Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1987-04-23
1988-05-17
Phynes, Lucille M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
524 89, 524602, 528274, 5283082, 546 76, C08G 6944, C08G 7316
Patent
active
047451742
ABSTRACT:
This invention relates to novel fiber forming polyester compositions that exhibit improved whiteness by incorporating derivatives of dibenzoisoquinolinediones of the formula ##STR1## wherein R is hydrogen, cycloalkyl, allyl, alkyl, aralkyl, alkoxyalkyl or cycloalkylalkylene;
REFERENCES:
patent: 2756234 (1956-07-01), Elslager
patent: 3324131 (1967-06-01), Genta
patent: 3678053 (1972-07-01), Boffa et al.
patent: 3980609 (1976-09-01), Neeff et al.
Hilbert Samuel D.
Pruett Wayne P.
Thompson John G.
Weaver Max A.
Eastman Kodak Company
Heath, Jr. William P.
Phynes Lucille M.
Stevens John F.
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