181 |
Method for producing modified polymer and hydrogenated product thereof |
US14292386 |
2014-05-30 |
US09593192B2 |
2017-03-14 |
Kentarou Ueba; Sadataka Oota; Yoshirou Sakura |
A method for producing a modified polymer or a hydrogenated product thereof, includes polymerizing a monomer in a polymerization solvent which includes a hydrocarbon-based solvent, using a polymerization initiator to obtain a reaction solution. A functional group is introduced into the modified polymer or the hydrogenated product thereof, using a compound having the functional group protected with a silyl group. The reaction solution is separated into a solvent fraction including the hydrocarbon-based solvent, and a solid fraction including the modified polymer or the hydrogenated product thereof. The solvent fraction separated from the reaction solution is distilled to obtain a low-boiling fraction including the hydrocarbon-based solvent and a silanol compound. At least part of the silanol compound is removed from the low-boiling fraction by liquid-liquid extraction. At least part of a raffinate of the low-boiling fraction is recycled as a polymerization solvent. |
182 |
MODIFIED CONJUGATED DIENE POLYMER AND METHOD FOR PREPARING THE SAME |
US15357734 |
2016-11-21 |
US20170066850A1 |
2017-03-09 |
Ro Mi LEE; Sang Mi LEE; Choon Hwa LEE; Byung Hoon YOON; Jin Young KIM; Moon Seok CHUN |
Disclosed are a modified conjugated diene polymer and a method for preparing the same. The modified conjugated diene polymer and the method for preparing the same advantageously provide superior compatibility with an inorganic filler, heat generation, tensile strength and abrasion resistance, low fuel consumption and excellent resistance on wet roads. |
183 |
END-FUNCTIONAL CONJUGATED DIENE-BASED POLYMER AND METHOD OF PREPARING SAME |
US15120312 |
2015-09-18 |
US20170066849A1 |
2017-03-09 |
Jin-Young Kim; Ro-Mi Lee; No-Ma Kim |
Disclosed are a modified conjugated diene-based polymer, a method of preparing the same, and a rubber composition including the same. |
184 |
MODIFIED CONJUGATED DIENE POLYMER, MODIFIED RUBBER COMPOSITION COMPRISING SAME, AND METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER |
US15119901 |
2015-07-20 |
US20170066848A1 |
2017-03-09 |
Moon-Seok Chun; Soo-Yong Lee; Seong-Du Lee |
Disclosed are a method of preparing a modified conjugated diene-based polymer, a modified conjugated diene-based polymer prepared thereby, and a rubber composition and a tire, including the modified conjugated diene-based polymer. The method of preparing the modified conjugated diene-based polymer includes (a) polymerizing a vinyl aromatic monomer and a conjugated diene monomer using an organo-alkali metal compound in the presence of a hydrocarbon solvent, thus forming an active polymer having an alkali metal end and (b) coupling or linking the active polymer having the alkali metal end with a compound represented by Chemical Formula 1. |
185 |
Process for producing modified conjugated diene-based polymer, modified conjugated diene-based polymer, and polymer composition |
US13431931 |
2012-03-27 |
US09587042B2 |
2017-03-07 |
Mana Ito |
An object of the present invention is to provide a process for producing a modified conjugated diene-based polymer suitable for preparing a polymer composition excellent in the fuel cost saving effect. The present invention provides a process for producing a modified conjugated diene-based polymer, comprising reacting a conjugated diene-based polymer having a monomer unit based on a conjugated diene compound and a monomer unit based on a compound represented by the following formula (1), with an organometallic compound, and reacting the resulting reaction product with a hydrocarbyloxysilane compound: wherein R11, R12, R13, R14 and R15 each represent a hydrogen atom or an alkyl group, at least one of R11, R12, R13, R14 and R15 is an alkyl group, R16, R17 and R18 each represent a hydrogen atom or a hydrocarbyl group, R19 represents a hydrocarbylene group, and k represents 0 or 1. |
