Method for treatment of fibrous materials

Details Method for treatment of fibrous materials Method for treatment of fibrous materials

1988-02-23

1989-06-20

Bell, Janyce

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427377, 4273933, 427394, 427396, B05D 302

Patent

active

048408174

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.

REFERENCES:
patent: 3310419 (1967-03-01), Wagner
patent: 3666544 (1972-05-01), Kuechler
patent: 3775155 (1973-11-01), Eggenweiler et al.
patent: 3859124 (1975-01-01), Thompson
patent: 4076540 (1978-02-01), Stossel
patent: 4154878 (1979-05-01), Baitinger et al.
patent: 4168347 (1979-09-01), Spicuzza et al.

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