CN104629609A - Waterborne polyurethane suede coating and preparation method thereof - Google Patents

Waterborne polyurethane suede coating and preparation method thereof Download PDF

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Publication number
CN104629609A
CN104629609A CN201510064235.1A CN201510064235A CN104629609A CN 104629609 A CN104629609 A CN 104629609A CN 201510064235 A CN201510064235 A CN 201510064235A CN 104629609 A CN104629609 A CN 104629609A
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Prior art keywords
parts
add
aqueous polyurethane
polyurethane coating
coating
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CN201510064235.1A
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Chinese (zh)
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CN104629609B (en
Inventor
李传宏
操昭云
黎群
李颖
陈桂斌
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ANQING HAOYE RESIN MATERIAL SCIENCE & TECHNOLOGY Co Ltd
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ANQING HAOYE RESIN MATERIAL SCIENCE & TECHNOLOGY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/08Polyurethanes from polyethers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/0804Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0819Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
    • C08G18/0823Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/32Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203Polyhydroxy compounds
    • C08G18/3206Polyhydroxy compounds aliphatic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/34Carboxylic acids; Esters thereof with monohydroxyl compounds
    • C08G18/348Hydroxycarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4266Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
    • C08G18/4269Lactones
    • C08G18/4277Caprolactone and/or substituted caprolactone
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/4854Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666Compounds of group C08G18/48 or C08G18/52
    • C08G18/6692Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/06Polyurethanes from polyesters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/28Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for wrinkle, crackle, orange-peel, or similar decorative effects

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Paints Or Removers (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention relates to a waterborne polyurethane suede coating and a preparation method thereof. The waterborne polyurethane suede coating comprises 40-80 parts of polyhydric alcohols, 6-15 parts of a dihydric alcohol chain extender, 30-40 parts of aliphatic diisocyanate, 2-3.5 parts of dimethylolpropionic acid, 10-15 parts of a solvent, 1.5-3 parts of triethylamine, 1-5 parts of diethylenetriamine, 1-2 parts of a polyoxyethylene ether composite emulsifier and 1-2 parts of a thickening agent. The waterborne polyurethane suede coating can be subjected to direct spraying and roller coating or blade coating on the surfaces of leather, synthetic leather, fabrics, paper and plastics, a suede surface effect can be achieved, the surface mechanical properties of the coating are not influenced, and the production process is simplified.

