Abstract: A composition and method for providing a non-formaldehyde durable press finish to cellulosic fabrics by employing phosphonoalkylpolycarboxylic acids are disclosed. The phosphonoalkylpolycarboxylic acid is optimally used in combination with another polycarboxylic acid, such as polyacrylic acid, and/or, for cost effectiveness, a low-cost polycarboxylic acid such as citric acid. The catalyst for the curing reaction is optimally a phosphorus-containing acid or alkali metal salt thereof, such as a mixture of sodium monophosphate and sodium hypophosphite.
Type:
Grant
Filed:
May 24, 1994
Date of Patent:
March 5, 1996
Assignee:
PPG Indutstries, Inc.
Inventors:
Robert H. Tang, William A. Williams, Jr.