CN1935917B - Bottom coating composition, and its preparing method and multilayer coat - Google Patents

Bottom coating composition, and its preparing method and multilayer coat Download PDF

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Publication number
CN1935917B
CN1935917B CN 200510105310 CN200510105310A CN1935917B CN 1935917 B CN1935917 B CN 1935917B CN 200510105310 CN200510105310 CN 200510105310 CN 200510105310 A CN200510105310 A CN 200510105310A CN 1935917 B CN1935917 B CN 1935917B
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China
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primer composition
diluent
resin
content
photoinitiator
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CN 200510105310
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Chinese (zh)
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CN1935917A (en
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刘会权
向洋
谭伟华
贺茂英
邓国栋
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比亚迪股份有限公司
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Abstract

The invention relates to prime paint combination contains main body resin, diluted solvent, auxiliary agent or not, and photo-initiator which can be solidified in ultraviolet light. There is strong adhesive force between base coat formed by the prime paint combination and top coat formed by the ultraviolet light solidified paint combination.

Description

一种底层涂料组合物及其制备方法和多层涂层 One kind of primer composition and preparation method for a multilayer coating, and

技术领域 FIELD

[0001] 本发明是关于一种涂料组合物及其制备方法和多层涂层,更具体地是关于一种底层涂料组合物及其制备方法和多层涂层。 [0001] The present invention relates to a coating composition and method for preparing a multilayer coating and, more particularly, relates to a primer composition and preparation method and a multilayer coating.

背景技术 Background technique

[0002] 目前塑料配件表面,如手机壳体表面,手提电脑外壳,化妆品容器外壳等的涂层一般包括底涂层和面涂层。 [0002] Currently surface coating of plastic parts, such as the surface of the phone housing, portable computer housing, cosmetic containers and the like generally includes a housing base coat and topcoat. 底涂层一般由以热塑性丙烯酸树脂作为主体树脂的底层涂料组合物形成,而面涂层一般由紫外光固化的聚氨酯丙烯酸酯涂料组合物形成。 The undercoat layer is generally formed of a thermoplastic primer composition as a main resin, acrylic resin, and a UV curable topcoat is generally a urethane acrylate coating composition.

[0003] 目前用于底涂层的底层涂料组合物大都通过将热塑性丙烯酸酯树脂作为主体树月旨,颜料、珠光粉或者提供金属光泽的铝银浆作为调色剂,以及各种助剂加入到稀释溶剂组合而成。 [0003] It primer for undercoating composition largely by the thermoplastic acrylate resin as the main purpose tree months, pearlescence, or providing a metal gloss aluminum paste as a toner, and various additives added the diluting solvent combination. 这种底层涂料组合物形成的底涂层与底材的附着力性能可达到要求,但是底涂层与面涂层之间的附着力往往不够。 The undercoat layer and the substrate adhesion properties of the primer composition of this form can meet the requirements, but the adhesion between the primer layer and the topcoat often enough. 一般解决的办法是加入附着力促进剂,该方法虽然可以在一定程度上提高底涂层与面涂层之间的附着力,但由于附着力促进剂有较高的酸值,添加到底涂层时会使底涂层的色泽变暗。 The solution is typically added adhesion promoter, although this method can improve the adhesion between the undercoat and topcoat to a certain extent, but the adhesion promoter has a high acid value, the coating is added in the end when the undercoat layer causes the color to darken.

发明内容 SUMMARY

[0004] 本发明的目的是克服现有的底层涂料组合物形成的底涂层与面涂层的附着力不够的缺点,提供一种底层涂料组合物及其制备方法,该底层涂料组合物形成的底涂层与面涂层之间的附着力较强。 [0004] The object of the present invention is not enough to overcome the adhesion primer layer and the topcoat conventional primer compositions formed disadvantages, to provide a primer composition and a preparation method, the primer composition is formed adhesion between the primer layer and the topcoat is stronger.

[0005] 本发明的发明人经过研究,发现现有的多层涂层的底涂层与面涂层之间的附着力差的主要原因在于底涂层与面涂层的成膜机理不同,而通过往现有的底层涂料组合物中混入可在紫外光下固化的树脂及光引发剂后,形成的底涂层与面涂层的附着力大大提高, 基于这一发现完成了本发明。 [0005] The inventors of the present invention through research, found that the main reason for poor adhesion between the bottom of the existing coating and multilayer coating wherein topcoat different film-forming mechanism of the undercoat and topcoat, adhesion of the coating and the bottom surface of the coating by adding to the conventional primer compositions may be mixed into the curable resin under UV light and the initiator to form a greatly improved, based on this finding accomplished the present invention.

[0006] 本发明提供的底层涂料组合物含有主体树脂和稀释溶剂,含或不含助剂,其中,该底层涂料组合物还含有可在紫外光下固化的树脂及光引发剂。 [0006] The present invention provides a primer composition comprising a resin body and a diluting solvent, with or without additives, wherein the primer composition further contains a curable resin under UV light and a photoinitiator.

[0007] 本发明提供的底层涂料组合物的制备方法包括将主体树脂与稀释溶剂混合均勻, 将得到的浆液过滤,其中,该方法还包括加入可在紫外光下固化的树脂及引发剂并混合均勻。 [0007] The method of preparing the primer composition of the present invention comprises a body with a resin diluted with a solvent uniformly mixed, the resulting slurry was filtered, wherein the method further comprises adding a UV curable resin and the initiator at and mixing uniform.

[0008] 本发明提供的多层涂层包括至少一个底涂层和面涂层,底涂层由底层涂料组合物形成,面涂层由紫外光固化涂料组合物形成,所述底层涂料组合物含有主体树脂和稀释溶齐U,含或不含助剂,其中,该底层涂料组合物还含有可在紫外光下固化的树脂及光引发剂。 [0008] The multilayer coating of the present invention comprises at least a basecoat and a topcoat, an undercoat layer formed from the primer composition, a topcoat formed from a UV-curable coating composition, the primer composition containing a main resin and a homogeneous solution was diluted U, with or without additives, wherein the primer composition further contains a curable resin under UV light and a photoinitiator.

[0009] 本发明提供的多层涂层的底涂层与面涂层之间的附着力得到了大大的提高。 [0009] adhesion between the primer layer and the topcoat of the present invention provides a multilayer coating has been greatly improved.

