Catalysts and processes for formaldehyde-free durable press fini

Details Catalysts and processes for formaldehyde-free durable press fini Catalysts and processes for formaldehyde-free durable press fini

1990-05-03

1990-12-04

Lieberman, Paul

Compositions

Durable finishes for textile materials, or processes of...

Oil or water repellent or soil resistant or retardant

8120, 81271, 81161, D06M 1500

Patent

active

049752090

ABSTRACT:
Catalysts for the rapid esterification and crosslinking of fibrous cellulose in textile form by polycarboxylic acids at elevated temperatures are disclosed. The catalysts are acidic or weakly basic salts selected from the alkali metal dihydrogen phosphates and alkali metal salts of phosphorous, hypophosphorous, and polyphosphoric acids. Suitable polycarboxylic acids include saturated, unsaturated and aromatic acids, as well as alpha-hydroxy acids. The textiles so treated exhibit high levels of wrinkle resistance and smooth drying properties durable to repeated laundering in alkaline detergents, and do not contain or release formaldehyde.

REFERENCES:
patent: 3526048 (1970-09-01), Rowland et al.
patent: 3575690 (1971-04-01), Tesoro

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