WO2016035843A1 - Décapant pour matériau de revêtement durcissable par rayonnement ultraviolet - Google Patents

Décapant pour matériau de revêtement durcissable par rayonnement ultraviolet Download PDF

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Publication number
WO2016035843A1
WO2016035843A1 PCT/JP2015/075034 JP2015075034W WO2016035843A1 WO 2016035843 A1 WO2016035843 A1 WO 2016035843A1 JP 2015075034 W JP2015075034 W JP 2015075034W WO 2016035843 A1 WO2016035843 A1 WO 2016035843A1
Authority
WO
WIPO (PCT)
Prior art keywords
release agent
ether
examples
uncured
diethylene glycol
Prior art date
Application number
PCT/JP2015/075034
Other languages
English (en)
Japanese (ja)
Inventor
和哉 永冨
敦 廣田
Original Assignee
横浜油脂工業株式会社
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 横浜油脂工業株式会社 filed Critical 横浜油脂工業株式会社
Publication of WO2016035843A1 publication Critical patent/WO2016035843A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D9/00—Chemical paint or ink removers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/26—Processing photosensitive materials; Apparatus therefor
    • G03F7/42—Stripping or agents therefor

Definitions

  • the present invention relates to an ultraviolet curable paint remover that removes an uncured ultraviolet curable paint adhering to a product or a coating jig.
  • UV curable paints are used in various applications because they are suitable for coatings that are sensitive to heat, such as plastics, and are easy to miniaturize coating equipment. .
  • UV-curable paints examples include automotive parts, home appliances, electronic equipment, and furniture. If a coating failure occurs during the coating of these products, the uncured UV curable paint is peeled off, and the product can be reused without being discarded by returning the product to the state before coating.
  • Uncured refers to the state in which the resin component in the UV curable paint is not completely cured, and in practice, only a lower UV amount is irradiated than the recommended curing conditions for the target UV curable paint. Point to.
  • hanger jigs, masking jigs, etc. can be cited as painting jigs used when painting products. These coating jigs also adhere to the UV curable paint during coating, and if they are stacked, it leads to defective coating or masking of the product. Therefore, it is necessary to periodically remove the uncured UV curable coating.
  • the paint is peeled off using a release agent such as jet cleaning, rocking cleaning, ultrasonic cleaning, bubbling cleaning, brushing cleaning and shower cleaning.
  • a release agent such as jet cleaning, rocking cleaning, ultrasonic cleaning, bubbling cleaning, brushing cleaning and shower cleaning.
  • Examples of conventional release agents include release agents containing a halogen-based solvent such as methylene chloride and strong alkaline (pH 11 or higher) release agents. Since these release agents have a very heavy load on the human body and the environment and are difficult to handle and dispose of, there are many users who restrict their use. On the other hand, water-based release agents that are not strongly alkaline have low needs on the human body and the environment, and are easy to handle and dispose of.
  • a halogen-based solvent such as methylene chloride and strong alkaline (pH 11 or higher) release agents. Since these release agents have a very heavy load on the human body and the environment and are difficult to handle and dispose of, there are many users who restrict their use.
  • water-based release agents that are not strongly alkaline have low needs on the human body and the environment, and are easy to handle and dispose of.
  • An example of an aqueous release agent is an aqueous release agent for coatings to which a corrosion inhibiting additive is added so as not to generate rust on an iron-based material even when used at a high temperature, a monovalent or divalent alcohol solvent, water
  • An aqueous release agent for coating films containing gluconate as an additive for inhibiting corrosion has been proposed (Patent Document 1).
  • the release agent If the release agent is solidified, it loses its function as a release agent, so frequent replacement of the release agent is required. Moreover, since it becomes impossible to take out the release agent from the peeling tank, there has been a problem that a large maintenance or replacement of the peeling tank is required.
  • This invention makes it a subject to provide the peeling agent which can peel an uncured ultraviolet curable coating material over a long period of time, without solidifying in an indoor use environment, without affecting a peeling tank.
  • a release agent for an uncured UV-curable coating material containing a polymerization inhibitor does not solidify in an indoor use environment, and is a peeling tank.
  • the present invention has been found to be a release agent that can release an uncured ultraviolet curable paint over a long period of time without affecting the above.
  • the present invention relates to the following.
