Process for pre-resinating cellulose fibers for cellulose compos

Details Process for pre-resinating cellulose fibers for cellulose compos Process for pre-resinating cellulose fibers for cellulose compos

1985-05-24

1987-03-03

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 624, 156242, 156283, 264121, 428288, 428290, B32B 2302, B32B 3124

Patent

active

046473246

ABSTRACT:
An improved method of molding articles from air-laid webs wherein resin is deposited in a dry process onto cellulose fibers prior to air-laying. Cellulose material and a resin-containing airstream are simultaneously fed into a comminuting means such as a hammer mill. The cellulose particles thereby produced have a coating which adheres to the surface of the cellulose particles. The cellulose particles retain substantially all of the dry resin coating when pneumatically conveyed and air-laid into a web. The fiber web produced with the resin-coated particles is suitable for use in a conventional molding process whereby the web is molded under sufficient heat and pressure into a molded article having a uniform resin distribution resulting in improved strength and improved structural integrity.

REFERENCES:
patent: 3718536 (1973-02-01), Downs et al.
patent: 3741863 (1973-06-01), Brooks
patent: 4230585 (1980-10-01), Bird et al.
patent: 4302488 (1981-11-01), Lowi, Jr.
patent: 4379194 (1983-04-01), Clarke et al.
patent: 4404250 (1983-09-01), Clarke
patent: 4418031 (1983-11-01), Doerer et al.
patent: 4439477 (1984-03-01), Kiss

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