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Title:
METHOD FOR PRODUCING HYDROXYL GROUP-CONTAINING POLYETHER, METHOD FOR PRODUCING HYDROLYZABLE SILYL GROUP-CONTAINING POLYETHER, AND METHOD FOR PRODUCING URETHANE PREPOLYMER
Document Type and Number:
WIPO Patent Application WO/2014/073580
Kind Code:
A1
Abstract:
Provided is a method for producing a hydroxyl group-containing polyether with which it is possible to produce a high molecular-weight hydroxyl group-containing polyether having a narrow molecular weight distribution. A cyclic ether compound is caused by an initiator having at least one hydroxyl group per molecule to undergo a ring-opening addition reaction in the presence of a composite metal cyanide complex catalyst and a polyoxyalkylene compound (Z), and a hydroxyl group-containing polyether having a weight-average molecular weight of 5000-500,000 is produced. The polyoxyalkylene compound (Z) is a compound having a polyoxyalkylene chain derived from an alkylene oxide and having no reactive groups capable of a ring-opening addition reaction with the cyclic ether compound, and is a polyoxyalkylene compound having a weight-average molecular weight lower than that of the hydroxyl group-containing polyether.

Inventors:
ARAI TAKEAKI (JP)
SUZUKI TOMOYUKI (JP)
TOMIZUKA YUJIRO (JP)
TANAKA HIDEAKI (JP)
Application Number:
PCT/JP2013/080037
Publication Date:
May 15, 2014
Filing Date:
November 06, 2013
Export Citation:
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Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C08G65/28; C08G18/10; C08G18/48; C08G65/336
Domestic Patent References:
WO2009093599A12009-07-30
WO2013157486A12013-10-24
Foreign References:
JPH03195727A1991-08-27
JPH1036500A1998-02-10
JP2006063335A2006-03-09
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
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