TW202002937A - 含嵌段共聚物之化妝料用無機粒子分散液 - Google Patents
含嵌段共聚物之化妝料用無機粒子分散液 Download PDFInfo
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- TW202002937A TW202002937A TW108118321A TW108118321A TW202002937A TW 202002937 A TW202002937 A TW 202002937A TW 108118321 A TW108118321 A TW 108118321A TW 108118321 A TW108118321 A TW 108118321A TW 202002937 A TW202002937 A TW 202002937A
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- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 41
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Abstract
本發明提供一種包含能夠使無機粒子之分散性提昇之新穎嵌段共聚物之無機粒子分散液、尤其是化妝料用無機粒子分散液。
本發明之無機粒子分散液、尤其是化妝料用無機粒子分散液包含:分散介質、分散於該分散介質中之無機粒子、以及含有疏水性鏈段及親水性鏈段之嵌段共聚物,上述疏水性鏈段含有包含選自下述式1及式2之至少一種單體之單體單元,上述親水性鏈段之至少一部分吸附於上述無機粒子,且上述疏水性鏈段相對於無機粒子向外側配向;
式1中,R1
為氫或甲基,R2
為氫或氟,m為0~6之整數,且n為1~15之整數,
式2中,R1
為氫或甲基,R3
及R4
分別獨立地為碳原子數1~6之烷基,m為1~6之整數,且p為5~70之整數。
Description
本發明係關於一種包含新穎嵌段共聚物之無機粒子分散液、尤其是化妝料用無機粒子分散液。
近年來,以防污性、防霧性、無機粒子等之分散性之賦予等為目的,研究有使用聚合物材料等之各種表面改質技術。
專利文獻1中揭示有一種噴墨記錄用油墨,其含有水、水溶性化合物、顏料、及使顏料分散之酸值100 mgKOH/g以上160 mgKOH/g以下之(甲基)丙烯酸酯系無規共聚物。
專利文獻2中揭示有一種嵌段共聚物,其至少含有疏水性鏈段及親水性鏈段,親水性鏈段至少包含陽離子性單體及陰離子性單體之單體單元,且能夠賦予各種構件防霧性、防靜電性等。
專利文獻3中揭示有一種顏料分散液,其係含有顏料、液體介質及高分子分散劑者,高分子分散劑係A-B或A-B-C所表示之嵌段共聚物,A嵌段及C嵌段係包含不具有胺基及羥基之乙烯性不飽和單體之聚合物嵌段,B嵌段係在包含具有縮水甘油基或異氰酸基之單體之聚合物嵌段上經由縮水甘油基或異氰酸基鍵結胺基化合物及具有羥基之化合物之任一者而成的聚合物嵌段。
[先前技術文獻]
[專利文獻]
[專利文獻1]日本專利特開2015-052058號公報
[專利文獻2]日本專利特開2017-179112號公報
[專利文獻3]國際公開第2010/016523號
[發明所欲解決之問題]
例如,於防曬用化妝料之領域中,為了使紫外線散射而使用氧化鈦等無機粒子。無機粒子表面呈現親水性,例如,若調配於油相中則易凝集沈澱,故對該領域中之無機粒子,亦一般應用用以使分散性提昇之表面處理。然而,先前之表面處理中,存在無法充分地防止無機粒子之凝集及沈澱之情形。
因此,本發明之主題在於提供一種包含能夠使無機粒子之分散性等提昇之新穎嵌段共聚物之無機粒子分散液、尤其是化妝料用無機粒子分散液。
[解決問題之技術手段]
<態樣1>
一種化妝料用無機粒子分散液,其包含:分散介質、分散於該分散介質中之無機粒子、以及含有疏水性鏈段及親水性鏈段之嵌段共聚物,
上述疏水性鏈段含有包含選自下述式1及式2之至少一種單體之單體單元,
上述親水性鏈段之至少一部分吸附於上述無機粒子,且上述疏水性鏈段相對於無機粒子向外側配向;
[化1]…式1
式1中,
R1
為氫或甲基,
R2
為氫或氟,
m為0~6之整數,且
n為1~15之整數,
[化2]…式2
式2中,
R1
為氫或甲基,
R3
及R4
分別獨立地為碳原子數1~6之烷基,
m為1~6之整數,且
p為5~70之整數。
<態樣2>
如態樣1所記載之分散液,其中上述親水性鏈段含有包含選自下述式3~式9之至少一種單體之單體單元。
[化3]…式3
式3中,
R1
為氫或甲基,
[化4]…式4
式4中,
R1
為氫或甲基,
m1
及m2
分別獨立地為1~6之整數,且
R5
分別獨立地為碳原子數1~6之烷基,
[化5]…式5
式5中,
R1
為氫或甲基,
m為1~6之整數,且
R6
分別獨立地為碳原子數1~6之烷基,
[化6]…式6
式6中,
R1
為氫或甲基,
m為1~6之整數,且
R7
分別獨立地為碳原子數1~6之烷基,
[化7]…式7
式7中,
R1
為氫或甲基,
m為1~6之整數,且
R8
分別獨立地為水解並進行交聯反應之官能基,
[化8]…式8
R1
為氫或甲基,
q為1~20之整數,且
R9
為碳原子數1~6之烷基,
[化9]…式9。
<態樣3>
如態樣1或2所記載之分散液,其中上述嵌段共聚物中,上述疏水性鏈段之比率為50~99莫耳%,且上述親水性鏈段之比率為1~50莫耳%。
<態樣4>
如態樣1至3中任一項所記載之分散液,其中上述無機粒子及上述嵌段共聚物之比率以質量比計為100:5~100:40。
<態樣5>
如態樣1至4中任一項所記載之分散液,其中上述無機粒子為選自氧化鈦粒子、氧化鋅粒子、氧化鈰粒子、氧化鐵粒子、及雲母粒子之至少一種。
<態樣6>
一種無機粒子粉末,其係使如態樣1至5中任一項所記載之分散液乾燥而成。
<態樣7>
一種防曬用化妝料,其包含如態樣1至5中任一項所記載之分散液、或如態樣6所記載之無機粒子粉末。
<態樣8>
如態樣7所記載之化妝料,其SPF值為15以上,且黏度為50000 Pa·s以下。
<態樣9>
如態樣7或8所記載之化妝料,其相對於化妝料之總量,包含上述無機粒子5質量%以上50質量%以下。
[發明之效果]
根據本發明,可提供一種包含能夠使無機粒子之分散性等提昇之新穎嵌段共聚物之無機粒子分散液、尤其是化妝料用無機粒子分散液。
以下針對本發明之實施形態進行詳述。本發明並不限定於以下之實施形態,可於發明之主旨之範圍內進行各種變化而實施。