  • An uncured UV curable coating release agent containing a polymerization inhibitor containing a polymerization inhibitor.
  • the uncured release agent for ultraviolet curable paint according to [1] which contains an alcohol solvent.
  • the uncured UV curable release agent for paints according to [1] or [2] which contains water and has a pH of 3 to less than 11.
  • the present invention it is possible to provide a release agent capable of removing an uncured ultraviolet curable paint for a long period of time without being solidified in an indoor use environment and without affecting the release tank.
  • the polymerization inhibitor in the release agent of the present invention is blended to prevent the release agent from solidifying by causing a polymerization reaction in the release agent from which the uncured ultraviolet curable coating material has been released.
  • Polymerization inhibitors include hydroquinone, methylhydroquinone, ethylhydroquinone, t-butylhydroquinone, hydroquinone monomethyl ether (p-methoxyphenol), hydroquinone monoethyl ether, catechol, methyl catechol, ethyl catechol, t-butyl catechol, catechol monomethyl ether (O-methoxyphenol), phenols such as catechol monoethyl ether, quinones such as benzoquinone, tolquinone (methylbenzoquinone), xyloquinone (dimethylbenzoquinone), nitro such as nitromethane, nitroethane, nitroethane, nitropropane, nitrobutane, nitro
  • At least one kind is included, and two or more kinds may be used in combination. More preferred are phenols and quinones, and further preferred are hydroquinone, methylhydroquinone, hydroquinone monomethyl ether (p-methoxyphenol), and benzoquinone.
  • the blending amount of the polymerization inhibitor is 0.01 to 10% by weight of the entire release agent. This is because 0.01% by weight or more is preferable from the viewpoint of polymerization prevention, and 10% by weight or less is preferable from the viewpoint of paint peelability and economy. More preferably, it is 0.05 to 8% by weight, and still more preferably 0.1 to 5% by weight.
  • the alcohol solvent in the release agent of the present invention is blended to dissolve or swell the uncured UV curable paint.
  • alcohol solvents include aliphatic alcohols such as methyl alcohol, ethyl alcohol, propyl alcohol, and butyl alcohol, benzyl alcohol, 2-methylbenzyl alcohol, 3-methylbenzyl alcohol, 4-methylbenzyl alcohol, ⁇ -methylbenzyl alcohol, Aromatic alcohols such as phenethyl alcohol, glycols such as ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, ethylene glycol monoamyl ether , Ethylene glycol monohexyl ether, ethylene glycol monophenyl Ether, ethylene glycol monobenzyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether
  • At least one kind is included, and two or more kinds may be used in combination. More preferably aromatic alcohol, glycol ether, glycol diether, and more preferably benzyl alcohol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monohexyl ether, diethylene glycol monophenyl ether, Diethylene glycol monobenzyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dibutyl ether.
  • the blending amount of the alcohol solvent is 10 to 99.99% by weight of the entire release agent. This is because 10% by weight or more is preferable from the viewpoint of paint peelability. More preferably, it is 20 to 99.95% by weight, and still more preferably 30 to 99.9% by weight.
  • the water in the release agent of the present invention is blended to reduce flammability.
  • examples of water include tap water, distilled water, purified water, deionized water, pure water, and ultrapure water, and any of them may be used.
  • the amount of water is preferably 3 to 90% by weight based on the entire release agent. This is because 3% by weight or more is preferable from the viewpoint of flammability, and 90% by weight or less is preferable from the viewpoint of paint peelability. More preferably, it is 5 to 80% by weight, and still more preferably 8 to 70% by weight. Further, a release agent using an alcohol solvent without blending water may be used.
  • a pH adjusting agent may be added to the release agent of the present invention. This is blended to adjust the pH of the release agent.
  • pH adjusters include inorganic acids such as hydrochloric acid and phosphoric acid, organic acids such as acetic acid, malic acid, citric acid and 2-ethylhexanoic acid, inorganic alkalis such as sodium hydroxide and potassium hydroxide, monoethanolamine, and monoethanolamine.
  • Organic alkalis such as isopropanolamine, diethanolamine, and triethanolamine can be exemplified. Among these, at least 1 type may be mix
  • a surfactant may be added to the release agent of the present invention. This is blended to improve the penetration and wetting action of the alcohol solvent and to promote the dissolution and swelling of the uncured UV curable paint.
  • Surfactants include hydrocarbon-based interfaces such as alkyl sulfosuccinates, alkyl benzene sulfonates, alkyl sulfate esters, alkyl naphthalene sulfonates, sulfo fatty acid ester salts, polyoxyethylene alkyl phenyl ethers, polyoxyethylene alkyl ethers, etc.