具体实施方式 Detailed ways

[0010] 本发明提供的底层涂料组合物含有主体树脂和稀释溶剂,含或不含助剂,其中,该底层涂料组合物还含有可在紫外光下固化的树脂及光引发剂。 [0010] The present invention provides a primer composition comprising a resin body and a diluting solvent, with or without additives, wherein the primer composition further contains a curable resin under UV light and a photoinitiator. [0011] 按照本发明提供的底层涂料组合物,所述可在紫外光下固化的树脂可以是已知的任何类型的可在紫外光下固化的树脂,例如常用于面涂层组合物的那些可在紫外光下固化的树脂。 [0011] The primer composition according to the present invention provides the curable resin under UV light may be known under UV light curable resin of any type, for example commonly used in the topcoat composition are those curable resin under UV light. 优选的是,所述可在紫外光下固化的树脂为选自含有2-6个官能团的脂肪族非黄变型的不饱和聚氨酯丙烯酸酯预聚物(也称作“光固化聚氨酯丙烯酸酯”)、含有2-6个官能团的聚酯丙烯酸酯预聚物(也称作“光固化聚酯丙烯酸酯”)或环氧丙烯酸酯预聚物(也称作“光固化环氧丙烯酸酯”)中的一种或几种。 Preferably, the ultraviolet curable resin is selected in an unsaturated urethane acrylate prepolymer is an aliphatic non-yellowing 2-6 functional groups (also referred to as "photocurable urethane acrylate") , polyester acrylate prepolymer containing 2-6 functional groups (also referred to as "photocurable polyester acrylate") or an epoxy acrylate prepolymer (also referred to as "photo-curable epoxy acrylate") in one or several. 在此所述的官能团是指碳碳双键。 Herein refers to a functional group is a carbon-carbon double bond. 所述可在紫外光下固化的树脂可以商购得到,例如所述光固化聚氨酯丙烯酸酯的例子包括sartomer 公司生产的聚氨酯丙烯酸酯系列产品,如CN929,CN934, CN962, CN965, CN980, CN9788 ; Congnis 公司的系列产品,如6008,6010,6019,6623,6217,6210,6892 ;Eternal 公司的系列产品,如6148J-75,6161-100等。 The curable resin under UV light are commercially available, for example, the examples of the photo-curable urethane acrylate comprises sartomer urethane acrylate produced products, such as CN929, CN934, CN962, CN965, CN980, CN9788; Congnis the company's products, such as 6008,6010,6019,6623,6217,6210,6892; Eternal company's products, such as 6148J-75,6161-100 and so on. 所述光固化聚酯丙烯酸酯的例子包括sartomer公司生产的聚酯丙烯酸酯系列产品,如CN2250,CN2251, CN2252, CN2253, CN2255, CN2260, CN2261, CN2276,CN2230 ;Congnis公司的Photomer® 5000聚酯丙烯酸酯系列产品;Eternal公司生产的聚酯丙烯酸酯系列产品,如6318,6320,6331。 Examples of the photocurable polyester acrylate include sartomer polyester acrylate produced products, such as CN2250, CN2251, CN2252, CN2253, CN2255, CN2260, CN2261, CN2276, CN2230; Congnis's Photomer® 5000 polyester acrylate ester products; Eternal polyester acrylate produced products, such as 6318,6320,6331. 所述光固化环氧丙烯酸酯树脂的例子包括sartomer公司生产的环氧丙烯酸酯系列产品CN104,CN111, CNl 15〜CN121,CN124, CN136,CN2100, CN2101 ;Congnis公司生产的环氧丙烯酸酯系列产品,如6008,6010,6019, 6623,6217,6210,6892 ;galstaff产品,如syncryll04等。 Examples of the photo-curable epoxy acrylate resin produced sartomer include epoxy acrylate series CN104, CN111, CNl 15~CN121, CN124, CN136, CN2100, CN2101; Congnis produced epoxy acrylate series, as 6008,6010,6019, 6623,6217,6210,6892; galstaff products, such syncryll04 like. 以底层涂料组合物的总重量为基准,所述可在紫外光下固化的树脂的含量为0. 25-20重量%,优选为0. 5-15重量%。 Based on the total weight of the primer composition, the content of the ultraviolet curable resin is at 0. 25-20% by weight, preferably 0. 5-15% by weight.

[0012] 所述光引发剂可以是已知的任何类型的光引发剂,例如可以为选自IHT-PI185, IHT-P1907, Irgacure651, Irgacurel84, Irgacure369, Irgacure754, Irgacure2022, darocurll73, darocurMBF中的一种或几种。 [0012] The photoinitiator can be any type of known photoinitiators, for example, may be selected from one IHT-PI185, IHT-P1907, Irgacure651, Irgacurel84, Irgacure369, Irgacure754, Irgacure2022, darocurll73, darocurMBF of or more. 其中IHT-PI系列是中国国内商品,Irgacure、 darocur系列是瑞士汽巴公司产品。 IHT-PI series which is Chinese domestic goods, Irgacure, darocur series is the Swiss company Ciba products. 以底层涂料组合物总重量为基准,所述光引发剂的含量为0. 1-5重量%,优选为0. 2-3重量%。 Based on the total weight of the primer of the composition, the photoinitiator content of 0. 1-5% by weight, preferably 0. 2-3% by weight.

[0013] 所述主体树脂的种类和用量已为本领域技术人员所公知,主体树脂可以使用任何已知的用于底层涂料的树脂,如热塑性丙烯酸酯树脂。 [0013] The kind and amount of the resin body is well known to those skilled in art, the resin body may be used any known resin used for the primer, such as a thermoplastic acrylic resin. 所述热塑性丙烯酸酯树脂可以商购得到,例如美国罗门哈斯公司的A-11、A-12、B60、B66、A-21 ;日本三菱公司的BR-113、 BR-116、MB-2952、MB2660等。 The thermoplastic acrylate resins are commercially available, for example, Rohm and Haas Company's A-11, A-12, B60, B66, A-21; Mitsubishi's BR-113, BR-116, MB-2952 , MB2660 and so on. 以底层涂料组合物总重量为基准,所述主体树脂的含量优选为5-90重量%,更优选为15. 80重量%。 Based on the total weight of the primer composition as a reference, the host resin content is preferably 5-90 wt%, more preferably 15.80 wt%.

[0014] 按照本发明所提供的底层涂料组合物,其中所述稀释剂为有机溶剂。 [0014] The primer composition according to the present invention is provided, wherein the diluent is an organic solvent. 以底层涂料组合物总重量为基准,稀释剂的含量优选为2-80重量%,更优选为10-65重量%。 Primer the total weight of the composition, the content of the diluent is preferably 2-80 wt%, more preferably 10 to 65 wt%. 所述有机溶剂为本领域技术人员所公知,选自甲苯、乙酸乙酯、乙酸丁酯、乙酸异丁酯、乙酸丙酯、 乙醇、正丁醇、环已酮、二甲苯、甲基异丁基甲酮、丙酮、甲乙酮、乙二醇丁醚、丙二醇丁醚中的一种或几种。 The organic solvent known to those skilled in the art, selected from toluene, ethyl acetate, butyl acetate, isobutyl acetate, propyl acetate, ethanol, butanol, cyclohexanone, xylene, methyl isobutyl ketone, acetone, methyl ethyl ketone, ethylene glycol butyl ether, propylene glycol butyl ether is one or several.

[0015] 所述助剂指底层涂料组合物中常用的流平剂、消泡剂、分散剂中的一种或几种。 [0015] The adjuvant refers to one or more primer compositions conventional leveling agent, a defoaming agent, dispersant. 这些助剂的种类和用量为本领域技术人员所公知。 The types and amounts of these additives are known to those skilled in the art. 以底层涂料组合物总重量为基准,助剂的含量优选为0-10重量%,更优选为0-6重量%。 Primer the total weight of the composition, the content of additives is preferably 0-10 wt%, more preferably 0-6 wt%.

