WO2023242311A1 - Composition de revêtement aqueuse à faible brillant présentant des propriétés mécaniques améliorées - Google Patents

Composition de revêtement aqueuse à faible brillant présentant des propriétés mécaniques améliorées Download PDF

Info

Publication number
WO2023242311A1
WO2023242311A1 PCT/EP2023/066043 EP2023066043W WO2023242311A1 WO 2023242311 A1 WO2023242311 A1 WO 2023242311A1 EP 2023066043 W EP2023066043 W EP 2023066043W WO 2023242311 A1 WO2023242311 A1 WO 2023242311A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating composition
polyurethane
aqueous self
crosslinking coating
diol
Prior art date
Application number
PCT/EP2023/066043
Other languages
English (en)
Inventor
Livia BIGANZOLI
Stefano CARBONI
Karine Coget
Domenico VETRI
Original Assignee
Lamberti Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lamberti Spa filed Critical Lamberti Spa
Publication of WO2023242311A1 publication Critical patent/WO2023242311A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
    • C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
    • C08G18/0828—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing sulfonate groups or groups forming them
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225—Polyamines
    • C08G18/3228—Polyamines acyclic
    • C08G18/3231—Hydrazine or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
    • C08G18/348—Hydroxycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • D06N3/0093—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by applying resin powders; by sintering
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/042—Acrylic polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/142—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer
    • D06N3/144—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer with polyurethane and polymerisation products, e.g. acrylics, PVC
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/147—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the isocyanates used
    • D06N3/148—(cyclo)aliphatic polyisocyanates