本發明之無機粒子分散液、尤其是化妝料用無機粒子分散液包含:分散介質、分散於該分散介質中之無機粒子、以及含有疏水性鏈段及親水性鏈段之嵌段共聚物,疏水性鏈段含有包含選自下述式1及式2之至少一種單體之單體單元,親水性鏈段之至少一部分吸附於無機粒子,且疏水性鏈段相對於無機粒子向外側配向。
[化10]…式1
式1中,
R1
為氫或甲基,
R2
為氫或氟,
m為0~6之整數,且
n為1~15之整數,
[化11]…式2
式2中,
R1
為氫或甲基,
R3
及R4
分別獨立地為碳原子數1~6之烷基,
m為1~6之整數,且
p為5~70之整數。
認為此種無機粒子分散液之分散性等優異之作用原理如下,但不限定於原理。
例如,於由疏水性之單體及親水性之單體製作無規共聚物之情形時,該共聚物之疏水性之部位與親水性之部位無規地配置於共聚物中,故無規共聚物整體發揮疏水性與親水性混合之中間性之性能。另一方面,於嵌段共聚物之情形,包含疏水性之單體之疏水性鏈段與包含親水性之單體之親水性鏈段於共聚物中分別形成,故能夠賦予嵌段共聚物疏水性及親水性此等性質分別不同之部分。
例如,於將包含利用先前一般使用之低分子型表面處理劑作表面處理之無機粒子的油分調配於化妝料等進行乳化之情形時,易產生凝集及沈澱。認為該情況之原因在於,該低分子型之表面處理劑之一部分容易自無機粒子脫附並轉移至化妝料中,於無機粒子表面產生裸露之部分,故欠缺穩定性。另一方面,認為本發明之嵌段共聚物具有疏水性鏈段及親水性鏈段,其中親水性鏈段之至少一部分經由複數個吸附點與無機粒子吸附,或者以勾纏之方式吸附於無機粒子表面,有時於無機粒子與親水性鏈段之間亦產生氫鍵等,故該共聚物變得不易自無機粒子脫附,而使無機粒子之分散穩定性提昇。
又,例如,於嵌段共聚物之親水性鏈段由上述式7之單體形成之情形時,該共聚物吸附於經表面處理之無機粒子之表面並水解,至少於共聚物之親水性鏈段相互之間形成交聯結構。認為具有該交聯結構之共聚物變得易勾纏於無機粒子,故共聚物不易自無機粒子脫附。又,無機粒子於其表面具有羥基之情形時,親水性鏈段中之水解並進行交聯反應之官能基亦與無機粒子表面之羥基反應並鍵結。認為其結果為,共聚物更加不易自無機粒子脫附。
認為於油相中,共聚物中之疏水性鏈段例如如圖2所示,呈現梳狀結構,且相對於無機粒子朝外側配向。認為其結果為,與如圖1之(b)及(c)所示之無規共聚物及低分子型之表面處理劑相比,立體阻礙作用提昇,能夠更進一步抑制油相中之無機粒子之凝集及沈澱,故無機粒子之分散性進一步提昇。
又,例如,於油中水型之化妝料中調配無機粒子之情形時,利用先前之表面處理所得之無機粒子一般存在使化妝料之黏度大幅度增加之傾向,但由本發明之嵌段共聚物作表面處理之無機粒子不會使化妝料之黏度大幅度增加。
認為例如利用無規共聚物而經表面處理之無機粒子如圖1之(b)所示,呈現親水性及疏水性之部分纏住粒子之結構,立體阻礙作用較低,基於疏水部分之與油相之親和層較薄,故粒子彼此靠近地分散於油相中。
又,認為利用先前之低分子型表面處理劑作表面處理之無機粒子亦如圖1之(c)所示,疏水部分較短,立體阻礙作用較低,基於疏水部分之與油相之親和層較薄,故粒子彼此靠近地分散於油相中。認為其結果為,利用該等材料而經表面處理之無機粒子呈現油緊密地堵塞於粒子間之狀態,故使化妝料等之黏度增加。
另一方面,認為由本發明之嵌段共聚物作表面處理之無機粒子之基於疏水性鏈段之與油相之親和層如圖1之(a)所示,較無規共聚物及低分子型之表面處理劑之構成更厚地覆蓋,粒子彼此相對較遠地分散,故粒子間存在之油能夠更自由地流動。認為其結果為,能夠抑制化妝料等之黏度增加。
因此,認為例如若利用本發明之嵌段共聚物對氧化鈦等進行表面處理,則能夠不使防曬用化妝料等之黏度大幅度上升,而分散性良好地大量調配該粒子,故能夠使對皮膚之塗佈性、防曬性能等性能提昇。
《嵌段共聚物》
本發明之嵌段共聚物考慮無機粒子之分散性、調配無機粒子之化妝料等之低黏度化等,可將疏水性鏈段之比率設為50莫耳%以上、55莫耳%以上或60莫耳%以上,又,可設為99莫耳%以下、95莫耳%以下或90莫耳%以下。考慮朝無機粒子之吸附性等,可將親水性鏈段之比率設為1莫耳%以上、5莫耳%以上或10莫耳%以上,又,可設為50莫耳%以下、45莫耳%以下或40莫耳%以下。
關於本發明之嵌段共聚物之分子量,並無特別限定,例如,作為凝膠滲透層析儀測定之聚苯乙烯換算之數量平均分子量,可設為1,000~80,000之範圍,較佳為5,000~20,000之範圍。又,作為數量平均分子量與重量平均分子量之比即分子量分佈,可設為1.05~5之範圍,較佳為1.05~1.7之範圍。
<疏水性鏈段>
疏水性鏈段中之包含選自式1及式2之至少一種單體之單體單元可考慮與調配無機粒子之分散介質之親和性等適當選定。
式1中,R1
為氫或甲基,R2
為氫或氟,m為0~6之整數,且n為1~15之整數。就分散性、低黏度化等性能之表現性等觀點而言,R1
較佳為甲基,R2
較佳為氫或氟,m較佳為1~3之整數,n較佳為4以上、6以上或8以上之整數,又,較佳為14以下、13以下或12以下之整數。此處,式1中之(CH2
)m
及(CR2 2
)n
之部位可為直鏈狀或分支狀之任一者,較佳為直鏈狀。
式2中,R1
為氫或甲基,R3
及R4
分別獨立地為碳原子數1~6之烷基,m為1~6之整數,且p為5~70之整數。就分散性、低黏度化等觀點而言,式2之R1
及R3
較佳為甲基,R4
較佳為丁基,m較佳為1~3之整數,p較佳為6以上、8以上或10以上之整數,又,較佳為60以下、50以下或40以下之整數。此處,式2中之(CH2
)m
之部位可為直鏈狀或分支狀之任一者,較佳為直鏈狀。
<親水性鏈段>
未經表面處理之無機粒子一般其表面呈現親水性,故嵌段共聚物中之親水性之鏈段能夠吸附於無機粒子之表面。因此,構成該鏈段之單體只要為能夠溶解於水之親水性單體即可,可為任意者,例如,可使用具有以羥基、醯胺基、硫酸基、磺酸基、羧酸基、氧乙烯基、吡啶基等為代表之親水性基之單體,但並不限定於以上。
作為構成親水性鏈段之單體,具體而言,例如,可使用選自式3~式9之至少一種單體。包含該等單體之單體單元可考慮與無機粒子之吸附性等而適當選擇,其中,就能夠與無機粒子牢固地吸附或鍵結之方面而言,較佳為式3或式7之單體。
(式4之單體)
於以下之式4之單體中,
[化15]…式4
R1
為氫或甲基,m1
及m2
分別獨立地為1~6之整數,且R5
分別獨立地為碳原子數1~6之烷基。就嵌段共聚物之聚合性或朝無機粒子之吸附性等觀點而言,R1
