WO2019073953A1 - Film de modification de surface pour pièces intérieures/extérieures d'automobile - Google Patents

Film de modification de surface pour pièces intérieures/extérieures d'automobile Download PDF

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Publication number
WO2019073953A1
WO2019073953A1 PCT/JP2018/037541 JP2018037541W WO2019073953A1 WO 2019073953 A1 WO2019073953 A1 WO 2019073953A1 JP 2018037541 W JP2018037541 W JP 2018037541W WO 2019073953 A1 WO2019073953 A1 WO 2019073953A1
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parts
weight
photopolymerizable
urethane acrylate
automobile interior
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PCT/JP2018/037541
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English (en)
Japanese (ja)
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伊藤　賢哉
志野 佐藤
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Jnc株式会社
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Priority to JP2019548188A priority Critical patent/JPWO2019073953A1/ja
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/46—Polymerisation initiated by wave energy or particle radiation
    • C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
    • C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06—Polymers provided for in subclass C08G

Definitions

  • the present invention relates to a laminated film used as a molding material for automobile interior and exterior parts.
  • the number of parts constituting one car is said to be about 30,000.
  • engine parts are only about 10,000 of all parts, and about 20,000 other parts are in vehicles related to maintenance of vehicle structure, operation control, safety assurance, decoration, etc. It is an exterior part.
  • engine parts are expected to be replaced with only a hundred batteries and motor parts, but there is no noticeable change in the number of automobile interior and exterior parts common to both gasoline and electric vehicles It is expected to be. Therefore, regardless of the spread of electric vehicles, the demand for development of interior and exterior parts of automobiles does not decline.
  • Particularly visible automobile interior and exterior parts are, for example, instrument panels, seats, console boxes, sun visors, pillar trims, door trims, door trims, radiator grills, emblems, various garnishes, wheel caps, grille illuminations, covers inside and outside the vehicle .
  • so-called "decorative parts” such as instrument panels, emblems, radiator grills and garnishes are the parts most easily recognized by the driver and passersby, so individual designs and particularly high quality are required for each vehicle type.
  • Most automobile interior and exterior parts are mainly made of thin and bent plastic materials, and are manufactured by a method combining injection molding and injection molding and painting or laminate molding.
  • a method (in-mold molding) in which a fluid plastic material is injected into the inside of an injection molding machine and molded into a thin, bent shape is one of the basic methods.
  • a number of molding methods are known which are described in 2, 3 and 4.
  • Patent Documents 5 and 6 describe sunscreen cream resistance as a recent required performance for automobile interior and exterior parts. Because skin care products such as hand creams and sunscreen creams are frequently attached to the hands of car occupants and persons approaching cars, such skin care products are delivered after the car product is delivered to the purchaser. Adheres to the surface of automobile interior and exterior products with high frequency. For this reason, skin care products have become unignorable as the causative agent of the quality deterioration of automobile interior and exterior parts. Thus, in recent years, in addition to natural stimuli such as wind and rain and insects, as a factor causing deterioration in the quality of automobile interior and exterior products, it is also considered that the soiling by the user's contact. From these facts, it can be understood that the market demand level for automobile interior and exterior parts tends to increase more and more.
  • Patent Document 9 the present applicant has already proposed in Patent Document 9 to manufacture a surface-modified molded article by installing a previously molded antifouling film on the surface of the molded body by in-mold molding.
  • Patent Document 9 also describes that such a stain resistant film can also be expected to have a decorative function of a molded product, and an automobile component is mentioned as a decorative molded product.
  • Patent Document 9 has no specific proposal as to the material of the antifouling film suitable for surface modification / decoration of automobile parts, and any automobile component having surface modification / decoration fulfills market requirements There is also no description that verifies that it has a design. For this reason, the disclosure of Patent Document 9 only vaguely proposes a new means of surface modification and decoration of the interior and exterior parts of a car, and has not reached at all a technique for improving effective car parts.
  • the present invention is as follows.
  • (Invention 1) A surface modified film for automobile interior and exterior parts, wherein a surface protective layer is laminated on one side of an acrylic resin base film, The surface protective layer is a cured product of a photopolymerizable urethane acrylate composition
  • the photopolymerizable urethane acrylate composition contains (A) a photopolymerizable urethane acrylate mixture and (C) a photopolymerization initiator, and optionally contains (B) a filler,
  • the photopolymerizable urethane acrylate composition 60 parts by weight or more and 100 parts by weight of the (A) photopolymerizable urethane acrylate mixture is used per 100 parts by weight in total of the (A) photopolymerizable urethane acrylate mixture and the (B) filler.
