公开(公告)号：ES2135517T3

公开(公告)日：1999-11-01

申请号：ES94115718

申请日：1994-10-06

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  SCHLUND RUGER DR ,  KLIMESCH ROGER DR

IPC: B44F1/12 ,  C08F8/12 ,  C08F210/02

Abstract: The preparation of carboxyl-containing copolymers of ethylene by polymer-analogous pyrolytic ester cleavage of copolymers, comprising a) from 60 to 99.9 mol% of ethylene, b) from 0.1 to 40 mol% of (C4- to C8-tert-alkyl) esters of copolymerisable C3-C12-carboxylic acids and c) from 0 to 20 mol% of further copolymerisable monomers by carrying out the pyrolytic ester cleavage at temperatures of from 150 to 250 DEG C in the presence of organic sulphonic acids, in the absence of a solvent and in the virtual absence of initiators for free-radical reactions.

公开(公告)号：ES2140579T3

公开(公告)日：2000-03-01

申请号：ES95108696

申请日：1995-06-07

Applicant: BASF AG

Inventor： SCHLUND RUGER DR ,  LUX MARTIN DR ,  EDELMANN FRANK PROF DR ,  REISSMANN ULRIKE ,  ROHDE WOLFGANG DR

IPC: C08F4/60 ,  C08F4/622 ,  C08F4/623 ,  C08F4/64 ,  C08F10/00 ,  C08F110/02

Abstract: A catalyst system (I) for the polymerisation of olefinic hydrocarbons contains (A) a metal-amidinato complex of formula (A) and opt. (B) an acceptor cpd. for substit. X in (A) as activator; M = Sub-Gp. III, IV, V or VI metal or lanthanide metal; X = negative leaving atom or gp. (these can be identical or different if (n = m) is greater than 1); R -R = C-organic or Si-organic gps.; n = valency of M in complex (A); m = 1-5; n - m = O or more. Also claimed is a process for the prodn. of homo- or copolymers of ethylene and other olefins by insertion polymerisation using catalyst (I). Also claimed are polymers of ethylene and alkyl- and aryl-substd. olefins obtd. by this process.