Phosphoric acid polyesters and a process for their preparation

Details Phosphoric acid polyesters and a process for their preparation Phosphoric acid polyesters and a process for their preparation

1994-01-25

1995-02-21

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528279, 528289, 528368, 528398, 528411, 528418, 528423, C08G 63692

Patent

active

053916980

ABSTRACT:
The invention relates to phosphoric acid polyesters according to the formulae ##STR1## in which R is .dbd.CH.sub.2, .dbd.C.sub.2 H.sub.4 or .dbd.C.sub.3 H.sub.6 and m is 1 to 10 and n is 1 to 6.
To prepare these phosphoric acid polyesters, the cyclic phosphoric acid ester 2,4,8,10-tetraoxa-3,9-dioxo-3,9-dihydroxy-phosphaspiro[5.5]-undecane is reacted with tris-hydroxyalkyl cyanurate or tris-hydroxyalkyl isocyanurate at temperatures of 120.degree. to 250.degree. C. in the presence of a catalyst for 2 to 12 hours, while mixing intensively.

REFERENCES:
patent: 4096114 (1978-06-01), Minagawa et al.
patent: 4154930 (1979-05-01), Halpern
Ratz, R., et al., J. Org. Chem. 28:1608-1612 (1963).

Affiliated with

Also associated with

Rating

Phosphoric acid polyesters and a process for their preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phosphoric acid polyesters and a process for their preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phosphoric acid polyesters and a process for their preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1931105