及R5
較佳為甲基,m1
及m2
較佳為分別獨立地為1~3之整數。此處,式4中之(CH2
)m1
及(CH2
)m2
之部位可為直鏈狀或分支狀之任一者,較佳為直鏈狀。
(式5之單體)
於以下之式5之單體中,
[化16]…式5
R1
為氫或甲基,m為1~6之整數,且R6
分別獨立地為碳原子數1~6之烷基。就嵌段共聚物之聚合性或朝無機粒子之吸附性等觀點而言,R1
及R6
較佳為甲基,m較佳為1~3之整數。此處,式5中之(CH2
)m
之部位可為直鏈狀或分支狀之任一者,較佳為直鏈狀。
(式6之單體)
於以下之式6之單體中,
[化17]…式6
R1
為氫或甲基,m為1~6之整數,且R7
分別獨立地為碳原子數1~6之烷基。就嵌段共聚物之聚合性或朝無機粒子之吸附性等觀點而言,R1
及R7
較佳為甲基,m較佳為1~3之整數。此處,式6中之(CH2
)m
之部位可為直鏈狀或分支狀之任一者,較佳為直鏈狀。
(式7之單體)
於以下之式7之單體中,
[化18]…式7
R1
為氫或甲基,m為1~6之整數,且R8
分別獨立地為水解並進行交聯反應之官能基。就嵌段共聚物之聚合性或朝無機粒子之吸附性等觀點而言,R1
較佳為甲基,R8
較佳為選自氫原子、烷氧基、鹵素原子、醯氧基及胺基之至少一種,其中,更佳為甲氧基或乙氧基,m較佳為1~3之整數。此處,式7中之(CH2
)m
之部位可為直鏈狀或分支狀之任一者,較佳為直鏈狀。
(任意之單體)
本發明之嵌段共聚物只要為不損害本發明之效果之範圍,則亦可含有除上述式1~式9之單體以外之單體作為構成單體。含量可設為構成單體總量之30莫耳%以下、20莫耳%以下、10莫耳%以下、或5莫耳%以下之範圍。作為該單體,例如可列舉:丙烯醯胺、甲基丙烯醯胺(methacrylamide)、甲基丙烯醯胺(methylacrylamide)、甲基甲基丙烯醯胺、二甲基甲基丙烯醯胺、乙基丙烯醯胺、乙基甲基丙烯醯胺、二乙基甲基丙烯醯胺、N-異丙基丙烯醯胺、N-乙烯基吡咯啶酮、ε-己內醯胺、乙烯醇、順丁烯二酸酐、甲基丙烯酸N,N'-二甲胺基乙酯、二烯丙基二甲基銨氯化物、丙烯酸烷基酯、甲基丙烯酸烷基酯、N,N'-二甲基丙烯醯胺、苯乙烯等。
<嵌段共聚物之製造方法>
本發明之嵌段共聚物可藉由公知之活性自由基聚合法而獲得。例如,可使用選自上述式1及式2之至少一種單體,藉由活性自由基聚合法形成疏水性鏈段,其次,使用親水性單體,藉由活性自由基聚合法形成親水性鏈段,獲得嵌段共聚物。或者,可使用親水性單體,藉由活性自由基聚合法形成親水性鏈段,其次,使用選自上述式1及式2之至少一種單體,藉由活性自由基聚合法形成疏水性鏈段,獲得嵌段共聚物。
活性自由基聚合法係藉由於先前之自由基聚合法中添加觸媒或鏈轉移劑等而控制末端活性自由基之反應性,近似活性地進行聚合之方法。與通常之自由基聚合相比,能夠使分子量分佈狹窄,亦能夠控制分子量。作為公知之活性自由基聚合法,具體而言,可列舉:國際公開第2010/016523號等所揭示之使用非金屬觸媒之活性自由基聚合法、國際公開第96/030421號等所揭示之利用金屬錯合物之添加之ATRP法、美國專利第4,581,429號等所揭示之導入熱解離基之TEMPO法、國際公開第98/001479號等所揭示之添加可逆性加成裂解鏈轉移劑之RAFT聚合法、Chem. Express 5(10), 801(1990)等所揭示之具有光/熱解離基之引發轉移終止劑(iniferter)法等。
其中,較佳為廉價且對環境之負荷亦較少之使用非金屬觸媒之活性自由基聚合法。該聚合法例如使用上述各種單體、起始化合物、觸媒、自由基聚合起始劑、及聚合溶劑而實施。
該起始化合物中之碘原子與二級或三級之碳原子鍵結,且X、Y及Z可相同亦可不同,較佳為選自氫、烴基、鹵基、氰基、烷氧基羰基、烯丙氧基羰基、醯氧基、烯丙氧基、烷氧基、烷基羰基、及烯丙基羰基。
考慮碘之解離性,碘原子較佳為與二級或三級之碳原子鍵結。其結果為,X、Y及Z中之至少2個不會為氫原子。以下針對X、Y及Z具體地進行例示,但並不限定於該等。
作為烴基,可列舉:烷基、烯基、炔基、芳基、芳烷基。具體而言,可列舉:甲基、乙基、丙基、異丙基、丁基、異丁基、2-甲基丙基、第三丁基、戊基、十二烷基等烷基;乙烯基、烯丙基、2-甲基乙烯基、丁烯基、丁二烯基等包含雙鍵之烯基;乙炔基、甲基乙炔基等包含三鍵之炔基;苯基、萘基、甲基苯基、乙基苯基、丙基苯基、十二烷基苯基、聯苯基等芳基、其中亦包含吡啶基、咪唑啉基等雜環;苯基甲基、1-苯基乙基、2-苯基乙基、2-苯基丙基等芳烷基等。
作為鹵基,可列舉:氟原子、氯原子、溴原子、碘原子等。
作為烷氧基羰基或烯丙氧基羰基,可列舉:甲氧基羰基、乙氧基羰基、丙基羰基、環己基羰基、苄氧基羰基或苯氧基羰基、萘氧基羰基等。
作為醯氧基或烯丙氧基,可列舉:乙醯氧基、乙基羰氧基、環己基羰氧基或苯甲醯氧基、萘基羧氧基等。
作為烷氧基,可列舉:甲氧基、乙氧基、甲氧基乙氧基、苯氧基乙氧基等。
作為烷基羰基或烯丙基羰基,可列舉:甲基羰基、乙基羰基、苯基羰基等。
作為起始化合物之較佳之具體例,可列舉:1-碘-1-苯基乙烷、2-碘-2-氰基丙烷、2-碘-2-氰基-4-甲基戊烷等。
又,該聚合法中,可藉由起始化合物之量而控制共聚物之分子量。藉由相對於起始化合物之莫耳數設定單體之莫耳數,能夠控制任意之分子量、或分子量之大小。起始化合物與單體之莫耳比並無特別限定。例如,能夠於使用起始化合物1莫耳、使用分子量100之單體500莫耳進行聚合之情形時,提供1×100×500=50,000之理論分子量。
(觸媒)
作為觸媒,可使用能夠奪走起始化合物之碘、或聚合物末端之碘之成為自由基之非金屬系化合物,例如具有該性質之磷化合物、氮化合物或氧化合物等。
例如,作為磷化合物,可列舉含碘原子之鹵化磷、亞磷酸酯系化合物、次膦酸酯系化合物等,作為氮化合物,可列舉:醯亞胺系化合物、乙內醯脲類、巴比妥酸類、三聚氰酸類等,作為氧化合物,可列舉:酚系化合物、碘氧基苯基化合物、維生素類等,但並不限定於上述。該等可單獨使用或組合兩種以上使用。
具體而言,作為磷化合物,為含碘原子之鹵化磷、亞磷酸酯系化合物、次膦酸酯系化合物,例如可列舉:二氯碘化磷、二溴碘化磷、三碘化磷、亞磷酸二甲酯、亞磷酸二乙酯、亞磷酸二丁酯、亞磷酸二(全氟乙基)酯、亞磷酸二苯酯、亞磷酸二苄酯、亞磷酸雙(2-乙基己基)酯、亞磷酸雙(2,2,2-三氟乙基)酯、亞磷酸二烯丙酯、亞磷酸乙二酯、苯基次膦酸乙酯、苯基次膦酸苯酯、甲基次膦酸乙酯、甲基次膦酸苯酯等。
