Abstract: The amide derivative of the present invention is one represented by the following general formula (II) and the dermatologic preparation of the present invention is one containing said amide derivative. ##STR1## wherein R.sup.11 represents a straight-chain or branched hydrocarbon group carrying 10 to 40 carbon atoms; R.sup.12 represents a straight-chain or branched hydrocarbon group carrying 1 to 39 carbon atoms; R.sup.13 represents a hydrogen atom or a hydrocarbon group carrying 1 to 6 carbon atoms; and R.sup.14 represents a hydrogen atom or a hydrocarbon group having a straight-chain, branched or cyclic structure and carrying 1 to 40 carbon atoms which may contain an oxygen atom.

Abstract: A composition for external skin care comprising an amine derivative represented by the following formula (1), ##STR1## wherein R.sup.1 is a linear, branched, or cyclic saturated or unsaturated hydrocarbon group having 4-40 carbon atoms, and R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are individually a hydrogen atom or a hydrocarbon group having 1-10 carbon atoms, which may be substituted or unsubstituted by 1 or more hydroxy groups; or an acid addition salt thereof, in an amount from 0.0001 to less than 0.1% by weight; and a method of curing wrinkles and keratinization of the skin characterized by applying said amine derivative or its salt to the skin.

Abstract: A fluorine-modified silicone derivative having an organopolysiloxane chain which is partly substituted by the siloxane chain of the following general formula (1), (2) or (3), ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sub.f, R.sub.f ', l, m, n and r are as described herein, a preparation process thereof, intermediates useful for the preparation thereof and cosmetic compositions containing this derivative.

Abstract: The invention relates to UV absorbers and cosmetic compositions containing a naphthalenemethylenemalonic diester represented by the following formula (1): ##STR1## wherein NAP represents a naphthalene group which may optionally have a substituent, and R.sup.1 and R.sup.2 each independently represent a hydrocarbon group, an alkoxyalkyl group, or an alkoxyalkylenoxyalkyl group. The UV absorbers and the cosmetic compositions of the invention exhibit excellent ultraviolet ray absorbing action, and are stable to light.

Abstract: Silicone derivatives having polysiloxane units represented by the following general formulae (A), (B) and (C): ##STR1## are useful as ingredients in cosmetic compositions.

Abstract: Novel siloxane derivatives represented by general formula (1): ##STR1## A method for producing the siloxane derivatives and agents such as cosmetic preparations, emulsifying dermatotherapeutic external agents and the like including at least one of the siloxane derivatives are also disclosed.

Abstract: A fluorine-modified silicon compound having a polymerization degree of from 1 to 400 and containing at least one siloxane unit represented by formula (1): ##STR1## wherein R.sup.1 represents an aliphatic straight-chain or branched hydrocarbon group having 1 to 20 carbon atoms or an alicyclic hydrocarbon group having 5 to 10 carbon atoms or an aromatic hydrocarbon compound having 6 to 10 carbon atoms; and m represents 0 or an integer of from 1 to 10; a process for preparing the same; and a cosmetic containing the same are disclosed. The fluorine-modified silicone derivative exhibits high water- and oil-repellency to provide cosmetics which wear long and have a good feel on use.

Abstract: Amino derivatives represented by the following general formula (1): ##STR1## and external skin care preparations containing such an amide derivative, are useful for preventing or curing skin roughness. Intermediates useful for the preparation of such amides are also disclosed.

Abstract: A novel alcohol-modified silicone ester derivative of the following formula (I): ##STR1## wherein R is a saturated or unsaturated, linear, branched or cyclic aromatic residual or hydrocarbon group; a, b and c are numbers which sum falls in the range from 0 to 130; d is a number lying between 0 and 1; and 1, m and n are numbers which sum falls in the range from 0 to 6.Cosmetic compositions containing the above silicone ester derivative (I) were also disclosed.The silicone ester derivative (I) is useful as a cosmetic ingredient due to the capability of improving feel on use.

Abstract: A 4,4-Dimethyl-1-phenylpentane-1,3-dione derivatives represented by the following formula (1): ##STR1## wherein all symbols are defined in the disclosure, is disclosed. An ultraviolet ray absorbent and a cosmetic comprising the derivative are also disclosed. The derivative of the present invention have excellent ultraviolet ray absorbing performance and superior light stability, and the ultraviolet ray absorbent and cosmetic comprising the derivative have excellent effect to prevent sunburn.

Abstract: A novel alcohol-modified silicone ester derivative of the following formula (I): ##STR1## wherein R is a saturated or unsaturated, linear, branched or cyclic aromatic residual or hydrocarbon group; a, b and c are numbers which sum falls in the range from 0 to 130; d is a number lying between 0 and 1; and 1, m and n are numbers which sum falls in the range from 0 to 6.Cosmetic compositions containing the above silicone ester derivative (I) were also disclosed.The silicone ester derivative (I) is useful as a cosmetic ingredient due to the capability of improving feel on use.

