alkoxysilane group, optionally partly or completely hydrolyzed to silanol, the alkoxysilane group optionally bearing another function capable of interacting with a reinforcing filler, the silicon atom of the alkoxysilane group lying in the main chain of the diene elastomer; b) more than 0 and up to 30% by weight of a star-branched diene elastomer, the Mooney viscosity of said modified diene elastomer varying from 50 to 80 and the glass transition temperature (Tg) thereof varying from −100° C. to −80° C.

Подробнее
Номер записи: 71
14-03-2019 дата публикации

METHOD FOR SYNTHESIZING A THERMOPLASTIC ELASTOMER COMPRISING AT LEAST ONE POLY(ALPHA-METHYLSTYRENE) BLOCK

Номер: US20190077900A1
Автор: MATMOUR Rachid, NGO Robert
Принадлежит: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

A method for synthesizing a thermoplastic elastomer comprising at least one polydiene block and at least one other poly(α-methylstyrene) block comprises: 1. A method for synthesizing a thermoplastic elastomer comprising at least one polydiene block and at least one other poly(α-methylstyrene) block , wherein the elastomer comprises the following steps:1. of polymerizing at least one diene monomer in a starting reaction medium comprising an anionic polymerization initiator and an aprotic non-polar solvent; a. at the end of the polymerization of step 1., maintaining the reaction medium containing the living diene elastomer obtained previously and α-methylstyrene at a positive temperature, below the ceiling temperature for the polymerization of α-methylstyrene;', 'b. cooling the reaction medium obtained at the end of the preceding step a., to a temperature below 0° C.;', 'c. simultaneously, successively or prior to the cooling step, adding a purified aprotic polar solvent to the reaction medium with a volume ratio of the polar solvent to the non-polar solvent of less than 1; and', 'd. propagating the polymerization of α-methylstyrene to the living polydiene chain;, '2. of polymerizing α-methylstyrene to the living polydiene chain obtained in the preceding step comprising3. of terminating the polymerization and recovering the thermoplastic polymer.2. A method according to claim 1 , wherein the diene monomer is butadiene.31. A method according to claim 1 , wherein claim 1 , during step claim 1 , the diene monomer is copolymerized with another monomer.4. A method according to claim 3 , wherein the vinyl aromatic monomer is styrene.5. A method according to claim 1 , wherein the anionic polymerization initiator is an organometallic compound comprising at least one carbon-alkali metal bond.6. A method according to claim 1 , wherein the anionic polymerization initiator is monofunctional.7. A method according to claim 1 , wherein the anionic polymerization initiator is ...

Подробнее
Номер записи: 72
22-03-2018 дата публикации

"Conjugated Diene Polymer and Modified Conjugated Diene Polymer Produced Using the Same, Rubber Composition for Tire, And Rubber Composition for Rubber Belt"

Номер: US20180079844A1
Автор: Koji Shiba, Masahiro Tanaka, Masato Murakami, Michinori Suzuki, Mitsuharu Anbe, Naomi Okamoto
Принадлежит: UBE Industries Ltd

A conjugated diene polymer having a high content of cis-1,4-structures with a high activity, a conjugated diene polymer and a modified conjugated diene polymer using the same, a rubber composition for a tire, and a rubber composition for a rubber belt. Described are a catalyst for a conjugated diene polymerization including: a non-metallocene type gadolinium compound (A) represented by the general formula (1); an ionic compound (B) formed of a non-coordinating anion and a cation; and an organic metal compound (C) of an element selected from the group consisting of a group 2, a group 12, and a group 13 of the periodic table, a conjugated diene polymer and a modified conjugated diene polymer obtained using the same, a rubber composition for a tire, and a rubber composition for a rubber belt.

Подробнее
Номер записи: 73
26-03-2015 дата публикации

Novel neodymium compound and catalyst for diene polymerization including the same

Номер: US20150087500A1
Автор: Hyo Jin Bae, Jeong Heon Ahn, Kyoung Hwan OH, Sae Young YUN, Woo Jin Cho
Принадлежит: LG Chem Ltd

The present invention relates to a neodymium compound represented by Formula 1 and a catalyst for diene polymerization including the same.

Подробнее
Номер записи: 74
19-03-2020 дата публикации

Modified Conjugated Diene-based Polymer and Method for Preparing the Same

Номер: US20200087419A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, Kang Suk Youn, Kim Su Hwa
Принадлежит: LG CHEM, LTD.

The present invention relates to a modified conjugated diene-based polymer having a high modification ratio with improved compounding properties by being excellent affinity with a filler and a method for preparing the same. The modified conjugated diene-based polymer thus prepared includes a functional group derived from a compound represented by Formula 1 at one terminal, and has excellent affinity with a filler. If the modified conjugated diene-based polymer is applied to a rubber composition, excellent processability, tensile strength and viscoelasticity may be achieved. 2. The modified conjugated diene-based polymer according to claim 1 , wherein in Formula 1 claim 1 , Rand Rare each independently an alkylene group of 1 to 10 carbon atoms claim 1 ,{'sup': 2', '6', '7, 'Ris a trivalent hydrocarbon group of 1 to 10 carbon atoms, which is substituted with —RCOOR,'}{'sup': 4', '6, 'Rand Rare single bonds,'}{'sup': '7', 'Ris an alkyl group of 1 to 20 carbon atoms, and'}{'sup': 9', '11, 'Rto Rare each independently an alkyl group of 1 to 20 carbon atoms.'}5. The method for preparing the modified conjugated diene-based polymer according to claim 4 , wherein the catalyst composition is prepared by mixing the lanthanide rare earth element-containing compound claim 4 , the first alkylating agent claim 4 , the second alkylating agent claim 4 , the halide and the conjugated diene-based monomer at a temperature of −30° C. to −20° C. in the presence of a hydrocarbon-based solvent claim 4 , and standing at a temperature of −30° C. to −20° C. for 24 hours to 36 hours.7. The method for preparing the modified conjugated diene-based polymer according to claim 4 , wherein the first alkylating agent is one or more aluminoxanes selected from the group consisting of methylaluminoxane claim 4 , modified methylaluminoxane claim 4 , ethylaluminoxane claim 4 , n-propylaluminoxane claim 4 , isopropylaluminoxane claim 4 , n-butylaluminoxane claim 4 , isobutylaluminoxane claim 4 , n- ...

