Descriptions for D21H and notes/indexes are displayed on this screen.
| D21H
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PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21DIMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21GPAPER NOT OTHERWISE PROVIDED FOR[5]
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Note(s)
This subclass covers also pulp compositions for the preparation of fibreboard or other fibrous articles by wet processes [5,8]In this subclass, the following terms are used with the meaning indicated:"pulp" means a dispersion comprising paper-making fibres and optional additives, which is to be processed, and covers the term "stock"; it also means dry paper-making fibres which are to be made into paper by either wet or dry processes;—"paper" means paper, cardboard or wet-laid non-woven fabrics. If a pulp composition or a paper, or a constituent thereof, is characterised by more than one feature provided for in this subclass, for example, by both the fibrous material and a coating or by both a colorant and a water-repelling agent, classification is made in all places providing for these features
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Subclass indexes
PULP OR PAPER | comprising cellulose, lignocellulose or non-cellulose fibres or web-forming material | 11/00, 13/00 | comprising fibres or web-forming material not characterised by their chemical constitution | 15/00 | Processes or apparatus for adding material | 23/00 | NON-FIBROUS MATERIAL ADDED TO THE PULP, PAPER-IMPREGNATING MATERIAL | 17/00, 21/00 | COATED PAPER; COATING MATERIAL | 19/00 | OTHER AFTER-TREATMENTS OF PAPER | 25/00 | SPECIAL PAPER | 27/00 |
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