Description

Aqueous polyurethane coating for woolen surface and preparation method thereof
Technical field
The present invention relates to a kind of aqueous polyurethane coating for woolen surface and preparation method thereof.
Background technology
The base materials such as leather, synthetic leather, fabric, paper and plastics are covered with paint, lacquer, colour wash, etc. the sense of formation matte be quite received by the market, conventional preparation method is by sanding, frosted or the method generation pile effects adding fine hair powder, but effects on surface coating can produce certain destruction, or the interpolation of fine hair powder affects the mechanical property of top coat.
Summary of the invention
In order to solve the technical problem existed in prior art, an object of the present invention is to provide one can direct spraying roller coating or blade coating leather, synthetic leather, fabric, paper and frosting, just pile effects can be produced, neither affect coatingsurface mechanical property, in turn simplify the aqueous polyurethane coating for woolen surface of production technique.In order to realize this object, the technical solution adopted in the present invention is:
A kind of aqueous polyurethane coating for woolen surface, raw materials is made up of following component:
Polyvalent alcohol 40 ~ 80 parts
Glycol chain extender 6 ~ 15 parts
Aliphatic isocyanates 30 ~ 40 parts
Dimethylol propionic acid 2 ~ 3.5 parts
Solvent 10 ~ 15 parts
Triethylamine 1.5 ~ 3 parts
Diethylenetriamine 1 ~ 5 part
Soxylat A 25-7 compound emulsifying agent 1 ~ 2 part
Thickening material 1 ~ 2 part.
Preferably, the molecular weight of described polyvalent alcohol is 800 ~ 2000, and described polyvalent alcohol is polytetrahydrofuran or polycaprolactone; Described aliphatic isocyanates is hydrogenation of benzene dicyclohexylmethane diisocyanate (MDI) or isophorone diisocyanate (IPDI); Described glycol chain extender is neopentyl glycol or BDO; Described solvent is dioxane.
Two of object of the present invention is the preparation method providing a kind of aqueous polyurethane coating for woolen surface, and in order to realize this object, the technical solution adopted in the present invention is:
Aliphatic isocyanates and polyvalent alcohol is first added in reaction vessel, 85 DEG C are reacted 2 hours, add glycol chain extender and dimethylol propionic acid again, in 70 DEG C of reactions 4 hours, add solvent and control viscosity, be cooled to 50 DEG C, add triethylamine and compound emulsifying agent, add diethylenetriamine after emulsification and react 30 minutes, finally add thickening material, discharging.
Aqueous polyurethane coating for woolen surface of the present invention, by controlling aqueous polyurethane hydrophilic radical content below stagnation point, make macromolecular chain be in rolled state in emulsion, the particulate in emulsion is large and coarse, thus pile effects when reaching film forming.But hydrophilic radical content is low, is not easy to form stable emulsion, needs to be solved by other means.Aqueous polyurethane coating for woolen surface preparation method of the present invention, adopt unique synthesis and emulsifying process, prepare the polyaminoester emulsion of unique properties, synthesis technique aspect, the method such as step-by-step polymerization and rear chain extension of employing, the aqueous polyurethane coating for woolen surface of preparation can direct spraying roller coating or blade coating leather, synthetic leather, fabric, paper and frosting, just can produce pile effects, neither affect coatingsurface mechanical property, in turn simplify production technique.
There is no this series products in the market, due to unique properties, again can Simplified flowsheet, existing Duo Jia manufacturing enterprise starts application, and should have good market outlook, manufacturing-oriented enterprise also has good economic benefit.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
40g hydrogenation of benzene dicyclohexylmethane diisocyanate and 80g polytetrahydrofuran is first added in reaction vessel, 85 DEG C are reacted 2 hours, add 15g neopentyl glycol and 3.5g dimethylol propionic acid again, in 70 DEG C of reactions 4 hours, add 15g dioxane and control viscosity, be cooled to 50 DEG C, add 2.5g triethylamine and 1.5g Soxylat A 25-7 compound emulsifying agent, add 5g diethylenetriamine after emulsification and react 30 minutes, finally add 1.5g thickening material, discharging.
Embodiment 2
30g isophorone diisocyanate and 60g polytetrahydrofuran is first added in reaction vessel, 85 DEG C are reacted 2 hours, add 13g1 again, 4-butyleneglycol and 3g dimethylol propionic acid, in 70 DEG C of reactions 4 hours, add 15g dioxane and control viscosity, be cooled to 50 DEG C, add 2g triethylamine and 1.5g Soxylat A 25-7 compound emulsifying agent, add 4g diethylenetriamine after emulsification and react 30 minutes, finally add 2g thickening material, discharging.
Embodiment 3
35g hydrogenation of benzene dicyclohexylmethane diisocyanate and 65g polycaprolactone is first added in reaction vessel, 85 DEG C are reacted 2 hours, add 14g1 again, 4-butyleneglycol and 3g dimethylol propionic acid, in 70 DEG C of reactions 4 hours, add 15g dioxane and control viscosity, be cooled to 50 DEG C, add 2g triethylamine and 1.5g Soxylat A 25-7 compound emulsifying agent, add 4g diethylenetriamine after emulsification and react 30 minutes, finally add 2g thickening material, discharging.
Above content is only conceive example and explanation to the present invention; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the design of invention or do not surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.

