COMPOSITION OF PAPERS AND CARDBOARD

This composition is used in the manufacture of papers and cardboards for writing, printing and packaging purposes, which feature outstanding dry and wet strength characteristics, high impregnation rates and improved whiteness. The composition includes cellulose from coniferous and deciduous wood, ro...

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Bibliographic Details
Main Authors VALCHEV, VLADIMIR I, BENCHEVA, SIJKA P, MATEVA, ROZA P, MOMCHEVA, RENI V, IVANOVA, NADEZHDA M
Format Patent
LanguageEnglish
Published 16.03.1992
Edition5
Subjects
IMPREGNATING OR COATING OF PAPER
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
TEXTILES
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Summary:This composition is used in the manufacture of papers and cardboards for writing, printing and packaging purposes, which feature outstanding dry and wet strength characteristics, high impregnation rates and improved whiteness. The composition includes cellulose from coniferous and deciduous wood, rosin glue and polyesters of phthalic and maleic glycerol monochlorohydrins, obtained by ionic co-polymerisation, with component ratios, in percent with respect to the perfectly dry fibrous matter, as follows: rosin glue 0.25-2.00, polyesters 0.1-2.0.
Bibliography:Application Number: BG19900090957