Definitions

  • low gloss coating compositions are obtained by addition of inorganic matting agents, such as amorphous or crystalline silica.
  • inorganic matting agents such as amorphous or crystalline silica.
  • siliceous particles poses serious health risks and therefore their use should be avoided.
  • Aqueous polyurethane dispersions represent a safe valid alternative to the traditional inorganic matting agents.
  • WO 2010/015494 discloses anionic polyurethane dispersions based on a polyglycol ether, poly(tetramethyleneglycol), that provide films having low gloss and soft touch atthe same time; soft touch effect or velvet effect is another superficial characteristic which is more and more appreciated by the market.
  • films obtained from the anionic polyurethane dispersions described WO 2010/015494 show limited mechanical properties; particularly, they result impaired or damaged when contacted with organic solvents.
  • WO2016/102596 suggests an aqueous coating composition comprising dispersed polymer particles, wherein the dispersed polymer particles are polyurethane-vinyl polymer hybrid particles obtained by free- radical polymerization of at least one vinyl monomer in the presence of a polyurethane.
  • the present invention relates to an aqueous self-crosslinking coating composition
  • an aqueous self-crosslinking coating composition comprising dispersed polymer particles, wherein: i) the dispersed polymer particles are polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer and at least one ketone group containing vinyl monomer in the presence of a polyurethane, ii) the polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:4 to 20:1, iii) the polyurethane is obtained by the reaction of at least the fol lowing components: a) from 5 to 40 % by weight (wt%) of at least one aliphatic or cycloaliphatic diisocyanate, b) from 0.5 to 5 wt% of at least one diol having at least one carboxylic or carboxylate group, c) from 40 to 90 wt
  • the present invention relates to a method for coating leather or artificial leather comprising: providing an aqueous self-crosslinking coating composition comprising dispersed polymer particles as described above, applying it to their upper (finished and exposed to sight) surface and drying.
  • the process for preparing the aqueous self-crosslinking coating composition of the present invention comprises the following steps: i) reaction of components a) to e) and optionally e) and f) to form a polyurethane prepolymer, ii) forming an aqueous dispersion of the polyurethane prepolymer in water, iii) chain extending the prepolymer with component d) to obtain a polyurethane dispersion, iv) polymerizing at least one vinyl monomer and at least one ketone group containing vinyl monomer in the polyurethane dispersion in the presence of a radical initiator to obtain a dispersion of polyurethane-vinyl polymer hybrid particles, v) adding a thickener and, optionally, a surfactant in water before forming the aqueous dispersion of the polyurethane prepolymer in water, or after any of the steps ii) to iv), vi) adding a dihydrazide
  • the carboxylic water dispersing groups of component b) are preferably fully or partially in the form of a salt. Conversion to the salt form is effected by neutralisation with a base, preferably after the preparation of the prepolymer and before its dispersion in water.
  • the base is preferably ammonia, an amine or an inorganic base.
  • Suitable amines include tertiary amines, for example triethylamine or N,N- dimethylethanolamine.
  • Suitable inorganic bases include alkali hydroxides and carbonates, for example lithium hydroxide, sodium hydroxide, or potassium hydroxide.
  • Component c) is at least one diol with molecular weight between 500 and 5,000 g/mol.
  • the amount of component c) relative to the total amount of components used to prepare the polyurethane is from 40 to 90 wt%, preferably from 50 to 70 wt%.
  • nonionic polyether diols may be used as component c.
  • polyester diols may be used as component c.
  • polycarbonate diols may be used as component c.
  • polyester diols are those obtainable from diol-initiated polymerization of hydroxy carboxylic acids containing from 2 to 26, and preferably from 4 to 12 carbon atoms, or a lactone thereof.
  • the hydroxy carboxylic acids may be saturated or unsaturated, linear or branched.
  • Componentf is at least one aliphatic or cycloaliphatic polyisocyanate having average functionality above 2.
  • Said at least one vinyl monomer does not contain ketone groups and is selected among methyl methacrylate, methyl acrylate, ethyl methacrylate, ethyl acrylate, butyl acrylate, butyl methacrylate, styrene or mixtures thereof. Methyl methacrylate is preferred.
  • Said at least one vinyl monomer represents at least 50 wt%, preferably at least 70 wt% of the total amount of the other vinyl monomer(s) used to prepare the vinyl polymer.
  • the mean particle size (D[0.9]) of the dispersed polymer particles is less than 25 micron, preferably less than 15 micron.
  • D[0.9] means that the first 90 volume % of the particle size distribution has a mean particle size Y.
  • the particle size and particle size distribution are measured by laser diffraction using a Mastersizer 3000 from Malvern.
  • acrylic thickeners refers to thickeners synthesized from acrylic monomers, that is monomers derived from acrylic acid, methacrylic acid and mixtures thereof.
  • Suitable acrylic emulsion thickeners based on methacrylic acid and ethyl acrylate are alkali swellable acrylic emulsion thickeners (ASE), possibly including hydrophobic polyethoxylated monomers (such as (meth)acrylic esters of ethoxylated C1-C22 fatty alcohols) (HASE) and/or polyethylenically unsaturated monomers (crosslinkers)
  • ASE alkali swellable acrylic emulsion thickeners
  • HASE hydrophobic polyethoxylated monomers
  • crosslinkers polyethylenically unsaturated monomers
  • the surfactant can be chosen between non-ionic and anionic surfactants, but is preferably a non-ionic surfactant, more preferably a linear or branched aliphatic ethoxylated alcohol.
  • the aqueous self-crosslinking coating composition of the present invention can be advantageously used in the finishing of leather and artificial leather, in the superficial coating of woven fabrics, paper, plastics, such as polycarbonates and PVC, wood and metals.
  • the 60° gloss of the aqueous coating composition after drying is ⁇ 10, preferably ⁇ 2.
  • the 85° gloss of the aqueous coating composition after drying is ⁇ 60, preferably ⁇ 20. Koniq hardness
  • the prepolymer is cooled down at 65°C and triethylamine (TEA) is added under stirring to partially or fully neutralize the carboxylic groups present in the prepolymer backbone.
  • TEA triethylamine
  • the radical polymerization is initiated by the addition of 0.350 g of tert-butyl hydroperoxide and 0.350 g of Bruggolite® E28 (formaldehyde free sodium salt of an organic sulfinic acid derivative, commercially available from L. Bruggemann GmbH & Co. KG) simultaneously. Then 20 g of demineralized water are added.
  • the resulting urethane/acrylic Hybrid dispersion is filtered with a 150 pm canvas and brought to a dry content of 31.3% and has a pH around 7.9 and a viscosity of 343 cps.
  • the dispersion has a D (0.5) mean particle size of 6.0 pm and D (0.9) mean particle size of 16.3 pm.
  • Example 4 is an 80/20 urethane/vinyl self-crosslinking modification of Comparative Example 1.
  • Methylmethacrylate and diacetonacrylamide monomers are polymerised in the presence of the polyurethane dispersion prepared in the Comparative Example 1.
  • the radical polymerization is initiated by the addition of 0.245 g of tert-butyl hydroperoxide and 0.230 g of Bruggolite® E28 (formaldehyde free sodium salt of an organic sulfinic acid derivative, commercially available from L. Bruggemann GmbH & Co. KG) simultaneously. Than 0.643 g of adipic acid dihydrazide in 13 g of demineralized water are added.
  • the resulting self-crosslinking urethane/acrylic hybrid dispersion is filtered with a 150 pm canvas and brought to a dry content of 31.3% and has a pH around 7.9 and a viscosity of 343 cps.
  • the dispersion has a D (0.5) mean particle size of 4.5 pm and D (0.9) mean particle size of 14.2 pm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