186 |
Dual Reactive Functional Groups for Resins in Tires |
US15118639 |
2015-03-06 |
US20170058057A1 |
2017-03-02 |
Edward J. Blok; Ian C. Stewart; Anthony J. Dias; Yong Yang; Jingwen Zhang |
This invention relates to a functionalized resin composition having the formula P-X-S-W where S is a spacer selected from at least one of C2-C40 straight chain and branched alkyl, C6-C40 aromatics, butadiene, isoprene, and combinations thereof, P is a polymer backbone selected from at least one of dicyclopentadiene (DCPD)-based polymers, cyclopentadiene (CPD)-based polymers, DCPD-styrene copolymers, C5 homopolymers and copolymer resins, C5-styrene copolymer resins, terpene homopolymer or copolymer resins, pinene homopolymer or copolymer resins, C9 homopolymers and copolymer resins, C5/C9 copolymer resins, alpha-methylstyrene homopolymer or copolymer resins, and combinations thereof, X is one or more reactive groups, and W is a silane. |
187 |
Underwater Pelletizing Method For Low Viscosity Hydrocarbon Resins |
US15283647 |
2016-10-03 |
US20170022315A1 |
2017-01-26 |
Eugene R. Uhl; Edward J. Blok; Dennis Kumor; Randal H. Kerstetter, III; Ronald DeYoung |
An underwater pelletizing method for pelletizing brittle hydrocarbon resins with low melt viscosity. A feed material comprising the hydrocarbon resin is formed into a melt, extruded through a die into a water bath below the Tg of the hydrocarbon resin to form a plurality of extrudates and cut adjacent the die surface to form a slurry of resin pellets. A graft monomer and/or other reactants, such as a hydrosilylation agent, may be introduced into the resin melt to chemically modify the hydrocarbon resin. |
188 |
MODIFIED CONJUGATED DIENE-BASED POLYMER, PREPARATION METHOD THEREFOR, AND RUBBER COMPOSITION CONTAINING SAME |
US15121848 |
2015-12-11 |
US20170015761A1 |
2017-01-19 |
He-Seung LEE; No-Ma KIM; Hae-Sung SOHN |
Disclosed are a modified conjugated diene-based polymer represented by specific Chemical Formula, a method of preparing the same, and a rubber composition including the same. |
189 |
MODIFIED CONJUGATED DIENE POLYMER, MODIFIED RUBBER COMPOSITION COMPRISING SAME, AND METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER |
US15120570 |
2015-07-20 |
US20170008979A1 |
2017-01-12 |
Moon-Seok Chun; Soo-Yong Lee; Seong-Du Lee |
Disclosed are a method of preparing a modified conjugated diene-based polymer, a modified conjugated diene-based polymer prepared thereby, and a rubber composition and a tire, including the modified conjugated diene-based polymer. The method of preparing the modified conjugated diene-based polymer includes (a) polymerizing a vinyl aromatic monomer and a conjugated diene monomer using an organo-alkali metal compound in the presence of a hydrocarbon solvent, thus forming an active polymer having an alkali metal end; and (b) coupling or linking the active polymer having the alkali metal end with a compound represented by Chemical Formula 1 or 2. |
190 |
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 |
US20170002104A1 |
2017-01-05 |
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. |
191 |
Silane Modified Elastomeric Polymers |
US15103111 |
2013-12-09 |
US20160369015A1 |
2016-12-22 |
Christian Doring; Sven Thiele; Daniel Heidenreich |
The present invention relates to backbone-modified elastomeric polymers. The invention also relates to polymer compositions comprising such modified polymers, to the use of such compositions in the preparation of vulcanized polymer compositions, and to articles prepared from the same. The modified polymers are useful in the preparation of vulcanized, i.e. cross-linked, elastomeric compositions having relatively low hysteresis loss. Such vulcanized compositions are useful in many articles, including tire treads having low heat build-up, low rolling resistance, good wet grip and ice grip, in combination with a good balance of other desirable physical and chemical properties, for example, abrasion resistance and tensile strength. Moreover, the unvulcanized poly mer compositions exhibit excellent processability. |
