Method for treatment of fibrous materials
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 20, 1989
Grant Date -
N/A
app pub date -
Feb 23, 1988
filing date -
Mar 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fabrous material is impregnated with a treating agent comprising (1) a tetrakishydroxymethyl phosphonium compound or an ammonium condensate of a tetrakishydroxymethyl phosphonium compound, (2) methylolmelamine and (3) urea, thiourea or a guamidine salt, and the fabric is heated with high-pressure steam or subjected to a microwave heat treatment in the pressure of water vapor. A high and durable flame retardancy can be imparted to the fibrous material by this treatment. Especially good results are obtained when a fibrous material composed of a mixture of a polyester fiber and a cellulose fiber is treated according to this method.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully