摘要:
Method for preparation of an aqueous emulsion from a curable silicone composition consisting of (A) an organopolysiloxane having at least two silicon-bonded hydroxyl groups, (B) an organohydrogensiloxane, and (C) a curing catalyst, said method being characterized by (i) continuously supplying component (A), component (B) and component (C), or a mixture of components (A) and (B) and component (C) through individual inlet ports into a continuous mixer and mixing said components at a temperature not exceeding 10° C., (ii) continuously supplying the obtained mixture and (D) an aqueous solution of a surface-active agent to an emulsifier, and emulsifying the components at a temperature not exceeding 20° C. An apparatus for the preparation of an aqueous emulsion of a curable silicone composition comprising of a continuous mixer for mixing components (A) through (C), a distribution unit connected to the lower part of the mixer, and an emulsifier. Method for preparation of a suspension of cured silicone particles by allowing such emulsion to stand at room temperature, or heating the aforementioned emulsion.
摘要:
A curable epoxy resin composition comprising at least: (A) a crystalline epoxy resin, (B) a phenol resin, and (C) a silicone resin composed of epoxy-containing organic groups and phenyl groups that define an average unit formula of this component. Component (C) is used in an amount of 0.1 to 500 parts by weight for 100 parts by weight of the sum of weights of components (A) and (B). The composition of the invention is suitable for transfer and injection molding and may find use as a curable epoxy resin composition for sealing parts of electrical and electronic devices.
摘要:
An aqueous emulsion comprises as the disperse phase obtained by emulsifying a mixture consisting of (A) a linear organosilicon polymer whose main chain is composed of diorganosiloxane units and alkylene units and (B) an oil that is liquid at room temperature. The emulsion can be produced by emulsifying a mixture of (a) a diorganopolysiloxane having silicon-bonded hydrogen atoms at the two ends of the molecular chain, (b) a diolefin or diorganopolysiloxane having silicon-bonded alkenyl groups at the two ends of the molecular chain, and (c) an oil that is liquid at room temperature and does not contain hydrosilation-reactive groups, in water, and, in this state, component (a) and component (b) are addition-polymerized using (d) a hydrosilation reaction catalyst. Cosmetic materials incorporating such aqueous emulsions possess excellent lubricating properties, good dispersibility, and adherence; a method of preparation of the emulsion; and skin and hair cosmetic materials prepared from the emulsion with excellent sensation of smoothness and moistness to the touch.
摘要:
An ink cartridge includes a main case and a flexible film. The main case includes an ink-holding portion for holding ink. The ink-holding portion has an indented surface portion and an open side. The flexible film covers the open side of the ink-holding portion. The flexible film has a shape that substantially follows shape of the indented surface portion when substantially no ink is held in the ink-holding portion.
摘要:
The present invention relates to a silicone resin composition of low melt viscosity and excellent reactivity and dispersibility in organic resins. The present invention also relates to a curable resin composition for forming a cured resin of excellent moldability and superior flame retardant properties while having little adverse impact on the human body and the environment as a result of containing no antimony oxides or halogenated epoxy resins. The present invention also relates to a cured resin having little adverse impact on the human body or the environment and possessing superior flame retardant properties.
摘要:
A cosmetic raw material using a vinyl polymer containing carbosiloxane dendritic structures and fluorinated organic group as the main or most important ingredient, a cosmetic product obtained by compounding with the cosmetic raw material, and a method for manufacturing a cosmetic product, in which said cosmetic raw material is mixed with other cosmetic raw materials. The cosmetic raw material exhibits superior compounding stability in cosmetic products and capable of imparting excellent feel and surface protective properties to cosmetic products. The cosmetic product exhibits superior adhesion to the hair and skin.
摘要:
An additive for organic resin comprising a powder comprising (A) a liquid organopolysiloxane having at least 0.001 wt % of silicon-bonded hydrogen atoms and at least 50 dimethylsiloxy repeating units and (B) an inorganic powder; and an organic resin comprising the additive.
摘要:
The present invention provides a highly storage-stable silicone-grafted vinyl copolymer emulsion composition that can produce films and coatings that are highly water repellent, water resistant, adhesive, and printable, the composition including (A) vinyl monomer, (B) carbosiloxane dendrimer that contains a radically polymerizable organic group, (C) surfactant, and (D) radical polymerization initiator.
摘要:
Radical-polymerizable organic group-containing branched siloxane-silalkylene copolymer represented by the general formula: {in the formula, Y is a radical-polymerizable organic group, R1 is 1-10 carbon alkyl or aryl, and X1 is a silyl-alkyl group represented by the following formula in the case when i=1: (in the formula, R1 is the same as aforesaid, R2 is 2-10 carbon alkylene, R3 is 1-10 carbon alkyl, and Xi+1 is a group selected from the group comprising a hydrogen atom, 1-10 carbon alkyl, aryl and the aforesaid silylalkyl group, i is an integer from 1 to 10, which indicates the generation number of the said silylalkyl group and ai is an integer from 0 to 3)}, silicone-containing organic polymer made by polymerizing the said copolymer and method for production thereof.
摘要:
A novel carbosiloxane dendrimer is disclosed containing a radically polymerizable group in the molecule and which possesses excellent polymerization reactivity. The carbosiloxane dendrimer can be used to provide organic polymers as afforded by the polymerization of the carbosiloxane dendrimer either alone or with other organic monomers. The radically polymerizable group-functional carbosiloxane dendrimer with the general formula (R1 is C1 to C10 alkyl or aryl, R2 is a divalent organic group excluding C1 to C10 alkylene, b is 1 to 3, X1 is a silylalkyl group, and Y is a radically polymerizable group). Also, dendrimer-containing organic polymer as afforded by the polymerization of (A) the aforesaid carbosiloxane dendrimer and (B) radically polymerizable organic monomer.