Catalyst system for a polyethylene terephthalate polycondensatio

Details Catalyst system for a polyethylene terephthalate polycondensatio Catalyst system for a polyethylene terephthalate polycondensatio

1982-02-04

1982-10-26

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528285, 2604295, C08G 6304, C08G 6334

Patent

active

043562990

ABSTRACT:
A polyethylene terephthalate polycondensation catalyst system comprises from about 2 parts to about 18 parts of catalyst metal in the form of an alkyl titanate and from about 40 parts to about 300 parts of catalyst metal in the form of an antimony compound, each of said metals being per million parts of polymer product.

REFERENCES:
patent: 3441540 (1969-04-01), Muller et al.
patent: 3453241 (1969-07-01), Jeurissen et al.
patent: 3965071 (1976-06-01), McClelland
patent: 4010145 (1977-03-01), Russin et al.

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