Process for preparing poly(organophosphazenes) from soluble or g

Details Process for preparing poly(organophosphazenes) from soluble or g Process for preparing poly(organophosphazenes) from soluble or g

1978-11-03

1980-10-07

Briggs, Sr., Wilbert J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528228, 528243, 528246, 528266, 528361, 528362, 528363, 528374, 528378, 528380, 528391, 528392, 528399, C08G 7902, C08G 7300

Patent

active

042269725

ABSTRACT:
Poly(organophosphazenes) containing repeating units of the structure: ##STR1## wherein X and X' represent organic substituents which may be the same or different and n is from 20 to 50,000, are prepared by a process which involves reacting a poly(dichlorophosphazene) having the formula --(NPCl.sub.2).sub.n --, in which n is from 20 to 50,000, with an active hydrogen-containing compound in the presence of a bicyclic amidine represented by the structure: ##STR2## in which m is an integer of from 1 to 10. A unique aspect of the process of the invention is that it can be utilized to prepare such poly(organophosphazenes) utilizing either soluble or gelled (insoluble) poly(dichlorophosphazenes) as starting materials.

REFERENCES:
patent: 3893980 (1975-07-01), Allcock et al.

Affiliated with

Also associated with

Rating

Process for preparing poly(organophosphazenes) from soluble or g does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing poly(organophosphazenes) from soluble or g, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing poly(organophosphazenes) from soluble or g will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-619437