Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1994-05-23
1996-08-27
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528272, 528296, 528301, 528308, 5283086, 525437, 525438, 525439, 525444, 525445, C08G 7902
Patent
active
055502075
ABSTRACT:
A linear copolyester is prepared by polycondensation of an aromatic bicarboxylic acid with an alkylene glycol and with a carboxyphosphinic acid or anhydride which produces monomeric units having the formula: ##STR1## wherein R.sub.1 is an alkylene or phenyl radical and R.sub.2 is an alkyl or phenyl radical. This copolyester can be used as a flame-retardant additive for organic polymers.
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Chemical Abstracts, 115, No. 6, Abstr. No. 51819z (Jan. 6, 1992).
Landoni Gianluigi
Neri Carlo
Acquah Samuel A.
Enichem Synthesis S.p.A.
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