  • silicone surfactants such as an activator, polyether-modified silicone, and polyglycerin-modified silicone, and fluorine-based surfactants such as perfluoroalkane carboxylic acid and perfluoroalkane sulfonic acid.
  • silicone surfactants such as an activator, polyether-modified silicone, and polyglycerin-modified silicone
  • fluorine-based surfactants such as perfluoroalkane carboxylic acid and perfluoroalkane sulfonic acid.
  • at least 1 type may be mix
  • the release agent of the present invention may contain various additives that are added to conventional release agents.
  • additives include viscosity modifiers, antioxidants, ultraviolet absorbers, rust inhibitors, preservatives, colorants, and fragrances.
  • the pH of the release agent of the present invention is preferably 3 to less than 11 in consideration of safety to the human body. More preferably, the pH is 4 to 10, still more preferably 5 to 9, and still more preferably 6 to 8.
  • the release agent of the present invention has a relatively low volatility of each component, there is little composition variation, and good release properties can be exhibited over a long period of time. In addition, since it does not contain components that have a large effect on the human body, it is safe in terms of work operations.
  • the stripping method using the stripping agent of the present invention may be any method as long as the stripping agent of the present invention can be brought into contact with an object to be stripped. Examples of the contact method include dipping, showering, spraying, coating, and the like.
  • the use temperature of the release agent is preferably 10 to 100 ° C. in consideration of paint release properties. More preferably, it is 20 to 90 ° C, and further preferably 30 to 80 ° C.
  • the object to be peeled of the present invention may be any object as long as it is coated with an uncured ultraviolet curable paint and has the paint adhered thereto.
  • Examples of the objects to be peeled include automobile parts, home appliances, electronic devices, furniture and other products, hanger jigs, and coating jigs such as masking jigs.
  • the ultraviolet curable coating material may be any coating material as long as it undergoes a polymerization reaction upon irradiation with ultraviolet rays to form a cured coating film.
  • Examples thereof include an unsaturated polyester resin type in which a photopolymerization initiator is added to a mixture of unsaturated polyester and styrene, and an acrylic resin type in which a photopolymerization initiator is added to a mixture of acrylic monomers and acrylic oligomers.
  • the blending components are as follows.
  • Alcohol-based solvent 1 Diethylene glycol monobutyl ether (KH Neochem Co., Ltd. product, butisenol 20)
  • Alcohol solvent 2 benzyl alcohol (Tokyo Ohka Kogyo Co., Ltd. product, benzyl alcohol)
  • Alcohol solvent 3 Diethylene glycol monoethyl ether (Nippon Shokubai Co., Ltd., Seafosol DG) Water: Deionized water
  • Polymerization inhibitor 1 Hydroquinone (Wako Pure Chemical Industries, Ltd.
  • Polymerization inhibitor 2 Methylhydroquinone (product of Wako Pure Chemical Industries, Ltd., methylhydroquinone)
  • pH adjuster 1 2-ethylhexanoic acid (KH Neochem Co., Octylic acid) and triethanolamine (Nippon Shokubai Co., Ltd., triethanolamine-S) are mixed in appropriate amounts.
  • pH adjuster 2 Citric acid (Showa Kako Co., Ltd.) Company product, citric acid (anhydrous)
  • pH adjuster 3 Monoethanolamine (Nippon Shokubai Co., Ltd., Monoethanolamine)
  • Example 1 to 4 correspond to the release agent containing a polymerization inhibitor in Comparative Example 1, and Example 5 and Comparative Example 2, Example 7 and Comparative Example 3, Example 8 and Comparative Example 4, and Example 9
  • the comparative example 5 has the same relationship. Comparing each of the examples and the comparative example, the polymerization prevention property was improved in the examples. Further, from the results of Examples 1 to 9, the polymerization preventing property was good regardless of the type of alcohol solvent, the presence or absence of water, and the pH.
  • Examples 5 and 9 had a peeling time of 15 minutes, Examples 1 to 4, 6, and 8 were 20 minutes, and Example 7 was 25 minutes.
  • the peeling time of Comparative Examples 2 and 5 was 15 minutes
  • Comparative Examples 1 and 4 were 20 minutes
  • Comparative Example 3 was 25 minutes.
  • the stripping time was the same, and even when a polymerization inhibitor was contained, the stripping property was not affected. From the results of Examples 1 to 9, the peelability was good regardless of the type of alcohol solvent, the presence or absence of water, and the pH.
  • an uncured UV curable coating release agent containing a polymerization inhibitor does not solidify in an indoor use environment, does not affect the peeling tank, and is uncured UV cured over a long period of time.
  • a release agent capable of peeling the mold paint can be provided.

