METHOD FOR PREPARING AN AQUEOUS ACRYLAMIDE SOLUTION HAVING A LOW ACRYLIC ACID CONCENTRATION
The present invention relates to methods for preparing an aqueous acrylamide solution having a low acrylic acid concentration. In addition, the present invention relates to methods for reducing the acrylic acid concentration of an aqueous acrylamide solution. The methods involve a bioconversion of a...
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| creator | BALDENIUS, KAI-UWE BRAUN, MICHAEL DAEUWEL, JUERGEN OEDMAN, PETER KLEINER, MATTHIAS LANG, HANS-JUERGEN KIEFER, MICHAEL BUDDE, MICHAEL FREYER, STEPHAN |
| description | The present invention relates to methods for preparing an aqueous acrylamide solution having a low acrylic acid concentration. In addition, the present invention relates to methods for reducing the acrylic acid concentration of an aqueous acrylamide solution. The methods involve a bioconversion of acrylonitrile to acrylamide in the presence of a biocatalyst, wherein during the bioconversion the content of acrylonitrile is maintained at 0.3 w/w % or more referred to the total weight of the composition in the reactor. Also provided is an aqueous acrylamide solution which is obtained by the methods of the present invention. Furthermore, the present invention is related to an acrylamide homopolymer or copolymer obtained by polymerizing the acrylamide of the aqueous solution. |
| format | Patent |
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In addition, the present invention relates to methods for reducing the acrylic acid concentration of an aqueous acrylamide solution. The methods involve a bioconversion of acrylonitrile to acrylamide in the presence of a biocatalyst, wherein during the bioconversion the content of acrylonitrile is maintained at 0.3 w/w % or more referred to the total weight of the composition in the reactor. Also provided is an aqueous acrylamide solution which is obtained by the methods of the present invention. Furthermore, the present invention is related to an acrylamide homopolymer or copolymer obtained by polymerizing the acrylamide of the aqueous solution.</description><language>eng</language><subject>BEER ; BIOCHEMISTRY ; CHEMISTRY ; ENZYMOLOGY ; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE ; METALLURGY ; MICROBIOLOGY ; MUTATION OR GENETIC ENGINEERING ; SPIRITS ; VINEGAR ; WINE</subject><creationdate>2021</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=20210906&DB=EPODOC&CC=MY&NR=187158A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210906&DB=EPODOC&CC=MY&NR=187158A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BALDENIUS, KAI-UWE</creatorcontrib><creatorcontrib>BRAUN, MICHAEL</creatorcontrib><creatorcontrib>DAEUWEL, JUERGEN</creatorcontrib><creatorcontrib>OEDMAN, PETER</creatorcontrib><creatorcontrib>KLEINER, MATTHIAS</creatorcontrib><creatorcontrib>LANG, HANS-JUERGEN</creatorcontrib><creatorcontrib>KIEFER, MICHAEL</creatorcontrib><creatorcontrib>BUDDE, MICHAEL</creatorcontrib><creatorcontrib>FREYER, STEPHAN</creatorcontrib><title>METHOD FOR PREPARING AN AQUEOUS ACRYLAMIDE SOLUTION HAVING A LOW ACRYLIC ACID CONCENTRATION</title><description>The present invention relates to methods for preparing an aqueous acrylamide solution having a low acrylic acid concentration. 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Furthermore, the present invention is related to an acrylamide homopolymer or copolymer obtained by polymerizing the acrylamide of the aqueous solution.