JP2006321967A5 - - Google Patents
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- JP2006321967A5 JP2006321967A5 JP2005329814A JP2005329814A JP2006321967A5 JP 2006321967 A5 JP2006321967 A5 JP 2006321967A5 JP 2005329814 A JP2005329814 A JP 2005329814A JP 2005329814 A JP2005329814 A JP 2005329814A JP 2006321967 A5 JP2006321967 A5 JP 2006321967A5
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- Prior art keywords
- water
- general formula
- carboxylic acid
- inorganic
- acid
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 229920000642 polymer Polymers 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 13
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 12
- 239000003960 organic solvent Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000011780 sodium chloride Substances 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N iso-propanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 125000004435 hydrogen atoms Chemical class [H]* 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 16
- -1 foodstuffs Substances 0.000 description 16
- 239000002245 particle Substances 0.000 description 15
- 229920003171 Poly (ethylene oxide) Chemical class 0.000 description 9
- 235000014113 dietary fatty acids Nutrition 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 9
- 239000000194 fatty acid Substances 0.000 description 9
- 150000004665 fatty acids Chemical class 0.000 description 9
- 239000010419 fine particle Substances 0.000 description 9
- 239000010954 inorganic particle Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M Sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 150000001447 alkali salts Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 125000006353 oxyethylene group Chemical group 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-N propionic acid Chemical compound CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N Hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 229940047670 SODIUM ACRYLATE Drugs 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N TiO Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxyl anion Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 125000005395 methacrylic acid group Chemical group 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910001929 titanium oxide Inorganic materials 0.000 description 2
- 239000011882 ultra-fine particle Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- CAFAOQIVXSSFSY-UHFFFAOYSA-N 1-ethoxyethanol Chemical compound CCOC(C)O CAFAOQIVXSSFSY-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 235000019749 Dry matter Nutrition 0.000 description 1
- FDWREHZXQUYJFJ-UHFFFAOYSA-M Gold(I) chloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 description 1
- FEWJPZIEWOKRBE-XIXRPRMCSA-N Mesotartaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-XIXRPRMCSA-N 0.000 description 1
- MHNFDKSVERZGHK-UHFFFAOYSA-N N,N-diethylethanamine;2-methylprop-2-enoic acid Chemical compound CC(=C)C([O-])=O.CC[NH+](CC)CC MHNFDKSVERZGHK-UHFFFAOYSA-N 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 229960003975 Potassium Drugs 0.000 description 1
- QEEAPRPFLLJWCF-UHFFFAOYSA-K Potassium citrate Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 1
- BWILYWWHXDGKQA-UHFFFAOYSA-M Potassium propanoate Chemical compound [K+].CCC([O-])=O BWILYWWHXDGKQA-UHFFFAOYSA-M 0.000 description 1
- 229940074404 Sodium succinate Drugs 0.000 description 1
- HELHAJAZNSDZJO-UHFFFAOYSA-L Sodium tartrate Chemical compound [Na+].[Na+].[O-]C(=O)C(O)C(O)C([O-])=O HELHAJAZNSDZJO-UHFFFAOYSA-L 0.000 description 1
- 229960002167 Sodium tartrate Drugs 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Tris Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K Trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium(0) Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atoms Chemical group C* 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052803 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 238000001246 colloidal dispersion Methods 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 230000000249 desinfective Effects 0.000 description 1
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- YNQRWVCLAIUHHI-UHFFFAOYSA-L dilithium;oxalate Chemical compound [Li+].[Li+].[O-]C(=O)C([O-])=O YNQRWVCLAIUHHI-UHFFFAOYSA-L 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- HCDITHVDEPPNIL-UHFFFAOYSA-L dipotassium;propanedioate Chemical compound [K+].[K+].[O-]C(=O)CC([O-])=O HCDITHVDEPPNIL-UHFFFAOYSA-L 0.000 description 1