  • the following (B) filler is present in a proportion of 0 parts by weight or more and 40 parts by weight or less
  • the (A) photopolymerizable urethane acrylate mixture is (a1) a photopolymerizable urethane acrylic polymer, (a2) a polyfunctional acrylate compound, (a3) a fluorine-containing photopolymerizable acrylic compound, (a4) Containing photopolymerizable acrylate oligomers having units derived from the fluorosilsesquioxane derivatives,
  • the component (a1) is 20 parts by weight or more and 87.99 parts by weight or less
  • the component (a2) is 1 part by weight or more and 25 parts by weight or less
  • per 100 parts by weight of the (A) photopolymerizable urethane acrylate mixture a3) is present in an amount of 1 to 10 parts by weight
  • the component (a4) is present in a proportion of 0.01 to 5 parts by weight.
  • each of R f 1 to R f 7 independently represents a linear or branched C 1 -C 20 chain in which at least one methylene may be replaced by oxygen.
  • a 1 is a group represented by the following formula (1-1) or the following formula (1-2).
  • Y 3 represents an alkylene having 2 to 10 carbon atoms
  • R 6 represents hydrogen, a linear or branched alkyl having 1 to 5 carbon atoms, or 6 to 10 carbon atoms It is aryl.
  • Y 4 is a single bond or alkylene having 1 to 10 carbon atoms.
  • the (A) photopolymerizable urethane acrylate mixture is 60 per 100 parts by weight in total of the (A) photopolymerizable urethane acrylate mixture and the (B) filler.
  • (Invention 3) A photopolymerizable acrylate oligomer having a unit derived from ⁇ -methacryloxypropyl hepta (trifluoropropyl) -T8-silsesquioxane represented by the following formula (1-3): The surface-modified film for automobile interior and exterior parts according to Invention 1 or 2.
  • Invention 4 A surface-modified film for automobile interior and exterior parts according to any one of Inventions 1 to 3, wherein the interior and exterior parts of the automobile are selected from an instrument panel, an emblem, a radiator grille and various garnishes.
  • invention 5 An interior / exterior component of an automobile, wherein at least a part of the surface is covered with the surface modified film for the interior / exterior component according to any one of Inventions 1-4.
  • modified film for automobile interior and exterior parts according to the present invention is oil-repellent, antifouling, water-repellent, sunscreen cream resistant, insect spray resistant, high surface hardness, transparency and transparency
  • modified film has a balance between moldability and formability.
  • the interior and exterior parts of an automobile having at least a part of the surface coated with the modified film of the present invention have oil repellency, stain resistance, water repellency, sunscreen cream resistance, insect spray resistance, high surface hardness, transparency, Transparency and formability are well balanced.
  • Example 1 which performed the moldability test (Evaluation (9) mentioned later) is shown.
  • the modified film of the comparative example 2 which performed the moldability test (Evaluation (9) mentioned later) is shown.
  • the modified film of the present invention comprises (A) a photopolymerizable urethane acrylate mixture and (C) a photopolymerization initiator, and further, if necessary, a cured photopolymerizable urethane acrylate composition containing a (B) filler.
  • the surface protection layer which consists of a thing is laminated
  • the material used for the said surface protective layer is explained in full detail.
  • the (A) photopolymerizable urethane acrylate composition used in the present invention is a main component of the above photopolymerizable urethane acrylate composition, and (a1) a photopolymerizable urethane acrylic polymer, (a2) a polyfunctional acrylate compound, (a3 And (4) a photopolymerizable acrylate oligomer having a unit derived from a fluorine-containing photopolymerizable acrylic compound and (a4) fluorosilsesquioxane derivative.
  • the components (a1), (a2), (a3) and (a4) will be described in detail.
  • the photopolymerizable urethane acrylic polymer is a reactive polymer which is widely used in industry.
  • the molecule has a rigid acrylic oligomer chain and a flexible urethane oligomer chain as essential constitutional units, and has a weight average molecular weight of several thousands to several hundreds of thousands.
  • a photopolymerizable urethane acrylic polymer is used for functionalization of a primer of a paint or the surface of a molded product, a solution-like photopolymerizable urethane acrylic polymer is applied to a target object, and then a coating film is exposed to ultraviolet light and the like. It is cured (photopolymerized) by light energy.
