Patent classifications
D
TEXTILES; PAPER
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D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
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D21H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
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5/00
Special paper or cardboard not otherwise provided for
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D21H5/26
Special paper or cardboard manufactured by dry method; Apparatus or processes for forming webs by dry method from mainly short-fibre or particle material, e.g. paper pulp
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D21H5/2678
Manufacture of layered products (assembly of superposed sheets), comprising the consolidation of such a structure
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D21H5/2678

Cellulose and cellulose ester film
11525215 · 2022-12-13 · ·

A film is made from a wet laid product containing cellulose fibers and cellulose ester fibers and a plasticizer. The film can be made by heat pressing the wet laid sheet to form a film having a continuous phase of cellulose ester resin and a discontinuous phase of cellulose fibers.

CELLULOSE AND CELLULOSE ESTER FILM
20200063353 · 2020-02-27 · ·

A film is made from a wet laid product containing cellulose fibers and cellulose ester fibers and a plasticizer. The film can be made by heat pressing the wet laid sheet to form a film having a continuous phase of cellulose ester resin and a discontinuous phase of cellulose fibers.