MELANIN SUPPRESSING AGENT
    71.
    发明专利

    公开(公告)号:JPH06271450A

    公开(公告)日:1994-09-27

    申请号:JP6420793

    申请日:1993-03-23

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain a melanin suppressing agent capable of preventing and improving melanization by acting on an epidermal melanin metabolism system and having excellent effect capable of preventing and improving stain or ephelis due to suntan, etc., and excellent in blending property to a cosmetic base. CONSTITUTION:This melanin suppressing agent contains an amine derivative of formula I (R is 4-40C straight-chain, branched chain or cyclic saturated or unsaturated hydrocarbon group; R to R are H or 1-10C hydrocarbon groups whose hydrogen atoms may be substituted with one or more OH groups) or its acid addition salt, e.g. 1-(2-hydroxyethylamino)-3-tetradesiloxy-2-propanol. The compound is blended in an amount of 0.0001-10wt.%, especially 0.001-2wt.% based on total composition of a cosmetic to provide a beautifying cosmetic excellent in effect capable of preventing and treating melanization. The compound of formula 1 is obtained by adding an amine derivative of formula 3 to a glycidyl ether derivative of formula 2.

    WRINKLE IMPROVER AND KERATINIZATION IMPROVER

    公开(公告)号:JPH06271448A

    公开(公告)日:1994-09-27

    申请号:JP6060293

    申请日:1993-03-19

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain a wrinkle improver and keratinization improver excellent in action capable of suppressing occurrence of wrinkle and removing wrinkle and suppressing parakeratosis of skin, hyperplasia of epidermis and abnormality of lipometabolism and excellent in recovery of normal function and retention of homeostasis. CONSTITUTION:The wrinkle improver and keratinization improver consists of an amine derivative of formula I (R is 8-40C straight-chain or branched chain hydrocarbon group which may have OH; R to R are H or 1-7C hydrocarbon group which may have OH; R is 2-6C hydrocarbon group which may have OH; X is OR , CO2R or CONR R (R to R are H or 1-20C hydrocarbon which contains O) or its acid addition salt or quaternary compound, e.g. 1-(2 hydroxyethylamino)-2,16-hexadecanediol. This compound has action capable of suppressing DNA synthesis of an epidermic cell, promoting differential induction and suppressing hyperplasia of epidermis. The compound of formula I is obtained by subjecting an alcohol of formula 2 to halogenation or sulfonic acid esterification and adding an amine of formula 4 to the resultant compound of formula 3.

    SKIN COSMETIC
    74.
    发明专利

    公开(公告)号:JPH06172150A

    公开(公告)日:1994-06-21

    申请号:JP32325592

    申请日:1992-12-02

    Applicant: KAO CORP

    Abstract: PURPOSE:To provide a skin cosmetic having high safety and excellent pigmentation improving effect and topically applied to the pigmented part of the spots, freckles and sun-burnt skin to cure or ameliorate the pigmented part and even return the pigmented skin to the normal skin color. CONSTITUTION:The objective skin cosmetic contains (A) at least one kind of compounds selected from glycyrrhetinic acid and its esters (e.g. glycerol glycyrrhetinate and stearyl glycyrrhetinate) and (B) at least one kind of compounds selected from ascorbyl phosphate and its salts (e.g. K salt, Na salt and Mg salt). The amount of the component A in the cosmetic is 0.01-30wt.% (especially 0.1-20wt.%), that of the component B is 0.01-20wt.% (especially 0.1-10wt.%) and the A/B ratio is l/20 to 10/1. The cosmetic is free from skin stimulation, onset of allergy, etc., and has high safety.

    BEAUTIFYING COSMETIC COMPRISING P-HYDROXYCINNAMIC ACID DERIVATIVE AS ACTIVE INGREDIENT

    公开(公告)号:JPH05105620A

    公开(公告)日:1993-04-27

    申请号:JP26640591

    申请日:1991-10-15

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain a beautifying cosmetic having excellently improving effects on skin pigmentation, capable of treating and moderating pigmented skin to return to a normal color of skin by locally applying the cosmetic to stain, freckle and pigmentation part after suntan. CONSTITUTION:The objective cosmetic contains 0.01-50wt.%, preferably 0.1-20wt.% p-hydroxycinnamic acid of the formula (at least one of R1 and R2 is lower alkyl and the rest is H; R3 is H or lower alkyl) such as p-hydroxy-beta- methylcinnamic acid ethyl ester as an active ingredient. A dose is preferably 1-20mg based on 1cm skin surface in the case of cream of ointment state and 1-10mg in the case of liquid preparation. The compound, for example, is obtained by condensing p-hydroxygenzaldehyde with an alkylmalonic acid in the presence of a base such as pyridine or piperidine and optionally esterifying.

    SKIN DRUG FOR EXTERNAL USE
    78.
    发明专利

    公开(公告)号:JPS63297309A

    公开(公告)日:1988-12-05

    申请号:JP13205487

    申请日:1987-05-28

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain a skin drug for external use, containing a specific lipid derivative and surfactant and capable of enhancing water holding power of a keratinous layer and improving roughening of the skin. CONSTITUTION:A medicinal skin drug for external use or cosmetic (e.g. cream, milky lotion, toilet water, lipstick, foundation or hairdressing) containing a lipid derivative expressed by formula I [R1 is 10-26C alkyl; R2 is 9-25C alkyl; X and Y are H or phosphoric acid ester group expressed by formula II (R3-R5 are H, 1-6C alkyl or aralkyl), provided that X and Y are not H at the same time]. The amount of the blended compound expressed by formula I is preferably 0.1-20wt.% based on the total composition in the case of an emulsion type agent and 5-25wt.% in the case of an oily agent containing a liquid hydrocarbon as a base. The surfactant has action on enhancement of effects and a glyceryl ether expressed by formula III [R6 is 8-24C alkyl, especially preferably a group expressed by formula IV (p is 4-10; q is 5-11)] is preferred. The amount thereof blended is 0.1-5wt.% based on the total composition.

    AGENT FOR EXTERNAL USE
    80.
    发明专利

    公开(公告)号:JPS6330406A

    公开(公告)日:1988-02-09

    申请号:JP17541486

    申请日:1986-07-25

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain an external agent having excellent melanin-suppressing effect (skin-beautifying effect) and high safety, by compounding castanospermine as an active compound. CONSTITUTION:The objective external agent having remarkable skin-beautifying effect and high safety can be produced by adding preferably >=0.01wt%, especially 1-20wt% castanospermine of formula as an active component to various external agents such as ointment, gel, pack, cream, foundation, sebaceous gland activation cosmetic, etc. The melanin-suppressing and skin-beautifying effects of the above active component are absolutely different from those of conventional skin-beautifying agent and are supposed to be based on the conversion of the sugar chain of tyrosinase to suppress the development of tyrosinase activity. The above external agent may be compounded with other drug-active components such as anti-inflammatory analgesic agent, etc., in addition to the above active component. Especially, the effect can be promoted by the addition of a substance capable of improving the increasing tendency of melanin in epidermis by delaying the keratinization of cuticle.

Patent Agency Ranking