La présente invention concerne une composition aqueuse de revêtement auto-réticulante comprenant des particules polymères dispersées, dans laquelle : i) les particules polymères dispersées sont des particules hybrides polyuréthane-polymère vinylique obtenues par polymérisation à radicaux libres d'au moins un monomère vinylique et d'au moins un groupe cétone contenant un monomère vinylique en présence d'un polyuréthane, ii) le polyuréthane et le polymère vinylique dans les particules hybrides sont présents dans un rapport pondéral polyuréthane/polymère vinylique allant de 1 : 4 à 20 : 1.
PCT/EP2023/066043 2022-06-16 2023-06-15 Composition de revêtement aqueuse à faible brillant présentant des propriétés mécaniques améliorées WO2023242311A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202200012758 2022-06-16
IT102022000012758 2022-06-16

Publications (1)

Publication Number Publication Date
WO2023242311A1 true WO2023242311A1 (fr) 2023-12-21

Family

ID=85285030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/066043 WO2023242311A1 (fr) 2022-06-16 2023-06-15 Composition de revêtement aqueuse à faible brillant présentant des propriétés mécaniques améliorées

Country Status (1)

Country Link
WO (1) WO2023242311A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005058995A1 (fr) * 2003-12-17 2005-06-30 Dsm Ip Assets B.V. Compositions aqueuses de revetement d'urethanne-vinyl antitaches
WO2010015494A2 (fr) 2008-08-08 2010-02-11 Lamberti Spa Dispersions aqueuses de polyuréthanes anioniques
WO2013091209A1 (fr) * 2011-12-22 2013-06-27 Dow Global Technologies Llc Nouveau procédé pour la fabrication de dispersions hybrides de polyuréthane/acrylique réticulables
WO2016102596A1 (fr) 2014-12-23 2016-06-30 Dsm Ip Assets B.V. Composition aqueuse de revêtement ayant un toucher doux après séchage
WO2018172526A1 (fr) * 2017-03-23 2018-09-27 Lamberti Spa Dispersions aqueuses de polyuréthane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005058995A1 (fr) * 2003-12-17 2005-06-30 Dsm Ip Assets B.V. Compositions aqueuses de revetement d'urethanne-vinyl antitaches
WO2010015494A2 (fr) 2008-08-08 2010-02-11 Lamberti Spa Dispersions aqueuses de polyuréthanes anioniques
WO2013091209A1 (fr) * 2011-12-22 2013-06-27 Dow Global Technologies Llc Nouveau procédé pour la fabrication de dispersions hybrides de polyuréthane/acrylique réticulables
WO2016102596A1 (fr) 2014-12-23 2016-06-30 Dsm Ip Assets B.V. Composition aqueuse de revêtement ayant un toucher doux après séchage
WO2018172526A1 (fr) * 2017-03-23 2018-09-27 Lamberti Spa Dispersions aqueuses de polyuréthane

Similar Documents

Publication Publication Date Title
US9234068B2 (en) Method for preparing aqueous polyacrylate modified polyurethane dispersions
DK2655458T3 (en) PROCEDURE FOR PREPARING POLYURETHAN-POLYACRYLATE HYBRID DISPERSIONS
US9074038B2 (en) Stain resistant urethane-vinyl aqueous coating compositions
US7683139B2 (en) Low NMP aqueous polyurethane composition with a diluent
CN110300771B (zh) 水性涂料组合物
US20110020556A1 (en) Aqueous coating composition comprising polyurethanes and vinyl polymers
KR102575946B1 (ko) 수성 폴리우레탄 분산액
US11332638B2 (en) Aqueous coating composition with soft touch upon drying
AU2007277156A1 (en) Polytrimethylene ether-based polyurethane ionomers
WO2023242311A1 (fr) Composition de revêtement aqueuse à faible brillant présentant des propriétés mécaniques améliorées

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23733287

Country of ref document: EP

Kind code of ref document: A1