Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PREPARATION OF FLAME RETARDANT PHOSPHORUS-CONTAINING POLYMER
Document Type and Number:
Japanese Patent JPS54119600
Kind Code:
A
Abstract:

PURPOSE: To prepare a flame retardant phosphouus-containing polymer which can be directly added to the diacetate spinning stock solution, by reacting an excess amount of a ketone compound with a cyclic chlorophosphite, etc. while utilizing the excess amount of the ketone as a reaction solvent.

CONSTITUTION: (A) A cyclic chlorophosphite I (R1 is ethylene or propylene) is reacted with (B) a ketone compound (R2 and R3 are methyl or ethyl), (C) an organotriphosphite P(OR4)3 (R4 is 2W4C alkyl, phenyl, etc.) and (D) an active halogen compound R5-X (R5 is 1W10C aliphatic or aromatic compound group, etc.; X is halogen) using a part of (B) as the solvent, at -50 W 200°C. (E) An epoxy compound III (R6 and R7 are H, 1W6C alkyl, etc.) is reacted with the above reaction mixture to give the desired polymer comprising mainly a polyphosphonate having the recurrent unit IV (n in 1 W 1,000).

EFFECT: Excellent is hydrolytic resistance.


Inventors:
Nakahama, Tetsuro
Mimura, Koji
Aoki, Kunihiro
Application Number:
JP1978000027101
Publication Date:
September 17, 1979
Filing Date:
March 09, 1978
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NITTO CHEM IND CO LTD
MITSUBISHI RAYON CO LTD
International Classes:
D06M15/673; C08G79/00; C08G79/02; C08G79/04; D06M13/02; D06M13/244; D06M13/282; D06M13/288; (IPC1-7): C08G79/02
Domestic Patent References:
JPS4731720A
JPS4814186A



 
Previous Patent: JPS54119599

Next Patent: JPS54119601