Prodn. of aq. self-crosslinking copolymer dispersions for paint binders - by two-stage emulsion polymerisation of acrylic monomer mixt. contg. acetoacetyl and carboxyl gps., followed by neutralisation with poly:amine

A process is claimed for the prodn. of aq., self-crosslinking copolymer dispersions (I) with the following monomer compsn., neutralised with polyamine crosslinkers: (Aa) 3-35 (pref. 8-15) wt.% (meth)acrylate monomers with acetoacetyl gps., (Ab) 1-20 (pref. 3-16) wt.% alpha ,beta -unsatd. carboxylic...

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Hauptverfasser: KRIESSMANN INGO DR, AWAD RAMI-RAIMUND DR, GSOELL HANNELORE
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creator KRIESSMANN INGO DR
AWAD RAMI-RAIMUND DR
GSOELL HANNELORE
description A process is claimed for the prodn. of aq., self-crosslinking copolymer dispersions (I) with the following monomer compsn., neutralised with polyamine crosslinkers: (Aa) 3-35 (pref. 8-15) wt.% (meth)acrylate monomers with acetoacetyl gps., (Ab) 1-20 (pref. 3-16) wt.% alpha ,beta -unsatd. carboxylic acid, pref. (meth)acrylic acid, (Ac) 11-96 (pref. 30-70) wt.% alkyl (meth)acrylate and opt. maleate or fumarate diester, and (Ad) 0-40 (pref. 0-25) wt.% other comonomers such as vinylaromatics, vinyl ester, hydroxyalkyl (meth)acrylate or (meth)acrylamide. The process comprises: (A) two-stage radical emulsion polymerisation, comprising (i) copolymerisation of 60-90 wt.% of a mixt. of monomers (Aa)- (Ad) followed by (ii) copolymerisation of 10-40 wt.% of a mixt. of (Ac) and (Ad), to give an acrylate copolymer with an acetoacetyl gp. content of 0.2-1.7 (pref. 0.4-0.8) mole/kg and a COOH gp. content of 0.15-1.6 (pref. 0.4-0.75) mole/kg, the COOH gp. content amounting to 50-95 (pref. 80-90) mole% w.r.t. acetoacetyl gps., and (B) neutralisation of COOH gps. by reaction with 50-100 (pref. 90-100) mole% (w.r.t. total prim. amine gps.) of polyamine contg. at least 2 prim. amino gps.. Also claimed are aq., self-crosslinking copolymer dispersions (I) obtd. by this process. The invention relates to the use of the aqueous, self- crosslinking copolymer dispersions which are prepared in accordance with a two-stage process, are based on acetoacetyl- and carboxyl-containing acrylate polymers and are neutralized with polyamines which act as a crosslinking component as binders, in combination with polyisocyanates of low molecular mass, for two-component coating materials which exhibit a sufficiently long pot life and a markedly reduced tendency toward the yellowing of light-coloured woods.
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(meth)acrylic acid, (Ac) 11-96 (pref. 30-70) wt.% alkyl (meth)acrylate and opt. maleate or fumarate diester, and (Ad) 0-40 (pref. 0-25) wt.% other comonomers such as vinylaromatics, vinyl ester, hydroxyalkyl (meth)acrylate or (meth)acrylamide. The process comprises: (A) two-stage radical emulsion polymerisation, comprising (i) copolymerisation of 60-90 wt.% of a mixt. of monomers (Aa)- (Ad) followed by (ii) copolymerisation of 10-40 wt.% of a mixt. of (Ac) and (Ad), to give an acrylate copolymer with an acetoacetyl gp. content of 0.2-1.7 (pref. 0.4-0.8) mole/kg and a COOH gp. content of 0.15-1.6 (pref. 0.4-0.75) mole/kg, the COOH gp. content amounting to 50-95 (pref. 80-90) mole% w.r.t. acetoacetyl gps., and (B) neutralisation of COOH gps. by reaction with 50-100 (pref. 90-100) mole% (w.r.t. total prim. amine gps.) of polyamine contg. at least 2 prim. amino gps.. Also claimed are aq., self-crosslinking copolymer dispersions (I) obtd. by this process. The invention relates to the use of the aqueous, self- crosslinking copolymer dispersions which are prepared in accordance with a two-stage process, are based on acetoacetyl- and carboxyl-containing acrylate polymers and are neutralized with polyamines which act as a crosslinking component as binders, in combination with polyisocyanates of low molecular mass, for two-component coating materials which exhibit a sufficiently long pot life and a markedly reduced tendency toward the yellowing of light-coloured woods.</description><edition>6</edition><language>eng ; ger</language><subject>ADHESIVES ; CHEMICAL PAINT OR INK REMOVERS ; CHEMISTRY ; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS ; COMPOSITIONS BASED THEREON ; CORRECTING FLUIDS ; DYES ; FILLING PASTES ; INKS ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAINTS ; PASTES OR SOLIDS FOR COLOURING OR PRINTING ; POLISHES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; USE OF MATERIALS THEREFOR ; WOODSTAINS</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&amp;date=19980225&amp;DB=EPODOC&amp;CC=AT&amp;NR=403478B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19980225&amp;DB=EPODOC&amp;CC=AT&amp;NR=403478B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KRIESSMANN INGO DR</creatorcontrib><creatorcontrib>AWAD RAMI-RAIMUND DR</creatorcontrib><creatorcontrib>GSOELL HANNELORE</creatorcontrib><title>Prodn. of aq. self-crosslinking copolymer dispersions for paint binders - by two-stage emulsion polymerisation of acrylic monomer mixt. contg. acetoacetyl and carboxyl gps., followed by neutralisation with poly:amine</title><description>A process is claimed for the prodn. of aq., self-crosslinking copolymer dispersions (I) with the following monomer compsn., neutralised with polyamine crosslinkers: (Aa) 3-35 (pref. 8-15) wt.