Production of polyurea spray elastomer for use in concrete repair and waterproofing, involves reacting a prepolymer derived largely from 2,4-diphenyl-methanedi-isocyanate with an amine component
A method for the production of polyurea spray elastomers from polyisocyanates and amines, in which the polyisocyanate component is a prepolymer derived from 2,4-diphenylmethanedi-isocyanate (2,4-MDI) or a mixture of 2,4-MDI and 4,4-MDI containing at least 50 wt% 2,4-MDI, optionally together with oth...
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| creator | SPERBER, TIMO ELING, BEREND KREYENSCHMIDT, MARTIN WIND, MICHAEL |
| description | A method for the production of polyurea spray elastomers from polyisocyanates and amines, in which the polyisocyanate component is a prepolymer derived from 2,4-diphenylmethanedi-isocyanate (2,4-MDI) or a mixture of 2,4-MDI and 4,4-MDI containing at least 50 wt% 2,4-MDI, optionally together with other MDI-based isocyanates. A method for the production of polyurea spray elastomers (I) by reacting (a) polyisocyanates with (b) amines, in which (a) comprises (ai) reaction products of compounds containing at least two NCO-reactive hydrogens with 2,4-MDI or a mixture of 2,4-MDI and 4,4-MDI containing at least 50 wt 2,4-MDI, optionally together with (aii) mixtures of MDI and polymethylene-polyphenylene-polyisocyanates and/or (aiii) isomers of MDI which may be modified with groups other than urethane, and (b) is a mixture of (bi) polyether-amine(s) and (bii) other prim. or sec. amine(s) as chain extender(s). An independent claim is also included for polyurea spray elastomers (I) obtained by this method.
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Polyharnstoff-Sprühelastomeren durch Umsetzung von DOLLAR A a) Polyisocyanaten mit DOLLAR A b) Aminen, DOLLAR A dadurch gekennzeichnet, dass als Polyisocyanate a) DOLLAR A ai) Umsetzungsprodukte aus Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen mit 2,4'-MDI, einem Gemisch aus 2,4'-MDI und 4,4'-MDI mit einem Gehalt an 2,4'-MDI von mindestens 50 Gew.-% gegebenenfalls gemeinsam mit DOLLAR A aii) Gemischen aus MDI und Polymethylen-polyphenylen-polyisocyanaten und/oder DOLLAR A aiii) Isomeren von MDI, die durch Einbau von anderen als Urethangruppen modifiziert sein können, DOLLAR A und als Amine b) ein Gemisch aus bi) mindestens einem Polyetheramin, und bii) mindestens einem von bi) verschiedenen primären oder sekundären Amin als Kettenverlängerer eingesetzt werden. |
| format | Patent |
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Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Polyharnstoff-Sprühelastomeren durch Umsetzung von DOLLAR A a) Polyisocyanaten mit DOLLAR A b) Aminen, DOLLAR A dadurch gekennzeichnet, dass als Polyisocyanate a) DOLLAR A ai) Umsetzungsprodukte aus Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen mit 2,4'-MDI, einem Gemisch aus 2,4'-MDI und 4,4'-MDI mit einem Gehalt an 2,4'-MDI von mindestens 50 Gew.-% gegebenenfalls gemeinsam mit DOLLAR A aii) Gemischen aus MDI und Polymethylen-polyphenylen-polyisocyanaten und/oder DOLLAR A aiii) Isomeren von MDI, die durch Einbau von anderen als Urethangruppen modifiziert sein können, DOLLAR A und als Amine b) ein Gemisch aus bi) mindestens einem Polyetheramin, und bii) mindestens einem von bi) verschiedenen primären oder sekundären Amin als Kettenverlängerer eingesetzt werden.</description><edition>7</edition><language>eng ; ger</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2005</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=20051124&DB=EPODOC&CC=DE&NR=102004022683A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20051124&DB=EPODOC&CC=DE&NR=102004022683A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SPERBER, TIMO</creatorcontrib><creatorcontrib>ELING, BEREND</creatorcontrib><creatorcontrib>KREYENSCHMIDT, MARTIN</creatorcontrib><creatorcontrib>WIND, MICHAEL</creatorcontrib><title>Production of polyurea spray elastomer for use in concrete repair and waterproofing, involves reacting a prepolymer derived largely from 2,4-diphenyl-methanedi-isocyanate with an amine component</title><description>A method for the production of polyurea spray elastomers from polyisocyanates and amines, in which the polyisocyanate component is a prepolymer derived from 2,4-diphenylmethanedi-isocyanate (2,4-MDI) or a mixture of 2,4-MDI and 4,4-MDI containing at least 50 wt% 2,4-MDI, optionally together with other MDI-based isocyanates. A method for the production of polyurea spray elastomers (I) by reacting (a) polyisocyanates with (b) amines, in which (a) comprises (ai) reaction products of compounds containing at least two NCO-reactive hydrogens with 2,4-MDI or a mixture of 2,4-MDI and 4,4-MDI containing at least 50 wt 2,4-MDI, optionally together with (aii) mixtures of MDI and polymethylene-polyphenylene-polyisocyanates and/or (aiii) isomers of MDI which may be modified with groups other than urethane, and (b) is a mixture of (bi) polyether-amine(s) and (bii) other prim. or sec. amine(s) as chain extender(s). An independent claim is also included for polyurea spray elastomers (I) obtained by this method.