[0016] 所述流平剂的种类和用量为本领域技术人员所公知,例如所述流平剂可以选自EFKA3883,EFKA3886,EFKA3600,BYK366,BYK333,BYK307,DEG0410 中一种或几种。 [0016] The kind and amount of a leveling agent known to those skilled in the art, for example, the leveling agent may be selected EFKA3883, EFKA3886, EFKA3600, BYK366, BYK333, BYK307, DEG0410 one or several. 其中EFKA 系列是荷兰爱夫卡公司产品,BYK系列是BI公司产品,DEGO系列是德国迪高公司产品,以上其牌号为本领域技术人员所公知。 EFKA series which is 荷兰爱夫卡 the company's products, BYK series is the company's BI products, DEGO series is the company's products in Germany Di high above the grade is known to those skilled in the art. 以底层涂料组合物总重量为基准,所述流平剂的含量优选为0-2重量%,更优选为0-1. 5重量%。 Based on the total weight of the primer composition, the content of the leveling agent is preferably 0 to 2 wt%, more preferably 0-1. 5 wt%.

[0017] 所述消泡剂的种类和用量为本领域技术人员所公知,例如,所述消泡剂可以选自EFKA2022、EFKA2527、EFKA2040、BYK352, BYK354, BYK357 中一种或几种。 The [0017] The type and amount of defoamer known to those skilled in well-known, for example, the defoaming agent can be selected from EFKA2022, EFKA2527, EFKA2040, BYK352, BYK354, BYK357 one or several. 以底层涂料组合物总重量为基准,所述消泡剂的含量优选为0-2重量%,更优选为0-1. 5重量%。 Based on the total weight of the primer composition, the content of the antifoaming agent is preferably 0-2 wt%, more preferably 0-1. 5 wt%.

[0018] 所述分散剂的种类和用量为本领域技术人员所公知,例如,所述分散剂可以选自Kerper-602, Kerper-605, Kerper630, CFC-500HP,CFC-510,CFC-637,CFC-604S 中的一种或几种。 [0018] The kinds and amounts of dispersants are known to those skilled in well-known, for example, the dispersant may be selected Kerper-602, Kerper-605, Kerper630, CFC-500HP, CFC-510, CFC-637, one or more of CFC-604S. 其中Kerper系列为美国Kerper公司产品,CFC系列为法国CFC公司产品。 Which Kerper series for the US Kerper the company's products, CFC CFC series for the French company's products. 以底层涂料组合物总重量为基准,所述分散剂的含量优选为0-5重量%,更优选为0-3重量%。 Based on the total weight of the primer composition, the content of the dispersing agent is preferably 0-5 wt%, more preferably 0-3 wt%.

[0019] 按照本发明所提供的底层涂料组合物,其中,所述底层涂料组合物中还可以含有调色剂。 [0019] The primer composition according to the present invention is provided, wherein the primer composition may further contain toner. 所述调色剂的种类和用量已为本领域技术人员所公知,例如调色剂为选自银浆、 色浆、珠光粉、珍珠粉、荧光粉、染料、有机或无机颜料中的一种或几种。 The kind and amount of the toner has been well known to those skilled in art, for example, selected from one of the toner paste, paste, pearl powder, pearl powder, phosphors, dyes, organic or inorganic pigments or more. 所述调色剂都可以商购得到,例如银浆可以使用日本东洋产品5660NS。 The toner may be commercially available, for example, silver paste may be used Toyo products 5660NS. 以底层涂料组合物总重量为基准,调色剂的含量优选为0-50重量%,更优选为10-30重量%。 Based on the total weight of the primer composition, the content of the toner is preferably 0-50 wt%, more preferably 10-30 wt%.

[0020] 按照本发明所提供的底层涂料组合物,其中,所述底层涂料组合物中还可以含有调节剂。 [0020] The primer composition according to the present invention is provided, wherein the primer composition may also contain modifiers. 所述调节剂的种类和用量为本领域技术人员所公知,例如调节剂可以选自CAB(醋酸丁酸纤维素)或硝化棉。 Adjusting the kind and amount of agents known to those skilled in the art, may be selected from, for example, adjusting the CAB (cellulose acetate butyrate) or nitrocellulose. 调节剂可以调节调色剂的排列以及由底层涂料组合物形成的涂膜的表面性质。 Modulator may be arranged to adjust the surface properties of the toner and the coating film formed from the primer composition. 以底层涂料组合物总重量为基准,所述调节剂的含量优选为0-15重量%, 更优选为1-10重量%。 Based on the total weight of the primer of the composition, the modifier content is preferably 0-15 wt%, and more preferably 1 to 10 wt%.

[0021] 本发明提供的底层涂料组合物的制备方法包括将主体树脂与稀释溶剂混合均勻, 将得到的浆液过滤,其中,该方法还包括加入可在紫外光下固化的树脂及引发剂并混合均勻。 [0021] The method of preparing the primer composition of the present invention comprises a body with a resin diluted with a solvent uniformly mixed, the resulting slurry was filtered, wherein the method further comprises adding a UV curable resin and the initiator at and mixing uniform.

[0022] 按照本发明提供的底层涂料组合物的制备方法,所述主体树脂、稀释剂、光引发剂和可在紫外光下固化的树脂的混合可以同时进行也可以分步进行。 [0022] The production method according to the present invention provides a primer composition, a binder, a diluent, a photoinitiator and mixing under UV light curable resin may be performed in stages simultaneously. 优选情况下,将光引发剂与部分稀释剂混合,使光引发剂充分溶解,得到含有光引发剂的溶液;将主体树脂与部分稀释剂混合均勻,得到含有主体树脂的浆液;将可在紫外光下固化的树脂与部分稀释剂混合均勻,得到含有可在紫外光下固化的树脂的浆液;再将含有光引发剂的溶液、含有主体树脂的浆液、含有可在紫外光下固化的树脂的浆液混合均勻,最后加入剩余的稀释剂混合均勻。 Preferably, the diluent agent and the photoinitiator portion, photoinitiator sufficiently dissolved to obtain a solution containing a photoinitiator; the body portion diluent uniformly mixed with the resin to obtain a slurry containing a resin body; will be ultraviolet light-curing resin mixed with a portion of the diluent uniformly to obtain a slurry containing a curable resin under UV light; then a solution containing the photoinitiator, the slurry containing the resin body, comprising a curable resin under UV the slurry mixing, and finally adding the remaining diluent uniformly mixed.

[0023] 为了使所述主体树脂均勻分散,将主体树脂与部分稀释剂混合时,可以提高混合的温度,混合的温度为常规的混合温度,该温度一般为30-60°C。 [0023] In order to uniformly disperse the main resin, the resin and the main body portion diluent, can increase the temperature of the mixing, the mixing temperature of conventional mixing temperature which is generally 30-60 ° C.

