公开(公告)号：US3773694A

公开(公告)日：1973-11-20

申请号：US3773694D

申请日：1971-07-07

Applicant: OSAKA SODA CO LTD

Inventor： NAKATA T ,  KAWAMATA K

IPC: C07F9/06 ,  C07F9/08 ,  C08F4/58 ,  C08G65/12 ,  C08G23/14

CPC classification number: C07F9/08 ,  C07F9/06 ,  C08G65/12

Abstract: A method for the polymerization of vicinal alkylene oxides using a polymerization catalyst which is the reaction product of an organotin compound (A) with an esterified product (B), the organotin compound (A) containing at least one tin-to-carbon bond in its molecule, and the esterified product (B) being a completely or partially esterified product of oxyacid of phosphorus or derivative thereof, or a combination of reactants capable of forming such ester or derivative.