Sulfonate-containing polyesters dyeable with basic dyes

Details Sulfonate-containing polyesters dyeable with basic dyes Sulfonate-containing polyesters dyeable with basic dyes

1995-05-18

1996-09-24

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528272, 528275, 5283086, 524413, 524783, 524779, C08G 6382

Patent

active

055592058

ABSTRACT:
A process is provided for preparing basic-dyeable polyester polymer, and shaped articles therefrom, such as fibers, films and bottles, involving using the metal sulfonate salt of a glycollate of isophthalic acid as a polymerization catalyst in making ethylene terephthalate polyester copolymers. This reduces or even avoids the need to add a conventional polymerization catalyst, such as antimony trioxide, especially when making polyesters delustered with titanium dioxide.

REFERENCES:
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patent: 4113704 (1978-09-01), MacLean et al.
patent: 4146729 (1979-03-01), Goodley et al.
patent: 4945151 (1990-07-01), Goodley et al.
patent: 5053482 (1991-10-01), Tietz
patent: 5171309 (1992-12-01), Gallagher et al.

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