[0024] 如果所述底层涂料组合物中还含有流平剂、消泡剂、分散剂等助剂以及调节剂时, 本发明提供的方法还包括在加入剩余的稀释剂之前,在得到含有光引发剂、主体树脂、可在紫外光下固化的树脂和所述有机溶剂的浆液中,加入所述流平剂、消泡剂、分散剂、调色剂和调节剂,并混合均勻的步骤。 [0024] If the primer composition further contains a leveling agent, a defoaming agent, dispersing agent aids and modifiers, the present invention provides a method further comprising prior to adding the remaining diluent, to give the light comprising initiator, the main resin, ultraviolet curable resin in the slurry and the organic solvent, the step of leveling agents, defoaming agents, dispersing agents, modifiers and the toner, is added and mixed well. 所述流平剂、消泡剂、分散剂、调色剂和调节剂可以同时加入也可以分步加入,加入的顺序对底层涂料组合物的性能没有显著的影响。 The leveling agents, defoaming agents, dispersing agents, modifiers and the toner can also be added stepwise added, the order of addition had no significant impact on the performance of the primer composition.

[0025] 按照本发明提供的底层涂料组合物的制备方法的一个优选实施方式,该方法包括(1)将光引发剂与部分稀释剂混合,搅拌至充分溶解;(¾将主体树脂与部分稀释剂混合均勻;(3)将可在紫外光下固化的树脂与部分稀释剂混合均勻;(4)将步骤(1)、(2)和(3)得到的产物混合;(¾继续加入或不加入助剂、调节剂和调色剂,并混合均勻;(6)降温,过滤得到的浆液;(7)继续加入剩余的稀释剂,混合均勻。 [0025] According to a preferred embodiment of the method of the present invention provides primer compositions prepared, which method comprises (1) mixing the agent with a diluent photoinitiator portion, stirring until fully dissolved; (¾ the body portion and the resin diluted uniformly mixing agent; (3) the ultraviolet curable resin at the portion diluent mixed; (4) the step (1), (2) and (3) mixing the product obtained; (¾ continue with or without the adding additives, modifiers and the toner, and mixed uniformly; (6) cooling, filtering the resulting slurry; (7) continue adding the remaining diluent mixed.

[0026] 由本发明提供的底层涂料组合物形成的涂膜适合用作各种材料的底涂层,特别是便携器件的塑料配件的底涂层,如手机壳体表面、手提电脑外壳、化妆品容器外壳的底涂层。 [0026] The present invention is provided by coating a primer composition suitable for use as materials forming the primer layer, in particular plastic parts of the mobile device undercoat layer, the surface of the housing such as mobile phones, portable computer housing, a cosmetic container the undercoat layer of the housing. 在使用时,可以将本发明提供的底层涂料组合物与上述稀释剂以1 : 0.5-1. 5的重量比进行混合稀释,然后喷涂在材料表面,50-60°C烘干5-15分钟,可以得到良好的底涂层, 涂层厚度一般为5-15微米。 In use, the present invention can be provided with the above-described primer composition of diluent to 1: 5 by weight ratio of 0.5 to 1 dilution were mixed, then sprayed on the material surface, 50-60 ° C for 5-15 minutes drying can be obtained good undercoat layer, the coating thickness is 5-15 microns.

[0027] 本发明提供的多层涂层包括至少一个底涂层和面涂层,底涂层由上述底层涂料组合物形成,面涂层由紫外光固化涂料组合物形成,底层涂料组合物含有主体树脂和稀释溶齐U,含或不含助剂,其中,该底层涂料组合物还含有可在紫外光下固化的树脂及光引发剂。 [0027] The multilayer coating of the present invention comprises at least a basecoat and a topcoat, an undercoat layer formed by the primer composition, a topcoat formed from a UV-curable coating composition, the primer composition comprising body resin solution was diluted and homogeneous U, with or without additives, wherein the primer composition further contains a curable resin under UV light and a photoinitiator.

[0028] 根据本发明提供的多层涂层,除了底涂层由本发明提供的底层涂料组合物形成之外,面涂层可以由本领域已知的任何紫外光固化涂料组合物形成。 [0028] Any UV-curable coating composition according to the present invention provides a multi-layer coatings, in addition to the primer layer provided by the present invention, the primer composition forming topcoat known in the art may be formed.

[0029]例如,可以采用 CN1436825A、CN1091457C、CN1297972A、CN1436825A 中记载的紫外光固化涂料组合物。 [0029] For example, a CN1436825A, CN1091457C, CN1297972A, CN1436825A UV-curable coating compositions described. 一般情况下,所述紫外光固化涂料组合物含有可在紫外光下固化的树脂、稀释剂和光引发剂,有时还含有流平剂、消泡剂、润滑剂、耐磨剂等助剂。 In general, the UV-curable coating composition comprising a curable resin under UV light, a photoinitiator and a diluent, may further contain a leveling agent, a defoaming agent, a lubricant, wear resistant additives, and the like. 以涂料的总量为基准,所述可在紫外光下固化的树脂的含量为5-95重量%、稀释剂的含量为2-90重量%、光引发剂的含量为1-10重量%、助剂的含量为0-15重量%。 The total amount of the coating as a reference, the content of the ultraviolet curable resin is at 5-95% by weight, content of 2 to 90 wt% diluent, photoinitiator is 1 to 10% by weight, content of 0-15% by weight of additives. 其中,所述可在紫外光下固化的树脂为选自含有2-6个官能团的脂肪族非黄变型的不饱和聚氨酯丙烯酸酯预聚物、 含有2-6个官能团的聚酯丙烯酸酯预聚物或环氧丙烯酸酯预聚物中的一种或几种。 Wherein said curable resin is an ultraviolet light at an unsaturated urethane acrylate prepolymer selected from a non-yellowing aliphatic functional groups of 2-6, 2-6 containing polyester acrylate prepolymer functional groups or one or more epoxy acrylate prepolymer. 优选情况下,形成面涂层的紫外光固化涂料组合物中的可在紫外光下固化的树脂与底层涂料组合物中的可在紫外光下固化的树脂的种类相同,在这种情况下,形成的底涂层和面涂层之间的附着力更好。 Preferably, the same type curable resin under UV cured primer resin composition under UV light UV curable coating composition formed in the topcoat, in this case, better adhesion between the undercoat and the topcoat is formed. 所述稀释剂为有机溶剂或有机溶剂与丙烯酸酯单体的混合物。 The diluent is a mixture of an organic solvent or an organic solvent with an acrylate monomer. 紫外光固化涂料组合物的各种成分在上述专利中都有介绍,在此不作赘述。 UV-curable coating composition ingredients are described in the aforementioned patents, will not be repeated here.