Подробнее
Номер записи: 75
07-04-2016 дата публикации

CONJUGATED DIENE POLYMER AND METHOD FOR PRODUCING SAME

Номер: US20160096910A1
Автор: BANDO Fumiaki, Hayano Shigetaka, OKUNO Shingo, OUCHI Makoto, SAWAMOTO Mitsuo
Принадлежит:

Conjugated diene polymer comprising at least a conjugated diene monomer unit, the conjugated diene polymer has a number-average molecular weight (Mn) in terms of polystyrene of 1,000 to 1,000,000, a ratio (Mw/Mn) of a weight-average molecular weight (Mw) to the number-average molecular weight (Mn) of lower than 2.0 and the polymer bears a halogen atom at a terminal of the polymer chain. Method for producing the conjugated diene polymer comprises subjecting a monomer containing at least a conjugated diene to living radical polymerization using a polymerization initiator comprising a halogenocyclopentadienyl triorganophosphine η-olefin ruthenium complex represented by formula (6) (and an organic halide. 3. The method of claim 1 , wherein 10% or higher of all conjugated diene polymer chains have a halogen atom at its terminal.9. The method of claim 1 , wherein the polymerization is carried out by causing a halogenocyclopentadienyl ruthenium tetramer represented by formula (12) claim 1 , a phosphine compound represented by PRRR(in which R claim 1 , Rand Rare the same as R claim 1 , Rand Rof formula (6)) and an electron-withdrawing olefin represented by formula (10) to react in a polymerization solvent to form a halogenocyclopentadienyl triorganophosphine η-olefin ruthenium complex represented by formula (6) in the reaction system claim 1 , and then adding a monomer claim 1 , containing at least a conjugated diene monomer claim 1 , and an organic halide to the complex claim 1 ,{'br': None, 'sub': 3', '4, '[LRu(μ-X)]\u2003\u2003(12)'}wherein in formula (12) L is the same as L of formula (6); and X represents a chlorine atom, a bromine atom or an iodine atom.10. The method of claim 2 , wherein the polymerization is carried out by causing a halogenocyclopentadienyl ruthenium tetramer represented by formula (12) claim 2 , a phosphine compound represented by PRRR(in which R claim 2 , Rand Rare the same as R claim 2 , Rand Rof formula (6)) and an electron-withdrawing olefin ...

Подробнее
Номер записи: 76
21-04-2016 дата публикации

PROCESS FOR PRODUCING POLYDIENES

Номер: US20160108153A1
Автор: Luo Steven, McCauley Kevin M.
Принадлежит:

A method for producing a polydiene, the method comprising of combining a lanthanide compound, an alkylating agent, a halogen source, and optionally conjugated diene monomer to form an active preformed catalyst; independent of step (i), introducing an amine with conjugated diene monomer to be polymerized; independent of step (i), introducing the active preformed catalyst to the conjugated diene monomer to be polymerized to form an active polymerization mixture, where the active polymerization mixture includes less than 10% by weight, based on the total weight of the active polymerization mixture, of a solvent; and allowing the monomer to be polymerized to polymerize in the presence of the amine. 1. A method for producing a polydiene , the method comprising:(i) combining a lanthanide compound, an alkylating agent, a halogen source, and optionally conjugated diene monomer to form an active preformed catalyst;(ii) independent of step (i), introducing an amine with conjugated diene monomer to be polymerized;(iii) independent of step (i), introducing the active preformed catalyst to the conjugated diene monomer to be polymerized to form an active polymerization mixture, where the active polymerization mixture includes less than 10% by weight, based on the total weight of the active polymerization mixture, of a solvent; and(iv) allowing the monomer to be polymerized to polymerize in the presence of the amine.2. The method of claim 1 , where the amine is defined by the formula NR claim 1 , where each R claim 1 , which may be the same or different claim 1 , is a hydrocarbyl group or substituted hydrocarbyl group claim 1 , or where two or more R groups combine to form a divalent or trivalent organic group claim 1 , and where the hydrocarbyl group claim 1 , including any hydrocarbyl group forming a substituted hydrocarbyl group claim 1 , is selected from the group consisting of alkyl claim 1 , cycloalkyl claim 1 , substituted cycloalkyl claim 1 , alkenyl claim 1 , cycloalkenyl ...

Подробнее
Номер записи: 77
21-04-2016 дата публикации

ACCELERATOR SYSTEM, A COMPOSITION COMPRISING A SYNTHETIC ISOPRENE POLYMER AND THE ACCELERATOR SYSTEM, AND DIPPED GOODS MADE FROM THE COMPOSITION

Номер: US20160108154A1
Автор: KRUTZER Lambertus Leonardus Marie
Принадлежит: KRATON POLYMERS U.S. LLC

This invention relates to an accelerator system comprising a sulphur donor, a carbamate or combination of carbamates as the only accelerator and optionally sulphur and optionally an activator, characterized in that the carbamate is a zinc dihydrocarbyldithiocarbamate, or a combination of zinc dihydrocarbyldithiocarbamates; a composition comprising a synthetic isoprene polymer latex and the accelerator system, and dipped goods made therefrom. 1. A composition comprising: (a) a synthetic isoprene polymer; and (b) an accelerator system with respect to 100 parts by weight of the synthetic isoprene polymer wherein the composition comprises:0.5 to 10 phr of a thiuram as sulphur donor:0.05 to 2.0 phr of a carbamate or combination of carbamates as the only accelerator andoptionally at most 5.0 phr sulphur andoptionally at most 2.5 phr of an activator, characterized in that the carbamate is a zinc dihydrocarbyldithiocarbamate, or a combination of zinc dihydrocarbyldithiocarbamates.2. The composition according to claim 1 , wherein the hydrocarbyl groups independently may be alkyl or (substituted) aryl groups claim 1 , preferably wherein the aryl group(s) (independently) have 6 to 12 carbon atoms and/or preferably wherein the alkyl group(s) (independently) have 1 to 6 carbon atoms.3. The composition according to claim 1 , wherein the carbamate is a zinc dialkyldithiocarbamate claim 1 , preferably zinc dibutyldithiocarbamate (ZDBC) or zinc diethyldithiocarbamate (ZDEC) claim 1 , or a combination of ZDBC and ZDEC.4. A good comprising a composition a comprising synthetic isoprene polymer latex and an accelerator system claim 1 , comprising 0.5 to 10 phr of a thiuram as sulphur donor claim 1 , 0.05 to 2.0 phr of a carbamate as the only accelerator and optionally at most 5.0 phr sulphur and optionally at most 2.5 phr of an activator claim 1 , wherein the carbamate is a zinc dihydrocarbyldithiocarbamate claim 1 , or a combination of zinc dihydrocarbyldithiocarbamates.5. The good ...