  • the acryloyl group present at the molecular terminal of the photopolymerizable urethane acrylic polymer reacts with other acryloyl groups in the reaction system to extend the molecular chain, resulting in the strength derived from the acrylic oligomer chain and the urethane oligomer chain.
  • a high molecular weight urethane acrylic polymer having flexibility derived from it adheres to the surface of the article to be coated. In general, the strength and flexibility of the coating film are controlled by selecting the molecular structure and molecular weight of the photopolymerizable urethane acrylic polymer.
  • photopolymerizable urethane acrylic polymers as described above which can be used as a coating or coating agent as the (a1) photopolymerizable urethane acrylic polymer constituting the (A) photopolymerizable urethane acrylate mixture of the present invention Can be used without restriction.
  • (a1) photopolymerizable urethane acrylic polymers for example, “Akrit 8 BR series” manufactured by Taisei Fine Chemical Co., Ltd., “UNIDIC” manufactured by DIC, “Hitaloid” manufactured by Hitachi Chemical Co., Ltd., “RUA series” manufactured by Subia Industrial Chemical Co., Ltd. It can be used.
  • a polyfunctional acrylate compound is a monomer having a plurality of photopolymerizable groups in one molecule obtained by the condensation reaction of a polyhydric alcohol and various acrylic acid compounds, and is industrially one of the photopolymerizable polymer materials. Are often used.
  • a photopolymerizable polymer such as a photopolymerizable urethane acrylate
  • a crosslinked structure can be introduced into the urethane acrylate molecule simultaneously with the extension of the urethane acrylate molecular chain. Therefore, a polyfunctional acrylate compound is used to control the molecular weight and the strength of a cured product of a photopolymerizable polymer such as a photopolymerizable urethane acrylic polymer.
  • the above-mentioned polyfunctional acrylate compounds can be used without restriction.
  • examples of such (a2) polyfunctional acrylate compounds include photocurable acrylates manufactured by Shin-Nakamura Chemical Co., Ltd., “KAYARAD” manufactured by Nippon Kayaku Co., Ltd., “Alonix (registered trademark)” manufactured by Toagosei Co., Ltd. Acrylate, polyfunctional acrylate manufactured by Kyoeisha Chemical Co., Ltd., etc. can be used.
  • the (A) photopolymerizable urethane acrylate composition used in the present invention further contains (a3) a fluorine-containing photopolymerizable acrylic compound in order to impart remarkable stain resistance and water repellency to the surface protective layer.
  • a3 fluorine-containing photopolymerizable acrylic compound of the present invention a fluorine atom or a fluorine-containing group is added to a photopolymerizable acrylic oligomer or monomer such as a photopolymerizable urethane acrylic polymer or polyfunctional acrylate compound as described above.
  • fluorine-containing acrylic polymers into which is introduced, can be used without limitation.
  • (a3) fluorine-containing photopolymerizable acrylic compound for example, "LE-600” manufactured by Toho Chemical Co., Ltd., “Viscoat 8 FM” manufactured by Osaka Organic Chemical Industry Co., Ltd., “Megafuck RS” manufactured by DIC, Kanto Electrification Co., Ltd.
  • a product such as "F-CLEAR (registered trademark)" can be used.
  • the photopolymerizable acrylate oligomer having a unit derived from the (a4) fluorosilsesquioxane derivative used in the present invention is a photopolymerizable oligomer which contributes to the improvement of the antifouling property developed by the present applicant.
  • the fluorosilsesquioxane derivative is a compound represented by the following formula (1).
  • R f 1 to R f 7 each independently represent a linear or branched fluorocarbon having 1 to 20 carbon atoms in which at least one methylene may be replaced by oxygen.
  • a 1 is a group represented by the following formula (1-1) or the following formula (1-2).
  • R f 1 to R f 7 in the above formula (1) are each independently 3,3,3-trifluoropropyl, 3,3,4,4,4-pentafluorobutyl, 3,3,3, 4,4,5,5,6,6,6-nonafluorohexyl, tridecafluoro-1,1,2,2-tetrahydrooctyl, heptadecafluoro-1,1,2,2-tetrahydrodecyl, heniko Subfluoro-1,1,2,2-tetrahydrododecyl, pentacosafluoro-1,1,2,2-tetrahydrotetradecyl, (3-heptafluoroisopropoxy) propyl, pentafluorophenylpropyl, pentafluorophenyl or ⁇ , ⁇ , ⁇ -trifluoromethylphenyl.
  • R f 1 to R f 7 in the above formula (1) are each independently 3,3,3-trifluoropropyl or 3,3,4,4,5,5,6,6,6 6-nonafluorohexyl.
