JPS6327532A - Polyamide composite particle - Google Patents
Polyamide composite particleInfo
- Publication number
- JPS6327532A JPS6327532A JP17119986A JP17119986A JPS6327532A JP S6327532 A JPS6327532 A JP S6327532A JP 17119986 A JP17119986 A JP 17119986A JP 17119986 A JP17119986 A JP 17119986A JP S6327532 A JPS6327532 A JP S6327532A
- Authority
- JP
- Japan
- Prior art keywords
- particles
- polyamide
- zirconium oxide
- particle diameter
- average particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004952 Polyamide Substances 0.000 title claims abstract description 23
- 229920002647 polyamide Polymers 0.000 title claims abstract description 23
- 239000011246 composite particle Substances 0.000 title claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 54
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 25
- 239000002344 surface layer Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 17
- 239000000843 powder Substances 0.000 abstract description 11
- 239000002537 cosmetic Substances 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 5
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000516 sunscreening agent Substances 0.000 abstract description 3
- 238000000975 co-precipitation Methods 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- -1 aliphatic diamines Chemical class 0.000 description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000635 electron micrograph Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 description 2
- SXWPIGKEISLSNQ-UHFFFAOYSA-N 1,8-dioxacyclooctadecane-9,18-dione Chemical compound O=C1CCCCCCCCC(=O)OCCCCCCO1 SXWPIGKEISLSNQ-UHFFFAOYSA-N 0.000 description 1
- RNQBCZCPNUHWLV-UHFFFAOYSA-N 1,8-dioxacyclotetradecane-2,7-dione Chemical compound O=C1CCCCC(=O)OCCCCCCO1 RNQBCZCPNUHWLV-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 206010061549 Sensation of foreign body Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Cosmetics (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は紫外線及び赤外線に対する反射率を高めたポリ
アミド複合粒子に関する。ざらには、化粧品基材として
使用される時、油類の分散しやすく、サンスクリーン剤
として有用なファンデーション用に適した微粒子に関す
る。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to polyamide composite particles with increased reflectance to ultraviolet and infrared rays. In particular, the present invention relates to fine particles suitable for use in foundations, which easily disperse oils when used as a base material for cosmetics, and are useful as sunscreen agents.
〈従来の技術〉
皮府を紫外線にさらすと、皮膚の黒化ヤ、ざらには老化
を促進するなど美容上好ましからぬ現象が起こる。この
ため、化粧品には紫外線を遮断覆る目的で有機物系の紫
外線吸収剤や無機物系の酸化チタンが使用されている（
特公昭４７−４２５０２号公報）。とくに、酸化ブタン
は光の照射で有害な物質が生成することなく優れている
と言われてきた。<Prior art> When the skin is exposed to ultraviolet rays, unfavorable cosmetic phenomena occur, such as darkening of the skin and accelerated aging of the skin. For this reason, organic ultraviolet absorbers and inorganic titanium oxide are used in cosmetics to block and cover ultraviolet rays (
(Special Publication No. 47-42502). In particular, butane oxide has been said to be superior because it does not produce harmful substances when irradiated with light.
〈発明が解決しようとする問題点〉
しかるに、最近の知見では酸化チタンは紫外線を反０１
スるのではなく、吸収し、そのため汗等の電界質の存在
下で光化学反応を起こし、過酸化水素ガスを発生し、肌
荒れを生じる現象が発見されている。また、皮１Ｇに悪
影響をりえるのは、紫外線だけではなく、赤外線も有害
であることがわかってきた。<Problems to be solved by the invention> However, recent findings suggest that titanium oxide has a 01
A phenomenon has been discovered in which a photochemical reaction occurs in the presence of an electrolyte such as sweat, generates hydrogen peroxide gas, and causes rough skin. Furthermore, it has been found that it is not only ultraviolet rays that can have a negative effect on skin 1G, but also infrared rays.
本発明者らは可視領域は勿論、紫外領域や近赤外領域で
も光の反射力が大きく、イのため遮蔽効果が大ぎく、か
つ紫外線による光反応を起こさない微粒子について鋭怠
倹ト１した。The present inventors have developed a method for fine particles that have a large light reflecting power not only in the visible region but also in the ultraviolet and near-infrared regions, and therefore have a large shielding effect and do not cause a photoreaction with ultraviolet rays. .