- ZDQYSKICYIVCPN-UHFFFAOYSA-L disodium butanedioate Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N ethylene glycol monomethyl ether Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- ZBKIUFWVEIBQRT-UHFFFAOYSA-N gold(1+) Chemical compound [Au+] ZBKIUFWVEIBQRT-UHFFFAOYSA-N 0.000 description 1
- 230000003301 hydrolyzing Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000460 iron oxide Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920001888 polyacrylic acid Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000001508 potassium citrate Substances 0.000 description 1
- 229960002635 potassium citrate Drugs 0.000 description 1
- 239000004331 potassium propionate Substances 0.000 description 1
- 235000010332 potassium propionate Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001433 sodium tartrate Substances 0.000 description 1
- 235000011004 sodium tartrates Nutrition 0.000 description 1
- UDWXLZLRRVQONG-UHFFFAOYSA-M sodium;hexanoate Chemical compound [Na+].CCCCCC([O-])=O UDWXLZLRRVQONG-UHFFFAOYSA-M 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 229960001367 tartaric acid Drugs 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 150000003627 tricarboxylic acid derivatives Chemical class 0.000 description 1
- 150000003628 tricarboxylic acids Chemical class 0.000 description 1
- 239000011791 tripotassium citrate Substances 0.000 description 1
- 235000015870 tripotassium citrate Nutrition 0.000 description 1
- 239000011778 trisodium citrate Substances 0.000 description 1
- 229940038773 trisodium citrate Drugs 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Description
顔料等無機物粒子の殆どは、水系で製造され、本来親水的である。しかしながら、水系反応で造る無機物粒子は、出来た瞬間から粒子成長が始まり、超微粒子として取り出すことが出来ないばかりか、水中では、極性の関係で、粒子同士の凝集が起こり易く再分散性も困難な分散物となる。又その後のハンドリングを容易にするために一度乾燥して粉末状にすると、粒子表面が活性化して、粒子同士が非常に強い凝集力で結びつき、更には極性の強い水への再分散性は一段と難しいものとなる。一方、顔料等無機物粒子を水系で用いる用途は無限に等しくあり、曰く水系塗料、絵具、化粧品、食料品、水系インク等である。近年、これらの用途に用いられる無機物粒子は、使用機器や使用法の高度化および精密化に伴い、一層微細で分散性の良いものが求められるようになった。これらの用途の一例を挙げるならば、例えば、化粧品のサンスクリーン剤のUVカット材として良く用いられ
る酸化チタンや酸化亜鉛は本来白色粉末で水に分散させると白濁溶液と成り、顔や体に塗布すると白っぽくなってしまうので、超微粒子化して、透明性を上げる方法が盛んに研究されている。また、インクジェット式プリンター用の顔料は微細なほど印刷像を鮮明にするので、これまで無機顔料は大き過ぎて用いられなかったが、最近耐候性を上げるために無機顔料が注目されており、微粒子化が盛んに検討されるようになった。しかしながら、上述の例では、無機物粒子を微粒子化して水へ分散させる為には非常に強力な粉砕力が必要であり、また分散化およびその後の再凝集を抑えるために多量の表面活性剤が必要である。(例えば、特許文献1を参照)これであると粒子の細かさにはおのずと限界が生じ、活性剤の種類と量によっては用途に制限が加えられているのが現状であり、更に水への分散が容易な無機物微粒子が求められている。
Most of inorganic particles such as pigments are produced in an aqueous system and are inherently hydrophilic. However, inorganic particles produced by water-based reactions begin to grow from the moment they are produced and cannot be extracted as ultrafine particles. In addition, in water, the particles tend to agglomerate with each other due to their polarity, making redispersibility difficult. A good dispersion. In order to facilitate the subsequent handling, once dried and powdered, the particle surface is activated, the particles are connected with a very strong cohesive force, and the redispersibility in polar water is further enhanced. It will be difficult. On the other hand, the use of inorganic particles such as pigments in water-based systems is infinitely equivalent to water-based paints, paints, cosmetics, foodstuffs, water-based inks and the like. In recent years, inorganic particles used in these applications have been required to be finer and more dispersible with the advancement and refinement of equipment and methods of use. To give an example of these applications, for example, titanium oxide and zinc oxide, which are often used as UV-cutting materials for cosmetic sunscreen agents, are essentially white powders that form a cloudy solution that is applied to the face and body. Then, since it becomes whitish, methods for making ultrafine particles and increasing transparency have been actively studied. Moreover, since the pigments for the ink jet printer provides clear printed image finer particles, an inorganic pigment was not used in too large so far, and inorganic pigments are noted for raising the recent weather resistance, fine particles As a result, it has been actively studied. However, in the above example, a very strong crushing force is required to make inorganic particles finely dispersed in water, and a large amount of surfactant is required to suppress dispersion and subsequent reaggregation. It is. (For example, refer to Patent Document 1) In this case, there is a limit to the fineness of the particles, and the use is limited depending on the type and amount of the active agent. There is a demand for inorganic fine particles that can be easily dispersed.
