Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1982-12-30
1985-02-12
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524140, 524141, 524398, 524417, 524605, 523100, C08K 332, C08K 505, C08K 511
Patent
active
044992262
ABSTRACT:
A polyester which when made into an article such as films, containers, bottles and the like has a very high clarity, a low haze value, and a neutral hue. In the preparation of the resin, an antimony catalyst is utilized along with small amounts of a bluing agent such as a cobalt compound and a phosphate compound with the phosphate compound generally being slightly in excess of an equivalent amount of the cobalt compound. The polyester is made from dicarboxylic acids and preferably aromatic acids such as terephthalic acid reacted with polyhydric alcohols.
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Kamatani et al., "Effect of Phosphoric Acid on the Polycondensation of Bis(2--hydroxyethyl) Terephthalate Catalyzed by Sb(III) Compounds", Polymer Journal, vol. 12, No. 2, pp. 125-130, (1980).
Unitika Co., Plasdoc 31808 V/17, Derwent Publications, 4/1/74.
Callander Douglas D.
Massey Fred L.
Bleutge John C.
Rockhill Alvin T.
Sellers II Robert E. L.
The Goodyear Tire & Rubber Company
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