その結果、酸化ジルコニウムが目的とする１−ｈ性を具
１品していることを見い出し暑ナンケア化粧品への利用
を検討した。しかるに酸化ジルコニウムは、比重が大き
いため化枡晶原料中で沈降しやすく、安定した分散を維
持しにくい欠点がおる。そこで更に、比重を下げる方法
について検討し、本発明に至った。As a result, it was discovered that zirconium oxide had the desired 1-h properties, and its use in hot weather care cosmetics was investigated. However, since zirconium oxide has a high specific gravity, it tends to settle in the chemical crystal raw material and has the disadvantage that it is difficult to maintain stable dispersion. Therefore, we further investigated a method of lowering the specific gravity and arrived at the present invention.
く問題点を解決するための手段〉
づ゛なわち本発明は
平均粒子径３μＴｎ〜２０μｍのポリアミド粒子の表層
部に平均粒子径１μ■以下の酸化ジルコニウムが担持さ
れていることを特徴とするポリアミド複合粒子を提供す
るものである。Means for Solving the Problems〉 That is, the present invention provides a polyamide characterized in that zirconium oxide having an average particle size of 1 μm or less is supported on the surface layer of polyamide particles having an average particle size of 3 μTn to 20 μm. Composite particles are provided.
本発明でいうポリアミド粒子とは、カプロラクタムやラ
ウロラクタムで代表される環状ラクタムやヘキサメチレ
ンアジペート、ヘキサメチレンセバケート等で代表され
る脂肪族ジアミンと脂肪族ジカルボン酸との塩を単独重
合もしくは共重合することにより製造される共壬合体を
低温で粉砕することにより粒子化したものが使用できる
が、好ましくは、上記の環状ラクタムをアルカリ重合触
媒の存在下で、溶液沈澱法で製造されたものが、粒子の
形状が良好で、酸化ジルコニウムの付着性が良く、好ま
しく利用できる（特公昭４５−２９８３２号公報、特公
昭４７−２５１５７号公報参照）。The polyamide particles used in the present invention are made by homopolymerizing or copolymerizing salts of aliphatic diamines and aliphatic dicarboxylic acids such as cyclic lactams such as caprolactam and laurolactam, and hexamethylene adipate and hexamethylene sebacate. It is possible to use a product obtained by pulverizing the conjugated lactam at a low temperature into particles, but preferably a product prepared by a solution precipitation method using the above-mentioned cyclic lactam in the presence of an alkaline polymerization catalyst can be used. The particle shape is good, and the adhesion of zirconium oxide is good, so it can be preferably used (see Japanese Patent Publication No. 45-29832 and Japanese Patent Publication No. 47-25157).
本発明におけるポリアミドの平均粒子径は小さいほど隠
蔽力が高くなり好ましい。ゆかし、粒子径が小さくなる
と、粒子の取り扱いが繁雑になる等の製造上の制約があ
る。また、平均粒子径が大きくなると、支店と接触した
時に異物感があり好ましくない。The smaller the average particle diameter of the polyamide in the present invention, the higher the hiding power, which is preferable. However, as the particle size becomes smaller, there are manufacturing constraints such as the complexity of handling the particles. Moreover, if the average particle diameter becomes large, it will give a feeling of foreign body when it comes into contact with branches, which is not preferable.
したがって、本発明においては、３〜２０μｍのポリア
ミド粒子を使用する必要がある。Therefore, in the present invention it is necessary to use polyamide particles of 3 to 20 μm.
酸化ジルコニウムは通常の方法で製造されたものが使用
出来る。製造法の一例をあげれば次のとおりである。す
なわら、オキシ塩化ジルコニウム、あるいは硝酸ジルコ
ニウム、あるいはジルコニウムアルコキシドを原料とし
、周知の共沈法、熱分解法、加水分解法、金属アルコキ
シド法、ゾル−グル法、気相法等を用いて粒子形状が球
形に近い粉末が形成される。Zirconium oxide produced by a conventional method can be used. An example of a manufacturing method is as follows. In other words, using zirconium oxychloride, zirconium nitrate, or zirconium alkoxide as a raw material, particles are formed using well-known coprecipitation methods, thermal decomposition methods, hydrolysis methods, metal alkoxide methods, sol-glu methods, gas phase methods, etc. A powder with a nearly spherical shape is formed.
