Process of warp sizing which uses a low molecular weight polyest

Details Process of warp sizing which uses a low molecular weight polyest Process of warp sizing which uses a low molecular weight polyest

1978-01-20

1979-03-20

Lusignan, Michael R.

Coating processes

Removable protective coating applied

Organic base

260 292E, 428290, 428394, 428395, 428483, 427390R, B05D 302

Patent

active

041454618

ABSTRACT:
A water dispersion comprising i) up to about 50% by weight of a water-dispersible low molecular weight polyester having a number average molecular weight in the range of about 850-2500 and preferably 1100-1800 and an acid value in the range of about 40-85 milligrams of KOH/gram of said polyester (millig/g) and preferably in the range of about 45-65 millig/g, which comprises: (1) a non-linear polyester backbone having an acid value in the range of about 5-15 millig/g and preferably about 8-12 millig/g comprising the reaction product of an aliphatic polyol, an aromatic dicarboxylic acid, and a monocarboxylic acid and (2) pendant moieties of a polycarboxylic acid having at least one free carboxylic acid group and at least one ester linkage to said backbone, ii) about 0.5% to 4% by weight, as based upon said polyester, of a chelated titanate, and iii) a fugitive base, is disclosed to provide a useful warp sizing composition for synthetic yarn fibers.

REFERENCES:
patent: 2334107 (1943-11-01), Light et al.
patent: 2378230 (1945-01-01), Little
patent: 3734874 (1973-05-01), Kibler et al.
patent: 3779993 (1973-12-01), Kibler et al.
patent: 3853820 (1974-12-01), Vachon
patent: 4016330 (1977-04-01), Laganis
patent: 4035531 (1977-07-01), Lark
patent: 4066593 (1978-01-01), Czajka et al.

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