摘要:
There is disclosed an additive for optical resins, wherein, even taking optical uses into consideration, the additive falls off little from such as binder resin layers or resin base materials and enables the exercise of uniform light diffusibility, without luminance unevenness, and high face luminescence. There is further disclosed an optical resin composition which comprises the above additive and a transparent resin and can display very excellent performances in optical properties such as no luminance unevenness and the face luminescence in the case of being employed for optical uses. The additive for optical resins is characterized by comprising organic-inorganic-composite particles having a structure including an organic polymer framework and a polysiloxane framework as essential frameworks. The optical resin composition is characterized by comprising the above additive for optical resins, according to the present invention, and a transparent resin.
摘要:
The particles are obtained by dispersing a carbon black graft polymer, obtained by the reaction between carbon black and a polymer capable of reacting with carbon black, in a polymerizable monomer component, and polymerizing the polymerizable monomer component. The fine particles themselves may be used as toner for developing an electrostatic image, or may be compounded with various components to be used as a resin composition, a coating composition, a thermal transfer ink ribbon coating agent, a thermal transfer ink, a back-coating agent for a magnetic recording medium, etc.
摘要:
A carbon black graft polymer which excels in stability of dispersion in various media, coloring property, and imperviousness to light is obtained by mixing under heating a block- or graft-copolymer having a segment (A) containing a reactive group capable of reacting with a functional group on the surface of carbon black and a segment (B) different in skeletal structure from the segment (A) with carbon black. The carbon black graft polymer, by causing the graft chain thereof to incorporate therein an ethylenically unsaturated double bond and/or a carboxyl group, is enabled to manifest photosensitivity, developability with an alkali, and insulating property and acquire usefulness for a black photocurable resin composition such as, for example, the material for the formation of a black matrix particularly in a color filter.
摘要:
The particles are obtained by dispersing a carbon black graft polymer, obtained by the reaction between carbon black and a polymer capable of reacting with carbon black, in a polymerizable monomer component, and polymerizing the polymerizable monomer component. The fine particles themselves may be used as toner for developing an electrostatic image, or may be compounded with various components to be used as a resin composition, a coating composition, a thermal transfer ink ribbon coating agent, a thermal transfer ink, a back-coating agent for a magnetic recording medium, etc.
摘要:
There is provided a black photoresist composition comprising a carbon black grafted with a polymer compound, a resin material, a crosslinking agent and a photo acid generator, in which specific amounts of the grafted carbon black, the resin material, the crosslinking agent and the photo acid generator are comprised. In addition, there is provided a color filter that has a black matrix made by using this black photoresist composition and is free of protuberances at the overlapping portions of multi-color picture elements and the black matrix. Thus, the present invention is able to provide a black photoresist composition, a color filter using the black photoresist composition, and a method for preparing the color filter that allows the formation of a black matrix having a high density that blocks out light and low reflectance, and the production of a color filter having a high degree of flatness and high film strength.