序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 Composition and method for manufacturing the same tire tread JP2001587043 2001-05-21 JP5530049B2 2014-06-25 ピエール ロベール; ジャン−ミシェル ファヴロ; フィリップ ローブリ; ファニ バルボタン
62 Desolvation method of a low molecular weight diene polymer JP2002510558 2001-06-04 JP2004503625A 2004-02-05 リンチ,トーマス
ブタジエンまたは他の共役ジエン単量体を溶媒、例えばヘキサンなど中で重合させて比較的低い分子量を有する重合体を生成させることにより、ゴム組成物における加工助剤として用いるに適したブタジエン型重合体が生成する。 前記重合体をカップリングさせ、通常の脱溶媒方法を用いて溶媒を混合物から除去することを可能にするレベルにまでその分子量を高くする。 脱溶媒後の重合体を加熱して、脱結合させることにより、この重合体を元の分子量に戻す。
63 Composition and method for manufacturing the same tire tread JP2001587043 2001-05-21 JP2003534426A 2003-11-18 ファニ バルボタン; ジャン−ミシェル ファヴロ; フィリップ ローブリ; ピエール ロベール
The present invention relates to a cross-linkable or cross-linked rubber composition having improved hysteresis properties in the cross-linked state which is useful for the manufacture of treads for tires. The rubber composition of the present invention comprises at least one diene elastomer having a molar ratio of units originating from conjugated dienes which is greater than 30% and comprising carboxylic acid functions along its chain, and a reinforcing inorganic filler. The present invention further relates to a process for preparing such a cross-linkable or cross-linked rubber composition as well as to a tire having reduced rolling resistance and a tread for a tire where the tread comprises the rubber composition of the present invention.
64 Rubber having improved interaction with silica JP6810397 1997-03-21 JPH107702A 1998-01-13 HSU WEN-LIANG; HALASA ADEL FARHAN
PROBLEM TO BE SOLVED: To obtain a modified rubber polymer having good compatibility with a silica filler by reacting an organolithium compound with a rubbery polymer in the presence of an alkali metal alkoxide, etc., and reacting the formed metallized rubber with a silane or the like. SOLUTION: A rubbery polymer is reacted with an organolithium compound in the presence of any one member selected among alkali metal alkoxides, alkali metal phenoxides and chelating tert. alkyl-1,2-ethylenediamines to obtain a metallized rubbery polymer. Next, it is reacted with a silane or a siloxane to obtain a modified rubbery polymer having improved interaction with silica. The silane or siloxane is one having two functional groups selected among alkoxyl, tert. amino, cyano, sulfonyl, epoxy and halogen groups, and the reaction is carried out in the presence of the alkali metal alkoxide or the like. A sulfur vulcanizate of a rubber blend prepared by adding 10-250phr silica filler to the modified rubbery polymer is desirably used as a tire tread.
65 Organotin compound-containing polymer and paint based on same JP4584083 1983-03-18 JPS58173110A 1983-10-12 KLOOSTER JACOB PAULUS VAN DER; OOSTERBOS JOHANNES PAULUS MARI
66 Modified conjugated diene polymer, a modified rubber composition containing same, and method for preparing modified conjugated diene polymer US15121804 2015-11-03 US10118974B2 2018-11-06 Hae-Sung Sohn; No-Ma Kim; He-Seung Lee
Disclosed are a modified conjugated diene-based polymer represented by a specific Chemical Formula and a method of preparing the same.
67 Method for producing modified conjugated diene polymer, polymer composition, crosslinked polymer and tire US14431128 2013-09-18 US10072114B2 2018-09-11 Hiroyuki Morita; Takahiro Kawai; Takeshi Yuasa; Koichiro Tani; Koji Okada; Ryoji Tanaka
A modified conjugated diene polymer obtained by modifying a conjugated diene polymer that is obtained by polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound is produced by a production method comprising a first modification step wherein an unsaturated binding site at least either in the skeleton or at the side chain of the conjugated diene polymer is reacted with a first compound having a group 4 or 13 element of the periodic table.
68 End-functional conjugated diene-based polymer and manufacturing method therefor US14911993 2014-08-26 US10030079B2 2018-07-24 Romi Lee; Yujin Kim; Noma Kim
Disclosed are an end-functionalized conjugated diene-based polymer represented by Chemical Formula 1 and a method of preparing the same.