  • Y 3 is alkylene having 2 to 10 carbon atoms, preferably alkylene having 2 to 6 carbon atoms
  • R 6 is hydrogen, or a straight or branched chain having 1 to 5 carbon atoms
  • Alkyl or aryl having 6 to 10 carbon atoms preferably hydrogen or alkyl having 1 to 3 carbon atoms.
  • Y 4 is a single bond or alkylene having 1 to 10 carbon atoms.
  • the above fluorosilsesquioxane derivative (1) is produced by the following method. First, the silicon compound (2) having a trifunctional hydrolyzable group represented by the following formula (2) is hydrolyzed and polycondensed in the presence of an alkali metal hydroxide in an oxygen-containing organic solvent, The compound (3) represented by following formula (3) is manufactured.
  • M is an alkali metal in said Formula (3), it will not be specifically limited.
  • alkali metal include lithium, sodium, potassium and cesium.
  • R in the above formulas (2) and (3) independently corresponds to one group selected from R f 1 to R f 7 in the above formula (1), and at least one methylene is replaced by oxygen C 1-20 linear or branched fluoroalkyl; C 6-20 fluoroaryl in which at least one hydrogen is replaced by fluorine or trifluoromethyl; or at least in aryl It is a fluoroarylalkyl having 7 to 20 carbon atoms in which one hydrogen is replaced by fluorine or trifluoromethyl, and X is a hydrolyzable group.
  • R in the above formulas (2) and (3) is each independently 3,3,3-trifluoropropyl, 3,3,4,4,4-pentafluorobutyl, 3,3,4,4, 4,5,5,6,6,6-Nonafluorohexyl, tridecafluoro-1,1,2,2-tetrahydrooctyl, heptadecafluoro-1,1,2,2-tetrahydrodecyl, helicosafluoro -1,1,2,2-tetrahydrododecyl, pentacosafluoro-1,1,2,2-tetrahydrotetradecyl, (3-heptafluoroisopropoxy) propyl, pentafluorophenylpropyl, pentafluorophenyl or ⁇ , ⁇ , It is ⁇ , ⁇ -trifluoromethylphenyl.
  • each R in the above formula (2) is independently 3,3,3,4,3-trifluoropropyl or 3,3,4,4,5,5,6,6,6-nonafluorohexyl is there.
  • the above fluorosilsesquioxane derivative (1) is obtained by reacting the above compound (3) with a compound (4) represented by the following formula (4).
  • the group X in the above formula (4) is a group represented by the above formula (1-1) or the above formula (1-2).
  • the fluorosilsesquioxane derivative (1) such as ⁇ -methacryloxypropyl hepta (trifluoropropyl) -T8-silsesquioxane is introduced into the coat layer, the antifouling function of the coat layer can be further improved .
  • the fluorosilsesquioxane derivative (1) is contained in a photopolymerizable acrylic compound having no urethane unit and containing a fluorine atom, it does not have another urethane unit directly but contains a fluorine atom.
  • the other urethane unit may be an oligomer prepared by previously crosslinking and / or polymerizing a photopolymerizable acrylic compound which does not have a urethane unit, or may be mixed with the photopolymerizable acrylic compound to be It may be mixed with photopolymerizable acrylic compounds containing no fluorine atom and containing a fluorine atom.
  • the fluorosilsesquioxane derivative (1) is copolymerized with one or more acrylate copolymer components selected from the above monofunctional acrylates, the above bifunctional acrylates, and the above multifunctional acrylates to obtain fluorosilsesqui
  • a polymer having an oxane derivative (1) unit is prepared in advance, and this polymer is used as part of a photopolymerizable acrylic compound having no urethane unit and containing a fluorine atom.
  • the proportion of the polymer having the fluorosilsesquioxane derivative (1) unit is 0.01 to 10 parts by weight, preferably 0.05 to 5 parts by weight with respect to 100 parts by weight of the urethane acrylate. Mix to make
  • compounds generally referred to as photocurable acrylic monomers, for example, monofunctional acrylates such as (meth) acrylic acid, (meth) acrylic acid ester and hydroxy group-containing (meth) acrylic acid ester (poly ( 2.)
  • Difunctional acrylates such as alkylene glycol di (meth) acrylate, trifunctional or higher polyfunctional acrylates such as pentaerythritol triacrylate, etc.
  • Such a copolymerization component may be an oligomer obtained by polymerizing a reactive compound containing the above photocurable acrylic monomer.
