Title: Preparation of milky active initiator in production of polyether
Application Number: 90108579 Application Date: 1990.10.20
Publication Number: 1061027 Publication Date: 1992.05.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C07D303/02,C08G65/34
Applicant(s) Name: Lanzhou Oil Refining and Petrochemical General Fac Address: 730060
Inventor(s) Name: Cui Wenfeng, Wang Jianlan
Attorney & Agent: WANG HAIZHU
Abstract:
     The present invention relates to an improved method for preparation of polyethernon-ionic surfactant, it is suitable for preparatin of epoxy ethane and epoxy propane polyether or copolyether in an intermittent agitater, which uses strong base as catalyst and uses calcohol, amine and alkylphenol as initiators. Said invention features that a kind of dispersing liquid is led in the system, the formation of active initiator and the early polymerization are all proceeded in emulsion. Compared with the available methods, said invention possesses of the advantages of uniform reaction , no appearance of "induction period", and advantageous to realize autocontrolled and program controlled process.
Time: 3