摘要:
The present invention is directed to a fluorine-modified silicone derivative the organopolysiloxane chain which is partly substituted by the siloxane chain of the following general formula (1), (2) or (3), a preparation process thereof, intermediates useful for the preparation thereof and cosmetic compositions containing this derivative. ##STR1## wherein Rf and Rf' mean individually a perfluoroalkyl group having 1-20 carbon atoms or a .omega.-H-perfluoroalkyl group represented by the formula H(CF.sub.2).sub.t -- in which t stands for an integer of 1-20, R.sup.1 may be identical with or different from each other and means a straight-chain or branched aliphatic hydrocarbon group having 1-20 carbon atoms, or an alicyclic or aromatic hydrocarbon group having 5-10 carbon atoms, R.sup.2 denotes a hydrogen atom, a straight-chain or branched aliphatic hydrocarbon group having 1-20 carbon atoms, an alicyclic or aromatic hydrocarbon group having 5-10 carbon atoms, a perfluoroalkyl group having 1-20 carbon atoms, or a .omega.-H-perfluoroalkyl group represented by the formula H(CF.sub.2).sub.u --in which u stands for an integer of 1-20, R.sup.3 is a divalent hydrocarbon group having 2-16 carbon atoms, X and Y mean individually a single bond, --CO-- or a divalent hydrocarbon group having 1-6 carbon atoms, l stands for a number of 2-16, m and n are individually a number of 1-6, and r is a number of 0-50. Cosmetic compositions containing this compound have excellent water and oil repellency and are also good in lastingness of makeup and feeling upon use.
摘要:
The present invention is directed to cosmetic compositions containing a fluorine-modified silicon derivative the organopolysiloxane chain which is partly substituted by the siloxane chain of the following general formula (1), (2) or (3) ##STR1## wherein Rf and Rf' mean individually a perfluoroalkyl group having 1-20 carbon atoms or a .omega.-H-perfluoroalkyl group represented by the formula H(CF.sub.2).sub.t -- in which t stands for an integer of 1-20, R.sup.1 may be identical with or different from each other and means a straight-chain or branched aliphatic hydrocarbon group having 1-20 carbon atoms, or an alicyclic or aromatic hydrocarbon group having 5-10 carbon atoms, R.sup.2 denotes a hydrogen atom, a straight-chain or branched aliphatic hydrocarbon group having 1-20 carbon atoms, an alicyclic or aromatic hydrocarbon group having 5-10 carbon atoms, a perfluoroalkyl group having 1-20 carbon atoms, or a .omega.-H-perfluoroalkyl group represented by the formula H(CF.sub.2).sub.u -- in which u stands for an integer of 1-20, R.sup.3 is a divalent hydrocarbon group having 2-16 carbon atoms, X and Y mean individually a single bond, --CO-- or a divalent hydrocarbon group having 1-6 carbon atoms, l stands for a number of 2-16, m and n are individually a number of 1-6, and r is a number of 0-50.
摘要:
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.
摘要:
Compounds represented by the following general formula: ##STR1## wherein Rf and Rf' mean a perfluoroalkyl group having 1-20 carbon atoms or a (.omega.-H-perfluoroalkyl group represented by the formula H(CF.sub.2).sub.t in which t stands for an integer of 1-20, R.sup.2 denotes a hydrogen atom, a straight-chain or branched aliphatic hydrocarbon group having 1-20 carbon atoms, an alicyclic or aromatic hydrocarbon group having 5-10 carbon atoms, a perfluoroalkyl group having 1-20 carbon atoms, or .omega.-H-perfluoroalkyl group represented by the formula H(CF.sub.2).sub.u - in which u stands for an integer of 1-20, X and Y mean individually a single bond, --CO-- or a divalent hydrocarbon group having 1-6 carbon atoms, l stands for a number of 2-16, and m and n are individually a number of 1-6. The compounds are useful for preparing fluorine-modified silicone derivatives suitable for cosmetic compositions.
摘要:
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.
摘要:
A partition structure of a power train device is provided with: a second differential coupled with an external first differential so as to receive a driving force input to the first differential; a case having a first end facing to the first differential, a second end opposed to the first end and a wall defining the case, the case rotatably housing the second differential and an oil for lubrication of the second differential; and a seal member disposed at the first end of the case and between the first differential and the second differential so as to prevent the oil in the case from mixing with an external fluid existing outside with respect to the case and the seal member.
摘要:
This differential apparatus has a differential casing rotated by an engine, side gears on an output side arranged within the differential casing and spline-connected to output shafts, pinion gears for connecting the gears, storing holes for slidably and rotatably storing the gears, a thrust block for receiving thrust forces of the output shafts, washers, respectively opposed to the gears and movably arranged with respect to the thrust block in an axial direction, and a spring for pressing the washers, against the gears, and giving frictional torque to said gears. Accordingly, no thrust forces of the output shafts are inputted to the washer members and the spring and initial torque is released from influences of the thrust forces of the output shafts so that stable differential limiting characteristics can be obtained.
摘要:
A differential gear has a simple structure, is able to produce a difference of differential limiting force between a driving operation of a vehicle in which the differential gear is installed and a coasting operation of the vehicle, secures the strength of a thrust bearing adopted for the differential gear, and provides a stabilized differential limiting force, in the driving operation, helical side gears receive thrusting forces acting away from each other, the differential case has inward support faces to axially support the helical side gears, the helical side gear has an annular inward counter face and an annular outward counter face on the inner circumferential side of opposite ends of a teeth area, and between the inward counter faces, there is a thrust bearing having a plurality of circumferentially arranged rollers.
摘要:
A differential gear has a simple structure, is able to produce a difference of differential limiting force between a driving operation of a vehicle in which the differential gear is installed and a coasting operation of the vehicle, secures the strength of a thrust bearing adopted for the differential gear, and provides a stabilized differential limiting force, in the driving operation, helical side gears receive thrusting forces acting away from each other, the differential case has inward support faces to axially support the helical side gears, the helical side gear has an annular inward counter face and an annular outward counter face on the inner circumferential side of opposite ends of a teeth area, and between the inward counter faces, there is a thrust bearing having a plurality of circumferentially arranged rollers.
摘要:
A partition structure of a power train device is provided with: a second differential coupled with an external first differential so as to receive a driving force input to the first differential; a case having a first end facing to the first differential, a second end opposed to the first end and a wall defining the case, the case rotatably housing the second differential and an oil for lubrication of the second differential; and a seal member disposed at the first end of the case and between the first differential and the second differential so as to prevent the oil in the case from mixing with an external fluid existing outside with respect to the case and the seal member.