Подробнее
Номер записи: 78
03-07-2014 дата публикации

DIP-FORMED SYNTHETIC POLYISOPRENE LATEX ARTICLES WITH IMPROVED INTRAPARTICLE AND INTERPARTICLE CROSSLINKS

Номер: US20140186628A1
Автор: Amarasekera Sugath, KUNG ADELINE AI LIN, Lucas David M., Narasimhan Dave
Принадлежит: ANSELL HEALTHCARE PRODUCTS LLC

A synthetic polyisoprene latex emulsion has pre-vulcanization composition and post vulcanization composition. The pre-vulcanization composition comprises soluble sulfur with high Sring structure that is catalytically broken by a zinc dithiocarbamate. Surfactants present in the pre-vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre-vulcanizing the particles. The degree of pre-vulcanization is verified by isopropanol index test. The latex emulsion has post-vulcanization composition with accelerators that crosslink inter-particle region during post vulcanization cure cycle. The dipped synthetic polyisoprene article is substantially uniformly cured both in the inter-particle and intra-particle regions and reliably exhibits high cross link density, uniform distribution of double bonds in TEM and zinc segregation at the boundaries or original particles by electron microprobe analysis. The films exhibit high tensile strength, tensile modulus, tear strength, burst pressure and burst volume. 120-. (canceled)21. A synthetic polyisoprene elastomeric glove or condom made of a layer of elastomer comprising:synthetic polyisoprene particles;inter-polyisoprene particle crosslinks; andintra-polyisoprene particle crosslinks,wherein the intra-polyisoprene particle crosslinks and inter-polyisoprene particle crosslinks are substantially uniformly distributed among and between the synthetic polyisoprene particles.22. The glove or condom of claim 21 , wherein such uniformity is measured by one or more of the following(a) the glove or condom exhibits a substantially conchoidal fracture when fractured at liquid nitrogen temperature, or(b) the glove or condom exhibits a fracture surface with an absence of scanning electron microscope-viewable intra-polyisoprene particle and inter-polyisoprene particle features when ruptured at room temperature, or(c) osmium tetroxide ...

Подробнее
Номер записи: 79
23-04-2015 дата публикации

METHOD FOR PRODUCING POLYMERIZATION CATALYST COMPOSITION, POLYMERIZATION CATALYST COMPOSITION, METHOD FOR PRODUCING POLYMER COMPOSITION, AND POLYMER COMPOSITION

Номер: US20150112021A1
Автор: Kaita Shojiro, Matsushita Junko
Принадлежит: BRIDGESTONE CORPORATION

A method for producing a polymer containing silica that does not involve long kneading time, and a polymer composition having an intended low heat generation property. A polymerization catalyst composition is produced by mixing and aging a second element and a third element, and then adding a first element to the mixture to react the first element with the mixture. The first element contains a compound that contains a rare earth metal element, the second element contains a compound represented by the following formula (X), and the third element contains silica. YRRR(X) (In the formula, Y is a metal; Rand Rare hydrogen atoms or hydrocarbon groups; and Ris a hydrocarbon group, and R, R, and Rare the same as or different from each other, a, b, and c are 0 or 1.) 1. A method for producing a polymerization catalyst composition , comprising:mixing and aging a second element and a third element, and then adding a first element to the mixture to react the first element with the mixture,wherein the first element is a compound that contains a rare earth element (REE-containing compound) wherein the REE-containing compound contains a rare earth element compound (REE compound) or a reactant of the REE compound with a Lewis base, {'br': None, 'sup': 1', '2', '3, 'sub': a', 'b', 'c, 'YRRR\u2003\u2003(X)'}, 'the second element contains a compound represented by the following formula (X)wherein:{'sup': 1', '2', '3', '1', '2', '3, 'Y is a metal selected from Group 1, Group 2, Group 12, and Group 13 of the periodic table; Rand Rare hydrogen atoms or hydrocarbon groups each having 1 to 10 carbon atoms; and Ris a hydrocarbon group having 1 to 10 carbon atoms, R, R, and Rare the same as or different from each other, with a being 1 and b and c both being 0 when Y is a metal selected from Group 1 of the periodic table, a and b being 1 and c being 0 when Y is a metal selected from Group 2 and Group 12 of the periodic table, and a, b, and c are all 1 when Y is a metal selected from Group 13 ...

Подробнее
Номер записи: 80
03-07-2014 дата публикации

Method for producing polydienes and polydiene copolymers with reduced cold flow

Номер: US20140187725A1
Автор: Steven Luo
Принадлежит: Bridgestone Corp

A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with coumarin or a substituted coumarin compound.

Подробнее
Номер записи: 81
26-04-2018 дата публикации

Polymerization initiator, modified conjugated diene-based polymer, and methods for preparing them

Номер: US20180112015A1
Автор: Ho Young Lee, Min Sik Mun, No Ma Kim
Принадлежит: LG Chem Ltd

The present invention relates to a polymerization initiator represented by Formula 1, a modified conjugated diene-based polymer, methods for preparing them, a rubber composition comprising the modified conjugated diene-based polymer, and a tire prepared from the rubber composition. (In Formula 1, the definition of each substituent is the same as defined in the description.)

Подробнее
Номер записи: 82
09-06-2022 дата публикации

PHOSPHINIC VANADIUM COMPLEX, CATALYTIC SYSTEM COMPRISING SAID PHOSPHINIC VANADIUM COMPLEX AND PROCESS FOR THE (CO) POLYMERIZATION OF CONJUGATED DIENES

Номер: US20220177500A1
Автор: FORNI Alessandra, LEONE Giuseppe, Masi Francesco, RICCI Giovanni, Sommazzi Anna
Принадлежит:

Vanadium phosphinic complex having general formula (I) or (II): 16-. (canceled)8. The catalyst and at least one co-catalyst for (co) polymerization of conjugated diener according to claim 7 , wherein in said catalyst comprising said phosphinic vanadium complex having general formula (I) or (II):(i) X is an anion selected from halogen;{'sub': 1', '1', '20, 'R, identical or different among them, are a hydrogen atom; or are selected from a C-Calkyl group linear or branched; or are selected from an optionally substituted cycloalkyl group;'}n is an integer 0 or 1;{'sub': '2', 'R, identical or different among them, are selected from an optionally substituted aryl group; or'}(ii) X is an anion selected from chlorine, bromine, and iodine;{'sub': 1', '4', '20, 'R, identical or different among them, are a hydrogen atom; or are selected from C-Calkyl linear or branched; or are selected from an optionally substituted cycloalkyl group;'}n is an integer 2;{'sub': '2', 'R, identical or different among them, are selected from an optionally substituted aryl group; or'}{'sub': 3', '1', '20, 'R, identical or different among them, are selected from a C-Calkyl group, linear or branched; or are selected from an optionally substituted aryl group;'}{'sub': 5', '5', '4', '2, 'R4 represents a group —NRwherein Ris a hydrogen atom; or Ris a group —(CH)p- wherein p is 2.'}9. The catalyst and at least one co-catalyst for (co) polymerization of conjugated diener according to claim 7 , wherein in said catalyst comprising said phosphinic vanadium complex having general formula (I) or (II):(i) X is an anion selected from chlorine, bromine, and iodine;{'sub': '1', 'R, identical or different among them, are a hydrogen atom; or are selected from methyl, ethyl, iso-propyl, and tert-butyl; or are selected from cyclopentyl and cyclohexyl;'}n is an integer 0;R2, identical or different among them, are phenyl; or(ii) X is an anion selected from chlorine, bromine, and iodine;{'sub': '1', 'R, identical or ...

