ADDITIVE FOR PAPER MAKING
PROBLEM TO BE SOLVED: To obtain an additive for paper making enabling the improvement of filterability and yield, and the enhancement of the durability of paper produced by using it in a paper making process. SOLUTION: This additive for making paper is composed of (A) a cationic polymer having amidi...
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| creator | KUBO MICHIYO MURANO MASAYUKI |
| description | PROBLEM TO BE SOLVED: To obtain an additive for paper making enabling the improvement of filterability and yield, and the enhancement of the durability of paper produced by using it in a paper making process. SOLUTION: This additive for making paper is composed of (A) a cationic polymer having amidine units which are obtained by the hydrolysis of a polymer having N-vinylcarboxylic acid amide or N-isopropenylcarboxylic acid amide units, and acrylonitrile or methacrylonitrile units, and by the successive amidination of the hydrolysate, and (B) a cationic polymer having vinylamine units or isopropenylamine units which are obtained by the hydrolysis of a polymer having N-vinylcarboxylic amide units or N-isopropenylcarboxylic acid amide units, at a ratio of (A):(B)=(10:90) to (90:10) by weight. |
| format | Patent |
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SOLUTION: This additive for making paper is composed of (A) a cationic polymer having amidine units which are obtained by the hydrolysis of a polymer having N-vinylcarboxylic acid amide or N-isopropenylcarboxylic acid amide units, and acrylonitrile or methacrylonitrile units, and by the successive amidination of the hydrolysate, and (B) a cationic polymer having vinylamine units or isopropenylamine units which are obtained by the hydrolysis of a polymer having N-vinylcarboxylic amide units or N-isopropenylcarboxylic acid amide units, at a ratio of (A):(B)=(10:90) to (90:10) by weight.</description><edition>6</edition><language>eng</language><subject>IMPREGNATING OR COATING OF PAPER ; METHODS OF PRODUCING PAPER THEREON ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PAPER-MAKING MACHINES ; 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</subject><creationdate>1998</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19981006&DB=EPODOC&CC=JP&NR=H10266092A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19981006&DB=EPODOC&CC=JP&NR=H10266092A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUBO MICHIYO</creatorcontrib><creatorcontrib>MURANO MASAYUKI</creatorcontrib><title>ADDITIVE FOR PAPER MAKING</title><description>PROBLEM TO BE SOLVED: To obtain an additive for paper making enabling the improvement of filterability and yield, and the enhancement of the durability of paper produced by using it in a paper making process. 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SOLUTION: This additive for making paper is composed of (A) a cationic polymer having amidine units which are obtained by the hydrolysis of a polymer having N-vinylcarboxylic acid amide or N-isopropenylcarboxylic acid amide units, and acrylonitrile or methacrylonitrile units, and by the successive amidination of the hydrolysate, and (B) a cationic polymer having vinylamine units or isopropenylamine units which are obtained by the hydrolysis of a polymer having N-vinylcarboxylic amide units or N-isopropenylcarboxylic acid amide units, at a ratio of (A):(B)=(10:90) to (90:10) by weight.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | IMPREGNATING OR COATING OF PAPER METHODS OF PRODUCING PAPER THEREON PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PAPER-MAKING MACHINES 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 |
| title | ADDITIVE FOR PAPER MAKING |
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