作為氮化合物,作為醯亞胺類,例如可列舉:丁二醯亞胺、2,2-二甲基丁二醯亞胺、α,α-二甲基-β-甲基丁二醯亞胺、3-乙基-3-甲基-2,5-吡咯啶二酮、順-1,2,3,6-四氫鄰苯二甲醯亞胺、α-甲基-α-丙基丁二醯亞胺、5-甲基六氫異吲哚-1,3-二酮、2-苯基丁二醯亞胺、α-甲基-α-苯基丁二醯亞胺、2,3-二乙醯氧基丁二醯亞胺、順丁烯二醯亞胺、鄰苯二甲醯亞胺、4-甲基鄰苯二甲醯亞胺、N-氯鄰苯二甲醯亞胺、N-溴鄰苯二甲醯亞胺、N-碘鄰苯二甲醯亞胺、4-硝基鄰苯二甲醯亞胺、2,3-萘羧醯亞胺、均苯四甲酸二醯亞胺、5-溴異吲哚-1,3-二酮、N-氯丁二醯亞胺、N-溴丁二醯亞胺、N-碘丁二醯亞胺等。作為乙內醯脲類,可列舉:乙內醯脲、1-甲基乙內醯脲、5,5-二甲基乙內醯脲、5-苯基乙內醯脲、1,3-二碘-5,5-二甲基乙內醯脲等。作為巴比妥酸類,可列舉:巴比妥酸、5-甲基巴比妥酸、5,5-二乙基巴比妥酸、5-異丙基巴比妥酸、5,5-二丁基巴比妥酸、硫代巴比妥酸等。作為三聚氰酸類,可列舉:三聚氰酸、N-甲基三聚氰酸、三碘三聚氰酸等。
作為氧化合物,係作為芳香環上具有羥基之酚性羥基的酚系化合物、作為該酚性羥基之碘化物的碘氧基苯基化合物、維生素類,例如,作為酚類,可列舉:苯酚、對苯二酚、4-甲氧基苯酚、4-第三丁基苯酚、4-第三丁基-2-甲基苯酚、2-第三丁基-4-甲基苯酚、鄰苯二酚、間苯二酚、2,6-二第三丁基-4-甲基苯酚、2,6-二甲基苯酚、2,4,6-三甲基苯酚、2,6-二第三丁基-4-甲氧基苯酚、使4-羥基苯乙烯聚合而成之聚合物或擔載有該羥基苯基之聚合物微粒子、甲基丙烯酸3,5-二第三丁基-4-羥基苯基乙酯等具有酚性羥基之單體等。由於該等作為聚合抑制劑被添加於乙烯性不飽和單體中,故亦能夠藉由將市售品之乙烯性不飽和單體不精製地直接使用而發揮效果。作為碘氧基苯基化合物,可列舉瑞香草酚碘化物等,作為維生素類,可列舉:維生素C、維生素E等。
觸媒之使用量一般未達自由基聚合起始劑之莫耳數,可考慮聚合之控制狀態等任意決定。
(自由基聚合起始劑)
作為自由基聚合起始劑,可使用先前公知者,並無特別限定,例如,可使用有機過氧化物或偶氮化合物等。具體而言,可列舉:過氧化苯甲醯、過氧化二異丙苯、過氧化二異丙基、過氧化二第三丁基、過氧化苯甲酸第三丁酯、過氧化苯甲酸第三己酯、過氧化2-乙基己酸第三丁酯、過氧化2-乙基己酸第三己酯、1,1-雙(第三丁基過氧基)3,3,5-三甲基環己烷、2,5-二甲基-2,5-雙(第三丁基過氧基)己基-3,3-異丙基過氧化氫、氫過氧化第三丁基、氫過氧化二異丙苯、過氧化乙醯基、過氧化二碳酸雙(4-第三丁基環己基)酯、過氧化異丁基、過氧化3,3,5-三甲基己醯基、過氧化月桂基、1,1-雙(第三丁基過氧基)3,3,5-三甲基環己烷、1,1-雙(第三己基過氧基)3,3,5-三甲基環己烷、2,2'-偶氮雙(異丁腈)、2,2'-偶氮雙(2,4-二甲基戊腈)、2,2'-偶氮雙(4-甲氧基-2,4-二甲基戊腈)、2,2'-偶氮雙(異丁酸)二甲酯等。
自由基聚合起始劑就聚合性等觀點而言,可相對於單體之莫耳數,於0.001莫耳倍以上、0.002莫耳倍以上或0.005莫耳倍以上之範圍使用,又,可於0.1莫耳倍以下、0.05莫耳倍以下或0.01莫耳倍以下之範圍使用。
(聚合溶劑)
作為聚合溶劑,適當選擇不對單體之官能基顯示反應性之溶劑。例如可列舉:己烷、辛烷、癸烷、異癸烷、環己烷、甲基環己烷、甲苯、二甲苯、乙苯、異丙苯等烴系溶劑;甲醇、乙醇、丙醇、異丙醇、丁醇、異丁醇、己醇、苄醇、環己醇等醇系溶劑;乙二醇、二乙二醇、丙二醇、二丙二醇、甲基溶纖劑、乙基溶纖劑、丁基溶纖劑、丙二醇單甲醚、丙二醇單乙醚、丙二醇丙醚、丁基卡必醇、丁基三乙二醇、甲基二丙二醇等含羥基之二醇醚;二乙二醇二甲醚、三乙二醇二甲醚、甲基溶纖劑乙酸酯、丙二醇單甲醚乙酸酯、二丙二醇丁醚乙酸酯、二乙二醇單丁醚乙酸酯等二醇系溶劑;二乙醚、二甲醚、二丙醚、甲基環丙基醚、四氫呋喃、二㗁烷、苯甲醚等醚系溶劑;二甲酮、二乙酮、乙基甲基酮、異丁基甲基酮、環己酮、異佛爾酮、苯乙酮等酮系溶劑;乙酸甲酯、乙酸乙酯、乙酸丁酯、乙酸丙酯、丁酸甲酯、丁酸乙酯、己內酯、乳酸甲酯、乳酸乙酯等酯系溶劑;氯仿、二氯甲烷、二氯乙烷、鄰二氯苯等鹵素系溶劑;甲醯胺、N,N-二甲基甲醯胺、N,N-二甲基乙醯胺、2-吡咯啶酮、N-甲基-2-吡咯啶酮、ε-己內醯胺等醯胺系溶劑;二甲基亞碸、環丁碸、四甲基脲、碳酸乙二酯、碳酸丙二酯、碳酸二甲酯、碳酸二乙酯、硝基甲烷、乙腈、硝基苯、鄰苯二甲酸二辛酯等;但並不限定於以上。
(聚合溫度)
聚合溫度根據自由基聚合起始劑之半衰期適當調整,並無特別限定,例如可設為0℃以上或30℃以上,又,可設為150℃以下或120℃以下。
(聚合時間)
聚合時間較佳為持續聚合直至單體消失,並無特別限定,例如,可設為0.5小時以上、1小時以上或2小時以上,又,可設為48小時以下、24小時以下或12小時以下。
(聚合氛圍)
聚合氛圍並無特別限定,可於大氣氛圍下直接聚合,即,聚合系統內可於通常之範圍內存在氧,亦可視需要為了去除氧而於氮氣氛圍下進行。使用之各種材料可利用蒸餾、活性碳或氧化鋁等去除雜質,亦可直接使用市售品。又,可於遮光下進行聚合,亦可於玻璃之類之透明容器中進行。
《無機粒子分散液》
本發明之嵌段共聚物可用作無機粒子表面處理劑。利用本發明之嵌段共聚物進行之無機粒子之表面處理只要使用通常之處理方法即可,其方法並無特別限定。例如,將本發明之嵌段共聚物溶解於適當之分散介質中,於該溶液中混合無機粒子並加以攪拌,能夠獲得含有經表面處理之無機粒子之分散液。經表面處理之無機粒子可於分散液之狀態下使用,或者亦可使用經乾燥之粉末形態者。
於將本發明之嵌段共聚物作為表面處理劑應用於無機粒子之情形時,無機粒子及嵌段共聚物之比率只要發揮分散性等所需之性能即可,無特別限定,例如,可設為以質量比計100:5~100:40之範圍,又,較佳為100:7~100:30之範圍,更佳為100:10~100:20之範圍。
又,作為分散液中之無機粒子之含量,可設為分散液整體之10質量%以上、20質量%以上或30質量%以上之範圍,又,可設為90質量%以下、80質量%以下或70質量%以下之範圍。
<無機粒子>
作為無機粒子,並無特別限定,可單獨使用或組合兩種以上使用,例如較佳為具有親水性之表面之無機粒子、尤其是表面具有羥基之無機粒子,例如金屬氧化物。無機粒子表面之此種羥基能夠形成親水性鏈段與氫鍵等。作為該無機粒子,並無特別限定,例如可列舉:矽酸、矽酸酐、矽酸鎂、滑石、高嶺土、雲母(mica)、膨潤土、鈦被覆雲母、氧氯化鉍、氧化鋯、氧化鎂、氧化鈦、氧化鋅、氧化鈰、氧化鐵、氧化鋁、硫酸鈣、硫酸鋇、硫酸鎂、碳酸鈣、碳酸鎂、群青、普魯士藍、氧化鉻、氫氧化鉻、碳黑及該等之複合體等粒子。又,關於粒子之形狀,例如板狀、塊狀、鱗片狀、球狀、多孔性球狀等任意之形狀均可使用,關於粒徑亦無特別限制。
