Moldable pulp material and method of manufacturing molded pulp p

Details Moldable pulp material and method of manufacturing molded pulp p Moldable pulp material and method of manufacturing molded pulp p

1996-07-02

1998-07-28

Chin, Peter

Paper making and fiber liberation

Processes and products

Article forming processes

162224, 162226, 521 55, D21J 108

Patent

active

057858179

ABSTRACT:
A moldable pulp material, which contains a main constituent of pulp comprising strips of paper having a size of millimeters and a fibrous component defibrated from waste paper, a starch binder in which a portion of the hydroxyl group in molecules of starch is modified, and thermally expandable hollow particles, is mixed with water which is effective to gelatinize the starch binder. The moldable pulp material is filled in a mold assembly and compressed in the mold assembly. The compressed moldable pulp material is then heated to at least a gelatinization temperature at which the starch binder is gelatinized, for thereby gelatinizing the starch binder to produce a molded pulp product for use as a shock absorbing material.

REFERENCES:
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patent: 4929308 (1990-05-01), Gerault et al.
patent: 5242637 (1993-09-01), Inoue et al.
patent: 5360825 (1994-11-01), Noguchi et al.
patent: 5498478 (1996-03-01), Hansen et al.
patent: 5578119 (1996-11-01), Short et al.

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