CN106928816A - High stability solvents type plastic coating - Google Patents

High stability solvents type plastic coating Download PDF

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Publication number
CN106928816A
CN106928816A CN201710251519.0A CN201710251519A CN106928816A CN 106928816 A CN106928816 A CN 106928816A CN 201710251519 A CN201710251519 A CN 201710251519A CN 106928816 A CN106928816 A CN 106928816A
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CN
China
Prior art keywords
coating
type plastic
plastic coating
high stability
stability
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Pending
Application number
CN201710251519.0A
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Chinese (zh)
Inventor
钟华军
柏建波
吴继忠
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Deyang Sen Hua Xin Mstar Technology Ltd
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Deyang Sen Hua Xin Mstar Technology Ltd
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Priority to CN201710251519.0A priority Critical patent/CN106928816A/en
Publication of CN106928816A publication Critical patent/CN106928816A/en
Pending legal-status Critical Current

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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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/10Epoxy resins modified by unsaturated compounds
    • 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
    • C09D5/08Anti-corrosive paints
    • 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
    • C09D5/18Fireproof paints including high temperature resistant paints
    • 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20Diluents or solvents
    • 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/43Thickening agents
    • 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/47Levelling agents
    • 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • C09D7/62Additives non-macromolecular inorganic modified by treatment with other compounds
    • 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses high stability solvents type plastic coating, including following mass ratio component:10 20% acrylic resins, 55 60% epoxy novolac acrylic resins, 20% 30% organic solvent, 2 5% polyurethanes thickeners, 2 5% organobentonites, dispersant 5 10%, 10 15% stabilizers, 10 15% ternary chlorine vinegar resins;The stabilizer includes following components:Diglycidyl ether, castor oil acid calcium, barium oleate, phosphorous acid benzene triethyl, the methoxy benzophenone of 2 hydroxyl 4, color preserving agent.The present invention comprehensively improves the stability of coating by primarily serving the stabilizer of stabilization using good other additives combination of series of stable from various aspects such as fast light, high temperature resistant, chemicals-resistant burn into sedimentation stability, volatilization preventions, and ensure that coating has good mobility, a tack simultaneously, the film-strength of coating film forming is high, color is uniform, long lifespan.