本発明の無機粉体複合体は、無機物微粒子と一般式(1)に表されるカルボン酸誘導体及び/又は一般式(1)に表されるカルボン酸誘導体重合物とからなることを特徴とする。ここで、無機物微粒子と一般式(1)に表されるカルボン酸誘導体及び/又は一般式(1)に表されるカルボン酸誘導体重合物とからなる本発明の無機粉体複合体は、前記2成分の複合化により、脱離分子を有することも許容する。該脱離分子としては、水、アルコール、アルカリ金属塩、アルカリ金属の水酸化物などが例示できる。ここで粒子径とは無機物微粒子の最大径を指し、大きさが0.1μm以下である。この粒子径の範囲は使途によって異なるが、着色を目的とする場合概ね0.1〜0.01μm程度であり、透明性を重要視して機能を紫外線吸収や殺菌剤などに求める場合概ね0.01〜0.001μmである。さらに無機物微粒子は本発明の無機粉体複合体中で互いに独立した状態で存在する。
この様な微粒子の粒子径および組成中での存在状態は無機物の種類や後段で詳述する製造方法によって調節される。次に、本発明の無機物微粒子と一般式(1)に表されるカルボン酸誘導体及び/又はその一般式(1)に表されるカルボン酸誘導体の重合物との組成割合は無機物微粒子の60%以上が望ましい。この割合は無機物微粒子の種類や粒子径によって、水への分散性が異なってくるので一概に言えないが、好ましくは60%〜99%であり、より好ましくは85%〜99%である。ここに用いられる無機物の種類は特に規定しないが、あえて記述するならば亜鉛、鉄、アルミニウム、マグネシウム、チタニウム、バリウム、マンガン、セリウム、コバルト、カルシウム、カドミウム、ストロンチウム、銅、クロミニウム、ジルコニウム、金、銀であり、これらは単体もしくは酸化物又は/及び水酸化物の形で用いられ、1種又は2種以上の複合物である。
The inorganic powder composite of the present invention comprises inorganic fine particles and a carboxylic acid derivative represented by the general formula (1) and / or a carboxylic acid derivative polymer represented by the general formula (1). . Here, the inorganic powder composite of the present invention comprising the inorganic fine particles and the carboxylic acid derivative represented by the general formula (1) and / or the carboxylic acid derivative polymer represented by the general formula (1) is the above-mentioned 2 It is also allowed to have a leaving molecule due to the conjugation of the components. Examples of the leaving molecule include water, alcohol, alkali metal salt, alkali metal hydroxide and the like. Here, the particle diameter refers to the maximum diameter of the inorganic fine particles, and the size is 0.1 μm or less. This range of particle child size varies depending Shito, for the purpose of coloration is generally about 0.1~0.01Myuemu, generally when seeking functions such as an ultraviolet absorber or a disinfectant to emphasize transparency 0 0.01 to 0.001 μm. Further, the inorganic fine particles exist in an independent state in the inorganic powder composite of the present invention.