192 |
MODIFIED CONJUGATED DIENE-BASED POLYMER, MODIFIED RUBBER COMPOSITION CONTAINING SAME, AND METHOD FOR PREPARING MODIFIED CONJUGATED DIENE-BASED POLYMER |
US15117653 |
2015-06-10 |
US20160355612A1 |
2016-12-08 |
Moon-Seok Chun; Soo-Yong Lee; Seong-Du Lee |
Disclosed are a method of preparing a modified conjugated diene-based polymer, a modified conjugated diene-based polymer prepared thereby, a rubber composition including the modified conjugated diene-based polymer, and a tire including the rubber composition. The method of preparing the modified conjugated diene-based polymer includes (a) polymerizing a vinyl aromatic monomer and a conjugated diene monomer through continuous solution polymerization using a multifunctional anionic polymerization initiator in the presence of a hydrocarbon solvent, thus forming an active polymer having a reactive end; and (b) coupling or linking the reactive end of the active polymer with an aminosiloxane compound. |
193 |
TIRE TREAD |
US15103139 |
2014-12-09 |
US20160319116A1 |
2016-11-03 |
PHILIPPE LABRUNIE; BENOÏT DE GAUDEMARIS |
The present invention relates to a tire tread that comprises a rubber composition based on at least: an elastomer matrix comprising more than 50 wt % of a first diene elastomer bearing a silanol function and a pendent amine function; a silica at a level between 120 and 140 phr; a coupling agent; and a plasticizer system comprising a hydrocarbon-containing resin having a Tg above 20° C. according to a content A ranging from 5 to 60 phr, a hydrocarbon-containing resin having a Tg above 20° C. and a liquid plasticizer according to a content B ranging from 0 to 60 phr, a liquid plasticizer, it being understood that the total level A+B is at least equal to 60 phr, preferably ranging from 60 to 90 phr. The tread according to the invention makes it possible to improve the compromise between wet grip and dry grip of a tire with low rolling resistance. |
194 |
METHOD FOR SYNTHESISING A DIENE POLYMER FUNCTIONALISED BY PENDANT EPOXIDE GROUPS ALONG THE CHAIN |
US15105384 |
2014-12-05 |
US20160319061A1 |
2016-11-03 |
Rachid MATMOUR |
A method for synthesizing a modified polymer comprising epoxide groups along the polymer chain, by a hydrosilylation reaction of the unsaturations with a hydrosilane bearing an epoxide function in the presence of a suitable catalyst is provided. The method is simple, reproducible and able to be used on an industrial scale, and makes it possible to obtain high grafting yields, since they may reach 100%. |
195 |
MODIFIED DIENE ELASTOMER AND RUBBER COMPOSITION CONTAINING SAME |
US15105181 |
2014-12-18 |
US20160319045A1 |
2016-11-03 |
Charlotte DIRE; Jean-Marc MARECHAL; Margarita DORATO |
A modified diene elastomer, a process of preparing the elastomer is provided. The modified diene elastomer comprises: (i) from 40 to 80% by weight of the entity functionalized at the chain end by an alkylalkoxysilane group, optionally partially or completely hydrolysed to give silanol, bearing a primary, secondary or tertiary amine function, and bonded to the elastomer via the silicon atom, (ii) from 5 to 45% by weight of the entity functionalized in the middle of the chain by an alkoxysilane group, optionally partially or completely hydrolysed to give silanol, bearing a primary, secondary or tertiary amine function, and the silicon atom of which bonds the two pieces of the chain, (iii) from 3 to 30% by weight of the three-branch star-branched entity containing a silane functional group, bearing a primary, secondary or tertiary amine function, and the silicon atom of which bonds the three branches of the chain. |
196 |
Underwater pelletizing method for low viscosity hydrocarbon resins |
US13821683 |
2011-08-25 |
US09481795B2 |
2016-11-01 |
Eugene Ronald Uhl; Edward J. Blok; Dennis Kumor; Randal Howard Kerstetter, III; Ronald DeYoung |