Claims (7)

1. an aqueous polyurethane coating for woolen surface, is characterized in that: raw materials is made up of following component:
Polyvalent alcohol 40 ~ 80 parts
Glycol chain extender 6 ~ 15 parts
Aliphatic isocyanates 30 ~ 40 parts
Dimethylol propionic acid 2 ~ 3.5 parts
Solvent 10 ~ 15 parts
Triethylamine 1.5 ~ 3 parts
Diethylenetriamine 1 ~ 5 part
Soxylat A 25-7 compound emulsifying agent 1 ~ 2 part
Thickening material 1 ~ 2 part.
2. aqueous polyurethane coating for woolen surface according to claim 1, is characterized in that: the molecular weight of described polyvalent alcohol is 800 ~ 2000.
3. aqueous polyurethane coating for woolen surface according to claim 2, is characterized in that: described polyvalent alcohol is polytetrahydrofuran or polycaprolactone.
4. aqueous polyurethane coating for woolen surface according to claim 1, is characterized in that: described aliphatic isocyanates is hydrogenation of benzene dicyclohexylmethane diisocyanate (MDI) or isophorone diisocyanate (IPDI).
5. aqueous polyurethane coating for woolen surface according to claim 1, is characterized in that: described glycol chain extender is neopentyl glycol or BDO.
6. aqueous polyurethane coating for woolen surface according to claim 1, is characterized in that: described solvent is dioxane.
7. prepare the method for aqueous polyurethane coating for woolen surface as described in any one of claim 1 ~ 6 for one kind, it is characterized in that: in reaction vessel, first add aliphatic isocyanates and polyvalent alcohol, 85 DEG C were reacted 2 hours, then add glycol chain extender and dimethylol propionic acid, in 70 DEG C of reactions 4 hours, add solvent and control viscosity, be cooled to 50 DEG C, add triethylamine and compound emulsifying agent, add diethylenetriamine after emulsification and react 30 minutes, finally add thickening material, discharging.
CN201510064235.1A 2015-02-06 2015-02-06 Aqueous polyurethane coating for woolen surface and preparation method thereof Active CN104629609B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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CN104629609B CN104629609B (en) 2017-03-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107964112A (en) * 2017-12-13 2018-04-27 安徽新胜塑料科技有限公司 A kind of preparation method of organic glass plate surface coating for woolen surface
WO2022097331A1 (en) * 2020-11-05 2022-05-12 Dic株式会社 Urethane resin composition, film, laminate, and synthetic leather
CN116814141A (en) * 2022-03-21 2023-09-29 上海岩皇环保科技有限公司 Waterborne polyurethane top-coat paint and preparation method and preparation device thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030089251A1 (en) * 2001-11-14 2003-05-15 Bill Brown Microparticle screen printing ink
CN1605608A (en) * 2004-09-07 2005-04-13 上海宝鸟化工有限公司 Aqueous environmental protection color paint
CN101307130A (en) * 2008-07-16 2008-11-19 北京科聚化工新材料有限公司 Anion water-soluble polyurethane disperse system for finishing leather and method for preparing same
CN103571323A (en) * 2012-08-06 2014-02-12 上海麟多祈化工科技有限公司 Water-based suede coating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030089251A1 (en) * 2001-11-14 2003-05-15 Bill Brown Microparticle screen printing ink
CN1605608A (en) * 2004-09-07 2005-04-13 上海宝鸟化工有限公司 Aqueous environmental protection color paint
CN101307130A (en) * 2008-07-16 2008-11-19 北京科聚化工新材料有限公司 Anion water-soluble polyurethane disperse system for finishing leather and method for preparing same
CN103571323A (en) * 2012-08-06 2014-02-12 上海麟多祈化工科技有限公司 Water-based suede coating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107964112A (en) * 2017-12-13 2018-04-27 安徽新胜塑料科技有限公司 A kind of preparation method of organic glass plate surface coating for woolen surface
WO2022097331A1 (en) * 2020-11-05 2022-05-12 Dic株式会社 Urethane resin composition, film, laminate, and synthetic leather
CN116814141A (en) * 2022-03-21 2023-09-29 上海岩皇环保科技有限公司 Waterborne polyurethane top-coat paint and preparation method and preparation device thereof

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Denomination of invention: Waterborne polyurethane suede coating and its preparation method

Granted publication date: 20170329

Pledgee: Xingye Bank Limited by Share Ltd. Anqing branch

Pledgor: ANQING HAOYE RESIN MATERIAL TECHNOLOGY CO.,LTD.

Registration number: Y2024980017561