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Process for the production of polyoxymethylene block copolymers
专利权人:
发明人:
Ilja Peckermann,Aurel Wolf,Jens Langanke,Christoph Gürtler,Jörg Hofmann
申请号:
US15129209
公开号:
US10093772B2
申请日:
2015.04.01
申请国别(地区):
US
年份:
2018
代理人:
摘要:
The invention relates to a process for producing polyoxymethylene block copolymers, comprising the step of activating the DMC catalyst in the presence of an OH-terminated polymeric formaldehyde starter compound by means of a defined amount of alkylene oxide, optionally followed by polymerization with alkylene oxides, if necessary in the presence of other comonomers. The invention further relates to polyoxymethylene block copolymers that can be obtained by means of such a process and to the use of these for producing polyurethane polymers.
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