  • the ratio by weight of the components (a1), (a2), (a3) and (a4) depends on the balance between the antifouling property, water repellency, durability, chemical resistance and sunscreen resistance of the surface protective layer. Adjusted as appropriate. Preferably, 20 parts by weight or more and 87.99 parts by weight or less of the component (a1) and 1 parts by weight or more and 25 parts by weight or less of the component (a2) per 100 parts by weight of the (A) photopolymerizable urethane acrylate mixture
  • the component (a3) is present in an amount of 1 to 10 parts by weight, and the component (a4) is present in a proportion of 0.01 to 5 parts by weight.
  • a (B) filler in addition to the (A) photopolymerizable urethane acrylate mixture, a (B) filler can be further blended in the photopolymerizable urethane acrylate composition of the present invention.
  • an inorganic filler compounded for increasing, strengthening, glossing, imparting water repellency, imparting smoothness, imparting design property, etc. to plastic molding materials and paints can be used without limitation.
  • (B) fillers for example, silica, zirconium oxide, barium titanate, titanium oxide, alumina and the like can be used. Among these, so-called fine grade fillers are preferred in that they do not impair the appearance of the surface protective layer.
  • Filler "MHI” manufactured by Miku Miho Co., Ltd. and silica sol “MEK series” manufactured by Nissan Chemical Industries, Ltd. are preferable as the above-mentioned (B) filler in that the dispersibility in the photopolymerizable urethane acrylate composition is excellent.
  • the blending ratio of the (B) filler of the present invention is appropriately determined.
  • 60 parts by weight or more and 100 parts by weight or less of the (A) photopolymerizable urethane acrylate mixture is contained per 100 parts by weight of the (A) photopolymerizable urethane acrylate mixture and the (B) filler in total;
  • the filler is present in a proportion of 0 parts by weight or more and 40 parts by weight or less.
  • the (A) photopolymerizable urethane acrylate mixture is used per 100 parts by weight of the (A) photopolymerizable urethane acrylate mixture and the (B) filler in total;
  • the filler is present in a proportion of 10 parts by weight or more and 40 parts by weight or less.
  • the photopolymerizable urethane acrylate composition of the present invention further comprises (C) a photopolymerization initiator.
  • the kind and compounding quantity of said (C) photoinitiator are not restrict
  • As the photopolymerization initiator (C) of the present invention various other commercial products manufactured by BASF "IRGACURE” (currently sold as “Omnirad” manufactured by IGM Resins) can be used.
  • Examples of the (C) photopolymerization initiator include polymers of hydroxyketones such as oligo ⁇ 2-hydroxy-2-methyl-1-phenylpropanone ⁇ , 1-hydroxydicyclohexyl phenyl ketone, 2-hydroxy-2 -Methyl-1-phenylpropan-1-one, 2,2-dimethoxy-1,2-diphenylethane-1-one, 1- ⁇ 4 (2-hydroxyethoxy) phenyl ⁇ 2-hydroxy-2-methyl-1 -Propane 1-one, 2,4,6-trimethyl benzoyl diphenyl phosphine oxide, bis (2,4,6 trimethyl benzoyl) phenyl phosphine oxide, etc. can be used.
  • hydroxyketones such as oligo ⁇ 2-hydroxy-2-methyl-1-phenylpropanone ⁇ , 1-hydroxydicyclohexyl phenyl ketone, 2-hydroxy-2 -Methyl-1-phenylpropan-1-one, 2,2-dimethoxy-1,
  • additives In the photopolymerizable urethane acrylate composition, in addition to the components (A), (B) and (C), an antioxidant, a weathering stabilizer, a color-matching agent, and the like, which are generally compounded in paint and film materials Additives such as diluents can also be further formulated.
  • the compounding amount is not limited as long as the function of the surface protective layer is not reduced.
  • [Surface protection layer] Curing of a photopolymerizable urethane acrylate composition comprising the above-described (A) photopolymerizable urethane acrylate mixture, (B) filler, (C) photopolymerization initiator, and other additives which may be optionally blended
  • An object forms the surface protection layer of the present invention.
  • the surface protective layer of the present invention is laminated on one side of an acrylic resin base film.
  • the acrylic resin base film used in the present invention is a single layer or multilayer film or sheet mainly composed of an acrylic resin.
  • an acrylic resin which comprises the said acrylic resin base film the thing well-known as a material of an automobile interior and exterior part can be used without a restriction
  • an acrylic resin base film for example, "Acriprene (registered trademark)” manufactured by Mitsubishi Chemical Co., Ltd., “Sunduren” manufactured by Kaneka Co., Ltd., “Parapure”” Komogurasu” manufactured by Kuraray Co., Ltd., etc. can be used.
