Enhanced wet strength filter mats to separate particulates from

Details Enhanced wet strength filter mats to separate particulates from Enhanced wet strength filter mats to separate particulates from

1980-01-10

1981-10-06

Chin, Peter

Paper making and fiber liberation

Processes and products

Plural fiber containing

55527, 55528, 55DIG13, 162146, 162164R, 162166, 162168R, 162168N, 162169, 210504, 210505, 210508, 210509, D21H 518

Patent

active

042933781

ABSTRACT:
A glass fiber filter mat possessing excellent wet strength which is in the form of a non-woven matrix of glass micro-fibers including polymer micro-bits derived, for example, from a non-brittle expanded, thermoplastic styrene polymer or a flexible foamed polyurethane, the micro-bits being substantially free of intact cells. Also included in the filter mat is a cobeat or intimate blend of cellulose fibers and the polymer micro-bits, which may additionally contain polyester fibers, as well as a combination of binders, viz., polyvinyl alcohol and a melamineformaldehyde resin.

REFERENCES:
patent: 3228825 (1966-01-01), Waggoner
patent: 3274103 (1966-09-01), Adams
patent: 3573158 (1971-03-01), Pall et al.
patent: 3622445 (1971-11-01), Heidweiller
patent: 3749638 (1973-07-01), Renaud et al.

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