(分散介質)
作為分散介質,可使用有機溶劑、尤其是各種油分,例如可列舉:液態石蠟、角鯊烷、異構石蠟、支鏈狀輕石蠟、凡士林、地蠟等烴油,肉豆蔻酸異丙酯、異辛酸鯨蠟酯、三辛酸甘油酯等酯油,十甲基五矽氧烷、二甲基聚矽氧烷、甲基苯基聚矽氧烷等矽酮油等,但並不限定於以上。該等可單獨使用或組合兩種以上使用。
其中,就製成化妝料等之情形之使用感等觀點而言,適合使用矽酮油。具體而言,相對於分散介質整體,矽酮油可於10質量%以上、50質量%以上或70質量%以上之範圍使用,又,可於100質量%以下之範圍使用。
作為矽酮油,不限定於以下,例如能夠使用鏈狀聚矽氧烷、環狀聚矽氧烷、改性矽酮、矽酮系樹脂等,尤其是常壓下之沸點為200℃以下者較適合。例如可列舉:二甲基聚矽氧烷、甲基苯基聚矽氧烷、甲基氫聚矽氧烷等鏈狀聚矽氧烷,八甲基環四矽氧烷、十甲基環五矽氧烷、十二甲基環六矽氧烷、四甲基四氫環四矽氧烷等環狀聚矽氧烷等。
其中,於使用低聚合度二甲基聚矽氧烷(聚合度3~7)等揮發性鏈狀聚矽氧烷、或十甲基環五矽氧烷、八甲基環四矽氧烷等環狀揮發性聚矽氧烷等揮發性矽酮油之情形時,例如作為化妝料等施用於皮膚時不易殘留油感,能夠獲得清爽之使用感,故尤其適合。
《無機粒子分散液之用途》
由本發明之嵌段共聚物作表面處理之無機粒子之分散液與利用先前之表面處理所得之無機粒子分散系相比,能夠大幅度地抑制伴隨無機粒子之調配所導致之黏度上升,故能夠在不限配方下高度地調配無機粒子。因此,該分散液例如能夠用於化妝料、樹脂組合物、塗料、油墨、塗佈用組合物等各種用途,其中,較佳為用於化妝料,尤其是防曬用化妝料。以下具體說明使用由本發明之嵌段共聚物作表面處理之無機粒子之分散液的化妝料,但並不限制本發明。
<化妝料>
於將本發明之無機粒子分散液應用於化妝料之情形時,能夠直接或利用油性成分稀釋製成油性型之化妝料,進而,亦能夠將該等與水相成分藉由公知之方法進行乳化處理,製成水中油型或油中水型之乳化型之化妝料、尤其是水中油型之乳化化妝料。
包含本發明之無機粒子分散液之化妝料、尤其是防曬用化妝料能夠不大幅度地增加黏度而分散性良好地於化妝料中大量調配氧化鈦、氧化鋅、氧化鈰、氧化鐵、雲母等紫外線散射劑。其結果為,該化妝料對皮膚之塗佈性優異,並且能夠帶來基於均勻分散之散射劑所致之紫外線之散射及遮蔽效果的SPF值之增加。
SPF值係根據無機粒子之分散程度而變動之數值,故亦能夠使用SPF值作為分散穩定性之指標。該化妝料之SPF值及黏度不限於以下,例如,作為SPF值,可設為15以上、20以上、或25以上,又,可設為60以下、55以下或50以下,作為黏度,可設為50000 Pa·s以下、30000 Pa·s以下、或10000 Pa·s以下,尤其是亦可設為3000 Pa·s以下、2800 Pa·s以下、或2500 Pa·s以下之更低黏度,又,可設為100 Pa·s以上、150 Pa·s以上或200 Pa·s以上。此處,黏度意指使用作為Vismetron黏度計之VDA-2或VS-H1(均為Shibaura System股份有限公司製造),於32℃、1個大氣壓下測定時之測定對象物之剪切速度1/s時之黏度。
本發明之無機粒子分散液能夠於化妝料中大量調配無機粒子,例如,作為無機粒子朝化妝料中之調配量,相對於化妝料之總量,可調配5質量%以上、10質量%以上、或15質量%以上,又,可調配50質量%以下、48質量%以下、或45質量%以下,但並不限定於以上。
本發明之化妝料之劑型為任意,能夠以溶液系、助溶系、乳化系、水-油二相系、凝膠、氣溶膠、噴霧、及膠囊等任意之形態提供。又,本發明之化妝料之製品形態亦為任意,為化妝水、乳液、乳霜、面膜等面部化妝料;妝前乳、粉餅、腮紅、口紅、唇霜、眼影、眼線、睫毛膏、防曬霜等彩妝用化妝料;身體用化妝料;芳香化妝料;卸妝料、洗顏料、沐浴露等皮膚清洗料;頭髮噴霧、髮乳、護髮液、潤絲精、洗髮精等毛髮化妝料等;只要為先前用於皮膚外用劑者即可,能夠以任意之形態應用。尤其適合用作以防紫外線為目的之製品。
(任意成分)
本發明之化妝料能夠於不對本發明之效果造成影響之範圍,適當組合各種成分。作為各種成分,可列舉通常能夠調配於化妝料中之添加成分,例如液體油脂、固體油脂、蠟、高級脂肪酸等油分、高級醇、陰離子界面活性劑、陽離子界面活性劑、兩性界面活性劑、非離子界面活性劑、保濕劑、水溶性高分子、增黏劑、皮膜劑、金屬離子封阻劑、低級醇、多元醇、各種萃取液、糖、胺基酸、有機胺、高分子乳液、螯合劑、紫外線吸收劑、pH值調整劑、皮膚營養劑、維生素、能夠應用於醫藥品、準藥品、化妝品等之水溶性藥劑、抗氧化劑、緩衝劑、防腐劑、抗氧化助劑、有機系粉末、顏料、染料、色素、香料、水等。
於製成防曬用之化妝料之情形時,可調配1種或2種以上水溶性或油溶性之有機系紫外線吸收劑。
作為水溶性紫外線吸收劑,例如可列舉:2,4-二羥基二苯甲酮、2,2'-二羥基-4-甲氧基二苯甲酮、2,2'-二羥基-4,4'-二甲氧基二苯甲酮、2,2',4,4'-四羥基二苯甲酮、2-羥基-4-甲氧基二苯甲酮、2-羥基-4-甲氧基-4'-甲基二苯甲酮、2-羥基-4-甲氧基二苯甲酮-5-磺酸鹽、4-苯基二苯甲酮、4'-苯基-二苯甲酮-2-羧酸2-乙基己酯、2-羥基-4-正辛氧基二苯甲酮、4-羥基-3-羧基二苯甲酮等二苯甲酮系紫外線吸收劑、苯基苯并咪唑-5-磺酸及其鹽、伸苯基-雙-苯并咪唑-四磺酸及其鹽等苯并咪唑系紫外線吸收劑、3-(4'-甲基亞苄基)-d,l-樟腦、3-亞苄基-d,l-樟腦、尿刊酸、尿刊酸乙酯等。
作為油溶性紫外線吸收劑,例如可列舉:對胺基苯甲酸(PABA)、PABA單甘油酯、N,N-二丙氧基PABA乙酯、N,N-二乙氧基PABA乙酯、N,N-二甲基PABA乙酯、N,N-二甲基PABA丁酯等苯甲酸系紫外線吸收劑;N-乙醯基鄰胺基苯甲酸高䓝酯等鄰胺基苯甲酸系紫外線吸收劑;水楊酸戊酯、水楊酸䓝酯、水楊酸高䓝酯、水楊酸辛酯、水楊酸苯酯、水楊酸苄酯、對異丙醇苯基水楊酸酯等水楊酸系紫外線吸收劑;肉桂酸辛酯、4-異丙基肉桂酸乙酯、2,5-二異丙基肉桂酸甲酯、2,4-二異丙基肉桂酸乙酯、2,4-二異丙基肉桂酸甲酯、對甲氧基肉桂酸丙酯、對甲氧基肉桂酸異丙酯、對甲氧基肉桂酸異戊酯、對甲氧基肉桂酸辛酯、對甲氧基肉桂酸2-乙基己酯、對甲氧基肉桂酸2-乙氧基乙酯、對甲氧基肉桂酸環己酯、α-氰基-β-苯基肉桂酸乙酯、α-氰基-β-苯基肉桂酸2-乙基己酯、單-2-乙基己醯基-二對甲氧基肉桂酸甘油酯、3,4,5-三甲氧基肉桂酸3-甲基-4-[甲基雙(三甲基矽烷氧基)矽烷基]丁酯等肉桂酸系紫外線吸收劑;2-苯基-5-甲基苯并㗁唑、2,2'-羥基-5-甲基苯基苯并三唑、2-(2'-羥基-5'-第三辛基苯基)苯并三唑、2-(2'-羥基-5'-甲基苯基苯并三唑、二苄肼、聯大茴香甲醯基甲烷、4-甲氧基-4'-第三丁基二苯甲醯基甲烷、5-(3,3-二甲基-2-亞降𦯉基)-3-戊基-2-酮、奧克立林等。