粒子径は粉末形成工程の条件（濃度、ｐＨ１熟成時間、
溶媒の種類等）や粉末形成後の工程の条件（仮焼の濃度
等）により制御される。The particle size depends on the conditions of the powder formation process (concentration, pH 1 aging time,
It is controlled by the type of solvent, etc.) and the conditions of the process after powder formation (concentration of calcination, etc.).
仮焼後溶媒に分散させ、ボールミル等の粉砕機で粉砕し
、乾燥することによって酸化ジルコニウム粉末が製造で
きる。After calcination, zirconium oxide powder can be produced by dispersing it in a solvent, pulverizing it with a pulverizer such as a ball mill, and drying it.
本発明に使用される酸化ジルコニウムの粒子径は１μ■
以下にする必要があり、好ましくは、０．１〜０．８μ
ｍである。粒子径が１μ７ｎより大きいとポリアミド粒
子への付着性が低下し、又、複合粒子のざらつき感が強
くなり初期の目的が達成されない。The particle size of zirconium oxide used in the present invention is 1 μ■
It must be below, preferably 0.1 to 0.8μ
It is m. If the particle size is larger than 1 μ7n, the adhesion to the polyamide particles will decrease, and the composite particles will have a strong rough feel, making it impossible to achieve the initial purpose.
酸化ジルコニウム粒子をポリアミド粒子の表層部に担持
させる方法としては、所謂トライブレンド法が有効であ
る。酸化ジルコニウム粒子とポリアミド粒子とは親和性
が良く、両粒子を混和することにより、前者は後者の表
面に付着し、ざらにポリアミドが摩擦熱により熔解し、
内部に進入してゆく。このため適切な混和時間処理する
ことにより、両粒子は強固に結合される。A so-called triblend method is effective as a method for supporting zirconium oxide particles on the surface layer portion of polyamide particles. Zirconium oxide particles and polyamide particles have good affinity, and by mixing both particles, the former adheres to the surface of the latter, and the polyamide roughly melts due to frictional heat.
Go inside. Therefore, both particles can be firmly bonded by treatment for an appropriate mixing time.
ポリアミド粒子の表層部に担持される酸化ジルコニウム
粒子の母は重但比が概略３：１で飽和される。したがっ
て、ポリアミド粒子にたいして１０〜３５重母％の酸化
ジルコニウム粒子を担持させた複合粒子が好ましい。The matrix of zirconium oxide particles supported on the surface layer portion of the polyamide particles is saturated with a gravity ratio of approximately 3:1. Therefore, composite particles in which 10 to 35% of zirconium oxide particles are supported on polyamide particles are preferable.
かくして形成された複合粒子は、表面に配列された酸化
ジルコニウム粒子の性７月と内部のポリアミドの性質を
合わせ持つものとなる。The composite particles thus formed have both the properties of the zirconium oxide particles arranged on the surface and the properties of the polyamide inside.
すなわら、比重はポリアミドに近づき、光に対する性質
は酸化ジルコニウム粒子に近づき本発明の目的を達成す
ることができた。すなわち、比重はポリアミドに近づき
、光に対する性質は酸化ジルコニウム粒子に近づき、化
粧品原料と混合した場合、沈降分離などの現象を起こす
こともなく、良好な混合特性を示し、本発明の目的を達
成することができた。In other words, the specific gravity was close to that of polyamide, and the properties against light were close to those of zirconium oxide particles, so that the object of the present invention could be achieved. That is, the specific gravity is close to that of polyamide, the property against light is close to that of zirconium oxide particles, and when mixed with cosmetic raw materials, it exhibits good mixing characteristics without causing phenomena such as sedimentation and separation, achieving the object of the present invention. I was able to do that.
〈実施例〉 以下、実施］９１１をもって本発明の詳細な説明する。<Example> Hereinafter, the present invention will be described in detail with reference to Implementation] 911.
実施例１
酸化ジルコニウム粒子の製造
純度が９９．９％であるオキシ塩化ジルコニウムの水溶
液を約１００’Ｃまで徐々に加熱し、その温度に約１５
０時間保持して水をとばし、ざらに約り００℃／時間の
昇温速度で約１０００’Ｃまで加熱し、その温度に約３
時間保持して仮焼粉末を得た。更に、この仮焼粉末をウ
レタンを内張すしたボールミルで粉砕後乾燥し平均粒子
径０．３μｍである球形に近い形状の酸化ジルコニウム
粒子を１９だ。Example 1 Production of zirconium oxide particles An aqueous solution of zirconium oxychloride having a purity of 99.9% is gradually heated to about 100'C, and the temperature is increased to about 15
Hold for 0 hours to evaporate the water, heat to approximately 1000'C at a heating rate of approximately 00°C/hour, and maintain at that temperature for approximately 30 minutes.