Подробнее
Номер записи: 83
27-04-2017 дата публикации

Chemical and gas-resistant, high-pressure, large-bore bonded flexible rubber pipe and method for producing the same

Номер: US20170114930A1
Автор: Bereczkné Urbán Mónika, Grépály István, Kádár Zalán, Katona Tamás, Kis Lajos, Nagy Tibor, Szöllõsi Györgyi
Принадлежит:

A high-pressure, large-bore bonded flexible rubber pipe resistant to aggressive chemicals and gases, particularly for conveying gas or oil, the flexible pipe having a liner made of poly(vinylidene-fluoride) homopolymer or copolymer wherein a hydrogenated nitrile rubber-based, peroxide-vulcanized rubber compound 2 is bonded to the poly(vinylidene-fluoride) liner, which has a Mooney 05, 150° C. scorch time of at least 10 minutes. Further, a method for manufacturing such hoses, the method including vulcanization performed at a temperature of at least 160° C. 1. A high-pressure , large-bore bonded flexible rubber pipe resistant to aggressive chemicals and gases , particularly for conveying gas or crude oil , the flexible pipe comprising a liner made of poly(vinylidene-fluoride) homopolymer or copolymer , with at least 80 mole % of the monomeric units being vinylidene-fluoride and a hydrogenated nitrile rubber-based rubber compound vulcanized with peroxide , which has a Mooney 05 , 150° C. scorch time of at least 10 minutes , bonded to the poly(vinylidene-fluoride) liner.2. The flexible rubber pipe according to claim 1 , wherein the melting point of the PVDF liner is above 150° C.3. The flexible rubber pipe according to claim 1 , wherein the hydrogenated nitrile rubber-based rubber compound is vulcanized with a peroxide having a half-life at 150° C. of at least 1 hour.4. The flexible rubber pipe according to claim 3 , wherein the hydrogenated nitrile rubber-based rubber compound is vulcanized with either one of 2 claim 3 ,5-dimethyl-2 claim 3 ,5-di(t-butylperoxy)-3-hexyne claim 3 ,3 claim 3 ,3 claim 3 ,5 claim 3 ,7 claim 3 ,7-pentamethyl-1 claim 3 ,2 claim 3 ,4-trioxepane claim 3 , di-tert-butyl peroxide claim 3 , or a combination thereof.5. The flexible rubber pipe according to claim 3 , wherein the hydrogenated nitrile rubber-based rubber compound is vulcanized with either one of cumene hydroperoxide claim 3 , diisopropylbenzene hydroperoxide claim 3 , t-butyl ...

Подробнее
Номер записи: 84
13-05-2021 дата публикации

THERMOFORMABLE AND SCRATCH-RESISTANT PHOTOPOLYMER COATINGS

Номер: US20210139711A1
Автор: ANDRÉ Bruno, CRIQUI Adrien, Croutxe-Barghorn Céline, EL FOUAHILI Bandar, LEROY Catherine, PLANEIX Henri
Принадлежит:

The present invention relates, in particular, to a coating composition, cross-linkable under the action of UV-visible radiation, which has the advantage of being thermoformable and having excellent scratch and abrasion resistant properties. The present invention also relates to a method for preparing a thermoformable coating, resistant to scratches and abrasion, comprising the cross-linking of a composition according to the invention under the action of UV-visible radiation. The present invention also relates to a method for protecting a substrate against scratches and abrasion, preferably said substrate being thermoformable or thermodrapable. The present invention also relates to a coated article, resistant to scratches and abrasion, preferably a thermoformable or thermodrapable coated article that can be obtained by a method according to the invention, as well as the use of a composition according to the invention to protect a possibly thermoformable or thermodrapable substrate against scratches and abrasion. The present invention also relates to the use of a composition according to the invention for preparing thermoformable coatings, resistant to scratches and abrasion. The present invention further relates to a thermoformable coating, resistant to scratches and abrasion, characterised in that it results from cross-linking under the action of UV-visible radiation at least one composition according to the invention. 1. A varnish composition , crosslinkable under the action of UV-visible radiation , comprising:A) at least one multifunctional urethane acrylate oligomer comprising 2 to 9 acrylate functions, which is the product of the reaction of a diisocyanate or triisocyanate with a hydroxylated acrylate monomer, preferably with a stoichiometric excess of a hydroxylated acrylate monomer, said hydroxylated acrylate monomer being a random mixture resulting from the reaction of a polyol with a stoichiometric deficiency of acrylic acid, with the proviso that the chain ...

Подробнее
Номер записи: 85
13-05-2021 дата публикации

Flame Retardant Adhesive Composition

Номер: US20210139751A1
Автор: Chen JinQian, Lu Cheng, Qiu Xueyu Shawn, Sun Chunyu, Wu Hao, Yuheng Yang
Принадлежит:

This invention relates to adhesive compositions and more particularly to (meth)acrylic adhesive compositions for electrical device such as with improved bonding strength, thermal conductivity as well as flame retardancy. 1. An adhesive composition comprising ,a) an ethylenically unsaturated monomer,b) a polymeric elastomer,c) an initiator,d) a vinyl-terminated liquid rubber,e) a thermal conductive filler, andf) a diorganylphosphinate salt.2. An adhesive composition according to claim 1 , wherein the ethylenically unsaturated monomer is selected from the group consisting of (meth)acrylate claim 1 , N-t-butylacrylamide claim 1 , (meth)acrylic acid claim 1 , 2-ethylhexyl (meth)acrylate and mixtures thereof.3. An adhesive composition according to claim 1 , wherein the polymeric elastomer is selected from the group consisting of core shell polymers claim 1 , block copolymer rubbers and mixtures thereof.4. An adhesive composition according to claim 1 , wherein the vinyl-terminated liquid rubber is selected from the group consisting of methacrylate-terminated polybutadiene claim 1 , acrylate-terminated polybutadiene claim 1 , methacrylate-terminated polybutadiene-acrylonitrile copolymers claim 1 , acrylate-terminated polybutadiene-acrylonitrile copolymers claim 1 , and mixtures thereof.5. An adhesive composition according to claim 1 , wherein the vinyl-terminated liquid rubber is selected from the group consisting of methacrylate-terminated polybutadiene claim 1 , acrylate-terminated polybutadiene and mixtures thereof.6. An adhesive composition according to claim 1 , wherein the thermal conductive filler is selected from the group consisting of metal hydroxide claim 1 , metal oxide claim 1 , metal claim 1 , ceramic claim 1 , and mixture thereof.7. An adhesive composition according to claim 1 , wherein the diorganylphosphinate salt is selected from the group consisting of aluminum trisdiethyl phosphinate claim 1 , ammomium trisdiethyl phosphinate aluminum trismethylethyl ...

