专利号:US-6184168-B1 优先权日:1997-09-22 标题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst 发明人:LYNCH THOMAS J 权利人:BRIDGESTONE CORP 摘要:The invention provides a catalyst composition, comprising: (a) an organolithium compound; and, (b) an organic acid salt of lanthanide series element; wherein: (1) only components (a) and (b) are required to promote the synthesis of 1,4-trans-polybutadiene; (2) the ratio of component (a) to component (b) is selected to maximize formation of the trans structure of said 1,4-trans-polybutadiene; and, (3) components (a) and (b) are selected for enabling further diblock synthesis. The invention further contemplates a process for using the catalyst to synthesize 1,4-trans-polybutadiene and other polymers and copolymers having trans configuration in the conjugated diene monomer contributed units.
专利号:US-6018007-A 优先权日:1997-09-22 标 题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
专利号:US-10011664-B2 优先权日:2011-02-04 标 题:Functionalized nitrile rubbers and the production thereof 发明人:OBRECHT WERNER; JESCHKO JULIA MARIA; NUYKEN OSKAR; SCHNEIDER MARTIN 权利人:OBRECHT WERNER; JESCHKO JULIA MARIA; NUYKEN OSKAR; SCHNEIDER MARTIN; ARLANXEO DEUTSCHLAND GMBH 摘要:Provided are new functionalized nitrile rubbers, which may optionally also be in partially or wholly hydrogenated form, and also a process for preparing them by metathesis of nitrile rubbers in the presence of a metathesis catalyst and at least one functionalized allyl compound. The new functionalized nitrile rubbers are suitable for producing vulcanizable mixtures and allow the production of vulcanizates having very stable networks. Also made possible, in particular, is the synthesis of block copolymers.
专利号:EP-0903357-B1 优先权日:1997-09-22 标 题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
专利号:CA-2247669-A1 优先权日:1997-09-22 标题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
专利号:ES-2215258-T3 优先权日:1997-09-22 标题:SYNTHESIS OF 1,4-TRANSPOLIBUTADIEN USING A CATALYST OF AN ORGANIC ACID SALT OF LANTANO.