摘要:
Organic-inorganic composite particles which include a (meth)acrylic resin framework and a polysiloxane framework having in its molecule an organosilicon containing a silicon atom directly and chemically combined with at least one carbon atom of the (meth)acrylic resin framework, and also contain 25 wt % or more of SiO.sub.2 which constitutes the polysiloxane framework and have a mean particle diameter of .gtoreq.0.5 .mu.m. The particles have the mechanical resilience necessary to maintain a constant gap distance between a pair of members to be arranged with the correct gap distance between them, and the hardness and fracture strength necessary to maintain the gap constant with smaller numbers; and also do not readily cause physical damage to the members. The composite particles can be employed as spacers 8 for a liquid crystal display as they stand or with an adhesive layer formed on the surface. The composite particles can also have a conductive layer formed on the surface, and be employed as conductive particles.
摘要:
Organic-inorganic composite particles which include a (meth)acrylic resin framework and a polysiloxane framework having in its molecule an organosilicon containing a silicon atom directly and chemically combined with at least one carbon atom of the (meth)acrylic resin framework, and also contain 25 wt % or more of SiO.sub.2 which constitutes the polysiloxane framework and have a mean particle diameter of .gtoreq.0.5 .mu.m. The particles have the mechanical resilience necessary to maintain a constant gap distance between a pair of members to be arranged with the correct gap distance between them, and the hardness and fracture strength necessary to maintain the gap constant with smaller numbers; and also do not readily cause physical damage to the members. The composite particles can be employed as spacers 8 for a liquid crystal display as they stand or with an adhesive layer formed on the surface. The composite particles can also have a conductive layer formed on the surface, and be employed as conductive particles.
摘要:
An electrostatic image developer which has an improved charge retaining ratio is disclosed. The developer comprises toner particles comprising (a) a binding resin and (b) a coloring agent and having a mean particle diameter of not more than 25 &mgr;m, and (c) organic-inorganic composite particles attached or fixed to the surface or the proximity of surface of said toner particles. The composite particle contains an organic polymer framework and a polysiloxane framework, the polysiloxane framework having in the molecule thereof an organosilicon which has a silicon atom to which at least one carbon atom in said organic polymer framework combined directly, the organic-inorganic composite particles having SiO2 as a component of said polysiloxane framework at a content in the range of 10 to 90% by weight. The composite particles have a mean particle diameter in the range of 0.01 to 5 &mgr;m. The mixing ratio of (b) the coloring agent to (a) the binding resin in the toner particles in 20 to 2 parts by weight of (b) to 80 to 98 parts by weight of (a), as the total amount of (a) and (b) is 100 parts. The mixing ratio of the organic-inorganic composite particles to the toner particles is 0.01 to 20 parts by weight of the composite particles to 100 parts by weight of the toner particles.
摘要:
Organic-inorganic composite particles which include a (meth)acrylic resin framework and a polysiloxane framework having in its molecule an organosilicon containing a silicon atom directly and chemically combined with at least one carbon atom of the (meth)acrylic resin framework, and also contain 25 wt % or more of SiO.sub.2 which constitutes the polysiloxane framework and have a mean particle diameter of .gtoreq.0.5 .mu.m. The particles have the mechanical resilience necessary to maintain a constant gap distance between a pair of members to be arranged with the correct gap distance between them, and the hardness and fracture strength necessary to maintain the gap constant with smaller numbers; and also do not readily cause physical damage to the members. The composite particles can be employed as spacers 8 for a liquid crystal display as they stand or, with an adhesive layer formed on the surface. The composite particles can also have a conductive layer formed on the surface, and be employed as conductive particles.
摘要:
In the adhesive spacers which are synthesized as by the impact method in a high-speed air current, resin particles formed solely of an adhesive layer are included in a large amount besides those of adhesive spacers. An adhesive particulate composition is obtained by adjusting these resin particles in terms of grain size. The adhesive particulate composition containing (a) adhesive particles having a thermoplastic resin-containing layer cover at least part of the surfaces of the core particles having an average particle diameter in the range of 1 to 20 .mu.m and a coefficient of variation of not more than 10% and (b) adhesive layer particles formed of the thermoplastic resin and having a ratio of the number of (b) the adhesive layer particles to that of (a) the adhesive particles of not more than 30%, adhesive spacers for a liquid crystal display panel formed of the composition, and the liquid crystal display panel using the spacers are disclosed.
摘要:
The present invention provides: a spacer for a liquid crystal display, which is difficult to aggregate when dispersed onto a substrate in a dry manner; a production process for the spacer; and a liquid crystal display including the spacer. The spacer has a mean particle diameter of 0.5 to 25 .mu.m, a coefficient of variation of 10% or less in particle diameter, and a fluidity of 30% or more, and preferably further has an electrification retention ratio of 40% or more at 5 minutes after corona electrification.
摘要:
The invention provides a reagent for diluting a blood sample, comprising water, polyoxyethylene alkyl ether having a hydroxyl value of 52 to 60, and an osmo-regulator for regulating the osmotic pressure of the reagent in the range of 150 to 400 mOsm/kg, as well as a method for measuring the mean corpuscular volume of a blood sample.
摘要:
Methods for producing a silica aerogel coating by: producing a wet gel formed by the hydrolysis and polymerization of an alkoxysilane having an ultraviolet-polymerizable unsaturated group; organically modifying the wet gel with an organic-modifying agent to obtain an organically modified silica having a modification ratio of 10-30% based on a total amount of Si—OH in the wet gel; coating a dispersion of the organically modified silica on a substrate to form a layer; and subjecting the layer of the organically modified silica to ultraviolet irradiation and baking, wherein the silica aerogel coating includes the organically modified silica and wherein the silica aerogel coating has a refractive index in the range of 1.05-1.2.
摘要:
A method for producing a silica aerogel coating comprising the steps of organically modifying a wet gel formed by the hydrolysis and polymerization of an alkoxysilane having an ultraviolet-polymerizable unsaturated group, and subjecting a layer of the resultant organically modified silica to ultraviolet irradiation and baking.
摘要:
The present invention relates to a method for producing a resin-impregnated structure reinforced by continuous fibers in which a practically endless continuous fiber bundle is dipped in a bath of molten resin and simultaneously passes through a space between a pair of opening pins. The opening pins can be positioned on sides of the bundle so that the continuous fibers are sandwiched by the pins without coming in contact with them. By doing so, the fibers of the bundle can be opened and can be impregnated with the resin. In addition, the foregoing continuous fiber-reinforced resin structure may be cut into pieces having a desired length to provide columnar products.