Подробнее
Номер записи: 86
07-05-2015 дата публикации

POLYMERIZATION CATALYST COMPOSITION, METHOD FOR PRODUCING SYNTHETIC POLYISOPRENE, AND SYNTHETIC POLYISOPRENE

Номер: US20150126695A1
Автор: Kaita Shojiro, TAMAKI Satoru
Принадлежит: BRIDGESTONE CORPORATION

A polymerization catalyst composition that, without accompanying excessive gelation, allows efficient synthesis of high molecular weight polyisoprene under industrial conditions is provided. The polymerization catalyst composition contains: 1. Polymerization catalyst composition containing: {'br': None, 'sup': 1', '2', '3, 'M-(NQ)(NQ)(NQ)\u2003\u2003(i)'}, 'a rare earth element compound (component (A)) represented by the following general formula (i){'sup': 1', '2', '3, '(provided that M is at least one selected from lanthanide, scandium, and yttrium; and NQ, NQ, and NQare of amide group and may be either the same or different from one another and have M-N binding);'}at least one (component (B)) selected from an ionic compound and a halogen compound; and {'br': None, 'sup': 1', '2', '3, 'sub': a', 'b', 'c, 'YRRR\u2003\u2003(X)'}, 'a compound (component (C)) represented by the following general formula (X){'sup': 1', '2', '3', '1', '2', '3, '(provided that Y is metal selected from Group 1, Group 2, Group 12, and Group 13 of the periodic table; Rand Rare of a hydrocarbon group having 1 to 10 carbon atoms or a hydrogen atom; Ris of the hydrocarbon group having 1 to 10 carbon atoms; R, R, and Rmay be the same or different from one another; when Y is metal selected from Group 1 of the periodic table, a is 1 and b and c are 0; when Y is metal selected from Group 2 or Group 12 of the periodic table, a and b are 1 and c is 0; and when Y is metal selected from Group 13 of the periodic table, a, b, and c are all 1).'}3. The method of producing synthetic polyisoprene according to claim 2 , wherein a combining molar ratio of the isoprene monomer claim 2 , the component (A) claim 2 , and the component (C) satisfies:(isoprene monomer)/(component (A)) is at least 5000,(component (C)/(component (A)) is at least 10, and(isoprene monomer)/(component (C)) is no more than 5000.4. The method of producing synthetic polyisoprene according to claim 2 , wherein the polymerization catalyst ...

Подробнее
Номер записи: 87
07-05-2015 дата публикации

Rubber composition for tire, tire member, method for producing biomass-derived rubber, and pneumatic tire

Номер: US20150126698A1
Автор: Ryoji Kojima, Yuka Yokoyama
Принадлежит: Sumitomo Rubber Industries Ltd

The present invention provides rubber compositions for tires capable of providing tire components and pneumatic tires having low-temperature properties and abrasion resistance that are equivalent to those of tire components and pneumatic tires formed from conventional synthetic rubber, respectively, while meeting the demand for a sound material-cycle society. The present invention relates to rubber compositions for tires containing a biomass-derived rubber obtained by polymerizing a biomass-derived monomer component, the biomass-derived rubber having a pMC (percent modern carbon) value of 1% or greater as determined in conformity with ASTM D6866-10, and having a Tg (glass transition temperature) value of −120° C. to −80° C.

Подробнее
Номер записи: 88
03-05-2018 дата публикации

PRECURSOR COMPOSITION, PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR PRODUCING PRECURSOR COMPOSITION, CURED FILM, METHOD FOR PRODUCING CURED FILM, AND SEMICONDUCTOR DEVICE

Номер: US20180118887A1
Автор: IWAI Yu, Kawabata Takeshi, KOYAMA Ichiro, Shibuya Akinori
Принадлежит: FUJIFILM Corporation

Provided are photosensitive resin compositions having a wide exposure latitude, a precursor composition for providing such a photosensitive resin composition, a method for producing a precursor composition, a cured film, a method for producing a cured film; and a semiconductor device. The precursor composition is a precursor composition containing at least one kind of heterocycle-containing polymer precursor, in which the heterocycle-containing polymer precursor is selected from a polyimide precursor and a polybenzoxazole precursor; and the dispersity which is a weight-average molecular weight/a number-average molecular weight of the heterocycle-containing polymer precursor is 2.5 or more. 1. A precursor composition comprising:at least one kind of heterocycle-containing polymer precursor,wherein the heterocycle-containing polymer precursor is selected from a polyimide precursor and a polybenzoxazole precursor, andthe dispersity, which is a weight-average molecular weight/a number-average molecular weight of the heterocycle-containing polymer precursor, is 2.5 or more.2. The precursor composition according to claim 1 ,wherein the heterocycle-containing polymer precursor has a polymerizable unsaturated group.3. The precursor composition according to claim 1 ,wherein the dispersity is 2.8 or more.4. The precursor composition according to claim 1 ,wherein the heterocycle-containing polymer precursor contains two or more kinds of heterocycle-containing polymer precursors which are different in weight-average molecular weight and at least one kind of repeating units constituting the heterocycle-containing polymer precursor to each other6. The precursor composition according to claim 5 ,{'sup': 1', '2, 'wherein at least one of Aor Ais an oxygen atom.'}7. The precursor composition according to claim 5 ,{'sup': '112', 'sub': '2', 'wherein Ris a single bond, or a group selected from a hydrocarbon group having 1 to 10 carbon atoms, which may be substituted with a fluorine atom ...