69 METHOD FOR PREPARING MODIFIED CONJUGATE DIENE POLYMER US15741596 2016-12-16 US20180201699A1 2018-07-19 Tae Chul Lee; Hae Sung Sohn; He Seung Lee; No Ma Kim
The present invention relates to a method of preparing a modified conjugated diene-based polymer, and more particularly, to a method of preparing a modified conjugated diene-based polymer, including: (S1) preparing an active polymer with an organic metal bonded thereto by polymerizing a conjugated diene-based monomer in a hydrocarbon solvent in the presence of an organometallic compound; and (S2) mixing the active polymer prepared according to process S1 with a modifier, wherein the mixing of process S2 is performed at a Reynolds number of 20 or less for 1 minute or more, the Reynolds number being maintained within a range of ±5 of a Reynolds number when the modifier is added (wherein the range is between greater than 0 to 20 or less).
70 Aminosilane terminal modifier to which functional group has been introduced, method for producing terminal-modified conjugated diene polymer using the aminosilane terminal modifier, and terminal-modified conjugated diene polymer produced according to the method US15125809 2015-10-22 US09951150B2 2018-04-24 Seung-Ho Choi; Min-Soo Kim; Cheol-Jae Kim; Won-Mun Choi
Disclosed are an end-modified conjugated diene-based polymer configured such that the end of a conjugated diene-based polymer is coupled with an aminosilane-based end modifier, and a method of preparing the same.
71 FIRE-PROOFED ANTIVIBRATOR DEVICE FOR A RAILWAY APPLICATION US15461525 2017-03-17 US20170267260A1 2017-09-21 Yann Fromont; Nordine Addes; Stephane Avoinet; Pierre-Emmanuel Gautheret
The invention relates to an anti-vibration device (100), for example intended for a railroad application, comprising: a first frame (10), a second frame (20), a shock absorbing structure (30) for the vibrations, situated between the two frames (10, 20), and at least one fire barrier layer (40) at least partially covering the shock absorbing structure (30); characterized in that said at least one fire barrier layer (40) is a polychloroprene-based elastomer including at least one fire retardance agent chosen from among alumina trihydrate or magnesium hydroxide.
72 MODIFIED STYRENE-BUTADIENE COPOLYMER, PREPARATION METHOD THEREOF, AND RUBBER COMPOSITION INCLUDING THE SAME US15324815 2015-11-27 US20170204205A1 2017-07-20 Seung Ho Choi; Min Soo Kim; Cheol Jae Kim; Won Mun Choi
The present invention relates to a modified styrene-butadiene copolymer with a high modification ratio, including a functional group derived from a modifier represented by Formula 1, a preparation method thereof, a rubber composition including the same, and a tire manufactured from the rubber composition.
73 Functional diene elastomer with a low pi and improved cold flow, and rubber composition containing same US13989103 2011-11-23 US09624359B2 2017-04-18 Mathilde Abad; Margarita Dorato; Jean-Michel Favrot; Nathalie Simon; Jean Marc Marechal; Stéphanie De Landtsheer
The invention relates to a functionalized diene elastomer composed: a) of a diene elastomer functionalized, at the chain end or in the middle of the chain, by a tin functional group, exhibiting a monomodal distribution of molecular weights before functionalization and a polydispersity index before functionalization of less than or equal to 1.3, b) of a diene elastomer star-branched with a tin compound, exhibiting a monomodal distribution of molecular weights before star-branching and a polydispersity index before star-branching of less than or equal to 1.3, and c) of a content of less than 15% by weight, with respect to the total weight of the functionalized diene elastomer, of a non-tin-functional diene elastomer, the said diene elastomers a), b) and c) being, before optional functionalization or optional star-branching, the same in nature.
74 Pharmaceutical elastomeric articles US13570920 2012-08-09 US09580523B2 2017-02-28 Wai K. Wong; Bharat B. Sharma; Bernard D'Cruz
Elastomeric polymers and compounded elastomers having reduced amounts of leachables and improved resistance to γ-irradiation sterilization suitable for pharmaceutical stopper and seal applications. These polymers and compounded elastomers maintain their physical performances upon being exposed to γ-irradiation over time and typical use conditions. The polymer is prepared by reacting a mixture of i) a C4 to C7 isoolefin monomer, ii) a styrene based monomer, and optionally iii) a C4 to C14 multiolefin monomer wherein the polymer contains 5 to 15 wt % of styrene derived units.