A calcined powder was obtained by holding for a certain period of time. Furthermore, this calcined powder was ground in a ball mill lined with urethane and dried to obtain zirconium oxide particles (19) having an average particle size of 0.3 μm and a shape close to a sphere.
酸化ジルコニウム粒子の担持
上記の方法で得た酸化ジルコニウム粒子６部と粒子径５
μｍのナイロン粉末（東し■製５Ｐ−５００＞２０部と
を自動乳鉢で１時間および３時間混合した。得られた複
合粒子の電顕写真を第１図及び第２図に示す。図からナ
イロン粒子の表層部に酸化ジルコニウム粒子が担持され
ていることがわかる。また、複合粒子の光反射特性を第
３図に示した。Supporting zirconium oxide particles 6 parts of zirconium oxide particles obtained by the above method and particle size 5
20 parts of nylon powder (5P-500 manufactured by Toshi ■) was mixed in an automatic mortar for 1 hour and 3 hours. Electron micrographs of the obtained composite particles are shown in Figures 1 and 2. From the figure It can be seen that zirconium oxide particles are supported on the surface layer of the nylon particles.Furthermore, the light reflection characteristics of the composite particles are shown in FIG.
比較例 １
平均粒子径０．５μｍの酸化チタン粉末（富士チタン■
製ＴＡ−５００＞６部と実施例１で使用したナイロン粒
子２０部とを実施例１と同様に処理した。得られた複合
粒子の光反射特性を第３図に示した。Comparative Example 1 Titanium oxide powder with an average particle size of 0.5 μm (Fuji Titanium ■
TA-500>6 parts and 20 parts of the nylon particles used in Example 1 were treated in the same manner as in Example 1. The light reflection characteristics of the obtained composite particles are shown in FIG.
第３図のグラフかられかるように本発明の複合粒子は比
較例で示した酸化チタンを付着させた粉末に比べ、波長
が２μｍ前後の近赤外領域での反射率が高い。すなわち
熱線の反射率が高いといえる。また、波長が０．３〜０
．４μｍの紫外領域での反射率が高く、紫外線を良く遮
蔽する性質があることを示している。As can be seen from the graph in FIG. 3, the composite particles of the present invention have a higher reflectance in the near-infrared region with a wavelength of around 2 μm than the powder to which titanium oxide is attached shown in the comparative example. In other words, it can be said that the reflectance of heat rays is high. Also, the wavelength is 0.3~0
．． It has a high reflectance in the 4 μm ultraviolet region, indicating that it has the property of effectively blocking ultraviolet rays.
〈発明の効果〉
酸化ジルコニウムの微粒子を、ポリアミド粒子の表層部
に付着せしめることにより製造される本発明の複合粒子
は、紫外線から近赤外線までの広い範囲の光を反則する
ことができる。また、該粒子は酸化ジルコニウムに比べ
比重が小さく、化粧品原料との混合性も改善され、更に
、酸化ジルコニウムは酸化チタンに比べて摩擦係数が低
く、粉体同志のすべりが良い等の（ｑ異な性質を持つた
め、サンスクリーン剤として広く利用できる。<Effects of the Invention> The composite particles of the present invention, which are produced by attaching fine particles of zirconium oxide to the surface layer of polyamide particles, can reflect light in a wide range from ultraviolet rays to near infrared rays. In addition, the particles have a lower specific gravity than zirconium oxide, and have improved miscibility with cosmetic raw materials. Furthermore, zirconium oxide has a lower coefficient of friction than titanium oxide, and has good sliding properties between powders. Due to its properties, it can be widely used as a sunscreen agent.
第１図および第２図は実施例１で、１時間および３時間
混合した時のポリアミド複合粒子の電顕写真であり、第
３図は複合粒子の光反応特性を示すグラフである。FIGS. 1 and 2 are electron micrographs of polyamide composite particles mixed for 1 hour and 3 hours in Example 1, and FIG. 3 is a graph showing the photoreaction characteristics of the composite particles.
