Process for chemical finishing of insoluble polymers

Details Process for chemical finishing of insoluble polymers Process for chemical finishing of insoluble polymers

1997-02-18

1998-03-31

Lankford, Jr., Leon B.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

435 74, 435101, 435134, 435135, 536 58, 536107, 536115, 536 63, 8120, C12P 1900, C12P 1904, C12P 764, D06M 13184

Patent

active

057337500

ABSTRACT:
Disclosed is a process for chemical finishing of fabrics, fibers or yarns wherein insoluble cellulosic polymers are reacted with carboxylic acids or esters thereof in the presence of a lipase. The cellulosic polymer may be cotton, viscose, rayon, lyocell, flax, linen, ramie, and all blends thereof; and blends thereof with polyesters, wool, polyamides, acrylics and polyacrylics. The lipase may be a microbial lipase, including a lipase obtained from yeast, e.g. Candida lipase, a bacterial lipase, e.g. Pseudomonas lipase, or a fungal lipase, e.g. Humicola or Rhizomucor lipases. Chemically modified lipases obtained by coupling polyethylene glycol to amino acid residues of the lipase may also be used.

REFERENCES:
patent: 3909360 (1975-09-01), Horiuchi
patent: 4614718 (1986-09-01), Seino et al.
patent: 5042986 (1991-08-01), Kitchens et al.
patent: 5191071 (1993-03-01), Kirk et al.

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