[0030] 由紫外光固化涂料组合物形成的涂膜适合用作各种材料表面的面涂层,特别是便携器件的塑料配件的面涂层,如手机壳体表面、手提电脑外壳、化妆品外壳的面涂层。 [0030] The coating film formed of a UV curable coating composition is suitable as a material of the top coat various surfaces, particularly plastic parts topcoat portable devices, such as mobile phone housing surface, laptop computer case, cosmetics case topcoat. 涂膜厚度一般为6-15微米,50°C烘干10-15分钟,并经紫外光照射20-25秒,可以得到良好的固化膜层。 Film thickness is 6-15 m, 50 ° C dry for 10-15 minutes and 20-25 seconds, irradiated with UV light, a cured film can obtain good. 在紫外光照射形成面涂层的过程中,底涂层中的可在紫外光下固化的树脂与面涂层中的可在紫外光下固化的树脂发生作用,二者的双键交联,达到提高附着力的目的。 During UV irradiation the surface coating layer is formed, the ultraviolet curable resin in the undercoat layer and the topcoat in the ultraviolet curable resin is in effect, crosslinking the two double bonds, the purpose of improving adhesion. 因此在本发明提供的多层涂层中,底涂层与面涂层之间的附着力较强。 Thus the present invention provides a multi-layer coating, the adhesion between the undercoat and the topcoat is stronger.

[0031] 下面通过实施例来更详细地描述本发明。 [0031] The present invention is described in more detail below by way of examples.

[0032] 实施例1 [0032] Example 1

[0033] 该实施例用于说明本发明提供的底层涂料组合物及其制备方法。 [0033] This embodiment primer composition and preparation method of the present invention provides for the embodiment of FIG.

[0034] 按如下步骤配制底层涂料组合物:(1)将0. 5重量份光引发剂IrgaCUre184与2 重量份稀释剂混合,搅拌至充分溶解;(¾将25重量份热塑性丙烯酸酯树脂(美国罗门哈斯公司产品B-66)与30重量份稀释剂混合均勻;C3)将5重量份聚氨酯丙烯酸酯树脂(Sartomer产品,CN96Q与5重量份稀释剂混合均勻;(4)将12重量份银浆(日本东洋产品5660NS)与10重量份稀释剂混合均勻;(5)将步骤(1)、(2)、(3)和(4)得到的产物混合; (6)在步骤(¾得到的产物中加入0. 5重量份流平剂EFKA3777、8重量份CAB树脂(伊斯曼产品CAB381-0. 5),并混合均勻;(7)降温,过滤得到的浆液;(8)继续加入2重量份稀释齐U,混合均勻,得到底层涂料组合物DT1。其中,稀释剂为甲苯、正丁醇和乙酸乙酯的混合物,三者的重量比为3 : 1 : 2。底层涂料组合物DTl的组成如表1所示。 [0034] The primer composition is formulated as follows: (1) 0.5 parts by weight of a photoinitiator IrgaCUre184 mixed with 2 parts by weight of diluent, stirring until fully dissolved; (¾ to 25 parts by weight of a thermoplastic acrylate resin (U.S. Rohm and Haas product B-66) with 30 parts by weight of a diluent uniformly mixed; a C3) 5 parts by weight of the urethane acrylate resin (Sartomer product, 5 parts by weight of a diluent and CN96Q mixed; (4) 12 parts by weight silver paste (Toyo product 5660NS) was mixed with 10 parts by weight of a diluent uniformly; (5) step (1), (2), (3) and (4) mixing the product obtained; (6) in step (¾ to give the product was added 0.5 parts by weight of a leveling agent EFKA3777,8 parts by weight of CAB resin (Eastman product CAB381-0 5.), and mix; (7) cooling, filtering the resulting slurry; (8) continue to add 2 parts by weight of the dilute homogeneous U, uniformly mixed to obtain primer composition DT1 wherein the diluent is toluene, a mixture of ethyl acetate and n-butanol, the weight ratio of three to 3: 1: 2. the primer composition DTl the compositions shown in table 1.

[0035] 对比例1 [0035] Comparative Example 1

[0036] 该对比例用于说明参比底层涂料组合物及其制备方法。 [0036] The comparative reference for composition and preparation method described specific primer.

[0037] 按如下步骤配制参比底层涂料组合物:(1)将30重量份热塑性丙烯酸酯树脂(美国罗门哈斯公司产品B-66)与30重量份稀释剂混合均勻;(¾将12重量份银浆(日本东洋产品5660NS)与10重量份稀释剂混合均勻;(3)将步骤⑴和(2)得到的产物混合; 在步骤(¾得到的产物中加入1重量份流平剂EFKA3777、8重量份CAB树脂(伊斯曼产品CAB381-0. 5),并混合均勻;(5)降温,过滤得到的浆液;(6)继续加入9重量份稀释剂,混合均勻,得到底层涂料组合物⑶Tl。其中,稀释剂为甲苯、正丁醇和乙酸乙酯的混合物,三者的重量比为3 : 1 : 2。底层涂料组合物⑶Tl的组成如表1所示。 [0037] Reference formulation primer composition as follows: (1) 30 parts by weight of a thermoplastic acrylate resin (Rohm and Haas Company Product B-66) with 30 parts by weight of a diluent uniformly mixed; (¾ 12 parts by weight of silver paste (Toyo product 5660NS) and 10 parts by weight of a diluent uniformly mixed; (3) a step of mixing and ⑴ product (2) is obtained; in step (¾ product obtained was added 1 part by weight of leveling agent EFKA3777 , 8 parts by weight of CAB resin (Eastman product CAB381-0 5.), and mix; (5) cooling, filtering the resulting slurry; (6) 9 parts by weight of the diluent further added, uniformly mixed to obtain primer composition . ⑶Tl thereof wherein the diluent is toluene, a mixture of ethyl acetate and n-butanol, the weight ratio of three to 3: 1: 2. the primer composition ⑶Tl composition as shown in table 1.

[0038] 实施例2 [0038] Example 2

[0039] 该实施例用于说明本发明提供的底层涂料组合物及其制备方法。 [0039] This embodiment primer composition and preparation method of the present invention provides for the embodiment of FIG.

[0040] 按如下步骤配制底层涂料组合物:(1)将2. 5重量份光引发剂IrgaCUre184与2 重量份稀释剂混合,搅拌至充分溶解;(2)将45. 5重量份热塑性丙烯酸酯树脂(美国罗门哈斯公司产品A-11)与15重量份稀释剂混合均勻;(3)将10重量份聚氨酯丙烯酸酯树脂(Sartomer产品,CN929)与5重量份稀释剂混合均勻;(4)将10重量份黑色色浆(科迪公司,碳黑9007-U)与3重量份稀释剂混合均勻;(5)将步骤(1)、(2), (3)和(4)得到的产物混合;(6)在步骤(¾得到的产物中加入2重量份硝化棉(上海台硝化工有限公司, NCl/4s),并混合均勻;(7)降温,过滤得到的浆液;(8)继续加入5重量份稀释剂,混合均勻,得到底层涂料组合物DT2。其中,稀释剂为甲苯、正丁醇和乙酸乙酯的混合物,三者的重量比为3 : 1 : 2。底层涂料组合物DT2的组成如表1所示。 [0040] The primer composition is formulated as follows: (1) 2.5 parts by weight of a photoinitiator IrgaCUre184 mixed with 2 parts by weight of diluent, stirring until fully dissolved; (2) 45.5 parts by weight of a thermoplastic acrylate resin (Rohm and Haas company product A-11) and 15 parts by weight of a diluent uniformly mixed; (3) 10 parts by weight of the urethane acrylate resin (Sartomer product, CN929) and 5 parts by weight of a diluent uniformly mixed; (4 ) 10 parts by weight of black paste (Cody, carbon black 9007-U) was mixed with 3 parts by weight of a diluent uniformly; (5) step (1), (2), (3) and (4) obtained the product mixture; (6) was added 2 parts by weight of nitrocellulose (Shanghai Chemical Co., Taiwan Glass, NCl / 4s) in the product of step (¾ obtained and mixed uniformly; (7) cooling, filtering the resulting slurry; (8) 5 parts by weight of the diluent further added, uniformly mixed to obtain primer composition DT2 wherein the diluent is toluene, a mixture of ethyl acetate and n-butanol, the weight ratio of three to 3: 1: 2. the primer composition DT2 compositions shown in table 1.

