Prepn of low molecular weight polyacrylamide
The present invention discloses preparation process of low molecular weight polyacrylamide, and the preparation process is one water solution polymerization process with ethanol as heat transferring solvent, sodium formate as chain transferring agent, ammonium persulfate as initiator, and EDTA disod...
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| creator | XIANZENG,WANG ZHAO |
| description | The present invention discloses preparation process of low molecular weight polyacrylamide, and the preparation process is one water solution polymerization process with ethanol as heat transferring solvent, sodium formate as chain transferring agent, ammonium persulfate as initiator, and EDTA disodium salt as stabilizer. Through continuously dropping of acrylamide solution and initiator solution, reflux polymerization at 80-90 deg.c and regulating the consumption of sodium formate and initiator, polyacrylamide of molecular weight (1.0-2.6)*10 is synthesized. Thus synthesized low molecular weight polyacrylamide has excellent water solubility, and is suitable for use as polymer emulsifier, dispersant, adhesive, etc. |
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Through continuously dropping of acrylamide solution and initiator solution, reflux polymerization at 80-90 deg.c and regulating the consumption of sodium formate and initiator, polyacrylamide of molecular weight (1.0-2.6)*10 is synthesized. Thus synthesized low molecular weight polyacrylamide has excellent water solubility, and is suitable for use as polymer emulsifier, dispersant, adhesive, etc.</description><language>eng</language><subject>ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ; ADHESIVES ; CHEMICAL PAINT OR INK REMOVERS ; CHEMISTRY ; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS ; COMPOSITIONS BASED THEREON ; CORRECTING FLUIDS ; DYES ; FILLING PASTES ; IMPREGNATING OR COATING OF PAPER ; INKS ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAINTS ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PASTES OR SOLIDS FOR COLOURING OR PRINTING ; POLISHES ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; TEXTILES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G ; USE OF MATERIALS AS ADHESIVES ; USE OF MATERIALS THEREFOR ; WOODSTAINS</subject><creationdate>2007</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=20070103&DB=EPODOC&CC=CN&NR=1887923A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070103&DB=EPODOC&CC=CN&NR=1887923A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>XIANZENG,WANG ZHAO</creatorcontrib><title>Prepn of low molecular weight polyacrylamide</title><description>The present invention discloses preparation process of low molecular weight polyacrylamide, and the preparation process is one water solution polymerization process with ethanol as heat transferring solvent, sodium formate as chain transferring agent, ammonium persulfate as initiator, and EDTA disodium salt as stabilizer. Through continuously dropping of acrylamide solution and initiator solution, reflux polymerization at 80-90 deg.c and regulating the consumption of sodium formate and initiator, polyacrylamide of molecular weight (1.0-2.6)*10 is synthesized. Thus synthesized low molecular weight polyacrylamide has excellent water solubility, and is suitable for use as polymer emulsifier, dispersant, adhesive, etc.</description><subject>ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE</subject><subject>ADHESIVES</subject><subject>CHEMICAL PAINT OR INK REMOVERS</subject><subject>CHEMISTRY</subject><subject>COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>CORRECTING FLUIDS</subject><subject>DYES</subject><subject>FILLING PASTES</subject><subject>IMPREGNATING OR COATING OF PAPER</subject><subject>INKS</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PAINTS</subject><subject>PAPER NOT OTHERWISE PROVIDED FOR</subject><subject>PAPER-MAKING</subject><subject>PASTES OR SOLIDS FOR COLOURING OR PRINTING</subject><subject>POLISHES</subject><subject>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</subject><subject>PRODUCTION OF CELLULOSE</subject><subject>PULP COMPOSITIONS</subject><subject>TEXTILES</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</subject><subject>USE OF MATERIALS AS ADHESIVES</subject><subject>USE OF MATERIALS THEREFOR</subject><subject>WOODSTAINS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAJKEotyFPIT1PIyS9XyM3PSU0uzUksUihPzUzPKFEoyM-pTEwuqsxJzM1MSeVhYE1LzClO5YXS3Azybq4hzh66qQX58anFBYnJqXmpJfHOfoYWFuaWRsaOxoRVAAAJkSlS</recordid><startdate>20070103</startdate><enddate>20070103</enddate><creator>XIANZENG,WANG ZHAO</creator><scope>EVB</scope></search><sort><creationdate>20070103</creationdate><title>Prepn of low molecular weight polyacrylamide</title><author>XIANZENG,WANG ZHAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN1887923A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE</topic><topic>ADHESIVES</topic><topic>CHEMICAL PAINT OR INK REMOVERS</topic><topic>CHEMISTRY</topic><topic>COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>CORRECTING FLUIDS</topic><topic>DYES</topic><topic>FILLING PASTES</topic><topic>IMPREGNATING OR COATING OF PAPER</topic><topic>INKS</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PAINTS</topic><topic>PAPER NOT OTHERWISE PROVIDED FOR</topic><topic>PAPER-MAKING</topic><topic>PASTES OR SOLIDS FOR COLOURING OR PRINTING</topic><topic>POLISHES</topic><topic>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</topic><topic>PRODUCTION OF CELLULOSE</topic><topic>PULP COMPOSITIONS</topic><topic>TEXTILES</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</topic><topic>USE OF MATERIALS AS ADHESIVES</topic><topic>USE OF MATERIALS THEREFOR</topic><topic>WOODSTAINS</topic><toplevel>online_resources</toplevel><creatorcontrib>XIANZENG,WANG ZHAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>XIANZENG,WANG ZHAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Prepn of low molecular weight polyacrylamide</title><date>2007-01-03</date><risdate>2007</risdate><abstract>The present invention discloses preparation process of low molecular weight polyacrylamide, and the preparation process is one water solution polymerization process with ethanol as heat transferring solvent, sodium formate as chain transferring agent, ammonium persulfate as initiator, and EDTA disodium salt as stabilizer. Through continuously dropping of acrylamide solution and initiator solution, reflux polymerization at 80-90 deg.c and regulating the consumption of sodium formate and initiator, polyacrylamide of molecular weight (1.0-2.6)*10 is synthesized. Thus synthesized low molecular weight polyacrylamide has excellent water solubility, and is suitable for use as polymer emulsifier, dispersant, adhesive, etc.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES IMPREGNATING OR COATING OF PAPER INKS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS |
| title | Prepn of low molecular weight polyacrylamide |
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