An underwater pelletizing method for pelletizing brittle hydrocarbon resins with low melt viscosity. A feed material comprising the hydrocarbon resin is formed into a melt, extruded through a die into a water bath below the Tg of the hydrocarbon resin to form a plurality of extrudates and cut adjacent the die surface to form a slurry of resin pellets. A graft monomer and/or other reactants, such as a hydrosilylation agent, may be introduced into the resin melt to chemically modify the hydrocarbon resin. |
197 |
Method For Producing Polymeric Compositions Including Functionalized Polymers |
US15103433 |
2014-12-12 |
US20160312028A1 |
2016-10-27 |
Terrence E. Hogan; Mark N. Dedecker; Jessica C. Kurasch; Gabrielle L. Mcintyre; Karen Maglione; Christine M. Rademacher |
A method for producing a functionalized polymer, the method comprising the steps of polymerizing conjugated diene monomer, optionally together with a copolymerizable monomer, within a solvent to produce a polymerization mixture including a polymer having a reactive terminus, coupling a portion of the polymer having a reactive terminus with a hydrocarbyloxysiloxane to produce a polymerization mixture including polymer coupled with the hydrocarbyloxysiloxane and residual polymer having a reactive terminues, reacting the residual polymer having a reactive terminus with a functionalizing agent having at least one hydrocarbyloxy functionality to produce a polymerization mixture including a functionalized polymer and the polymer coupled with the hydrocarbyloxysiloxane, and desolventizing the polymerization mixture including the functionalized polymer and the polymer coupled with the hydrocarbyloxysiloxane. |
198 |
PNEUMATIC TIRE |
US15032382 |
2014-10-27 |
US20160264772A1 |
2016-09-15 |
Kazuyuki NISHIOKA; Kenichi UESAKA; Takahiro KAWACHI; Masako NAKATANI; Tatsuhiro TANAKA; Fumiya KATO |
The present invention provides a pneumatic tire provided with a tread formed from a rubber composition that can achieve balanced improvements in fuel economy and wet-grip performance. The present invention relates to a pneumatic tire provided with a tread formed from a rubber composition, the rubber composition containing a rubber component, silica, and a specific silane coupling agent, the rubber component containing, based on 100% by mass of the rubber component, not less than 5% by mass of a conjugated diene polymer containing a constituent unit based on a conjugated diene and a specific constituent unit, at least one terminal of the polymer being modified with a specific compound, the rubber composition containing the silica in an amount of 5 to 150 parts by mass relative to 100 parts by mass of the rubber component. |
199 |
Silane-Functionalized Hydrocarbon Polymer Modifiers for Elastomeric Compositions |
US15165241 |
2016-05-26 |
US20160264689A1 |
2016-09-15 |
Edward J. Blok; Anthony J. Dias; Robert J. Claassen, II; Eugene R. Uhl |
An elastomeric composition and method incorporating a hydrocarbon polymer modifier with improved permanence. The composition comprises elastomer, filler and silane-functionalized hydrocarbon polymer modifier (Si-HPM) adapted to couple the Si-HPM to the elastomer, filler or both, wherein the Si-HPM comprises an interpolymer of monomers chosen from piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, amylenes, and combinations thereof. The method comprises melt processing a mixture to form the elastomeric composition in the shape of an article, wherein the mixture comprises elastomer, Si-HPM, silica, bifunctional organosilane crosslinking agent; and curing the elastomeric composition to form the article. Also disclosed are a silylated hydrocarbon polymer modifier coupled with a bifunctional organosilane crosslinking agent, and a silica-coupled hydrocarbon polymer modifier coupled to the silica via the bifunctional organosilane crosslinking agent. |
200 |
Hydrolysable silanes |
US14362625 |
2012-12-07 |
US09440997B2 |
2016-09-13 |
Michael Wolfgang Backer; Thomas Chaussee; Sebastien Grofils; Fabien Rialland |
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 tertiary amine group and an ether or thioether linkage. |