</description><subject>BEER</subject><subject>BIOCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>ENZYMOLOGY</subject><subject>FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE</subject><subject>METALLURGY</subject><subject>MICROBIOLOGY</subject><subject>MUTATION OR GENETIC ENGINEERING</subject><subject>SPIRITS</subject><subject>VINEGAR</subject><subject>WINE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFyr0KwjAQAOAsDqK-gtwLOBQRux7J1QSSXE0TpTiUInESLdT3x9_d6Vu-qTg5ipoVVBygDlRjMH4H6AH3iTg1gDK0Fp1RBA3bFA170Hj4LLB8_AYjXxoFkr0kHwO-31xMLv11zIufM7GsKEq9ysO9y-PQn_MtPzrXFuW22JS4_hueX58w-w</recordid><startdate>20210906</startdate><enddate>20210906</enddate><creator>BALDENIUS, KAI-UWE</creator><creator>BRAUN, MICHAEL</creator><creator>DAEUWEL, JUERGEN</creator><creator>OEDMAN, PETER</creator><creator>KLEINER, MATTHIAS</creator><creator>LANG, HANS-JUERGEN</creator><creator>KIEFER, MICHAEL</creator><creator>BUDDE, MICHAEL</creator><creator>FREYER, STEPHAN</creator><scope>EVB</scope></search><sort><creationdate>20210906</creationdate><title>METHOD FOR PREPARING AN AQUEOUS ACRYLAMIDE SOLUTION HAVING A LOW ACRYLIC ACID CONCENTRATION</title><author>BALDENIUS, KAI-UWE ; BRAUN, MICHAEL ; DAEUWEL, JUERGEN ; OEDMAN, PETER ; KLEINER, MATTHIAS ; LANG, HANS-JUERGEN ; KIEFER, MICHAEL ; BUDDE, MICHAEL ; FREYER, STEPHAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_MY187158A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2021</creationdate><topic>BEER</topic><topic>BIOCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>ENZYMOLOGY</topic><topic>FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE</topic><topic>METALLURGY</topic><topic>MICROBIOLOGY</topic><topic>MUTATION OR GENETIC ENGINEERING</topic><topic>SPIRITS</topic><topic>VINEGAR</topic><topic>WINE</topic><toplevel>online_resources</toplevel><creatorcontrib>BALDENIUS, KAI-UWE</creatorcontrib><creatorcontrib>BRAUN, MICHAEL</creatorcontrib><creatorcontrib>DAEUWEL, JUERGEN</creatorcontrib><creatorcontrib>OEDMAN, PETER</creatorcontrib><creatorcontrib>KLEINER, MATTHIAS</creatorcontrib><creatorcontrib>LANG, HANS-JUERGEN</creatorcontrib><creatorcontrib>KIEFER, MICHAEL</creatorcontrib><creatorcontrib>BUDDE, MICHAEL</creatorcontrib><creatorcontrib>FREYER, STEPHAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BALDENIUS, KAI-UWE</au><au>BRAUN, MICHAEL</au><au>DAEUWEL, JUERGEN</au><au>OEDMAN, PETER</au><au>KLEINER, MATTHIAS</au><au>LANG, HANS-JUERGEN</au><au>KIEFER, MICHAEL</au><au>BUDDE, MICHAEL</au><au>FREYER, STEPHAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR PREPARING AN AQUEOUS ACRYLAMIDE SOLUTION HAVING A LOW ACRYLIC ACID CONCENTRATION</title><date>2021-09-06</date><risdate>2021</risdate><abstract>The present invention relates to methods for preparing an aqueous acrylamide solution having a low acrylic acid concentration. In addition, the present invention relates to methods for reducing the acrylic acid concentration of an aqueous acrylamide solution. The methods involve a bioconversion of acrylonitrile to acrylamide in the presence of a biocatalyst, wherein during the bioconversion the content of acrylonitrile is maintained at 0.3 w/w % or more referred to the total weight of the composition in the reactor. Also provided is an aqueous acrylamide solution which is obtained by the methods of the present invention. Furthermore, the present invention is related to an acrylamide homopolymer or copolymer obtained by polymerizing the acrylamide of the aqueous solution.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING SPIRITS VINEGAR WINE |
| title | METHOD FOR PREPARING AN AQUEOUS ACRYLAMIDE SOLUTION HAVING A LOW ACRYLIC ACID CONCENTRATION |
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