[實施例]
以下列舉實施例,針對本發明進一步詳細地進行說明,但本發明並不限定於該等。再者,以下只要無特別說明,則調配量係以質量份表示。
《實施例1~5及比較例1~8》
<共聚物之合成方法>
(共聚物1)
向安裝有攪拌機、逆流冷凝器、溫度計及氮氣導入管之反應容器添加丙二醇單甲醚乙酸酯30質量份、下述式2之單體110質量份、碘0.25質量份、2,2'-偶氮雙(異丁腈)0.3質量份,一面通入氮氣一面於80℃下聚合2小時,製作疏水性鏈段部。
繼而,添加甲基丙烯酸15質量份,進而於相同溫度下聚合2小時形成親水性嵌段部,獲得具有疏水性鏈段及親水性鏈段之嵌段共聚物。若根據各單體原料之使用量換算獲得之嵌段共聚物之莫耳比,則上述式2之單體單元之比率約為80.5莫耳%,甲基丙烯酸之單體單元之比率約為19.5莫耳%。
(共聚物2)
將上述式2之單體之p自10變更為30,除此以外,以與共聚物1相同之方法製作共聚物2之嵌段共聚物。
(共聚物3)
使用下述式1之單體80質量份代替上述式2之單體,除此以外,以與共聚物1相同之方法製作共聚物3之嵌段共聚物。
(共聚物4)
變更為甲基丙烯酸甲酯代替上述式2之單體,除此以外,以與共聚物1相同之方法製作共聚物4之嵌段共聚物。
<經表面處理之無機粒子分散液之製作方法>
(分散液1)
將20 g之共聚物1溶解於200 g之二乙二醇丁醚中,其次,於該溶液中添加80 g之氧化鈦(ST-485WD、Titan Kogyo股份有限公司製造),於室溫下攪拌1小時,製作包含經表面處理之氧化鈦50質量%之氧化鈦之分散液1。
(分散液2~4)
分別使用共聚物2~4代替共聚物1,除此以外,以與分散液1相同之方法製作氧化鈦之分散液2~4。
(分散液5)
使用共聚物2及氧化鋅代替共聚物1及氧化鈦,除此以外,以與分散液1相同之方法製作氧化鋅之分散液5。
<黏度及SPF值之評價>
評價藉由下述所示之表1~2之配方及製造方法所獲得之乳化物之黏度及亦稱為紫外線防禦指數之SPF值。此處,關於黏度,於低黏度之情形時使用VDA-2、於高黏度之情形時使用VS-H1作為Vismetron黏度計,採用於32℃、1個大氣壓下測定時之測定對象物之剪切速度1/s時之黏度。又,關於SPF值,將獲得之乳化物以2 mg/cm2
之塗佈量塗佈於透明帶上作為評價試樣,將該評價試樣插入於紫外線區域中具有與太陽光大致相同之光譜之光源Solar Light公司製造之太陽模擬器與分光光度計之間,比較由評價試樣之有無所獲得之光譜,算出SPF值。根據各光譜進行算出之方法與日本專利特公平6-27064號公報之段落編號[0076]及[0077]所記載之方法相同。
<實施例1~2及比較例1~6之乳化物之製造方法>
(實施例1)
將作為油分之環五矽氧烷、及使氧化鈦之分散液1乾燥而獲得之氧化鈦粉末於室溫下攪拌混合,製作混合物A。其次,將作為界面活性劑之PEG-10聚二甲基矽氧烷及離子交換水於60℃下攪拌混合,製作混合物B,一面於60℃攪拌,一面向該混合物B添加混合物A,製作實施例1之乳化物。又,將該乳化物之組成彙總於表1。
(實施例2)
使用環五矽氧烷及異辛酸鯨蠟酯作為油分,除此以外,以與實施例1相同之方式製作實施例2之乳化物。又,將該乳化物之組成彙總於表1。
(比較例1~2、4及5)
採用表1所記載之各種成分及調配比率,且分散液B及C係不乾燥而直接使用,除此以外,以與實施例1相同之方式,分別製作比較例1~2、4及5之乳化物。又,將該乳化物之組成彙總於表1。此處,表1中之粉末A係指利用硬脂酸鋁而經表面處理之氧化鈦粉末,分散液B係指環五矽氧烷中含有利用硬脂酸鋁而經表面處理之氧化鈦40質量%及界面活性劑10質量%之分散液,又,分散液C係指環五矽氧烷中含有利用氫聚二甲基矽氧烷而經表面處理之氧化鈦40質量%及界面活性劑10質量%之分散液。
(比較例3及6)
將作為油分之環五矽氧烷、離子交換水、及分散液B或分散液C於60℃下攪拌混合,分別製作比較例3及6之乳化物。又,將該乳化物之組成彙總於表1。
<結果>
根據表1可知,採用利用先前一般使用之材料而經表面處理之氧化鈦的比較例1~6之乳化物之黏度為約6700 Pa·s以上之高黏度,油分與水分離等而不穩定,但採用由本發明之嵌段共聚物作表面處理之氧化鈦的實施例1及2除氧化鈦之分散性優異之外,與比較例1~6相比,能夠大幅度地降低乳化物之黏度。又,例如,根據比較例2及4判明,於使用利用先前之材料而經表面處理之氧化鈦之情形時,根據油分之種類不同,黏度大幅變動,但實施例1及2之乳化物幾乎不受由油分之種類所產生之影響。因此,亦可知由本發明之嵌段共聚物作表面處理之氧化鈦等對象物不易受油分之種類制約。
<實施例3~5及比較例7~8之乳化物之製造方法>
(實施例3)
將表2所記載之油分及作為UV散射劑之分散液2之乾燥粉末於80℃之氛圍下,以表2所記載之調配比率攪拌混合,製作混合物C。其次,將表2所記載之水、醇、增黏劑、保濕劑、界面活性劑、UV吸收劑及其他成分於80℃之氛圍下,以表2所記載之調配比率攪拌混合,製作混合物D,一面於80℃下攪拌,一面向該混合物D添加混合物C,製作實施例3之乳化物。又,將該乳化物之組成彙總於表2。
(實施例4及5)
將UV散射劑自分散液2之乾燥粉末變更為分散液3之乾燥粉末或分散液4之乾燥粉末,除此以外,以與實施例3相同之方式,分別製作實施例4及5之乳化物。又,將該乳化物之組成彙總於表2。
(比較例7)
將表2所記載之水、醇、增黏劑、保濕劑、油分、界面活性劑、UV吸收劑及其他成分於80℃之氛圍下,以表2所記載之調配比率攪拌混合,製作比較例7之乳化物。又,將該乳化物之組成彙總於表2。
(比較例8)
將UV散射劑自分散液2之乾燥粉末變更為粉末A,除此以外,以與實施例3相同之方式,製作比較例8之乳化物。又,將該乳化物之組成彙總於表2。
<結果>