75 Method of manufacturing terminal-modified polymer US14770529 2014-02-21 US09458274B2 2016-10-04 Kazuya Uenishi; Misao Hiza
A terminal-modified polymer is manufactured by performing a polymerization reaction of a vinyl aromatic monomer, a conjugated diene monomer or both in the presence of an anionic polymerization initiator: and then adding an alkoxy titanium compound thereinto to terminate the polymerization reaction. Alternatively, a terminal-modified polymer can also be manufactured by adding an titanium halide compound instead of the alkoxy titanium compound to terminate the polymerization reaction, and adding for a reaction with a lower alcohol having 1 to 4 carbon atoms. The resulting terminal-modified polymer can improve the dispersibility of silica used as a compounding agent in rubber compositions for automobile pneumatic tires and the like.
76 MODIFIED CONJUGATED DIENE POLYMER, METHOD FOR PREPARING SAME, AND RUBBER COMPOSITION CONTAINING SAME US14909902 2014-11-14 US20160159957A1 2016-06-09 Heungyeal Choi; Noma Kim; Yujin Kim; Heseung Lee; Kiseok Son
Disclosed is a method of preparing a modified conjugated diene-based polymer, including (a) polymerizing a conjugated diene monomer, or a conjugated diene monomer and an aromatic vinyl monomer, using the compound represented by Chemical Formula 1 in the presence of a hydrocarbon solvent, thus forming an active polymer having an alkali metal end, and (b) coupling or reacting the active polymer with the compound represented by Chemical Formula 2.
77 METHOD OF MANUFACTURING TERMINAL-MODIFIED POLYMER US14771724 2014-02-21 US20160009832A1 2016-01-14 Kazuya Uenishi; Misao Hiza
A terminal-modified polymer is manufactured by performing a polymerization reaction of a vinyl aromatic monomer, a conjugated diene monomer or both in the presence of an anionic polymerization initiator: and then adding an alkoxy aluminum compound thereinto to terminate the polymerization reaction. Alternatively, a terminal-modified polymer can also be manufactured by adding an aluminum halide compound instead of the alkoxy aluminum compound to terminate the polymerization reaction, and allowing for a reaction with a lower alcohol having 1 to 4 carbon atoms. The resulting terminal-modified polymer can improve the dispersibility of silica used as a compounding agent in rubber compositions for automobile pneumatic tires and the like.
78 Hydrolysable silanes and elastomer compositions containing them US14362618 2012-12-07 US09000088B2 2015-04-07 Michael Wolfgang Backer; Thomas Chaussee; Damien Deheunynck; Sebastien Grofils
This invention relates to hydrolysable silanes useful in the modification of elastomers, and as coupling agents for diene elastomer compositions containing a filler. In particular the invention relates to novel hydrolysable silanes containing a piperazine ring and an ether or thioether linkage.
79 Block diene elastomer for rubber compositions that can be used in pneumatic tires US13989188 2011-11-23 US08927643B2 2015-01-06 Jean-Michel Favrot; Nathalie Simon; Jean Marc Marechal
The invention relates to a block diene elastomer corresponding to the following formula: where: n and m are each an integer of greater than or equal to 0, such that n+m≧1 and n+m≦20, each A block is composed of a polybutadiene, each B block is composed of a diene elastomer, the molar content of units resulting from conjugated dienes of which is greater than 15%, the B blocks being identical to one another, X is an organic or inorganic group which can comprise a functional group which interacts with a reinforcing filler, the number-average molecular weight Mn1 of each A block varies from 2 500 to 20 000 g/mol, the number-average molecular weight Mn2 of each B block varies from 80 000 to 350 000 g/mol, and the content of 1,2- linkages in each A block is between 1 and 20%.
80 Composition for a tire tread and process for its preparation US10858204 2004-06-02 US20040220315A1 2004-11-04 Pierre Robert; Jean-Michel Favrot; Philippe Laubry; Fanny Barbotin
The present invention relates to a cross-linkable or cross-linked rubber composition having improved hysteresis properties in the cross-linked state which is useful for the manufacture of treads for tires. The rubber composition of the present invention comprises at least one diene elastomer having a molar ratio of units originating from conjugated dienes which is greater than 30% and comprising carboxylic acid functions along its chain, and a reinforcing inorganic filler. The present invention further relates to a process for preparing such a cross-linkable or cross-linked rubber composition as well as to a tire having reduced rolling resistance and a tread for a tire where the tread comprises the rubber composition of the present invention.
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