Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1977-10-12
1980-07-22
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528169, 528277, 528279, 528285, 528287, C08G 6318, C08G 6368
Patent
active
042140692
ABSTRACT:
Flame-resistant copolyesters are disclosed consisting or consisting essentially of from 85 to 99.5% of repeating units of the formula --CO--R--CO--O--R.sub.1 --O-- in which R is a divalent aromatic radical and R.sub.1 is a divalent aliphatic, cycloalkane radical or a mixture of two or several of these radicals; and least 0.5% of units of the formula: ##STR1## in which Me represents a metal such as Na, K, Ca or Zn, and Z represents a paraphenylene group or a divalent aliphatic grouping which contains from 1 to 18 carbon atoms, and may comprise heteroatoms, and is optionally branched, the branch being an aliphatic radical which may be halogenated, and comprises from 1 to 6 carbon atoms; and from 0 to 14.5% of units produced from a brominated compound of the formula: ##STR2## in which R.sub.5 is zero or represents a grouping: ##STR3## and A and A' represent either --CO--OX groups, where X=H or a lower alkyl group, or --X'OH groups, where X'=a--OCH.sub.2 --CH.sub.2 --.sub.n group, and n=1 to 10. These copolyesters may advantageously be used for producing textile threads, fibers and films.
REFERENCES:
patent: 3036044 (1962-05-01), Browne et al.
patent: 3052653 (1962-09-01), Iannicelli
patent: 3941752 (1976-03-01), Kleiner et al.
patent: 4033936 (1977-07-01), Bollert et al.
Couchoud Paul
Vaginay Yves
Lee Lester L.
Rhone-Poulenc-Textile
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