Present state of the grain terminal size and in the composition of such particles is regulated by the manufacturing method detailed in inorganic type and subsequent stage. Next, the composition ratio of the inorganic fine particles of the present invention to the carboxylic acid derivative represented by the general formula (1) and / or the polymer of the carboxylic acid derivative represented by the general formula (1) is 60% of the inorganic fine particles. The above is desirable. This ratio cannot be generally stated because the dispersibility in water varies depending on the type and particle size of the inorganic fine particles, but it is preferably 60% to 99%, more preferably 85% to 99%. The kind of inorganic substance used here is not particularly defined, but if it is described intentionally, zinc, iron, aluminum, magnesium, titanium, barium, manganese, cerium, cobalt, calcium, cadmium, strontium, copper, chromium, zirconium, gold, It is silver, and these are used in the form of a simple substance or an oxide or / and a hydroxide, and are one kind or a composite of two or more kinds.
ここで用いられる一般式(1)に表されるカルボン酸誘導体にはモノカルボン酸、ジカルボン酸及びトリカルボン酸のカリウム、ナトリウム、リチウムおよびアミン類等のアルカリ塩またはポリオキシエチレン付加物があり、これらの内、脂肪酸炭素数10以下が水との混和性に優れ、特に望ましい。例を挙げるならばアルカリ塩には酢酸ナトリウム、プロピオン酸カリウム、アクリル酸ナトリウム、メタクリル酸トリエチルアミン、カプロン
酸ナトリウム、シュウ酸リチウム、マロン酸カリウム、コハク酸ナトリウム、クエン酸カリウム、酒石酸ナトリウム等があり、ポリオキシエチレン付加物にはポリオキシエチレンアクリレート、ポリオキシエチレンメタクリレート等がある。又一般式(1)に表されるカルボン酸誘導体の重合物にはアルカリ塩として、ポリアクリル酸ナトリウム、ポリアクリル酸トリエタノールアミン、ポリメタクリル酸ナトリウム、ポリメタクリル酸トリエチルアミン等があり、ポリオキシエチレン付加物としてはオキシエチレン鎖23モル以下のポリオキシエチレンアクリルポリマーやポリオキシエチレンメタクリルポリマーがある。これらの重合物の重合度は1000以下が好ましい。
The carboxylic acid derivatives represented by the general formula (1) used here include alkali salts or polyoxyethylene adducts of potassium, sodium, lithium and amines of monocarboxylic acid, dicarboxylic acid and tricarboxylic acid. Of these, fatty acid carbon number of 10 or less is particularly desirable because of its excellent miscibility with water. For example, alkali salts include sodium acetate, potassium propionate, sodium acrylate, triethylamine methacrylate, sodium caproate, lithium oxalate, potassium malonate, sodium succinate, potassium citrate , sodium tartrate, etc. Examples of the polyoxyethylene adduct include polyoxyethylene acrylate and polyoxyethylene methacrylate. Polymers of carboxylic acid derivatives represented by the general formula (1) include sodium acrylate, polyacrylate triethanolamine, polysodium methacrylate, polyethyltriethylamine, and the like as alkali salts. Examples of the adduct include polyoxyethylene acrylic polymer and polyoxyethylene methacrylic polymer having 23 mol or less of oxyethylene chain. The polymerization degree of these polymers is preferably 1000 or less.