[0041] 实施例3 [0041] Example 3

[0042] 该实施例用于说明本发明提供的底层涂料组合物及其制备方法。 [0042] This embodiment primer composition and preparation method of the present invention provides for the embodiment of FIG.

[0043] 按如下步骤配制底层涂料组合物:(1)将0. 3重量份光引发剂IrgaCUre184与1 重量份稀释剂混合,搅拌至充分溶解;(¾将60重量份热塑性丙烯酸酯树脂(美国罗门哈斯公司产品B-66)与10重量份稀释剂混合均勻;C3)将2重量份聚氨酯丙烯酸酯树脂(Sartomer产品,CN965)与1重量份稀释剂混合均勻;(4)将14. 7重量份黑色色浆(科迪公司,碳黑9007-U)与3重量份稀释剂混合均勻;(5)将步骤⑴、⑵、(3)和(4)得到的产物混合;(6)在步骤(¾得到的产物中加入5重量份CAB树脂(伊斯曼产品CAB381-0. 5), 并混合均勻;(7)降温,过滤得到的浆液;(8)继续加入3重量份稀释剂,混合均勻,得到底层涂料组合物DT2。其中,稀释剂为甲苯、正丁醇和乙酸乙酯的混合物,三者的重量比为3:1:2。底层涂料组合物DT2的组成如表1所示。 [0043] The primer composition is formulated as follows: (1) 0.3 parts by weight of a photoinitiator IrgaCUre184 mixed with 1 part diluent by weight, stirring until fully dissolved; (¾ to 60 parts by weight of a thermoplastic acrylate resin (U.S. Rohm and Haas product B-66) with 10 parts by weight of a diluent uniformly mixed; a C3) 2 parts by weight of the urethane acrylate resin (Sartomer product, CN965) 1 part by weight of a diluent uniformly mixed; (4) 14. 7 parts by weight of black paste (Cody, carbon black 9007-U) was mixed with 3 parts by weight of a diluent uniformly; (5) the step ⑴, ⑵, (3) and the mixing product (4) obtained; (6) in step (¾ product obtained was added 5 parts by weight of CAB resin (Eastman product CAB381-0 5), and mixed well;. (7) cooling, filtering the resulting slurry; (8) further added 3 parts by weight of diluent , uniformly mixed to obtain primer composition DT2 wherein the diluent is toluene, a mixture of ethyl acetate and n-butanol, the weight ratio of three to 3: 1: 2 composition DT2 primer composition as in table 1 shows.

[0044] 对比例2 [0044] Comparative Example 2

[0045] 该对比例用于说明参比底层涂料组合物及其制备方法。 [0045] The comparative reference for composition and preparation method described specific primer.

[0046] 按如下步骤配制参比底层涂料组合物:(1)将62重量份热塑性丙烯酸酯树脂(美国罗门哈斯公司产品B-66)与10重量份稀释剂混合均勻;(2)将15重量份黑色色浆(科迪公司碳黑9007-U)与3重量份稀释剂混合均勻;(¾将步骤(1)和(¾得到的产物混合; (4)在步骤(¾得到的产物中加入5重量份CAB树脂(伊斯曼产品CAB381-0. 5),并混合均勻;(¾降温,过滤得到的浆液;(6)继续加入5重量份稀释剂,混合均勻,得到底层涂料组合物⑶T2。其中,稀释剂为甲苯、正丁醇和乙酸乙酯的混合物,三者的重量比为3 : 1 : 2。 底层涂料组合物⑶T2的组成如表1所示。 [0046] Reference is formulated as follows primer composition: (1) 62 parts by weight of a thermoplastic acrylate resin (Rohm and Haas Company Product B-66) with 10 parts by weight of a diluent uniformly mixed; (2) 15 parts by weight of a black colorant (carbon black Cody 9007-U) was mixed with 3 parts by weight of a diluent uniformly; (¾ of step (1) and (¾ resulting product mixture; (4) in step (¾ product obtained was added 5 parts by weight of CAB resin (Eastman product CAB381-0 5.), and mix; (¾ cooling, the resulting slurry was filtered; (6) 5 parts by weight of the diluent further added, uniformly mixed to obtain primer composition . ⑶T2 thereof wherein the diluent is toluene, a mixture of ethyl acetate and n-butanol, the weight ratio of three to 3: 1: 2. the primer composition ⑶T2 composition as shown in table 1.

[0047] 表1 [0047] TABLE 1

[0048] [0048]

Figure CN1935917BD00091

[0049] 实施例4-6 [0049] Example 4-6

[0050] 实施例4-6用于说明本发明提供的多层涂层。 [0050] Examples 4-6 illustrate a multi-layer coatings of the present invention is provided.

[0051] 分别将实施例1-3中得到的底层涂料组合物DT1-3与稀释剂以1 : 0. 8的重量比进行混合稀释,然后喷涂在材料表面,55°C烘干10分钟,得到底涂层,底涂层的厚度为8微米。 [0051] The primer composition with a diluent DT1-3 obtained in Examples 1-3, respectively, in Embodiment 1: 0.8 weight ratio for mixing the dilution, and then sprayed on the surface of the material, 55 ° C and drying for 10 minutes, in the end to obtain the coating, the thickness of the undercoat layer was 8 micrometers. 其中,稀释剂为甲苯、正丁醇和乙酸乙酯的混合物,三者的重量比为3 : 1 : 2。 Wherein the diluent is toluene, a mixture of ethyl acetate and n-butanol, the weight ratio of three to 3: 1: 2.

