Process for the controlled increase in the molecular weight of polyethylenes
申请人:Roth Michael
公开号:US20060128903A1
公开(公告)日:2006-06-15
The invention relates to novel cyclic hydroxylamine esters and to the use of known hydroxylamine esters selected from the group consisting of HALS (sterically hindered amine) compounds and the novel hydroxylamine esters achieving a controlled increase in the molecular weight of polyethylene.
Process for reducing the molecular weight of polypropylene
申请人:Ciba Specialty Chemicals Corporation
公开号:US07030196B2
公开(公告)日:2006-04-18
The invention relates to the use of known hydroxylamine esters selected from the group consisting of HALS (sterically hindered amine) compounds and novel hydroxylamine esters for the controlled degradation of polypropylene.
本发明涉及选自HALS(立体位阻胺)化合物组和新型羟胺酯的已知羟胺酯的使用,用于控制聚丙烯的降解。
Hydroxylamine esters as polimerization initiators
申请人:Ciba Specialty Chemicals Holding Inc.
公开号:EP1655303A2
公开(公告)日:2006-05-10
The invention relates to novel cyclic and open-chain hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer. The invention also relates to use as polymerization initiators and to the use of known hydroxylamine esters selected from the group consisting of HALS compounds and the novel hydroxylamine esters for the controlled degradation of polypropylene and for achieving a controlled increase in the molecular weight of polyethylene.