(2)本発明の無機粉体複合体の製造方法
本発明の無機粉体複合体の製造方法は水と水可溶性有機溶媒との混合液中に低級脂肪酸またはその誘導体または低級脂肪酸重合物またはその誘導体と金属塩とを溶解させ、これを中和または還元し、必要によっては重合することを特徴とする。一般的に、水系で金属塩を加水分解して水酸化物や酸化物を造る工程で、少量又は多量の有機溶媒を混和させると、金属塩の加水分解物は酸化物になることが知られている。本発明の製造方法において用いられる水可溶性有機溶媒は金属塩の加水分解物を直接酸化物へ導くために用いられ、水と混和する有機溶媒ならばほとんどのものが使用可能である。この様な有機溶媒には、メタノール、エタノール、イソプロパノールの様なアルコール類、エタンジオール、プロパンジオール、ブタンジオールの様なジオール類、アセトンの様なケトン類、テトラヒドロフランの様なフラン類、分子量200以下のエチレングリコール類、メトキシエタノル、エトキシエタノールのようなエチレングリコールモノエーテル類が上げられる。この様な水可溶性有機溶媒の混合割合は、低級脂肪酸またはその誘導体または低級脂肪酸重合物またはその誘導体または金属塩の種類によって異なり、また用いる水可溶性有機溶媒や反応副生成物の種類によっても異なるので一概には規定できないが、概ね水:水可溶性有機溶媒が重量比で1:9〜9:1の範囲である。反応終了後は水などで洗浄し過剰の塩を除去することが好ましい。
本発明の製造方法に用いられる低級脂肪酸またはその誘導体または低級脂肪酸重合物またはその誘導体は一般式(1)に表されるカルボン酸誘導体には上述で詳記したように、低級脂肪酸としてはモノカルボン酸、ジカルボン酸及びトリカルボン酸またはポリオキシエチレン付加物があり、これらの内炭素数10以下が水及び水可溶性有機溶媒との混和性に優れ、特に望ましい。例を挙げるならば酢酸、プロピオン酸、アクリル酸、メタクリル酸、カプロン酸、シュウ酸、マロン酸、コハク酸、クエン酸、酒石酸等があり、これらの誘導体にはポリオキシエチレンアクリレート、ポリオキシエチレンメタクリレート等のオキシエチレン鎖23モル以下のポリオキシエチレン付加物がある。又低級脂肪酸重合物にはポリアクリル酸、ポリメタクリル酸等があり、その誘導体としてはポリオキシエチレン付加物のオキシエチレン鎖23モル以下のポリオキシエチレンアクリルポリマーやポリオキシエチレンメタクリルポリマーがある。
(2) Manufacturing method of inorganic powder composite of the present invention The manufacturing method of the inorganic powder composite of the present invention includes a lower fatty acid or a derivative thereof, a lower fatty acid polymer or a mixture thereof in a mixed liquid of water and a water-soluble organic solvent. The derivative and the metal salt are dissolved, neutralized or reduced, and polymerized as necessary. In general, it is known that when a small amount or a large amount of an organic solvent is mixed in a process of hydrolyzing a metal salt in an aqueous system to produce a hydroxide or oxide, the hydrolyzate of the metal salt becomes an oxide. ing. The water-soluble organic solvent used in the production method of the present invention is used for directing the hydrolyzate of the metal salt directly to the oxide, and almost any organic solvent miscible with water can be used. Examples of such organic solvents include alcohols such as methanol, ethanol and isopropanol, diols such as ethanediol, propanediol and butanediol, ketones such as acetone, furans such as tetrahydrofuran, and a molecular weight of 200 or less. And ethylene glycol monoethers such as methoxyethanol and ethoxyethanol. The mixing ratio of such a water-soluble organic solvent varies depending on the type of the lower fatty acid or its derivative or the lower fatty acid polymer, its derivative or metal salt, and also varies depending on the type of the water-soluble organic solvent or reaction by-product used. Although it cannot be generally defined, the weight ratio of water: water-soluble organic solvent is generally in the range of 1: 9 to 9: 1. After completion of the reaction it is preferred to remove excess salts were washed with water or the like.
