INHIBITED WATER-SOLUBLE CELLULOSE ETHER AND METHOD FOR ITS PREPARING
FIELD: chemical technology. ^ SUBSTANCE: invention relates to a method for preparing inhibited water-soluble cellulose ether involving the following steps: (a) treatment of moist cellulose ether with dialdehyde solution, and (b) drying and grinding cellulose ether. Saline aqueous solution representi...
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| creator | KHEL' FRANK MJULLER FOL'KKHARDT DANNKHORN VOL'FGANG PANNEK JORN-BERND SHLEZIGER KHARTVIG |
| description | FIELD: chemical technology. ^ SUBSTANCE: invention relates to a method for preparing inhibited water-soluble cellulose ether involving the following steps: (a) treatment of moist cellulose ether with dialdehyde solution, and (b) drying and grinding cellulose ether. Saline aqueous solution representing a solution is added to cellulose ether simultaneously or together with dialdehyde solution wherein aqueous solution consists of at least two salts and wherein one salt represents weak acid with pK value from 5.5 to 8.5, and another salt represents salt of this weak acid with pK value from 5.5 to 8.5 that provides pH value of cellulose ether from 6.0 to 8.0 under homogenous condition. Except for, invention relates to inhibited cellulose water-soluble ether that is used widely as glues, thickening agents or anticoagulants. ^ EFFECT: improved preparing method. ^ 11 cl, 1 tbl, 19 ex |
| format | Patent |
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Saline aqueous solution representing a solution is added to cellulose ether simultaneously or together with dialdehyde solution wherein aqueous solution consists of at least two salts and wherein one salt represents weak acid with pK value from 5.5 to 8.5, and another salt represents salt of this weak acid with pK value from 5.5 to 8.5 that provides pH value of cellulose ether from 6.0 to 8.0 under homogenous condition. 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| subjects | ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES THEREOF DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES POLYSACCHARIDES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES |
| title | INHIBITED WATER-SOLUBLE CELLULOSE ETHER AND METHOD FOR ITS PREPARING |
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