Abstract: Novel siloxane derivatives represented by general formula (1): ##STR1## A method for producing the siloxane derivatives and agents such as cosmetic preparations, emulsifying dermatotherapeutic external agents and the like including at least one of the siloxane derivatives are also disclosed.

Abstract: An amide derivative represented by the following general formula (II): ##STR1## (wherein R.sup.3 represents a straight-chain or branched, saturated or unsaturated hydrocarbon group carrying 10 to 40 carbon atoms; R.sup.4 represents a straight-chain or branched hydrocarbon group carrying 3 to 39 carbon atoms; and R.sup.5 represents a hydrogen atom, a straight-chain or branched, saturated or unsaturated hydrocarbon group carrying 10 to 40 carbon atoms or an acyl group); and a dermatologic preparation containing the same.

Abstract: An ester-modified silicone derivative of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each represents a saturated or unsaturated straight- or branched-chain aliphatic hydrocarbon group having from 2 to 30 carbon atoms, a saturated or unsaturated alicyclic hydrocarbon group having from 3 to 30 carbon atoms or an aromatic hydrocarbon group having from 6 to 30 carbon atoms; l and m each represents a number of 0 to 100; n represents a number of 1 to 100; a represents a number of 3 to 16; and b represents a number of 1 to 3 is disclosed as well as a cosmetic composition containing the ester-modified silicone derivative.

Abstract: A novel aroyl ketone derivative represented by formula (I) is disclosed.Ar(COCH.sub.2 COR.sup.1).sub.n (I)wherein R.sup.1 represents a saturated or unsaturated hydrocarbon group having 1-24 carbon atoms, or a linear or branched alkoxyalkyl or alkenyloxyalkyl group having 1-24 carbon atoms, dialkylamino group having 1-24 carbon atoms, Ar represents a benzene or naphthalene ring which may be substituted with one or more hydroxyl groups, alkoxy groups having 1-24 carbon atoms, alkenyloxy groups having 1-24 carbon atoms, polyoxyleneoxy groups, mono- or dialkyl amino groups having 1-24 carbon atoms, or .alpha.-methylenedioxy groups, and n denotes an integer of 1-4. An UV-ray absorber and cosmetic composition comprising the aroyl ketone derivative of formula (I) are also disclosed.

Abstract: An amide derivative represented by the following general formula (I) or (II): ##STR1## (wherein R.sup.1 and R.sup.2 represent each a straight-chain or branched, saturated or unsaturated hydrocarbon group provided that one of them carries 26 to 39 carbon atoms while the other carries 9 to 39 carbon atoms); or ##STR2## (wherein R.sup.3 represents a straight-chain or branched, saturated or unsaturated hydrocarbon group carrying 10 to 40 carbon atoms; R.sup.4 represents a straight-chain or branched hydrocarbon group carrying 3 to 39 carbon atoms; and R.sup.5 represents a dydrogen atom, a straight-chain or branched, saturated or unsaturated hydrocarbon group carrying 10 to 40 carbon atoms or an acyl group);and a dermatologic preparation containing the same.

Abstract: A novel aroyl ketone derivative represented by formula (I) is disclosed:Ar(COCH.sub.2 COR.sup.1).sub.n (I)wherein R.sup.1 represents a saturated or unsaturated hydrocarbon group having 1-24 carbon atoms, or a linear or branched alkoxyalkyl or alkenyloxyalkyl group having 1-24 carbon atoms, dialkylamino group having 1-24 carbon atoms, Ar represents a benzene or naphthalene ring which may be substituted with one or more hydroxyl groups, alkoxy groups having 1-24 carbon atoms, alkenyloxy groups having 1-24 carbon atoms, polyoxyleneoxy groups, or .alpha.-methylenedioxy groups, and n denotes an integer of 1-4. An UV-ray absorber and cosmetic composition comprising the aroyl ketone derivative of formula (I) are also disclosed. Aroyl ketone derivative (I) of the present invention can provide an excellent UV-ray absorbing effect and has outstanding stability against light, and the UV-ray absorber or cosmetic composition containing the aroyl ketone derivative (I) can exhibit an excellent sunscreening effect.

Abstract: Novel siloxane derivatives represented by general formula (1): ##STR1## A method for producing the siloxane derivatives and agents such as cosmetic preparations, emulsifying dermatotherapeutic external agents and the like including at least one of the siloxane derivatives are also disclosed.

Abstract: An external skin care preparation comprising a compound represented by the following general formula (I) or (II), or a salt thereof: ##STR1## wherein R.sup.1 means an aliphatic hydrocarbon group having 9-25 carbon atoms, A and B denote specific groups respectively, R.sup.6 and R.sup.7 are individually an aliphatic hydrocarbon group having 10-26 carbon atoms, and R.sup.8 denotes a group --CH.sub.2 CH.sub.2 OH, --CH.sub.2 COOH, or --COCH.sub.3.