FOERFARANDE FOER FRAMSTAELLNING AV HAOLPARTIKELLATEX
The present invention relates to a process for producing hollow polymer latices. A first batch of an organic phase is introduced into an aqueous phase. The first batch of the organic phase comprises a monomer, which is essentially insoluble in the aqueous phase, and an inert, nonpolymerizable hydroc...
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| creator | CHONDE, YOHANNES MCDONALD, CHARLES J MACWILLIAMS, DALTON C COHRS, WILLIAM E |
| description | The present invention relates to a process for producing hollow polymer latices. A first batch of an organic phase is introduced into an aqueous phase. The first batch of the organic phase comprises a monomer, which is essentially insoluble in the aqueous phase, and an inert, nonpolymerizable hydrocarbon. The polymer which is formed in connection with the polymerization of the monomer is essentially insoluble in the hydrocarbon, the hydrocarbon is essentially insoluble in the aqueous phase and the monomer is miscible with the hydrocarbon. The monomer is polymerized in order to form a polymer of low molecular weight, which phase-separates from the organic phase and is concentrated on the surface of the organic phase with the formation of a polymer phase of low molecular weight. A second batch of the organic phase is then introduced into the aqueous phase, when the polymer of low molecular weight reaches a conversion ratio of monomer to polymer which is equal to or less than 80%, with the second batch of the organic phase comprising a crosslinking monomer and with the crosslinking monomer being absorbed in the polymer phase of low molecular weight. Further polymerization produces a hollow polymer latex particle. |
| format | Patent |
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A first batch of an organic phase is introduced into an aqueous phase. The first batch of the organic phase comprises a monomer, which is essentially insoluble in the aqueous phase, and an inert, nonpolymerizable hydrocarbon. The polymer which is formed in connection with the polymerization of the monomer is essentially insoluble in the hydrocarbon, the hydrocarbon is essentially insoluble in the aqueous phase and the monomer is miscible with the hydrocarbon. The monomer is polymerized in order to form a polymer of low molecular weight, which phase-separates from the organic phase and is concentrated on the surface of the organic phase with the formation of a polymer phase of low molecular weight. A second batch of the organic phase is then introduced into the aqueous phase, when the polymer of low molecular weight reaches a conversion ratio of monomer to polymer which is equal to or less than 80%, with the second batch of the organic phase comprising a crosslinking monomer and with the crosslinking monomer being absorbed in the polymer phase of low molecular weight. Further polymerization produces a hollow polymer latex particle.</description><edition>5</edition><language>fin</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>1992</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=19920417&DB=EPODOC&CC=FI&NR=905091A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19920417&DB=EPODOC&CC=FI&NR=905091A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHONDE, YOHANNES</creatorcontrib><creatorcontrib>MCDONALD, CHARLES J</creatorcontrib><creatorcontrib>MACWILLIAMS, DALTON C</creatorcontrib><creatorcontrib>COHRS, WILLIAM E</creatorcontrib><title>FOERFARANDE FOER FRAMSTAELLNING AV HAOLPARTIKELLATEX</title><description>The present invention relates to a process for producing hollow polymer latices. A first batch of an organic phase is introduced into an aqueous phase. The first batch of the organic phase comprises a monomer, which is essentially insoluble in the aqueous phase, and an inert, nonpolymerizable hydrocarbon. The polymer which is formed in connection with the polymerization of the monomer is essentially insoluble in the hydrocarbon, the hydrocarbon is essentially insoluble in the aqueous phase and the monomer is miscible with the hydrocarbon. The monomer is polymerized in order to form a polymer of low molecular weight, which phase-separates from the organic phase and is concentrated on the surface of the organic phase with the formation of a polymer phase of low molecular weight. A second batch of the organic phase is then introduced into the aqueous phase, when the polymer of low molecular weight reaches a conversion ratio of monomer to polymer which is equal to or less than 80%, with the second batch of the organic phase comprising a crosslinking monomer and with the crosslinking monomer being absorbed in the polymer phase of low molecular weight. Further polymerization produces a hollow polymer latex particle.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1992</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDBx83cNcnMMcvRzcVUAsRXcghx9g0McXX18_Dz93BUcwxQ8HP19AhyDQjy9gYKOIa4RPAysaYk5xam8UJqbQc7NNcTZQze1ID8-tbggMTk1L7Uk3s3T0sDUwNLQ0ZigAgD2uCZW</recordid><startdate>19920417</startdate><enddate>19920417</enddate><creator>CHONDE, YOHANNES</creator><creator>MCDONALD, CHARLES J</creator><creator>MACWILLIAMS, DALTON C</creator><creator>COHRS, WILLIAM E</creator><scope>EVB</scope></search><sort><creationdate>19920417</creationdate><title>FOERFARANDE FOER FRAMSTAELLNING AV HAOLPARTIKELLATEX</title><author>CHONDE, YOHANNES ; MCDONALD, CHARLES J ; MACWILLIAMS, DALTON C ; COHRS, WILLIAM E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_FI905091A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>fin</language><creationdate>1992</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>CHONDE, YOHANNES</creatorcontrib><creatorcontrib>MCDONALD, CHARLES J</creatorcontrib><creatorcontrib>MACWILLIAMS, DALTON C</creatorcontrib><creatorcontrib>COHRS, WILLIAM E</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHONDE, YOHANNES</au><au>MCDONALD, CHARLES J</au><au>MACWILLIAMS, DALTON C</au><au>COHRS, WILLIAM E</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>FOERFARANDE FOER FRAMSTAELLNING AV HAOLPARTIKELLATEX</title><date>1992-04-17</date><risdate>1992</risdate><abstract>The present invention relates to a process for producing hollow polymer latices. A first batch of an organic phase is introduced into an aqueous phase. The first batch of the organic phase comprises a monomer, which is essentially insoluble in the aqueous phase, and an inert, nonpolymerizable hydrocarbon. The polymer which is formed in connection with the polymerization of the monomer is essentially insoluble in the hydrocarbon, the hydrocarbon is essentially insoluble in the aqueous phase and the monomer is miscible with the hydrocarbon. The monomer is polymerized in order to form a polymer of low molecular weight, which phase-separates from the organic phase and is concentrated on the surface of the organic phase with the formation of a polymer phase of low molecular weight. A second batch of the organic phase is then introduced into the aqueous phase, when the polymer of low molecular weight reaches a conversion ratio of monomer to polymer which is equal to or less than 80%, with the second batch of the organic phase comprising a crosslinking monomer and with the crosslinking monomer being absorbed in the polymer phase of low molecular weight. Further polymerization produces a hollow polymer latex particle.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | FOERFARANDE FOER FRAMSTAELLNING AV HAOLPARTIKELLATEX |
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