  • the thickness of the acrylic resin base film of the present invention is not particularly limited, but is usually 100 ⁇ m to 500 ⁇ m, preferably 200 ⁇ m to 400 ⁇ m.
  • the solution-like photopolymerizable urethane acrylate composition is coated on one side of such an acrylic resin base film so that a coating thickness of usually 1 ⁇ m to 30 ⁇ m, preferably 1 ⁇ m to 20 ⁇ m can be obtained,
  • a cured product of the photopolymerizable urethane acrylate composition in the form of a solution is generally formed on one surface of the acrylic resin base film as a surface protective layer of 1 ⁇ m to 30 ⁇ m, preferably 1 ⁇ m to 20 ⁇ m. Be done.
  • the surface protective layer In the formation of the surface protective layer, first, a photopolymerizable urethane acrylate containing the above-mentioned (A) photopolymerizable urethane acrylate mixture and (C) a photopolymerization initiator and, if necessary, (B) a filler The resulting solution is prepared by diluting the composition with a solvent as needed. Next, this solution is applied to one surface of the above-mentioned acrylic resin base film, and after drying under appropriate conditions, the coated surface is irradiated with light energy rays such as ultraviolet rays to cure the above-mentioned photopolymerizable urethane acrylate composition. . Thus, the modified film of the present invention is obtained.
  • the method of diluting the photopolymerizable urethane acrylate composition, the method of applying the photopolymerizable urethane acrylate composition in solution, the irradiation conditions of the light energy ray, the method of drying the cured product of the photopolymerizable urethane acrylate composition The conditions are appropriately selected from known conditions for handling the photopolymerizable paint.
  • the modified film of the present invention On the surface protective layer side of the modified film of the present invention, all of antifouling property, water repellency, durability, chemical resistance and sunscreen cream resistance derived from the surface protective layer of the present invention appear in a well-balanced manner. Moreover, the modified film of the present invention is also suitable for relatively complicated shapes. Such a modified film of the present invention is effective for surface modification of automobile interior and exterior parts.
  • the automobile interior and exterior parts of the present invention are automobile interior and exterior parts coated with at least a part of the surface with the modified film of the present invention.
  • a method of manufacturing the interior and exterior parts of a car according to the present invention a method capable of adhering the material of the interior and exterior parts of a car mainly made of plastic to the above-mentioned modified film in a predetermined shape can be used without limitation.
  • the modified film is placed in a mold, and film insert molding in which resin is filled by injection molding, laminate injection press molding, the reformed film is preformed, and then placed in the mold for injection
  • film insert molding in which resin is filled by injection molding, laminate injection press molding, the reformed film is preformed, and then placed in the mold for injection
  • methods include film-in-mold molding in which a resin is filled by molding, and methods in which these molding methods are combined with two-color molding, sandwich molding, and the like.
  • the modified film of the present invention is effective for the entire interior and exterior parts of automobiles.
  • various automotive vehicles such as instrument panels, seats, console boxes, sun visors, pillar trims, door trims, door trims, radiator grills, emblems, various garnishes, wheel caps, grille illumination, covers inside and outside the vehicle Interior and exterior parts can be manufactured.
  • Particularly high value as such an automobile exterior part of the present invention is antifouling property, water repellency, durability, chemical resistance, sunscreen resistance since it is used under an environment where human beings frequently touch with fingers.
  • Instrument panels, emblems, radiator grills, and various garnishes are required for all creaminess.
  • the modified film of the present invention was produced by the following procedure. [Synthesis of ⁇ -methacryloxypropyl hepta (trifluoropropyl) -T8-silsesquioxane] Trifluoropropyltrimethoxysilane (100 g), THF (500 mL), deionized water (10.5 g) and sodium hydroxide (sodium hydroxide) in a 1 L four-necked flask fitted with a reflux condenser, thermometer and dropping funnel 7.9 g) was charged and heated with an oil bath from room temperature to a temperature at which THF was refluxed while stirring with a magnetic stirrer. Stirring was continued for 5 hours from the start of reflux to complete the reaction. Thereafter, the flask was taken out of the oil bath, allowed to stand at room temperature overnight, and then set in the oil bath again, and heated and concentrated under constant pressure until solids were precipitated.