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Polyharnstoff-Sprühelastomeren durch Umsetzung von DOLLAR A a) Polyisocyanaten mit DOLLAR A b) Aminen, DOLLAR A dadurch gekennzeichnet, dass als Polyisocyanate a) DOLLAR A ai) Umsetzungsprodukte aus Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen mit 2,4'-MDI, einem Gemisch aus 2,4'-MDI und 4,4'-MDI mit einem Gehalt an 2,4'-MDI von mindestens 50 Gew.-% gegebenenfalls gemeinsam mit DOLLAR A aii) Gemischen aus MDI und Polymethylen-polyphenylen-polyisocyanaten und/oder DOLLAR A aiii) Isomeren von MDI, die durch Einbau von anderen als Urethangruppen modifiziert sein können, DOLLAR A und als Amine b) ein Gemisch aus bi) mindestens einem Polyetheramin, und bii) mindestens einem von bi) verschiedenen primären oder sekundären Amin als Kettenverlängerer eingesetzt werden.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON 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>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjjFOw0AQRd1QoMAdpqGLJceJEC0KQZQU9NHI-22vtDuzml078vU4GYvEAah-8_Tev2--P03dMhSvQjpS0rAtBqacjDdC4Fw0wmhUoyWDvNCgMhgKyJDYG7E4unGBJVMdvUz7Sq0aVuSKcHXLREyp4tX-K3Mwv8JRYJsQNhpNI_X7U-t8miFbaCPKzALnW5912Fiqn26-zLVGHL2g3ohJBVIemruRQ8bj3-6ap_fL1_mjrb0rcuIBgnJ9uxy6vutOXd8_vxxfD8f_cj9NsmRB</recordid><startdate>20051124</startdate><enddate>20051124</enddate><creator>SPERBER, TIMO</creator><creator>ELING, BEREND</creator><creator>KREYENSCHMIDT, MARTIN</creator><creator>WIND, MICHAEL</creator><scope>EVB</scope></search><sort><creationdate>20051124</creationdate><title>Production of polyurea spray elastomer for use in concrete repair and waterproofing, involves reacting a prepolymer derived largely from 2,4-diphenyl-methanedi-isocyanate with an amine component</title><author>SPERBER, TIMO ; ELING, BEREND ; KREYENSCHMIDT, MARTIN ; WIND, MICHAEL</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE102004022683A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; ger</language><creationdate>2005</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>SPERBER, TIMO</creatorcontrib><creatorcontrib>ELING, BEREND</creatorcontrib><creatorcontrib>KREYENSCHMIDT, MARTIN</creatorcontrib><creatorcontrib>WIND, MICHAEL</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SPERBER, TIMO</au><au>ELING, BEREND</au><au>KREYENSCHMIDT, MARTIN</au><au>WIND, MICHAEL</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Production of polyurea spray elastomer for use in concrete repair and waterproofing, involves reacting a prepolymer derived largely from 2,4-diphenyl-methanedi-isocyanate with an amine component</title><date>2005-11-24</date><risdate>2005</risdate><abstract>A method for the production of polyurea spray elastomers from polyisocyanates and amines, in which the polyisocyanate component is a prepolymer derived from 2,4-diphenylmethanedi-isocyanate (2,4-MDI) or a mixture of 2,4-MDI and 4,4-MDI containing at least 50 wt% 2,4-MDI, optionally together with other MDI-based isocyanates. A method for the production of polyurea spray elastomers (I) by reacting (a) polyisocyanates with (b) amines, in which (a) comprises (ai) reaction products of compounds containing at least two NCO-reactive hydrogens with 2,4-MDI or a mixture of 2,4-MDI and 4,4-MDI containing at least 50 wt 2,4-MDI, optionally together with (aii) mixtures of MDI and polymethylene-polyphenylene-polyisocyanates and/or (aiii) isomers of MDI which may be modified with groups other than urethane, and (b) is a mixture of (bi) polyether-amine(s) and (bii) other prim. or sec. amine(s) as chain extender(s). An independent claim is also included for polyurea spray elastomers (I) obtained by this method.
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Polyharnstoff-Sprühelastomeren durch Umsetzung von DOLLAR A a) Polyisocyanaten mit DOLLAR A b) Aminen, DOLLAR A dadurch gekennzeichnet, dass als Polyisocyanate a) DOLLAR A ai) Umsetzungsprodukte aus Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen mit 2,4'-MDI, einem Gemisch aus 2,4'-MDI und 4,4'-MDI mit einem Gehalt an 2,4'-MDI von mindestens 50 Gew.-% gegebenenfalls gemeinsam mit DOLLAR A aii) Gemischen aus MDI und Polymethylen-polyphenylen-polyisocyanaten und/oder DOLLAR A aiii) Isomeren von MDI, die durch Einbau von anderen als Urethangruppen modifiziert sein können, DOLLAR A und als Amine b) ein Gemisch aus bi) mindestens einem Polyetheramin, und bii) mindestens einem von bi) verschiedenen primären oder sekundären Amin als Kettenverlängerer eingesetzt werden.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Production of polyurea spray elastomer for use in concrete repair and waterproofing, involves reacting a prepolymer derived largely from 2,4-diphenyl-methanedi-isocyanate with an amine component |
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