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METHOD OF PREPARATION Of an ELASTOMER DIENIQUE, SUCH AS a POLYBUTADIENE. 发明申请

2023-08-03 3630 1783K 0

专利信息

申请日期 2025-07-10 申请号 FR06003594
公开(公告)号 FR2899903A1 公开(公告)日 2007-10-19
公开国别 FR 申请人省市代码 全国
申请人 MICHELIN SOC TECH; MICHELIN RECH TECH
简介 Making a diene elastomer e.g. butadiene homo- or copolymer containing 90% of cis-1, 4 isomer and a polydispersity index of =2.1 comprises continuous and discontinuous polymerization of a diene monomer in the presence of a catalytic system, which comprises : optionally a conjugated preformed diene; salts of rare earth metals e.g. a salt of a carboxylic-/organic phosphoric acid; an inert hydrocarbon solvent; an alkylating agent comprising an allylic aluminum derivative (I); and halogen donating group e.g. aluminum alkyl halides, excluding aluminum alkyl sesquihalides. Making a diene elastomer e.g. butadiene homo- or copolymer containing 90% of cis-1, 4 isomer and a polydispersity index of =2.1 comprises continuous and discontinuous polymerization of a diene monomer in the presence of a catalytic system, which comprises : optionally a conjugated preformed diene; salts of rare earth metals e.g. a salt of a carboxylic-/organic phosphoric acid; an inert hydrocarbon solvent; an alkylating agent comprising an allylic aluminum derivative (I) of formula R1 nAlR2(3-n); and halogen donating group e.g. aluminum alkyl halides, excluding aluminum alkyl sesquihalides. R1 : optionally saturated alkyl or hydride; R2 : allyl, preferably butadienyl, isoprenyl, oligobutadienyl or oligoisoprenyl; n : 1-3; and Al : aluminum.


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