Abstract

L'invention concerne un décapant qui, lors de l'élimination de matériaux de revêtement durcissables par rayonnement ultraviolet non durcis, ne se solidifie pas dans un environnement d'utilisation intérieur, n'exerce aucune influence sur le réservoir d'élimination, et peut être utilisé pour éliminer des matériaux de revêtement durcissables par ultraviolet non durcis sur une longue période. Ledit décapant pour matériaux de revêtement durcissables par rayonnement ultraviolet non durcis contient un inhibiteur de polymérisation.
PCT/JP2015/075034 2014-09-04 2015-09-03 Décapant pour matériau de revêtement durcissable par rayonnement ultraviolet WO2016035843A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014180460A JP2017197589A (ja) 2014-09-04 2014-09-04 紫外線硬化型塗料用剥離剤
JP2014-180460 2014-09-04

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WO2016035843A1 true WO2016035843A1 (fr) 2016-03-10

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JP (1) JP2017197589A (fr)
WO (1) WO2016035843A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7264087B2 (ja) * 2020-02-28 2023-04-25 日信化学工業株式会社 塗膜剥離剤及び該塗膜剥離剤を用いた剥離方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073319A1 (fr) * 2001-03-13 2002-09-19 Nagase Chemtex Corporation Composition de decapage de resine
JP2003530482A (ja) * 2000-04-12 2003-10-14 イーケーシー テクノロジー リミテッド チタン腐食の抑制
JP2010514875A (ja) * 2007-01-05 2010-05-06 ビーエーエスエフ ソシエタス・ヨーロピア 有機被覆の除去のための組成物及び方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003530482A (ja) * 2000-04-12 2003-10-14 イーケーシー テクノロジー リミテッド チタン腐食の抑制
WO2002073319A1 (fr) * 2001-03-13 2002-09-19 Nagase Chemtex Corporation Composition de decapage de resine
JP2010514875A (ja) * 2007-01-05 2010-05-06 ビーエーエスエフ ソシエタス・ヨーロピア 有機被覆の除去のための組成物及び方法

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