Claims (1)
に平均粒子径１μｍ以下の酸化ジルコニウムが担持され
ていることを特徴とするポリアミド複合粒子Polyamide composite particles characterized in that zirconium oxide with an average particle diameter of 1 μm or less is supported on the surface layer of polyamide particles with an average particle diameter of 3 μm to 20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61171199A JPH0689154B2 (en) | 1986-07-21 | 1986-07-21 | Polyamide composite particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61171199A JPH0689154B2 (en) | 1986-07-21 | 1986-07-21 | Polyamide composite particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6327532A true JPS6327532A (en) | 1988-02-05 |
| JPH0689154B2 JPH0689154B2 (en) | 1994-11-09 |
Family
ID=15918853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61171199A Expired - Fee Related JPH0689154B2 (en) | 1986-07-21 | 1986-07-21 | Polyamide composite particles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0689154B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2622441A1 (en) * | 1987-10-28 | 1989-05-05 | Oreal | TRANSPARENT COSMETIC COMPOSITION REFLECTING INFRARED RADIATION AND ITS USE FOR THE PROTECTION OF THE HUMAN SKIN AGAINST INFRARED RADIATION |
| JPH0317011A (en) * | 1989-06-14 | 1991-01-25 | Toray Ind Inc | Composite particle |
| EP0761743A1 (en) * | 1995-08-31 | 1997-03-12 | Alusuisse Technology & Management AG | Ultrafine thermoplasts |
| FR2799120A1 (en) * | 1999-10-01 | 2001-04-06 | Oreal | Material comprising UV-A organic solar filter, used in cosmetic and dermatological compositions, contains zirconium alkoxide, organic or silicone functionalized polymer and solvent |
| WO2007069694A1 (en) | 2005-12-14 | 2007-06-21 | Ube Industries, Ltd. | Powder composed of inorganic compound-loaded polyamide porous particle |
| JP2008150594A (en) * | 2006-11-21 | 2008-07-03 | Toray Ind Inc | Polycaproamide resin composite microparticle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61194010A (en) * | 1985-02-22 | 1986-08-28 | Shiseido Co Ltd | Makeup cosmetic |
-
1986
- 1986-07-21 JP JP61171199A patent/JPH0689154B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61194010A (en) * | 1985-02-22 | 1986-08-28 | Shiseido Co Ltd | Makeup cosmetic |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2622441A1 (en) * | 1987-10-28 | 1989-05-05 | Oreal | TRANSPARENT COSMETIC COMPOSITION REFLECTING INFRARED RADIATION AND ITS USE FOR THE PROTECTION OF THE HUMAN SKIN AGAINST INFRARED RADIATION |
| BE1003842A5 (en) * | 1987-10-28 | 1992-06-30 | Oreal | Cosmetic reflecting the infrared transparent and use for the protection of human skin against infrared. |
| JPH0317011A (en) * | 1989-06-14 | 1991-01-25 | Toray Ind Inc | Composite particle |
| EP0761743A1 (en) * | 1995-08-31 | 1997-03-12 | Alusuisse Technology & Management AG | Ultrafine thermoplasts |
| US5994443A (en) * | 1995-08-31 | 1999-11-30 | Alusuisse Technology & Management Ltd. | Ultra-fine-grained thermoplastics |
| CH690066A5 (en) * | 1995-08-31 | 2000-04-14 | Alusuisse Lonza Services Ag | Very finely divided thermoplastics. |
| FR2799120A1 (en) * | 1999-10-01 | 2001-04-06 | Oreal | Material comprising UV-A organic solar filter, used in cosmetic and dermatological compositions, contains zirconium alkoxide, organic or silicone functionalized polymer and solvent |
| WO2001024768A3 (en) * | 1999-10-01 | 2002-07-11 | Oreal | Material comprising an organic uv-a filter and method for displacing the maximum absorption wavelength |
| WO2007069694A1 (en) | 2005-12-14 | 2007-06-21 | Ube Industries, Ltd. | Powder composed of inorganic compound-loaded polyamide porous particle |
| JP2008150594A (en) * | 2006-11-21 | 2008-07-03 | Toray Ind Inc | Polycaproamide resin composite microparticle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0689154B2 (en) | 1994-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |