Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1981-10-26
1982-11-16
Phynes, Lucille M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
523507, 523508, 524 89, 524 90, 524271, 524219, 524239, 524240, 525 35, 528127, 528290, 528295, C08G 6944
Patent
active
043595707
ABSTRACT:
Disclosed are colored polyester compositions containing copolymerized anthraquinone dyes as colorants, which compositions may be used, for example, for food packaging and to mold colored beverage bottles. The copolymerized dyes are thermally stable at the processing temperatures, and are colorfast and nonextractable. The useful dyes have the general formula: ##STR1## wherein either or both of rings A and B may contain in any position thereon one or two groups of the formula ##STR2## R and R.sup.3 each is hydrogen, lower alkyl or lower hydroxyalkyl; R.sup.1, R.sup.2, R.sup.4 and R.sup.5 each is hydrogen or 1-3 substituents such as lower alkyl, lower alkoxy, phenyl, Cl, Br, or the like; X is --S-- or --NH--; n is 1 or 2; m is 0, 1, or 2.
REFERENCES:
patent: 3372138 (1968-03-01), Bowman et al.
patent: 3424708 (1969-01-01), Bowman et al.
patent: 3668277 (1972-06-01), Riemhofer et al.
patent: 3927964 (1975-12-01), Botros
patent: 4191679 (1980-03-01), Okita et al.
Kunststoffhandbuch, vol. VIII, Polyester, 1973, Carl Hanser Verlag, Munchen, pp. 250-261.
Encyclopedia of Polymer Science and Technology, vol. 11, 1969, Interscience Publishers, N.Y., pp. 139-153.
Davis Thomas G.
Weaver Max A.
Eastman Kodak Company
Phynes Lucille M.
Reece III Daniel B.
Spurrell Donald W.
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