% (meth)acrylate monomers with acetoacetyl gps., (Ab) 1-20 (pref. 3-16) wt.% alpha ,beta -unsatd. carboxylic acid, pref. 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The invention relates to the use of the aqueous, self- crosslinking copolymer dispersions which are prepared in accordance with a two-stage process, are based on acetoacetyl- and carboxyl-containing acrylate polymers and are neutralized with polyamines which act as a crosslinking component as binders, in combination with polyisocyanates of low molecular mass, for two-component coating materials which exhibit a sufficiently long pot life and a markedly reduced tendency toward the yellowing of light-coloured woods.</description><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>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>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PAINTS</subject><subject>PASTES OR SOLIDS FOR COLOURING OR PRINTING</subject><subject>POLISHES</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>USE OF MATERIALS THEREFOR</subject><subject>WOODSTAINS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFjUFOAzEMRWfDAhXOgA_QiZBaiYodRSCWLLqvMolnsEjsEKeazk05Dgkqaza2_vf3f9fd93sWzwZkBPtlQDGMvcuiGog_iSdwkiQsETN40oRZSVhhlAzJEhcYiH11oYdhgTJLr8VOCBhPoUXh8k1qS5ON4_ISyEEUltYb6VxM5XCZTD1ikTaWAJY9OJsHOVcxJTXryg1BZvQNxngq2Ya_5pnKxy_t0UZivOmuRhsUby971d29vhye33pMckRNlcFYjk-H7f1m-7Db7zf_J34AmUlp_Q</recordid><startdate>19980225</startdate><enddate>19980225</enddate><creator>KRIESSMANN INGO DR</creator><creator>AWAD RAMI-RAIMUND DR</creator><creator>GSOELL HANNELORE</creator><scope>EVB</scope></search><sort><creationdate>19980225</creationdate><title>Prodn. of aq. self-crosslinking copolymer dispersions for paint binders - by two-stage emulsion polymerisation of acrylic monomer mixt. contg. acetoacetyl and carboxyl gps., followed by neutralisation with poly:amine</title><author>KRIESSMANN INGO DR ; AWAD RAMI-RAIMUND DR ; GSOELL HANNELORE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AT403478BB3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; ger</language><creationdate>1998</creationdate><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>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>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PAINTS</topic><topic>PASTES OR SOLIDS FOR COLOURING OR PRINTING</topic><topic>POLISHES</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>USE OF MATERIALS THEREFOR</topic><topic>WOODSTAINS</topic><toplevel>online_resources</toplevel><creatorcontrib>KRIESSMANN INGO DR</creatorcontrib><creatorcontrib>AWAD RAMI-RAIMUND DR</creatorcontrib><creatorcontrib>GSOELL HANNELORE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KRIESSMANN INGO DR</au><au>AWAD RAMI-RAIMUND DR</au><au>GSOELL HANNELORE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Prodn. of aq. self-crosslinking copolymer dispersions for paint binders - by two-stage emulsion polymerisation of acrylic monomer mixt. contg. acetoacetyl and carboxyl gps., followed by neutralisation with poly:amine</title><date>1998-02-25</date><risdate>1998</risdate><abstract>A process is claimed for the prodn. of aq., self-crosslinking copolymer dispersions (I) with the following monomer compsn., neutralised with polyamine crosslinkers: (Aa) 3-35 (pref. 8-15) wt.% (meth)acrylate monomers with acetoacetyl gps., (Ab) 1-20 (pref. 3-16) wt.% alpha ,beta -unsatd. carboxylic acid, pref. (meth)acrylic acid, (Ac) 11-96 (pref. 30-70) wt.% alkyl (meth)acrylate and opt. maleate or fumarate diester, and (Ad) 0-40 (pref. 0-25) wt.% other comonomers such as vinylaromatics, vinyl ester, hydroxyalkyl (meth)acrylate or (meth)acrylamide. The process comprises: (A) two-stage radical emulsion polymerisation, comprising (i) copolymerisation of 60-90 wt.% of a mixt. of monomers (Aa)- (Ad) followed by (ii) copolymerisation of 10-40 wt.% of a mixt. of (Ac) and (Ad), to give an acrylate copolymer with an acetoacetyl gp. content of 0.2-1.7 (pref. 0.4-0.8) mole/kg and a COOH gp. content of 0.15-1.6 (pref. 0.4-0.75) mole/kg, the COOH gp. content amounting to 50-95 (pref. 80-90) mole% w.r.t. acetoacetyl gps., and (B) neutralisation of COOH gps. by reaction with 50-100 (pref. 90-100) mole% (w.r.t. total prim. amine gps.) of polyamine contg. at least 2 prim. amino gps.. Also claimed are aq., self-crosslinking copolymer dispersions (I) obtd. by this process. The invention relates to the use of the aqueous, self- crosslinking copolymer dispersions which are prepared in accordance with a two-stage process, are based on acetoacetyl- and carboxyl-containing acrylate polymers and are neutralized with polyamines which act as a crosslinking component as binders, in combination with polyisocyanates of low molecular mass, for two-component coating materials which exhibit a sufficiently long pot life and a markedly reduced tendency toward the yellowing of light-coloured woods.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
COMPOSITIONS BASED THEREON
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS THEREFOR
WOODSTAINS
title Prodn. of aq. self-crosslinking copolymer dispersions for paint binders - by two-stage emulsion polymerisation of acrylic monomer mixt. contg. acetoacetyl and carboxyl gps., followed by neutralisation with poly:amine
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