根據表2可知,於用UV散射劑替換不含UV散射劑之比較例7之UV吸收劑之一部分之情形時,一般如比較例8所示,伴有黏度之大幅度之上升,又,存在由於UV散射劑之分散性之降低等,SPF值亦減少之傾向。另一方面,可知於採用由本發明之嵌段共聚物作表面處理之氧化鈦的實施例3~5之情形時,即便用UV散射劑替換UV吸收劑之一部分,非但黏度不上升,反而能夠減少黏度,又,亦能增大SPF值。
又,認為根據表2之比較例7及實施例3~5之結果能夠容易地推測,若使用包含由本發明之嵌段共聚物作表面處理之氧化鈦等之UV散射劑,則可於更低黏度之狀態下獲得與如比較例7所示之不含UV散射劑之體系同等以上之SPF值,故於以更高濃度調配UV散射劑至不含UV散射劑之體系之黏度之情形時,可較該體系更進一步提高SPF值。
《無機粒子分散液之配方例》
以下列舉本發明之無機粒子分散液之配方例,但並不限定於該例示。再者,以下之配方例所記載之乳液中之剛製作後及1天後之黏度為660 Pa·s及580 Pa·s之低黏度,且SPF值達到36。認為該結果啟示,使用本發明之無機粒子分散液獲得之化妝料能夠實現基於低黏度之水潤與高SPF值兩者。
<配方例1 乳液>
(成分) (質量份)
1.離子交換水 21
2.環五矽氧烷 27.65
3.氫化聚癸烯 2
4.PEG-9聚二甲基矽烷氧基乙基聚二甲基矽氧烷 3
5.異硬脂酸 0.3
6.三異辛酸甘油酯 7
7.二硬脂基二甲基銨鋰膨潤石 0.5
8.分散液2之乾燥粉末 12
9.分散液5之乾燥粉末 16
10.EDTA-3Na·2H2
O 0.2
11.木糖醇 1
12.甘油 4
13.1,3-丁二醇 5
14.苯氧基乙醇 0.35
(乳液之製造方法)
將上述3及5~9於室溫下攪拌混合,製作混合物E。其次,將上述1、2、4及10~14於室溫下攪拌混合,製作混合物F,一面於室溫下攪拌,一面向該混合物F添加混合物E,製作乳液。
1‧‧‧疏水性鏈段
2‧‧‧親水性鏈段
3‧‧‧無機粒子
圖1(a)係利用嵌段共聚物而經表面處理之無機粒子之模式圖,(b)係利用無規共聚物而經表面處理之無機粒子之模式圖,(c)係利用低分子型之表面處理劑而經表面處理之無機粒子之模式圖。
圖2係利用本發明之一實施態樣之嵌段共聚物而經表面處理之無機粒子之模式圖。
1‧‧‧疏水性鏈段
2‧‧‧親水性鏈段
3‧‧‧無機粒子
Claims (9)
- 如請求項1之分散液,其中上述親水性鏈段含有包含選自下述式3~式9之至少一種單體之單體單元; [化3]…式3 式3中, R1 為氫或甲基, [化4]…式4 式4中, R1 為氫或甲基, m1 及m2 分別獨立地為1~6之整數,且 R5 分別獨立地為碳原子數1~6之烷基, [化5]…式5 式5中, R1 為氫或甲基, m為1~6之整數,且 R6 分別獨立地為碳原子數1~6之烷基, [化6]…式6 式6中, R1 為氫或甲基, m為1~6之整數,且 R7 分別獨立地為碳原子數1~6之烷基, [化7]…式7 式7中, R1 為氫或甲基, m為1~6之整數,且 R8 分別獨立地為水解並進行交聯反應之官能基, [化8]…式8 R1 為氫或甲基, q為1~20之整數,且 R9 為碳原子數1~6之烷基, [化9]…式9。
- 如請求項1或2之分散液,其中上述嵌段共聚物中,上述疏水性鏈段之比率為50~99莫耳%,且上述親水性鏈段之比率為1~50莫耳%。
- 如請求項1至3中任一項之分散液,其中上述無機粒子及上述嵌段共聚物之比率以質量比計為100:5~100:40。
- 如請求項1至4中任一項之分散液,其中上述無機粒子為選自氧化鈦粒子、氧化鋅粒子、氧化鈰粒子、氧化鐵粒子、及雲母粒子之至少一種。
- 一種無機粒子粉末,其係使如請求項1至5中任一項之分散液乾燥而成。
- 一種防曬用化妝料,其包含如請求項1至5中任一項之分散液、或如請求項6之無機粒子粉末。
- 如請求項7之化妝料,其SPF值為15以上,且黏度為50000 Pa·s以下。
- 如請求項7或8之化妝料,其相對於化妝料之總量,包含上述無機粒子5質量%以上50質量%以下。
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| JP2018102631 | 2018-05-29 | ||
| JP2018-102631 | 2018-05-29 |
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| TW202002937A true TW202002937A (zh) | 2020-01-16 |
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| EP (1) | EP3811924A4 (zh) |
| JP (1) | JP7311501B2 (zh) |
| CN (1) | CN112203635B (zh) |
| TW (1) | TW202002937A (zh) |
| WO (1) | WO2019230378A1 (zh) |
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| KR930000892B1 (ko) | 1983-07-11 | 1993-02-11 | 커몬웰스 사이언티픽 앤드 인더스트리얼 리셔치 오가니제이숀 | 신규의 개시제를 사용하여 중합체 또는 공중합체를 제조하는방법 |
| GB9010527D0 (en) | 1990-05-10 | 1990-07-04 | Unilever Plc | Cosmetic composition |
| US5763548A (en) | 1995-03-31 | 1998-06-09 | Carnegie-Mellon University | (Co)polymers and a novel polymerization process based on atom (or group) transfer radical polymerization |
| JPH1017635A (ja) | 1996-07-08 | 1998-01-20 | Japan Synthetic Rubber Co Ltd | 注型重合用放射線硬化性樹脂組成物 |