Description

High stability solvents type plastic coating
Technical field
The present invention relates to a kind of plastic coating, and in particular to high stability solvents type plastic coating.
Background technology
Engineering plastic quickly grew in recent years, for every profession and trade provides plastic rubber substrate more wide range of choice, together When more strict requirements are also proposed to plastic coating.Traditional plastic coating, its applicable surface is narrow, is confined to a certain kind Or two kinds of grounds, combination property is poor.
The plastics such as PVC, PE, PP, PS, ABS can change colour in the presence of the factors such as heat, light, oxygen, intensity decreases, unless changed Become polymer structure in itself, cannot otherwise prevent the generation of this aging phenomenon, therefore, coating after coating, itself Possesses heat-resisting, fast light, resistance to oxidation property;Various coating be all by film forming matter (various resins), solvent, pigment, drier, Additive is constituted.Common paint generally makees solvent with gasoline, and epoxy iron red shop primer contains a small amount of dimethylbenzene, and dipping lacquer mainly contains toluene, Also there is a small amount of benzene.Spray painting (nitrate paint) and diluent (banana oil) in benzene containing volume or toluene, dimethylbenzene, prior art this A little harmful substances are readily volatilized, and heat resistance is bad, and heating easily promotes these harmful substances further to volatilize, influence people's It is healthy.
The content of the invention
The technical problems to be solved by the invention are the problems of traditional plastic coating stability difference, it is therefore intended that provide high steady Qualitative solvent-borne type plastic coating, solves the problems, such as paint stability.
The present invention is achieved through the following technical solutions:
High stability solvents type plastic coating, including following mass ratio component:
10-20% acrylic resins, 55-60% epoxy novolacs acrylic resin, 20%-30% organic solvents, 2-5% gather Ammonia type thickener, 2-5% organobentonites, dispersant 5-10%, 10-15% stabilizer, 10-15% ternary chlorine vinegar resins;
The stabilizer includes following components:Diglycidyl ether, castor oil acid calcium, barium oleate, phosphorous acid benzene triethyl, 2 hydroxyl -4- methoxy benzophenones, color preserving agent.The organic solvent includes butanone, methyl iso-butyl ketone (MIBK), butyl glycol ether, third One or more in glycol butyl ether, acetone.
Acrylic resin, epoxy novolac acrylic resin are main film forming matter in the present invention;Acrylic resin is preferable Physical and mechanical properties, weatherability, chemical-resistant and excellent water resistance, protect light colour retention it is high;After epoxy acrylate solidification Film has good adhesive force, chemical resistance and intensity, but there is also shortcoming, and such as cured film pliability is not enough, and fragility is big, Therefore, the pliability of film is improved using epoxy novolac acrylic resin;The viscosity or rheological characteristic of thickener energy adjusting coating, it is easy to Form uniform coating composition, coating composition is uniform, the stability of coating better, the stability of coating be embodied in film it is wear-resisting, The performances such as high temperature resistant, fast light and coating solution sedimentation, dispersion;Polyurethanes thickener and cellulose thickener and acrylic compounds Thickener is compared, and with good covering power and good levelability, relative molecular mass is low, and splashing is not likely to produce during roller coat, Can be associated with emulsion particle, will not produce volume limited flocculation, thus film can be made smooth, film has gloss higher Degree, hydrophobicity, washable stability, scratch resistance and biological stability are good;Organobentonite has good suspension and divides Property is dissipated, coating is difficult precipitation, be difficult layering, color is uniform, so that improve the stability of coating suspension, and brushing performance It is good, can form that thickness is uniform, the coating of flat smooth;Ternary chlorine vinegar resin be by by change chlorine vinegar comonomer component and with The modified ternary chlorine acid resin for obtaining, being modified with alkyd resin of two approach of other synthetic resin blending, can improve gloss And gloss retention, increase non-volatile content, can promote hardness, gloss and gloss retention after being modified with acrylic resin;2-glycidyl Ether, castor oil acid calcium, barium oleate, phosphorous acid benzene triethyl, 2 hydroxyl -4- methoxy benzophenones, the stabilizer of color preserving agent synthesis Main stabilization, high temperature resistant, fast light, resistance to oxidation, the coating stabilization agent that the present invention is provided, Ke Yiti are served in coating The ultraviolet tolerance of coating high, the coating color and luster in illumination 1~3 year is without substantially colour fading out of doors.The present invention is by using one The stabilizer that other additives combination of serial good stability primarily serves stabilization is rotten from fast light, high temperature resistant, chemicals-resistant The various aspects such as erosion, sedimentation stability, volatilization prevention comprehensively improve the stability of coating, and ensure that coating has simultaneously Good mobility, tack, the film-strength of coating film forming is high, color is uniform, long lifespan.
Described high stability solvents type plastic coating, also including diluent, the diluent includes following components:White appliances Oil, isopropanol, isobutanol, ethyl acetate, methyl iso-butyl ketone (MIBK), n-butyl acetate, DAA, propandiol butyl ether and unsaturation The silane alcohol base ammonium salt solution of acid carboxylate.Plastic coating is using preceding, it is necessary to be diluted with diluent;Unsaturated acid carboxylic acid The silane alcohol base ammonium salt solution of ester is the auxiliary agent for increasing electrostatic spraying coating electric conductivity, and diluent of the present invention is by organic solvent and increasing Plus the auxiliary agent composition of coating electric conductivity, not only chemical resistance is outstanding, and resistance to ethanol, while being especially suitable for electrostatic Apply.
Described high stability solvents type plastic coating, the 0.5-1% levelling agents also including mass ratio, the levelling agent is Polyether-modified polydimethylsiloxane.Advection agent improves the advection of coating.
