Mitsubishi Chemical Industries Limited

Mitsubishi Kasei Corporation

Hiroshi Urabe

Masayoshi Hasuo

Masahiro Nukui

Seiichi Mukai

Seiji Yoshida

Yukichi Murata

Mamoru Nozomi

Takao Hirota

Shigenori Ohtsuka

Michio Kawai

Tatsuya Ohsako

Setsuko Sasakawa

A photosensitive member for electrophotography comprising a photosensitive layer on a conductive substrate, said photosensitive layer containing as a binder resin a modified polycarbonate resin having the repeating structural units represented by the following general formula (1) and (2); ##STR1## wherein R.sup.1 and R.sup.2 are selected from a hydrogen atom, an alkyl group having 1-3 carbon atoms and a halogen atom, at least one of R.sup.1 and R.sup.2 being the alkyl or the halogen atom, and ##STR2## the ratio of the repeating structural unit of the general formula (1) to that of the general formula (2) being at least 20:80. This photosensitive member is highly resistant to mechanical wear and the deterioration of sensitivity and chargeability.

Photosensitive member for electrophotography

Disclosed herein is a transparent copolyamide which comprises constitutional units derived from a diamine component comprising (a) bis(3-methyl-4-aminocyclohexyl)methane and (b) hexamethylenediamine and a dicarboxylic acid component comprising (c) isophthalic acid and (d) terephthalic acid, the molar ratio of said components simultaneously satisfying the following two formulas:

Transparent copolyamide from bis(3-methyl-4-amino-cyclohexyl)methane

A process for producing a polycarbonate resin having a viscosity-average molecular weight of from 9,000 to 50,000 by reacting at least one bisphenol compound with phosgene or a carbonate, characterized in that a phenol compound having the formula: ##STR1## wherein R is an alkyl group having from 5 to 7 carbon atoms, and R is located at the ortho- or para-position relative to the OH group, is used as a molecular weight modifier.

Process for producing polycarbonate resin with tertiary alryl phenol

A heat transfer recording sheet is disclosed, comprising a base film having provided on one side thereof a coloring material layer containing at least a subliming dye and a binder, wherein said binder is a polycarbonate resin having a repeating unit represented by the formula (I): ##STR1## wherein R.sup.1 represents an aryl group; and R.sup.2 represents a hydrogen atom, an alkyl group or an aryl group. In another embodiment, said binder is a copolymer of polycarbonate resin having a repeating unit represented by the formula (I) and a repeating unit represented by the formula (II) ##STR2## wherein rings A and B each represents a phenylene group or a phenylene group substituted with an alkyl group or a halogen atom; and X represents a divalent group selected from ##STR3## --O--, --S--, --SO--, and --SO.sub.2 --, wherein R.sup.3 and R.sup.4 each represents a hydrogen atom or an alkyl group; and R.sup.5 represents an alkylene group.

Heat transfer recording sheet

A polycarbonate containing from 25 to 100% by weight, based on the total carbonate bond-constituting units, of carbonate bond-constituting units each containing at least one pendant aromatic group, and having an average molecular weight of from 9,500 to 14,000.

Polycarbonate and optical disc substrate

An optical disc substrate made of a polycarbonate containing from 5 to 100% by weight, based on the total carbonate bond-constituting units, of carbonate bond-constituting units having the formula: ##STR1## wherein each of Y and Z is a hydrogen atom or an aliphatic hydrocarbon group having from 1 to 6 carbon atoms, and each of X and W is an aliphatic hydrocarbon group having from 1 to 6 carbon atoms.

Growing community of inventors

Kawasaki, Japan

Hiroshi Urabe