The lower fatty acid or derivative thereof or the lower fatty acid polymer or derivative thereof used in the production method of the present invention is a monocarboxylic acid as the lower fatty acid as described in detail above for the carboxylic acid derivative represented by the general formula (1). There are acids, dicarboxylic acids and tricarboxylic acids or polyoxyethylene adducts, and those having 10 or less carbon atoms are particularly desirable because of their excellent miscibility with water and water-soluble organic solvents. Examples include acetic acid, propionic acid, acrylic acid, methacrylic acid, caproic acid, oxalic acid, malonic acid, succinic acid, citric acid, tartaric acid, etc. These derivatives include polyoxyethylene acrylate, polyoxyethylene methacrylate There are polyoxyethylene adducts having 23 moles or less of oxyethylene chains. Examples of the lower fatty acid polymer include polyacrylic acid and polymethacrylic acid, and derivatives thereof include polyoxyethylene acrylic polymer and polyoxyethylene methacrylic polymer having 23 mol or less of oxyethylene chain of polyoxyethylene adduct.
イソプロパノール(100g)と水(300g)の混合溶媒に塩化金(1g)を溶解させ、A液とした。別に水(100g)にクエン酸3ナトリウム(0.65g)を溶解させ、B液とした。A液をリフラックス温度まで昇温させ、攪拌下B液を滴下し、同温度で1時間持続させ、冷却した。冷後、水を用いて、デカンテーション、濾過を3回繰り返し、得られた沈殿物を90℃で4時間乾燥させ、乾燥物(0.6g)を得た。このものは70%がコロイダル金であった。
Solution A was prepared by dissolving gold chloride (1 g) in a mixed solvent of isopropanol (100 g) and water (300 g). Separately, trisodium citrate (0.65 g) was dissolved in water (100 g) to obtain solution B. The liquid A was heated to the reflux temperature, the liquid B was added dropwise with stirring, and the liquid was maintained at the same temperature for 1 hour and cooled. After cooling, decantation and filtration were repeated three times using water, and the resulting precipitate was dried at 90 ° C. for 4 hours to obtain a dried product (0.6 g). This was 70% colloidal gold.
実施例1の乾燥物(0.58g)を水(300ml)とともに、500mlビーカーに入れて、プロペラ型攪拌機(羽根長4cm)、回転数200rpmで1時間攪拌して、分散させ、分散液Aとする。分散液Aを100g採取し、これに水を加えて全体を1000gとし、水性ペイント1Aを得た。分散液Aの残りを、ディスパー型攪拌機(羽根長3cm)による、回転数6000rpmで6分間の攪拌で再分散した後、100g採取し、これに水を加えて全体を1000gとし、水性ペイント1Bを得た。
Of dry matter Example 1 (0.58 g) with water (300 ml), placed in a 500ml beaker, propeller-type stirrer (blade length 4 cm), and stirred for 1 hour at a rotation speed of 200 rpm, were dispersed, the dispersion A And 100 g of the dispersion A was collected, and water was added to make a total of 1000 g to obtain an aqueous paint 1A. The rest of the dispersion A was redispersed by stirring for 6 minutes at a rotational speed of 6000 rpm with a disper-type stirrer (blade length 3 cm), and 100 g was collected, and water was added to make a total of 1000 g. Obtained.
以下に示す手順で、比較例1〜4を作成し、レーザー回折・散乱粒度分布計(湿式)を用いて、前記水性ペイント1A〜5A及び1B〜5Bとともに、平均粒子径(μm)を計測した。結果を表
1に示す。表より、本発明の製造方法による本発明の組成物を用いた水性ペイント1A〜5A及び1B〜5Bは、分散時の攪拌の強さに関係なく、極めて弱い攪拌力でも容易に1次粒子まで分散していることが分かる。このことは粉体状態においても無機物粒子同士が互いに独立して存在することを示す。これに対して、比較例1〜4の市販の無機物粒子は強烈な攪拌力を与えてもカタログ値まで到達できていない。即ち比較例1〜4の市販の無機物粒子は粉体状態において強烈な凝集体を作り、容易に分散させられないことを示す。
According to the following procedure, to create a comparative example 1-4, by using a laser diffraction scattering particle size distribution meter (wet), the with an aqueous paints 1A to 5 A and 1B ~5B, measuring an average particle diameter (mu m) did. The results are shown in Table 1. From the table, water-based paints 1A to 5A and 1B to 5B using the composition of the present invention by the production method of the present invention can easily reach the primary particles even with extremely weak stirring force regardless of the stirring strength at the time of dispersion. It can be seen that they are dispersed. This indicates that the inorganic particles exist independently of each other even in the powder state. On the other hand, the commercially available inorganic particles of Comparative Examples 1 to 4 have not reached the catalog value even when intense stirring force is applied. That is, the commercially available inorganic particles of Comparative Examples 1 to 4 form strong aggregates in the powder state and indicate that they cannot be easily dispersed .