Described high stability solvents type plastic coating, including following mass ratio component:10% acrylic resin, 60% Epoxy novolac acrylic resin, 30% organic solvent, 3% polyurethanes thickener, 2% organobentonite, dispersant 8%, 15% stabilizer, 15% ternary chlorine vinegar resin.The present invention has been carried out preferably to the constituent content of coating.
The present invention compared with prior art, has the following advantages and advantages:
1st, high stability solvents type plastic coating of the present invention is combined by using other good additives of series of stable Primarily serve the stabilizer of stabilization, from fast light, high temperature resistant, chemicals-resistant burn into sedimentation stability, volatilization prevention etc. each Aspect comprehensively improves the stability of coating;
2nd, high stability solvents type plastic coating of the present invention ensure that coating has good mobility, tack, coating The film-strength of film forming is high, color is uniform, long lifespan;
3rd, high stability solvents type plastic coating diluent of the present invention of the present invention is by organic solvent and increases coating conduction Property auxiliary agent composition, not only chemical resistance is outstanding, and resistance to ethanol, while being especially suitable for electrostatic spraying.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment, the present invention is made Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this The restriction of invention.
Embodiment 1
High stability solvents type plastic coating of the present invention, including following mass ratio component:
10-20% acrylic resins, 55-60% epoxy novolacs acrylic resin, 20%-30% organic solvents, 2-5% gather Ammonia type thickener, 2-5% organobentonites, dispersant 5-10%, 10-15% stabilizer, 10-15% ternary chlorine vinegar resins;
The stabilizer includes following components:Diglycidyl ether, castor oil acid calcium, barium oleate, phosphorous acid benzene triethyl,
2 hydroxyl -4- methoxy benzophenones, color preserving agent.The organic solvent includes butanone, methyl iso-butyl ketone (MIBK), second two One or more in alcohol butyl ether, propandiol butyl ether, acetone.Described high stability solvents type plastic coating, also including quality The 0.5-1% levelling agents of ratio, the levelling agent is polyether-modified polydimethylsiloxane.Advection agent improves the advection of coating.
Acrylic resin, epoxy novolac acrylic resin are main film forming matter in the present invention;Acrylic resin is preferable Physical and mechanical properties, weatherability, chemical-resistant and excellent water resistance, protect light colour retention it is high;After epoxy acrylate solidification Film has good adhesive force, chemical resistance and intensity, but there is also shortcoming, and such as cured film pliability is not enough, and fragility is big, Therefore, the pliability of film is improved using epoxy novolac acrylic resin;The viscosity or rheological characteristic of thickener energy adjusting coating, it is easy to Form uniform coating composition, coating composition is uniform, the stability of coating better, the stability of coating be embodied in film it is wear-resisting, The performances such as high temperature resistant, fast light and coating solution sedimentation, dispersion;Polyurethanes thickener and cellulose thickener and acrylic compounds Thickener is compared, and with good covering power and good levelability, relative molecular mass is low, and splashing is not likely to produce during roller coat, Can be associated with emulsion particle, will not produce volume limited flocculation, thus film can be made smooth, film has gloss higher Degree, hydrophobicity, washable stability, scratch resistance and biological stability are good;Organobentonite has good suspension and divides Property is dissipated, coating is difficult precipitation, be difficult layering, color is uniform, so that improve the stability of coating suspension, and brushing performance It is good, can form that thickness is uniform, the coating of flat smooth;Ternary chlorine vinegar resin be by by change chlorine vinegar comonomer component and with The modified ternary chlorine acid resin for obtaining, being modified with alkyd resin of two approach of other synthetic resin blending, can improve gloss And gloss retention, increase non-volatile content, can promote hardness, gloss and gloss retention after being modified with acrylic resin;2-glycidyl Ether, castor oil acid calcium, barium oleate, phosphorous acid benzene triethyl, 2 hydroxyl -4- methoxy benzophenones, the stabilizer of color preserving agent synthesis Main stabilization, high temperature resistant, fast light, resistance to oxidation, the coating stabilization agent that the present invention is provided, Ke Yiti are served in coating The ultraviolet tolerance of coating high, the coating color and luster in illumination 1~3 year is without substantially colour fading out of doors.The present invention is by using one The stabilizer that other additives combination of serial good stability primarily serves stabilization is rotten from fast light, high temperature resistant, chemicals-resistant The various aspects such as erosion, sedimentation stability, volatilization prevention comprehensively improve the stability of coating, and ensure that coating has simultaneously Good mobility, tack, the film-strength of coating film forming is high, color is uniform, long lifespan.
Embodiment 2
Based on embodiment 1, described high stability solvents type plastic coating, also including diluent, the diluent includes Following components:White spirit, isopropanol, isobutanol, ethyl acetate, methyl iso-butyl ketone (MIBK), n-butyl acetate, DAA, the third two The silane alcohol base ammonium salt solution of alcohol butyl ether and unsaturated acid carboxylate.Plastic coating is using preceding, it is necessary to be diluted with diluent; The silane alcohol base ammonium salt solution of unsaturated acid carboxylate is the auxiliary agent for increasing electrostatic spraying coating electric conductivity, and diluent of the present invention is It is made up of organic solvent and the auxiliary agent for increasing coating electric conductivity, not only chemical resistance is outstanding, and resistance to ethanol, while It is especially suitable for electrostatic spraying.
Embodiment 3
Based on above-described embodiment, the component of described high stability solvents type plastic coating, including following mass ratio:10% Acrylic resin, 60% epoxy novolac acrylic resin, 30% organic solvent, 3% polyurethanes thickener, 2% organic swelling Soil, dispersant 8%, 15% stabilizer, 15% ternary chlorine vinegar resin.The present invention has been carried out preferably to the constituent content of coating.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include Within protection scope of the present invention.

