The present invention relates to photoreactive compounds that are particularly useful in materials for the alignment of liquid crystals.
本发明涉及光反应性化合物,特别适用于液晶对准材料的制作。
Process for production of vinyl chloride polymer
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP0172427A2
公开(公告)日:1986-02-26
This process is a process for production of a vinyl chloride polymer by suspension polymerization or emulsion polymerization of vinyl chloride monomer or a mixture of vinyl chloride monomer with a vinyl monomer copolymerizable with said vinyl chloride monomer in an aqueous medium, characterized in that the polymerization is carried out in a polymerizer, the inner wall surface and portions of the auxiliary equipment thereof which may come into contact with the monomer during polymerization being previously coated with a scaling preventive comprising at least one selected from dyes, pigments and aromatic or heterocyclic compounds having at least 5 conjugated π bonds, while controlling the chloride ion concentration in the reaction mixture to not higher than 100 ppm. According to said process, scaling onto the inner wall surface of a polymerizer, etc. during polymerization can be prevented effectively and surely.
509. The action of benzoyl peroxide on polycyclic aromatic hydrocarbons
作者:Ivan M. Roitt、William A. Waters
DOI:10.1039/jr9520002695
日期:——
AROMATIC POLYCARBONATE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS
申请人:KIHARA Akiko
公开号:US20080199215A1
公开(公告)日:2008-08-21
In an electrophotographic photoreceptor including a conductive substrate and a single layer type photosensitive layer, the aromatic polycarbonate is contained to a single layer type photosensitive layer, which aromatic polycarbonate includes a constituent unit represented by the following general formula (1) derived from a compound having a basic asymmetric bishydroxy enamine skeleton represented by the general formula:
Accordingly, the electrophotographic photoreceptor is obtained which is excellent in charge transportability, mechanical strength, electric property, durability, etc. and can form good images for a long time.
HIGH ETCH RESISTANT UNDERLAYER COMPOSITIONS FOR MULTILAYER LITHOGRAPHIC PROCESSES
申请人:De Binod B.
公开号:US20080206667A1
公开(公告)日:2008-08-28
An etch resistant thermally curable Underlayer for use in a multiplayer liyhographic process to produce a photolithographic bilayer coated substrate, the composition having:
(a) at least one cycloolefin polymer comprising at least one repeating unit of Structure (I), and at least one repeating unit of Structure (II), and optionally at least one repeating unit of Structure (III) with the proviso that neither Structure (I) nor Structure (II) nor Structure (III) contains acid sensitive groups.
b) at least one cross-linking agent selected from the group consisting of an amino or phenolic cross-linking agent;
c) a least one thermal acid generator (TAG);
d) at lest one solvent; and
e) optionally, at least one surfactant.