Подробнее
Номер записи: 89
25-04-2019 дата публикации

THERMOPLASTIC ELASTOMER COMPOSITION AND METHOD FOR PRODUCING THE SAME

Номер: US20190119471A1
Автор: Chino Keisuke, SUZUKI Hiroaki
Принадлежит: JXTG NIPPON OIL & ENERGY CORPORATION

A thermoplastic elastomer composition including at least one elastomer component selected from the group consisting of elastomeric polymers (A) each of which has a side chain (a) containing a hydrogen-bond cross-linkable moiety having a carbonyl-containing group and/or a nitrogen-containing heterocycle and has a glass-transition point of 25° C. or below, and elastomeric polymers (B) each of which contains a hydrogen-bond cross-linkable moiety and a covalent-bond cross-linking moiety in a side chain and has a glass-transition point of 25° C. or below, wherein the elastomer component is at least one reaction product selected from the group consisting of specific reaction products (I) to (VI), and the composition further comprises an organically modified clay, a content ratio of which is 20 parts by mass or less relative to 100 parts by mass of the elastomer component. 1. A thermoplastic elastomer composition comprising at least one elastomer component selected from the group consisting of elastomeric polymers (A) each of which has a side chain (a) containing a hydrogen-bond cross-linkable moiety having a carbonyl-containing group and/or a nitrogen-containing heterocycle and has a glass-transition point of 25° C. or below , and elastomeric polymers (B) each of which contains a hydrogen-bond cross-linkable moiety and a covalent-bond cross-linking moiety in a side chain and has a glass-transition point of 25° C. or below , whereinthe elastomer component is at least one reaction product selected from the group consisting of the following reaction products (I) to (VI):a reaction product (I) of a maleic anhydride-modified elastomeric polymer with at least one compound among hydrocarbon compounds each having two or more substituents of at least one type selected from hydroxy groups, thiol groups, and amino groups;a reaction product (II) of a hydroxy group-containing elastomeric polymer with a compound having two or more substituents of at least one type selected from carboxy ...

Подробнее
Номер записи: 90
02-05-2019 дата публикации

Process for producing epoxidized polymers

Номер: US20190127495A1
Автор: Howard Colvin, Nicolas Sauty
Принадлежит: Cooper Tire and Rubber Co

A process for forming an epoxidized rubber including dissolving a rubber in a solvent and epoxidizing the rubber in the presence of an epoxidation reagent. The solvent is selected such that the rubber is soluble therein but the epoxidized rubber precipitates.

Подробнее
Номер записи: 91
23-04-2020 дата публикации

Modified Conjugated Diene-Based Polymer And Method Of Preparing The Same

Номер: US20200123277A1
Автор: Choi Won Mun, Joe Dae June, Kim Cheol Jae, Kim Ji Eun
Принадлежит: LG CHEM, LTD.

The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer. 2. The modifier of claim 1 , wherein claim 1 , in Formula 1 claim 1 ,{'sup': 1', '2', '3', '7', '8', '9, 'R, R, and Rare each independently —SiRRR,'}{'sup': 4', '5, 'Rand Rare each independently an alkylene group having 2 to 10 carbon atoms, and'}{'sup': 6', '10, 'Ris —COOR,'}{'sup': 7', '9, 'wherein Rto Rare each independently one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an arylalkyl group having 7 to 12 carbon atoms, an alkoxyalkyl group having 2 to 10 carbon atoms, a phenoxyalkyl group having 7 to 12 carbon atoms, and an aminoalkyl group having 1 to 10 carbon atoms, and'}{'sup': '10', 'Ris an alkyl group having 1 to 10 carbon atoms which is substituted or unsubstituted with an alkyl group having 1 to 10 carbon atoms.'}4. The modifier of claim 1 , wherein the modifier is a modifier for a conjugated diene-based polymer.6. The method of claim 5 , wherein claim 5 , in Formulae 1 to 5 claim 5 ,{'sup': 1', '2', '3', '7', '8', '9, 'R, R, and Rare each independently —SiRRR,'}{'sup': 4', '5, 'Rand Rare each independently an alkylene group having 2 to 10 carbon atoms, and'}{'sup': 6', '10, 'Ris —COOR,'}{'sup': 7', '9, 'wherein Rto Rare each independently one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an arylalkyl group having 7 to 12 carbon atoms, an alkoxyalkyl group having 2 to 10 carbon atoms, a phenoxyalkyl group having 7 to 12 carbon atoms, and an aminoalkyl group having 1 to 10 carbon atoms, and'}{'sup': '10', 'Ris an alkyl group having 1 to 10 ...

Подробнее
Номер записи: 92
23-04-2020 дата публикации

Modified Conjugated Diene-Based Polymer And Method Of Preparing The Same

Номер: US20200123287A1
Автор: Choi Seung Ho, Choi Won Mun, Joe Dae June, Lim Won Taeck
Принадлежит: LG CHEM, LTD.

The present invention relates to a modifier represented by Formula 1, a method of preparing the same, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer. 2. The modifier of claim 1 , whereinin Formula 1,{'sub': 1', 'x, 'sup': 11', '12', '11', '12, 'Ris one selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an arylalkyl group having 7 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms, a phenoxyalkyl group having 7 to 20 carbon atoms, an aminoalkyl group having 1 to 20 carbon atoms, and —[RO]R(where Ris an alkylene group having 2 to 10 carbon atoms, Ris selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, an aryl group having 6 to 18 carbon atoms, and an arylalkyl group having 7 to 18 carbon atoms, and x is an integer of 2 to 10), and'}{'sub': 3', '4, 'Rand Rare each independently an alkyl group having 1 to 10 carbon atoms which is substituted or unsubstituted with at least one substituent selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and an aryl group having 6 to 12 carbon atoms.'}4. The modifier of claim 1 , wherein the modifier is a modifier for a conjugated diene-based polymer.6. The method of claim 5 , wherein the compound represented by Formula 2 and the halogen compound are reacted at a molar ratio of 1:0.9 to 1:1.7. The method of claim 5 , wherein the salt-type compound represented by Formula 3 and the alkylamine are reacted at a molar ratio of 1:1.5 to 1:3.8. The method of claim 5 , wherein the compound represented by Formula 4 and the alkyl ketone compound are reacted at a molar ratio of 1 ...

Подробнее
Номер записи: 93
23-04-2020 дата публикации

Method Of Preparing Conjugated Diene-Based Polymer By Continuous Polymerization

Номер: US20200123288A1
Автор: Ahn Jeong Heon, CHOI Soo Young, Park Sung Ho, Yoo Suk Joon
Принадлежит: LG CHEM, LTD.