[0052] 将6重量份光引发剂IrgaCure2022与10重量份稀释剂(乙酸丁酯:乙醇:乙二醇丁醚=1 : 1 : 1)混合,搅拌至充分溶解;(¾将30重量份脂肪族聚氨酯丙烯酸酯树脂(Sartomer产品,CN965),30重量份环氧丙烯酸酯树脂(galstaff产品,syncryll04)与15 重量份稀释剂(乙酸丁酯:乙醇:乙二醇丁醚=1 : 1 :1)在40°C混合,搅拌均勻;(3)将步骤(1)和(2)得到的产物混合;降温,过滤得到的浆液,以除去残渣;(5)继续加入9 重量份稀释剂(乙酸丁酯:乙醇:乙二醇丁醚=1:1: 1),搅拌均勻,得到紫外光固化涂料组合物。 [0052] 6 parts by weight of a photoinitiator IrgaCure2022 parts by weight of the diluent 10 (butyl acetate: ethanol: glycol butyl ether = 1: 1: 1) were mixed and stirred until fully dissolved; (¾ 30 parts by weight of fat aliphatic urethane acrylate resin (Sartomer product, CN965), 30 parts by weight of epoxy acrylate resin (galstaff product, syncryll04) and 15 parts by weight of diluent (butyl acetate: ethanol: glycol butyl ether = 1: 1: 1 ) at 40 ° C were mixed uniformly stirred; (3) the mixing step (1) and (2) the product obtained; cooling, the resulting slurry was filtered to remove residue; (5) 9 parts by weight of the diluent continues (acetic acid ester: ethanol: glycol butyl ether = 1: 1: 1) and stirred uniformly to obtain UV-curable coating composition.

[0053] 将上述紫外光固化涂料组合物分别喷涂在上述得到的底涂层上,50°C烘干15分钟,并经紫外光照射25秒,得到厚度为12微米的面涂层。 [0053] The above-described ultraviolet-curable coating composition was sprayed on the undercoat layer obtained above, 50 ° C Drying 15 minutes, respectively, and irradiated with UV light for 25 seconds to obtain a surface coating thickness of 12 microns. 这样,分别得到多层涂层MT1-3。 Thus, multilayer coatings were obtained MT1-3.

[0054] 对比例3-4 [0054] Comparative Example 3-4

[0055] 对比例3-4用于说明参比多层涂层。 [0055] 3-4 Comparative multilayer coating for explaining reference.

[0056] 按照与实施例4-6相同的方法和步骤分别得到参比多层涂层CMT1-2,不同的是, 底涂层分别由参比底层涂料组合物⑶T1-2形成。 [0056] Following the same manner as Examples 4-6, respectively, and the step of multi-layer coatings obtained reference CMT1-2, except that the undercoat layer are formed from the reference ⑶T1-2 primer composition.

[0057] 性能测试 [0057] Performance Test

[0058] 利用下面的方法分别测定多层涂层MT1-3以及参比多层涂层CMT1-2的底涂层与面涂层之间的附着力,测定结果如表2所示。 [0058] were measured by the following method of adhesion between the multilayer coating MT1-3 topcoat and undercoat reference CMT1-2 multilayer coating, the measurement results shown in Table 2.

[0059] 用划格器在多层涂层表面划100个1毫米X 1毫米的正方形格,用美国3M公司生产的型号为600的透明胶带平整粘结在方格上,不留一丝空隙,然后以最快速度垂直揭起, 观察划痕边缘处有无脱漆。 [0059] designated 100 1 mm X 1 mm square grid surface of the multi-layer coating is cross-hatch, with the American company 3M Model 600 transparent tape adhered to the box flat, without leaving a trace of the gap, ASAP vertical lift, at the edge scratches was observed whether or stripping. 如脱漆量在0-5 %之间为5B,在5-10 %之间为4B,在10-20 %之间为:3B,在20-30%之间为2B,在30-50%之间为B,在50%以上为0B。 The amount of stripping is between 0-5%. 5B, is between 5-10%. 4B, is between 10-20%: 3B, is between 20-30%. 2B, 30-50% between is B, more than 50% 0B.

[0060] 表2[0061] [0060] Table 2 [0061]

Figure CN1935917BD00101

[0062] 从表2所示的结果可以看出,与现有的多层涂层相比,本发明提供的多层涂层的 [0062] As can be seen from the results shown in Table 2, compared with the conventional multilayer coating, the multilayer coating of the present invention provides

底涂层与面涂层之间的附着力得到了大大的提高。 Adhesion between the primer layer and the topcoat has been greatly improved.

Claims (15)