<比較例1>
市販の微粒子酸化亜鉛粉末(平均粒子径=0.03μm カタログ値)を0.15g採取し、0.01%ポリアクリル酸ナトリウム(重合度3000)、水(300ml)とともに500mlビーカーに入れて、プロペラ型攪拌機(羽根長4cm)、回転数200rpmで1時間攪拌し、分散させ、分散液Fとする。分散液Fを100g採取し、これに水を加えて全体を1000gとし、比較例1Aとした。分散液Fの残りを条件2で再分散した後、100g採取し、これに水を加えて全体を1000gとし、比較例1Bを得た。
<Comparative Example 1>
Commercially available fine zinc oxide powder (average particle diameter = 0.03 microns m catalog value) 0.15g harvested, 0.01% sodium polyacrylate (degree of polymerization 3000), placed in a 500ml beaker with water (300 ml), propeller stirrer (blade length 4 cm), and stirred for 1 hour at a rotation speed of 200 rpm, were dispersed, and the dispersion liquid F. 100 g of the dispersion F was collected, and water was added thereto to make a total of 1000 g, which was designated as Comparative Example 1A. After redispersing the rest of the dispersion F under Condition 2, 100 g was collected, and water was added thereto to make a total of 1000 g to obtain Comparative Example 1B.
<比較例2>
市販の微粒子酸化チタン粉末(平均粒子径=0.023μm カタログ値)を0.15g採取し、比較例1と同様に処理し、比較例2Aと比較例2Bとを得た。
<Comparative example 2>
Commercially available fine titanium oxide powder (average particle size = 0.023μ m catalog value) 0.15g collected and treated in the same manner as in Comparative Example 1 was obtained with Comparative Example 2B and Comparative Example 2A.
<比較例3>
市販の微粒子べんがら粉末(平均粒子径=0.06μm カタログ値)を0.15g採取し、比較例1と同様に処理し、比較例3Aと比較例3Bとを得た。
<Comparative Example 3>
Commercially available fine iron oxide powder (average particle size = 0.06μ m catalog value) 0.15g collected and treated in the same manner as in Comparative Example 1 was obtained with Comparative Example 3B and Comparative Example 3A.
<比較例4>
市販品の金コロイド分散液(平均粒子径=0.01μm カタログ値)を10×10mmセルを用いて、積分球付き分光器で測定するとき、波長700nmの透過率が80%になるように、水で希釈し、比較例4Bを得た。
<Comparative Example 4>
Gold colloidal dispersion of a commercial product (average particle size = 0.01 micron m catalog value) using a 10 × 10 mm cell, when measured in an integrating sphere with the spectrometer, as the transmittance of the wavelength 700nm is 80% And diluted with water to obtain Comparative Example 4B.
Claims (2)
の製造方法
A lower carboxylic acid represented by the general formula (1) and / or the lower carboxylic acid polymer and / or the general formula (1) represented by the general formula (1) in a mixed solution of water and a water-miscible organic solvent. was represented and dissolved Shikichu X is a carboxylic acid derivative polymer and a metal salt other than hydrogen, which neutralized or reduced, to claim 1-6 any one obtained by polymerization by the need For manufacturing the inorganic powder composite according to claim 1
The method for producing an inorganic powder composite according to claim 11 , wherein the water-miscible organic solvent is methanol, ethanol, or isopropanol alone or as a mixture.
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