A method of preparing a conjugated diene-based polymer by continuous polymerization using two or more reactors is provided. The method of preparing a conjugated diene-based polymer includes a conjugated diene-based polymer having excellent cis 1,4 bond content and linearity, by adjusting the ratio of a polymer and a monomer in each reactor and by adjusting the retention time in a second reactor and resolving the deterioration phenomenon of physical properties, while improving productivity by reducing the contamination of the reactors. 1. A method of preparing a conjugated diene-based polymer by a continuous preparation method which is performed in two or more reactors , the method comprising:injecting a conjugated diene-based monomer to a first reactor to prepare a conjugated diene-based polymer, wherein a polymerization reaction is performed so that a weight ratio of a polymer to a monomer in a reaction mixture in the first reactor is 5.6 or more, and transporting the reaction mixture to a second reactor; andperforming a polymerization reaction in the second reactor so that a weight ratio of a polymer to a monomer in a reaction mixture is 49 or less,wherein the polymerization in the first reactor and the second reactor is performed in the presence of a catalyst composition in a hydrocarbon solvent, anda retention time in the second reactor is 75% or less of a retention time in the first reactor.2. The method of preparing a conjugated diene-based polymer of claim 1 , wherein the polymerization in the first reactor is performed so that the weight ratio of the polymer to the monomer in the reaction mixture is 9.0 or more.3. The method of preparing a conjugated diene-based polymer of claim 1 , wherein the polymerization in the second reactor is performed so that the weight ratio of the polymer to the monomer in the reaction mixture is 24 or less.4. The method of preparing a conjugated diene-based polymer of claim 1 , wherein the retention time in the second reactor is ...

Подробнее
Номер записи: 94
23-04-2020 дата публикации

Catalyst Composition For Preparing Conjugated Diene-based Polymer And Conjugated Diene-based Polymer Preparing Using The Same

Номер: US20200123289A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, Kang Suk Youn, Kim Ji Eun, Oh Kyoung Hwan, Park Sung Ho
Принадлежит: LG CHEM, LTD.

The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. 2. The conjugated diene-based polymer of claim 1 , wherein the conjugated diene-based polymer has a mooney viscosity of 10 MU to 90 MU at 100° C. and a polydispersity of 3.4 or less.3. A rubber composition comprising the conjugated diene-based polymer according to .4. A tire part manufactured by using the rubber composition according to . This application is a divisional of U.S. application Ser. No. 15/554,907, filed Aug. 31, 2017 which is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/KR2016/006802, filed on Jun. 24, 2016, which claims priority from Korean Patent Application Nos. 2015-0089906, filed on Jun. 24, 2015, and 2015-0184238, filed on Dec. 22, 2015, the entire contents of which are incorporated herein by reference.The present invention relates to a catalyst composition for preparing a conjugated diene-based polymer and a conjugated diene-based polymer prepared using the same.According to the gradual increase in demand for a rubber composition in various manufacturing fields for tires, impact resistant polystyrene, the sole of shoes, golf balls, etc., the value of conjugated diene-based polymer which is a synthetic rubber, specifically, a butadiene-based polymer is increasing as an alternative material to natural rubber of which the produced amount is insufficient.Meanwhile, in a conjugated diene-based polymer, linearity and the degree of branching greatly affect the physical properties of the polymer. In particular, with a decrease in linearity or an increase in the ...

Подробнее
Номер записи: 95
03-06-2021 дата публикации

Rubber composition for tire tread and tire manufactured by using the same

Номер: US20210162807A1
Автор: Ahn Sae Um, Jeon Byeong Joo, LIM Ki Won
Принадлежит:

Disclosed are a rubber composition for tire tread and a tire manufactured using the same, in which the rubber composition for tire tread comprises a raw material rubber, which comprises a first solution-polymerized styrene-butadiene rubber with a low glass transition temperature (Tg) and a second solution-polymerized styrene-butadiene rubber with a high glass transition temperature (Tg), a reinforcing filler, a silane coupling agent, a functionalized liquid polymer, and a first resin with a high glass transition temperature and a second resin with a low glass transition temperature. 1. A rubber composition for tire tread , comprising:100 parts by weight of a raw material rubber, which comprises 30 to 60 parts by weight of a first solution-polymerized styrene-butadiene rubber with a glass transition temperature (Tg) of −70° C. to −45° C.; and 20 to 50 parts by weight of a second solution-polymerized styrene-butadiene rubber with a glass transition temperature (Tg) of −50° C. to −20° C.;80 to 110 parts by weight of a reinforcing filler;6 to 12 parts by weight of a silane coupling agent;5 to 20 parts by weight of a functionalized liquid polymer;5 to 30 parts by weight of a first resin with a glass transition temperature (Tg) of 20° C. to 90° C.; and5 to 20 parts by weight of a second resin with a glass transition temperature (Tg) of −25° C. to −10° C.2. The rubber composition for tire tread of claim 1 , wherein the first solution-polymerized styrene-butadiene rubber has a styrene content of 5 wt % to 30 wt % claim 1 , has a vinyl content of 10 wt % to 35 wt % claim 1 , and has a molecular weight distribution (a poly dispersity index) of 2 to 5 claim 1 , and both ends are modified into an amine or aminosilane claim 1 , andwherein oil is contained in an amount of 0 to 35 parts by weight relative to 100 parts by weight of a rubber component.3. The rubber composition for tire tread of claim 1 , wherein the second solution-polymerized styrene-butadiene rubber has a styrene ...

Подробнее
Номер записи: 96
03-06-2021 дата публикации

WATER-BASED RESIN COMPOSITION, WATER-BASED PAINT, AND ARTICLE

Номер: US20210163651A1
Автор: Kawahara Hideaki, Kosaka Norio, NAKAZAWA Daisuke
Принадлежит:

There is provided a water-based resin composition that contains a polymer (A) containing, as essential raw materials, a hydrogenated polybutadiene (a1) with an iodine value in the range of 5 to 25, a monomer (a2) with an acid group, and a monomer (a3) with a hydroxy group, a basic compound (B), and an aqueous medium (C), wherein the hydrogenated polybutadiene (a1) constitutes 4% to 38% by mass of the raw materials of the polymer (A), and the polymer (A) has an acid value in the range of 10 to 65 mgKOH/g. A water-based resin composition of the present invention has high storage stability and forms a coating film with good physical properties, such as high adhesiveness to various substrates and high blocking resistance, and is therefore suitably used in a water-based paint. 1. A water-based resin composition comprising: a polymer (A) containing a hydrogenated polybutadiene (a1) with an iodine value in the range of 5 to 25 , a monomer (a2) with an acid group , and a monomer (a3) with a hydroxy group as essential raw materials; a basic compound (B); and an aqueous medium (C) , wherein the hydrogenated polybutadiene (a1) constitutes 4% to 38% by mass of the raw materials of the polymer (A) , and the polymer (A) has an acid value in the range of 10 to 65 mgKOH/g.2. The water-based resin composition according to claim 1 , wherein the hydrogenated polybutadiene (a1) has a number-average molecular weight in the range of 1 claim 1 ,000 to 5 claim 1 ,000.3. The water-based resin composition according to claim 1 , wherein the polymer (A) has a hydroxyl value in the range of 5 to 50 mgKOH/g.4. A water-based paint comprising the water-based resin composition according to .5. An article comprising a coating film of the water-based paint according to . The present invention relates to a water-based resin composition useful for a water-based paint.Due to their high weatherability, flexibility, strength, and adhesiveness, acrylic resins have been widely used in paints, inks, ...