| FR2830773B1 (fr) * | 2001-10-11 | 2004-07-23 | Oreal | Utilisation de copolymeres amphiphiles pour stabiliser des dispersions de composes organiques insolubles filtrant le rayonnement uv, dispersions stabilisees par ces copolymeres et compositions cosmetiques les contenant |
| JP2004091645A (ja) * | 2002-08-30 | 2004-03-25 | Miyoshi Kasei Inc | 表面処理された紺青被覆粉体及びその製造方法 |
| JP2004231758A (ja) * | 2003-01-29 | 2004-08-19 | Shiseido Co Ltd | 反応性シリル基含有共重合体及びこれを含有する組成物 |
| US20050238594A1 (en) * | 2003-09-15 | 2005-10-27 | Nathalie Mougin | Block ethylenic copolymers comprising a vinyllactam block, cosmetic or pharmaceutical compositions comprising them and cosmetic use of these copolymers |
| US20060013791A1 (en) * | 2004-07-16 | 2006-01-19 | L'oreal | Cosmetic composition comprising a defined silicone polymer and a film former |
| JP4727963B2 (ja) * | 2004-09-17 | 2011-07-20 | キヤノンファインテック株式会社 | 水性の微粒子分散組成物の製造方法 |
| JP5345302B2 (ja) * | 2007-07-27 | 2013-11-20 | 富士フイルム株式会社 | 有機無機複合組成物および光学部品 |
| JP2009155622A (ja) * | 2007-12-07 | 2009-07-16 | Nippon Shokubai Co Ltd | ポリマー被覆金属酸化物微粒子水分散体およびそれを用いた化粧料 |
| EP2311920B1 (en) | 2008-08-05 | 2016-10-12 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Pigment dispersions, block polymers and manufacturing method therefor |
| WO2010124187A2 (en) * | 2009-04-24 | 2010-10-28 | Henkel Corporation | Silicone acrylic hybrid polymer-based adhesives |
| SG11201404884WA (en) * | 2012-03-05 | 2014-10-30 | Otsuka Pharma Co Ltd | Sunscreen composition |
| JP6158001B2 (ja) | 2013-09-06 | 2017-07-05 | キヤノンファインテック株式会社 | インクジェット記録用インク、インクジェット記録方法、インクジェット記録用ヘッド、及びインクジェット記録装置 |
| JP6349875B2 (ja) * | 2014-03-31 | 2018-07-04 | 住友大阪セメント株式会社 | 酸化ケイ素被覆酸化亜鉛とその製造方法及び酸化ケイ素被覆酸化亜鉛含有組成物並びに化粧料 |
| CN106132876B (zh) * | 2014-03-31 | 2018-12-28 | 住友大阪水泥株式会社 | 氧化硅包覆氧化锌及其制造方法、含有氧化硅包覆氧化锌的组合物以及化妆材料 |
| JP5913475B2 (ja) * | 2014-08-06 | 2016-04-27 | 株式会社 資生堂 | 化粧料用原料 |
| JP6801211B2 (ja) | 2016-03-30 | 2020-12-16 | Dic株式会社 | ブロックポリマー、並びにこれを含むコーティング剤および塗膜 |
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- 2019-05-14 EP EP19810088.5A patent/EP3811924A4/en active Pending
- 2019-05-14 CN CN201980035819.2A patent/CN112203635B/zh active Active
- 2019-05-14 WO PCT/JP2019/019177 patent/WO2019230378A1/ja not_active Ceased
- 2019-05-14 JP JP2020521835A patent/JP7311501B2/ja active Active
- 2019-05-14 US US17/054,310 patent/US20210236411A1/en not_active Abandoned
- 2019-05-28 TW TW108118321A patent/TW202002937A/zh unknown
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| JPWO2019230378A1 (ja) | 2021-06-10 |
| JP7311501B2 (ja) | 2023-07-19 |
| US20210236411A1 (en) | 2021-08-05 |
| CN112203635A (zh) | 2021-01-08 |
| WO2019230378A1 (ja) | 2019-12-05 |
| EP3811924A4 (en) | 2022-03-09 |
| EP3811924A1 (en) | 2021-04-28 |
| CN112203635B (zh) | 2024-01-16 |
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