Claims (5)

1. high stability solvents type plastic coating, it is characterised in that the component including following mass ratio:10-20% acrylic acid trees Fat, 55-60% epoxy novolacs acrylic resin, 20%-30% organic solvents, 2-5% polyurethanes thickener, 2-5% are organic Bentonite, dispersant 5-10%, 10-15% stabilizer, 10-15% ternary chlorine vinegar resins;
The stabilizer includes following components:Diglycidyl ether, castor oil acid calcium, barium oleate, phosphorous acid benzene triethyl, 2 hydroxyls Base -4- methoxy benzophenones, color preserving agent.
2. high stability solvents type plastic coating according to claim 1, it is characterised in that described also including diluent Diluent includes following components:White spirit, isopropanol, isobutanol, ethyl acetate, methyl iso-butyl ketone (MIBK), n-butyl acetate, dipropyl The silane alcohol base ammonium salt solution of keto-alcohol, propandiol butyl ether and unsaturated acid carboxylate.
3. high stability solvents type plastic coating according to claim 2, it is characterised in that the also 0.5- including mass ratio 1% levelling agent, the levelling agent is polyether-modified polydimethylsiloxane.
4. high stability solvents type plastic coating according to claim 1 and 2, it is characterised in that the organic solvent bag Containing one or more in butanone, methyl iso-butyl ketone (MIBK), butyl glycol ether, propandiol butyl ether, acetone.
5. high stability solvents type plastic coating according to claim 1, it is characterised in that the group including following mass ratio Point:10% acrylic resin, 60% epoxy novolac acrylic resin, 30% organic solvent, 3% polyurethanes thickener, 2% have Machine bentonite, dispersant 8%, 15% stabilizer, 15% ternary chlorine vinegar resin.
CN201710251519.0A 2017-04-18 2017-04-18 High stability solvents type plastic coating Pending CN106928816A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201710251519.0A CN106928816A (en) 2017-04-18 2017-04-18 High stability solvents type plastic coating

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108598536A (en) * 2018-04-27 2018-09-28 芜湖天科生物科技有限公司 A kind of heat-resisting proton exchange membrane and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102070937A (en) * 2010-11-18 2011-05-25 苏州美亚美建筑涂料有限公司 Stabilizer for coating
CN102352157A (en) * 2011-09-15 2012-02-15 中华制漆(深圳)有限公司 Chemical-resistant plastic coating and using method and application thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102070937A (en) * 2010-11-18 2011-05-25 苏州美亚美建筑涂料有限公司 Stabilizer for coating
CN102352157A (en) * 2011-09-15 2012-02-15 中华制漆(深圳)有限公司 Chemical-resistant plastic coating and using method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108598536A (en) * 2018-04-27 2018-09-28 芜湖天科生物科技有限公司 A kind of heat-resisting proton exchange membrane and preparation method thereof

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Application publication date: 20170707

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