摘要:
This invention relates to a cosmetics characterized in that it contains a gelling agent comprising an organopolysiloxane having a silicon-bonded organic group represented by general formula:R1—X—CO—NH—[X—N(—CO—X—R1)]p—X— (1) (wherein R1 designates a group containing metal salt of a carboxylic acid represented by formula —COO− (Mn+)1/n, (where M is a metal that has a valence of 1 or higher); X's designate the same or different C2 to C14 bivalent hydrocarbon groups; and p designates an integer from 0 to 10.). Preferably, the organosiloxane has an optionally substituted C9 or more univalent hydrocarbon group. Adding the gelling agent makes it possible to provide a cosmetic possessing superior temporal stability, water retention properties, sensory feel, gloss, curl retention, and cleansing power.
摘要:
An organopolysiloxane represented by the following general formula (1), where R1 represents an aliphatic, unsaturated univalent hydrocarbon group, R2 represents identical or different univalent hydrocarbon groups except for aliphatic unsaturated bonds, R3 represents an oxygen atom or a bivalent hydrocarbon group, R4 represents a univalent hydrocarbon group that contains an acryloxy or methacryloxy group, R5 may represent an alkyl group, alkoxyalkyl group, alkenyl group, or an acyl group; “n” is an integer from 5 to 1000, and “a” is 1 or 2, can be used for the preparation of a silicone composition as a main component of a composition or as a surface-treating agent for thermally conductive fillers, can be combined with large amounts of thermally conductive fillers, is easy to handle, and imparts to the composition appropriate thixotropy.
摘要:
A process for preparing a silicone compound, the process comprising reacting (A) a silicon compound having silicon-bonded alkoxy groups or silicon-bonded aryloxy groups and (B) a disiloxane in the presence of (C) a carboxylic acid, (D) an acid catalyst, and (E) a carboxylic anhydride, and a process for preparing a silicone compound, the process comprising reacting (F) a silicon compound having silicon-bonded acyloxy groups and (B) a disiloxane compound in the presence of (D) an acid catalyst, (E) a carboxylic anhydride, and (G) an alcohol.
摘要:
A method for producing a basic amino acid-modified organopolysiloxane comprising reacting (A) a basic amino acid with (B) an organopolysiloxane having carboxylic anhydride groups bonded to silicon atoms.
摘要:
An anti-staining additive comprising a higher unsaturated aliphatic acid ester-modified organosilicon compound that is produced by carrying out an addition reaction between (a) a higher unsaturated aliphatic acid ester that contains more than one aliphatically unsaturated bond in each molecule and (b) an organosilicon compounds that contains at least 1 silicon-bonded hydrogen atom in each molecule with the aliphatically unsaturated bonds in component (a) present in molar excess over the silicon-bonded hydrogen in component (b). The additive can be used at 0.01 to 50 weight percent in a polyorganosiloxane composition that cures at room temperature by a condensation reaction.
摘要:
The present invention relates to a radiation curable silicone release coating composition comprising an alicyclic epoxy-functional silicone graft copolymer and a photocuring catalyst. The release coatings of this invention upon curing by exposure to UV light form release films that are highly adhesive for a variety of substrates, have an excellent coatability, and its release resistance can be adjusted over a wide range of values.
摘要:
There is disclosed a novel silicone-grafted, alicyclic epoxy-functional vinyl polymer prepared by copolymerizing(A) 1 to 80 weight % of a silicone macromonomer which bears a vinyl-polymerizable group at one molecular chain terminal;(B) 5 to 90 weight % of a vinyl-polymerizable, alicyclic epoxy-functional monomer; and(C) 0.01 to 94 weight % of a vinyl-polymerizable non-silicone monomer that is free of alicyclic epoxy functionality.The alicyclic epoxy functionality imparts improved reactivity and the grafted polymer according to the invention provides cured films which exhibit good release and water-repellency.
摘要:
A highly efficient method for preparing a diphenylsiloxane-dimethylsiloxane copolymer having a narrow molecular weight distribution, said method comprising:(I) polymerizing(A) a mixture of hexamethylcyclotrisiloxane and hexaphenylcyclotrisiloxane, using as polymerization initiator(B) a lithium compound having the formula ##STR1## in which R independently denotes a monovalent hydrocarbon radical, X and X' are selected from the group consisting of hydrogen and lithium, with the proviso that one of X and X' must be lithium, and m is an integer having a value of at least 1, optionally, in the presence of(C) a molecular-weight regulator selected from the group consisting of water and a compound having the formula ##STR2## in which R has its previously defined meaning and p is an integer having a value of at least 1, said polymerization taking place in the presence of both(D) a nitrile compound and(E) an active hydrogen-free polar solvent; and(II) terminating the polymerization reaction product from step (I) with a neutralizing agent selected from the group consisting of an acid and an organohalosilane.
摘要:
There is disclosed a novel phtalic acid ester-modified organopolysiloxane having the general formula ##STR1## wherein R.sup.1 is a monovalent hydrocarbon group, R.sup.2 is a group R.sup.1 or a group with the formula ##STR2## with the proviso that at least one of the groups R.sup.2 in each molecule is the group with the formula ##STR3## in which R.sup.3 is an alkyl group, R.sup.4 is an alkylene group, and m is a positive integer.The organosiloxane is useful as a co-reactant in the preparation of organic resins such as polyesters, polyamides and polyimides.
摘要:
A hot-melt adhesive which has as its principal component an organopolysiloxane which converts to an isotropic liquid at temperatures of at least 40.degree. C. and which contains the R.sup.1 R.sup.2 SiO unit or R.sup.1 R.sup.2.sub.2 SiO.sub.1/2 unit, wherein R.sup.1 is the --R.sup.3 --CN group, in which R.sup.3 is a divalent organic group having at least one aromatic ring, and R.sup.2 is an alkyl group having from 1 to 4 carbon atoms.