专利号:US-8933181-B2 优先权日:2006-10-06 标题:Branched polymers and methods for their synthesis and use 发明人:MOURI HIROSHI; LUO STEVEN; KURASCH JESSICA; ROBERTSON CHRISTOPHER G; WARREN SANDRA 权利人:MOURI HIROSHI; LUO STEVEN; KURASCH JESSICA; ROBERTSON CHRISTOPHER G; WARREN SANDRA; BRIDGESTONE CORP 摘要:Branched polymers including multi-branched polymers, functionalized branched polymers, star-branched polymers, and dendigraft polymers. Methods for the synthesis of branched polymers and method for the use of branched polymers in tire components are also included.
专利号:US-9000170-B2 优先权日:2012-03-19 标 题:Process for the preparation of tetracarboxynaphthalenediimide compounds disubstituted with heteroaryl groups 发明人:SCHIMPERNA GIULIANA; PELLEGRINO ANDREA; CHIABERGE STEFANO; BIANCHI GABRIELE 权利人:ENI SPA 摘要:A process for the preparation of a tetracarboxynaphthalenediimide compound disubstituted with heteroaryl groups having general formula (I), comprising the reaction of at least one disubstituted N,N′-dialkyl-1,5,8-tetracarboxynaphthalenediimide with at least one heteroaryl compound. Said tetracarboxynaphthalenediimide compound disubstituted with heteroaryl groups can be advantageously used as monomer in the synthesis of semiconductor polymers which can be advantageously used in the construction of organic field effect transistors (OFET) or of organic thin film transistors (OTFT).
专利号:US-11767388-B1 优先权日:2019-09-18 标 题 :Silicon-functionalized rubber 发明人:ENSIGN SETH CODY; VIELHABER MARGARET FLOOK; JOHNGRASS JENA LYNN; MA LIQING 权利人:GOODYEAR TIRE & RUBBER 摘要:The compatibility between silica fillers and synthetic rubbers which are synthesized utilizing lanthanide-based catalyst systems, such as neodymium catalyst systems can be improved by terminating the polymerization with a vinyl silane terminating agent. In doing so the vinyl silane is allowed to react with the polymer chain ends of the neodymium rubber to functionalize the chain ends of the polymer chains with silicon containing groups. This results in the rubber having better characteristics for utilization in tire rubber formulations, such a tire tread formulations, that exhibit improved wear characteristics and lower rolling resistance. The process for the synthesis of such functionalized polydiene rubber comprises (1) polymerizing a diene monomer in the presence of a lanthanide-based catalyst system, and (2) terminating the polymerization with a vinyl silane terminator. The functionalized polydiene rubber composition made by this method is comprised of a polydiene rubber which is functionalized at its chain ends with a silicon containing group.
专利号:US-8329923-B2 优先权日:2010-06-17 标 题:4, 4′ disubstituted 4H-cyclopentadithiophene and new methods for synthesizing the same 发明人:VANDERZANDE DIRK; LUTSEN LAURENCE; VAN MIERLOO SARAH 权利人:VANDERZANDE DIRK; LUTSEN LAURENCE; VAN MIERLOO SARAH; IMEC; UNIV HASSELT 摘要:The present preferred embodiments relate to a method for the synthesis of a compound having the following general formula: n nthe method comprising the step of reacting, in presence of a diprotic acid having a negative pKa, a compound having the general formula:n n nwherein R 1 and R 2 are organic groups and wherein X and Y are independently selected from the group consisting of hydrogen, chloro, bromo, iodo, boronic acid, boronate esters, borane, pseudohalogen and organotin. It further relates to compounds so obtained and to compounds resulting from the ring closure of compound (II).
专利号:CN-110746584-B 优先权日:2019-11-13 标题:Synthesis and application of conjugated polymers based on pyrazinyl diketopyrrolopyrrole
专利号:CN-110746584-A 优先权日:2019-11-13 标 题 :Synthesis and application of conjugated polymers based on pyrazinyl diketopyrrolopyrrole