Title:
【発明の名称】難燃性ポリウレタンエラストマーの製造方法
Document Type and Number:
Japanese Patent JP2812891
Kind Code:
B2
Abstract:
Graft polymer dispersions in polyoxyalkylene polyether polyols are employed together with flame retardant compounds to prepare flame retardant polyurethane foams. The polymer dispersions employ less than 0.1 mole of induced unsaturation per mole of polyol mixture. Processes for the preparation of these polymer dispersions employ fumarate derived polyetherester polyols or polyetherester polyols prepared by reacting a polyoxyalkylene polyether polyol with a compound selected from the group consisting of maleic acid maleic anhydride and fumaric acid and an alkylene oxide in the presence of salts and oxides of divalent metals. The polymer dispersions are prepared in the presence of a reaction moderator and employ 50 weight percent or more of acrylonitrile.
Inventors:
Gerhard, Gustav, Lamblob
Duane, Alan, Hyman
Oscar, M, Grace
Duane, Alan, Hyman
Oscar, M, Grace
Application Number:
JP8713895A
Publication Date:
October 22, 1998
Filing Date:
April 12, 1995
Export Citation:
Assignee:
BASF CORP.
International Classes:
C08L75/04; C08F2/38; C08F283/06; C08F283/12; C08F290/00; C08F291/08; C08F299/02; C08G18/63; C08G63/676; C08L75/00; (IPC1-7): C08G18/63; C08F290/00; C08L75/04
Domestic Patent References:
| JP5989317A |
Attorney, Agent or Firm:
Kazuo Sato (2 outside)