Подробнее
Номер записи: 97
03-06-2021 дата публикации

COHESIVE COMPOSITIONS AND ARTICLES

Номер: US20210163792A1
Автор: Emslander Jeffrey O., Grym Allyson V., Harnden Shannon R.A., Johnson Mitchell A.F., Leniczek Katelyn M., LU Ying-Yuh, McMullen Lacey E., Patnode Gregg A., West Shaun M.
Принадлежит:

The present disclosure relates generally to cohesive compositions, articles including a cohesive composition, and methods of making such compositions and articles. In some embodiments, the cohesive compositions include rubber, thermoplastic elastomer, filler, and UV or heat stabilizers. In some embodiments, the cohesive articles include the cohesive composition described herein adjacent to a backing. In some embodiments, the cohesive articles further include at least one of a tie layer and a seal layer. Some embodiments of the present disclosure further relate to packaging materials that include the cohesive articles of the present disclosure. Such packaging materials may also include, for example, a cushioning layer and an outer layer. In other embodiments, the present disclosure relates to fastening systems comprising cohesive compositions and films described herein. 1. A cohesive composition , comprising:about 30 to about 70 wt % rubber;about 10 to about 50 wt % thermoplastic elastomer; andabout 10 to about 45 wt % fillerwherein the wt % is based on the total weight of rubber, thermoplastic elastomer, and filler wherein the composition is extrudable, capable of being blown as a film, or both.2. (canceled)3. The cohesive composition of claim 1 , comprising:about 35 wt % to about 65 wt % rubber.45-. (canceled)6. The cohesive composition of claim 1 , wherein the rubber is 1 claim 1 ,4 cis polyisoprene synthetic rubber.7. The cohesive composition of claim 1 , comprising:about 15 wt % to about 45 wt % thermoplastic elastomer.89-. (canceled)10. The cohesive composition of claim 1 , wherein the thermoplastic elastomer includes at least one block copolymer selected from the group consisting of styrene-isoprene claim 1 , styrene butadiene isoprene claim 1 , styrene isoprene butadiene claim 1 , styrene-butadiene claim 1 , styrene-ethylene/butadiene claim 1 , styrene-ethylene-propylene claim 1 , and mixtures thereof claim 1 , and wherein the weight percent of the diblock ...

Подробнее
Номер записи: 98
17-05-2018 дата публикации

AQUEOUS SEALING AGENT COMPOSITION FOR NON-AQUEOUS ELECTROLYTE BATTERIES

Номер: US20180134880A1
Автор: MAEDA Kouichirou
Принадлежит: ZEON CORPORATION

An aqueous dispersion which contains a conjugated diene polymer as the main component is contained at a solid content weight of 70 to 97 wt %. 1. An aqueous sealing agent composition for a non-aqueous electrolyte battery , comprising an aqueous dispersion in an amount of 70 to 97 wt % in terms of weight of a solid content , the aqueous dispersion containing a conjugated diene-based polymer as a main component.2. The aqueous sealing agent composition for a non-aqueous electrolyte battery according to claim 1 , further comprising a water-soluble polymer in an amount of 3 to 30 wt % in terms of weight of a solid content claim 1 , wherein a total solid content concentration is 5 to 70 wt %.3. The aqueous sealing agent composition for a non-aqueous electrolyte battery according to claim 1 , wherein the conjugated diene-based polymer is polybutadiene claim 1 , and the polybutadiene is used as a latex of polybutadiene obtained by emulsion polymerization using an anionic surfactant.4. The aqueous sealing agent composition for a non-aqueous electrolyte battery according to claim 2 , wherein the water-soluble polymer has a viscosity of 4 to 500 mPa·s when being formed into a 4% aqueous solution. The present invention relates to an aqueous sealing agent composition used for a non-aqueous electrolyte battery.A lithium ion secondary battery is often used for a power source of a small electronic device such as a notebook type personal computer, a mobile phone, or a PDA. A lithium ion secondary battery has been further used also for an automobile application in recent years. As a range of use of a lithium ion secondary battery is expanded, a demand for performance and safety of the lithium ion secondary battery (hereinafter, also simply referred to as a battery) is increasing. These batteries are usually used repeatedly by charge and discharge operation. However, due to repeated charge and discharge, a volume change of an electrode and heat generation caused by charge and ...

Подробнее
Номер записи: 99
07-08-2014 дата публикации

ARTICLES CONTAINING PRECISELY BRANCHED FUNCTIONAL POLYMERIC PHASE CHANGE MATERIALS

Номер: US20140221575A1
Автор: Hartmann Mark, Henton David E.
Принадлежит: Outlast Technologies, LLC

In accordance with one aspect a temperature regulating article comprises a substrate and a polymeric phase change material bound to the substrate, wherein the polymeric phase change material is characterized by including a precisely branched polymer with substantially equally spaced repeating sidechains. In other embodiments the polymeric phase change material includes between 20 and 200 branches per 1000 carbon units, has a latent heat of at least 5 Joules per gram, and a transition temperature between 0° C. and 40° C. 1. A temperature regulating article comprising:a substrate; anda polymeric phase change material bound to the substrate, wherein the polymeric phase change material is characterized by including a precisely branched polymer with substantially equally spaced repeating sidechains each separated by carbon segments of the backbone having at least three carbon atoms, wherein the length of the carbon segments of the backbone controls a degree of crystallization of the polymeric phase change material at a given transition temperature, wherein the polymeric phase change material includes between 20 and 200 branches per 1000 carbon atoms,wherein the polymeric phase change material has a latent heat of at least 5 Joules per gram and a transition temperature between 0° C. and 40° C. dependent upon the length of the carbon segments of the backbone, and{'sub': 3', '2', '5', 'n', '2n+1', '3', '2', '5, 'wherein the sidechains are selected from the group consisting of CH, CH, CH, OCH, and OCH.'}2. The temperature regulating article of claim 1 , wherein the polymeric phase change material includes a mole percentage of the branches of between 4% and 50%.3. The temperature regulating article of claim 1 , wherein the polymeric phase change material includes a weight percentage of the branches of between 5% and 50%.4. The temperature regulating article of claim 1 , wherein the polymeric phase change material includes between 20 and 45 branch units per 1000 carbon atoms.5 ...

Подробнее
Номер записи: 100