  • the precipitated product was filtered off using a pressure filter equipped with a membrane filter with a pore size of 0.5 ⁇ m. Next, the obtained solid was washed once with THF, and dried at 80 ° C. for 3 hours in a vacuum dryer to obtain 74 g of a colorless powdery solid.
  • the mixture was concentrated by a rotary evaporator until a viscous solid was precipitated, 260 g of methanol was added, and the mixture was stirred until it became powdery.
  • the powder was filtered using a pressure filter equipped with 5 ⁇ m filter paper and dried in a vacuum oven at 65 ° C. for 3 hours to obtain 41.5 g of a colorless powdery solid.
  • the obtained solid was subjected to GPC and 1 H-NMR measurement to confirm the formation of ⁇ -methacryloxypropyl hepta (trifluoropropyl) -T8-silsesquioxane represented by the following formula (5).
  • the polymer which it has was used.
  • silica sol “MEK-ST-UP” manufactured by Nissan Chemical Industries, Ltd. was used.
  • C "Omnirad 127" manufactured by IGM Resins, Inc. was used as a photopolymerization initiator.
  • IPA isopropyl alcohol
  • the above components (a1), (a2), (a3), (a4), (B) and (C) are selected as shown in Table 1, and the respective components are mixed in the amount ratio shown in Table 1
  • a coating liquid containing the photopolymerizable urethane acrylate composition well dispersed at a concentration of 25% by weight was obtained.
  • Oil Repellency The oil repellency of the surface protective layer of the obtained modified film with respect to a commercially available black oil-based ink was evaluated. The degree to which the black oil-based ink was repelled when a line was drawn on the surface of the surface protective layer of the resulting modified film with a Sharpie marker was determined according to the following criteria.
  • the ink is repellent and the locus of the ink looks like a dot.
  • a commercially available sunblock cream (Neutrogena ULTRA SHEER SUNSCREEN SPF 45) in an amount of 0.5 g / 100 cm 2 on the surface protection layer of a 50 mm ⁇ 50 mm test piece cut from the obtained modified film It applied to uniform thickness. Two sheets of white cloth and aluminum plate were stacked on the surface to which the sunscreen cream adhered, and a weight of 500 g was placed on the aluminum plate. In this state, the entire test article including the modified film was allowed to stand and heated in a thermostat at 55 ° C. for 4 hours. After heating, the weight, aluminum plate and white cloth were removed. The surface protective layer was rubbed with a non-woven cloth impregnated with a neutral detergent to remove the sunscreen attached to the surface protective layer. The condition of the surface protective layer from which the sunscreen cream was removed was determined according to the following criteria.
  • Insect repellent spray resistance A commercially available insect repellent spray (OFF! Deep Woods (R) Sportsman with 25% DEET) on the surface protection layer of a 50 mm x 50 mm test piece cut from the obtained modified film. 0.05 g was evenly distributed. Two sheets of white cloth and an aluminum plate were stacked on the surface on which the insect spray was attached. In this state, the entire test product including the modified film was allowed to stand at room temperature (23 ° C.) for 24 hours. After this, the aluminum plate and the white cloth were removed. The state of the surface protective layer at this time was determined according to the following criteria.
  • the hardness of the surface protective layer was measured by pencil hardness measurement in accordance with JIS K 5600.
  • the haze (H 1 ) of a 120 mm ⁇ 70 mm test piece cut off from the obtained modified film was measured using a haze meter NDH-5000 type manufactured by Nippon Denshoku Kogyo Co., Ltd.
  • the test piece for which the haze H 1 was measured was placed in an IMC-1557 abrasion resistance tester C manufactured by Imoto Machinery Co., Ltd., and the surface protective layer was subjected to abrasion treatment.
  • the wear condition was # 0000 steel wool, load 400 g, 15 reciprocations.
  • the haze (H 2 ) of the test piece after the abrasion treatment was measured by the same method as the measurement of the haze H 1 before the abrasion treatment.
  • the degree of change in transparency ( ⁇ H) shown in the following equation was determined from the values of H 1 and H 2 . The smaller the ⁇ H, the higher the scratch resistance.
  • the area of the modified film is 200% using a hemispherical mold having diamond-shaped filaments
  • the modified film was vacuum and pressure formed into a dome-like thin shape under the conditions of The surface protective layer of the obtained dome-shaped modified film was visually observed, and the vacuum and pressure-forming property of the modified film was determined based on the following criteria.
  • FIG. 1 shows the surface of a dome-shaped molded body obtained from the modified film of Example 1. Diamond-shaped filaments well fitted to the mold shape are reproduced on the surface of the molded body. The portion without striae forms a smooth curved surface.