1. 一种底层涂料组合物,该底层涂料组合物含有主体树脂和稀释溶剂,含或不含助剂, 其特征在于,该底层涂料组合物还含有可在紫外光下固化的树脂及光引发剂,其中,所述可在紫外光下固化的树脂为选自含有2-6个官能团的脂肪族非黄变型的不饱和聚氨酯丙烯酸酯预聚物、含有2-6个官能团的聚酯丙烯酸酯预聚物或环氧丙烯酸酯预聚物中的一种或几种,以所述底层涂料组合物的总重量为基准,主体树脂的含量为5-90重量%,稀释剂的含量为2-80重量%,可在紫外光下固化的树脂的含量为0. 25-20重量%,光引发剂的含量为0. 1-5重量%,助剂的含量为0-10重量%。 A primer composition, the primer composition comprising a resin body and a diluting solvent, with or without additives, wherein the primer composition further contains a curable resin under UV light and a photoinitiator agent, wherein the curable resin is an ultraviolet light at an unsaturated urethane acrylate prepolymer selected from a non-yellowing aliphatic functional groups of 2-6, 2-6 containing polyester acrylate functional groups one or more epoxy acrylate prepolymer or prepolymer to the total weight of the primer composition, the content of the main resin is 5 to 90 wt%, the content of the diluent is 2- 80 wt%, the content of the ultraviolet curable resin is 25-20 wt% 0. the content of the photoinitiator is 0.05 to 5 wt%, the content of additives is 0-10% by weight.
2.根据权利要求1所述的底层涂料组合物,其中,以所述底层涂料组合物的总重量为基准,主体树脂的含量为15-80重量%,稀释剂的含量为10-65重量%,可在紫外光下固化的树脂的含量为0. 5-15重量%,光引发剂的含量为0. 2-3重量%,助剂的含量为0-6重量%。 The primer composition according to claim 1, wherein the total weight of the primer composition, the content of the main resin 15 to 80 wt%, the content of 10 to 65 wt% diluent the content of the ultraviolet curable resin is at 0. 5-15% by weight, the content of the photoinitiator is 0. 2-3% by weight, content of 0-6 wt% of additives.
3.根据权利要求1所述的底层涂料组合物,其中,所述光引发剂为选自IHT-PI185、 IHT-PI907、 Irgacure651、 Irgacurel84、 Irgacure369、 Irgacure754、 Irgacure2022、 darocurll73、darocurMBF 中的一种或几种。 The primer composition according to claim 1, wherein the photoinitiator is selected IHT-PI185, one kind IHT-PI907, Irgacure651, Irgacurel84, Irgacure369, Irgacure754, Irgacure2022, darocurll73, darocurMBF or several.
4.根据权利要求1所述的底层涂料组合物,其中,所述主体树脂为热塑性丙烯酸酯树脂。 The primer composition according to claim 1, wherein the body is a thermoplastic resin is an acrylate resin.
5.根据权利要求1所述的底层涂料组合物,其中,所述稀释剂为有机溶剂,所述有机溶剂选自甲苯、乙酸乙酯、乙酸丁酯、乙酸异丁酯、乙酸丙酯、乙醇、正丁醇、环己酮、二甲苯、甲基异丁基甲酮、丙酮、甲乙酮、乙二醇丁醚、丙二醇丁醚中的一种或几种。 The primer composition according to claim 1, wherein said diluent is an organic solvent, the organic solvent is selected from toluene, ethyl acetate, butyl acetate, isobutyl acetate, isopropyl acetate, ethanol , n-butanol, one or more of cyclohexanone, xylene, methyl isobutyl ketone, acetone, methyl ethyl ketone, ethylene glycol butyl ether, propylene glycol monobutyl ether.
6.根据权利要求1所述的底层涂料组合物,其中,所述助剂为选自流平剂、消泡剂、分散剂中的一种或几种。 The primer composition according to claim 1, wherein said adjuvant is selected from leveling agents, defoaming agents, one or more dispersant.
7.根据权利要求1所述的底层涂料组合物,其中,所述底层涂料组合物中还含有调色齐U,以底层涂料组合物总重量为基准,调色剂的含量为10-30重量%。 The primer composition according to claim 1, wherein said primer composition further contains a toner homogeneous U, based on the total weight of the primer composition, the content of the toner is 10 to 30 wt. %.
8.根据权利要求7所述的底层涂料组合物,其中,所述调色剂选自银浆、色浆、珠光粉、 珍珠粉、荧光粉、染料、有机或无机颜料中的一种或几种。 8. The primer composition of claim 7, wherein said toner is selected from one paste, paste, pearl powder, pearl powder, phosphors, dyes, organic or inorganic pigments or several species.
9.根据权利要求1所述的底层涂料组合物,其中,所述底层涂料组合物中还含有调节齐U,以底层涂料组合物总重量为基准,所述调节剂的含量为1-10重量%。 9. The primer composition according to claim 1, wherein said primer composition further contains regulating Qi U, based on the total weight of the primer of the composition, adjusting the amount of the agent is 1-10 wt. %.
10.根据权利要求9所述的底层涂料组合物,其中,所述调节剂为醋酸丁酸纤维素或硝化棉。 10. The primer composition according to claim 9, wherein said adjusting agent is cellulose acetate butyrate or nitrocellulose.
11.权利要求1所述的底层涂料组合物的制备方法,该方法包括将主体树脂与稀释溶剂混合均勻,将得到的浆液过滤,其特征在于,该方法还包括加入可在紫外光下固化的树脂及光引发剂并混合均勻,其中,所述可在紫外光下固化的树脂为选自含有2-6个官能团的脂肪族非黄变型的不饱和聚氨酯丙烯酸酯预聚物、含有2-6个官能团的聚酯丙烯酸酯预聚物或环氧丙烯酸酯预聚物中的一种或几种,以所述底层涂料组合物的总重量为基准,主体树脂的含量为5-90重量%,稀释剂的含量为2-80重量%,可在紫外光下固化的树脂的含量为0. 25-20重量%,光引发剂的含量为0. 1-5重量%,助剂的含量为0-10重量%。 11. A method of preparing the primer composition as claimed in claim, which comprises a resin body and a diluting solvent mixed, the resulting slurry was filtered, characterized in that the method further comprises adding a curable under ultraviolet light resin and photoinitiator and mixed well, wherein said curable resin is selected from ultraviolet light at an unsaturated urethane acrylate prepolymer is an aliphatic non-yellowing 2-6 functional groups, containing 2-6 polyester acrylate prepolymer functional groups or one or more epoxy acrylate prepolymer to the total weight of the primer composition, the content of the main resin is 5-90 wt%, content of 80% by weight of diluent, the content of the ultraviolet curable resin is at 0. 25-20 wt%, the content of the photoinitiator is 0.05 to 5 wt%, the content of adjuvants is 0 -10% by weight.
12.根据权利要求11所述的方法,其中,所述主体树脂、稀释剂、光引发剂和可在紫外光下固化的树脂混合的步骤为,将光引发剂与部分稀释剂混合,使光引发剂充分溶解,得到含有光引发剂的溶液;将主体树脂与部分稀释剂混合均勻,得到含有主体树脂的浆液;将可在紫外光下固化的树脂与部分稀释剂混合均勻,得到含有可在紫外光下固化的树脂的浆液;再将含有光引发剂的溶液、含有主体树脂的浆液、含有可在紫外光下固化的树脂的浆液混合均勻,最后加入剩余的稀释剂混合均勻。 12. The method of claim 11, wherein the main resin, a diluent, a photoinitiator and the step of curable resin under UV light for mixing the photoinitiator with some diluent agent, light initiator is sufficiently dissolved to obtain a solution containing a photoinitiator; the body portion diluent uniformly mixed with the resin to obtain a slurry containing a resin body; the ultraviolet curable resin at the portion diluent uniformly mixed to give containing the ultraviolet light curable resin slurry; then a solution containing the photoinitiator, the slurry containing the main resin, comprising mixing the slurry under UV curable resin uniformly, and finally adding the remaining diluent uniformly mixed.
13.根据权利要求12所述的方法,其中该方法还包括在加入剩余的稀释剂之前,在得到的含有光引发剂、主体树脂、稀释剂和可在紫外光下固化的树脂的浆液中,加入助剂、调节剂和调色剂,并混合均勻的步骤。 13. The method according to claim 12, wherein the method further comprises prior to adding the remaining diluent in a slurry containing a photoinitiator, binder, diluent and under UV light curable resin is obtained, adding additives, modifiers and the toner, and uniformly mixing step.
14.根据权利要求11所述的方法,其中,该方法包括(1)将光引发剂与部分稀释剂混合,搅拌至充分溶解;(¾将主体树脂与部分稀释剂混合均勻;C3)将可在紫外光下固化的树脂与部分稀释剂混合均勻;(4)将步骤(1)、(幻和(¾得到的产物混合;(¾继续加入或不加入助剂、调节剂和调色剂,并混合均勻;(6)降温,过滤得到的浆液;(7)继续加入剩余的稀释剂,混合均勻。 14. The method according to claim 11, wherein the method comprises (1) mixing a diluent and a photoinitiator portion, stirring until fully dissolved; (¾ the body portion diluent mixed with the resin; a C3) will be in the UV-curable resin mixed with a portion of the diluent; (4) the step (1), (magic and (¾ resulting product mixture; (¾ continue with or without added adjuvants, modifiers and the toner, and mixing uniformly; (6) cooling, filtering the resulting slurry; (7) continue adding the remaining diluent mixed.
15. 一种多层涂层,包括至少一个底涂层和面涂层,底涂层由底层涂料组合物形成,面涂层由紫外光固化涂料组合物形成,其特征在于,所述底层涂料组合物为权利要求1-10中任意一项所述的底层涂料组合物。 15. A multilayer coating comprising at least one basecoat and topcoat, an undercoat layer formed from the primer composition, a topcoat formed from a UV-curable coating composition, wherein said primer the composition of any of claims 1-10 for the primer composition according to claim.
CN 200510105310 2005-09-23 2005-09-23 Bottom coating composition, and its preparing method and multilayer coat CN1935917B (en)

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