Water absorbent polymer-coated article and method of producing s

Details Water absorbent polymer-coated article and method of producing s Water absorbent polymer-coated article and method of producing s

1989-12-13

1991-06-25

Schofer, Joseph L.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

4273899, 428265, 428267, 428280, 428288, 428290, 428274, 4283111, 4283115, 4283117, 428406, 428507, 428511, B32B 700

Patent

active

050265962

ABSTRACT:
An aqueouse composition of an acrylic polymer to which a water soluble peroxide radical initiator has been added, said initiator being adapted to decompose at a temperature of from about 40.degree. C. to about 180.degree. C. and act on the polymer to crosslink the same. Using the aqueous composition, a water absorbent crosslinked polymer and a water absorbent polymer-coated article can be produced through simplified processes. The water absorbent crosslinked polymer exhibits excellent water absorbing and swelling properties so that it can be advantageously utilized for the production of wet absorbent articles such as disposable diaper, sanitary napkin or the like. The water absorbent polymer-coated article is excellent in water absorption properties and can be used safely for the purposes as mentioned above.

REFERENCES:
patent: 4066584 (1978-01-01), Allen et al.
patent: 4132695 (1979-01-01), Burkholder
patent: 4497930 (1985-02-01), Yamasaki
patent: 4524186 (1985-06-01), Nagase
patent: 4587308 (1986-05-01), Makita et al.

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