  • FIG. 2 shows the surface of a dome-shaped compact obtained from the modified film of Comparative Example 2. Irregularities, wrinkles and cracks occur on the entire surface.
  • the modified films prepared in Example 1, Example 2, and Example 3 have oil repellency, stain resistance, water repellency, sunscreen cream resistance, insect spray resistance, high surface hardness. It has a good balance of transparency and moldability, and is suitable as a surface protection member for automobile interior and exterior parts.
  • the modified films produced in Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4 in which the material of the surface protective layer is changed have oil repellency, stain resistance, water repellency, sunscreen cream resistance, Any one or more of the insect spray resistance, the surface hardness, the transparency, and the formability are greatly impaired, and the practicability as a surface protection member for automobile interior and exterior parts is lacking.
  • the modified film of the present invention is well-balanced in oil repellency, stain resistance, water repellency, sunscreen cream resistance, insect spray resistance, high surface hardness, transparency / transparency, and moldability.
  • Such a modified film of the present invention is useful as a surface protection member such as an instrument panel, an emblem, a radiator grill, various garnish, etc., as a molded article represented by automobile interior and exterior parts required to have high functionality and design. is there. It is expected that the present invention makes it possible to manufacture automobile interior and exterior parts that can withstand the recent and more sophisticated demands.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Abstract

Le problème décrit par la présente invention est de fabriquer des pièces intérieures/extérieures d'automobile qui présentent une fonctionnalité et des caractéristiques de conception supérieures. La solution selon l'invention porte sur un film de modification de surface pour pièces intérieures/extérieures d'automobile, ledit film étant obtenu par stratification d'une couche de protection de surface sur une surface d'un film de base en résine acrylique. La couche de protection de surface est le produit durci d'une composition d'uréthane-acrylate photopolymérisable. La composition d'uréthane-acrylate photopolymérisable comprend : (A) un mélange d'uréthane-acrylate photopolymérisable ; (C) un initiateur de photopolymérisation ; et, selon les besoins, (B) une charge. Le constituant (A) comprend : (a1) un polymère d'uréthane-acrylique photopolymérisable ; (a2) un composé acrylate polyfonctionnel ; (a3) un composé acrylique photopolymérisable contenant du fluor ; et (a4) un oligomère acrylate photopolymérisable comprenant un motif dérivé de fluoro-silsesquioxane.
PCT/JP2018/037541 2017-10-11 2018-10-09 Film de modification de surface pour pièces intérieures/extérieures d'automobile WO2019073953A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022137768A1 (fr) * 2020-12-25 2022-06-30 株式会社カネカ Stratifié et utilisation de celui-ci

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012176742A1 (fr) * 2011-06-20 2012-12-27 Jnc株式会社 Film de transfert pour moulage dans un moule et procédé pour sa production
WO2014097876A1 (fr) * 2012-12-19 2014-06-26 Jnc株式会社 Film de transfert pour le moulage dans un moule, procédé permettant de produire un corps moulé dans un moule et corps moulé
WO2015133517A1 (fr) * 2014-03-05 2015-09-11 Jnc株式会社 Agent de revêtement, film durci, stratifié, produit moulé
WO2015133535A1 (fr) * 2014-03-05 2015-09-11 グンゼ株式会社 Stratifié
WO2016159023A1 (fr) * 2015-03-31 2016-10-06 Jnc株式会社 Agent de revêtement, film de revêtement, stratifié, et article à surface protégée

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012176742A1 (fr) * 2011-06-20 2012-12-27 Jnc株式会社 Film de transfert pour moulage dans un moule et procédé pour sa production
WO2014097876A1 (fr) * 2012-12-19 2014-06-26 Jnc株式会社 Film de transfert pour le moulage dans un moule, procédé permettant de produire un corps moulé dans un moule et corps moulé
WO2015133517A1 (fr) * 2014-03-05 2015-09-11 Jnc株式会社 Agent de revêtement, film durci, stratifié, produit moulé
WO2015133535A1 (fr) * 2014-03-05 2015-09-11 グンゼ株式会社 Stratifié
WO2016159023A1 (fr) * 2015-03-31 2016-10-06 Jnc株式会社 Agent de revêtement, film de revêtement, stratifié, et article à surface protégée

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022137768A1 (fr) * 2020-12-25 2022-06-30 株式会社カネカ Stratifié et utilisation de celui-ci

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TW201922503A (zh) 2019-06-16

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