BISPHENOL COMPOSITION CONTAINING AROMATIC ALCOHOL SULFONATE AND METHOD FOR PRODUCING SAME, POLYCARBONATE RESIN AND METHOD FOR PRODUCING SAME, AND BISPHENOL PRODUCTION METHOD
A thermochromic pigment composition including compounds of formula (I):
in which: X represents CHR
2
, O, OCO or CH═CH; Y represents O, COO, or OCOO; R
1
represents H or (CH
2
)
p
CH
3
; R
2
represents phenyl or H; m=12-18; n=0-14; p=12-18; and on the condition that, if n=0, X represents CHR
2
or CH═CH.
The thermochromic pigment compositions having compounds of formula (I), include thermochromic pigment microcapsules. The thermochromic pigment capsules are useable for thermochromic pigment compositions in ink which may be used writing instruments.
Yellow Thermochromic Dyes, Inks Composition And Level Indicators
申请人:Chromatic Technologies, Inc.
公开号:US20160333210A1
公开(公告)日:2016-11-17
A new leuco dye produces a yellow color while demonstrating also exceptional light and thermal stability under light.
一种新的白色染料产生黄色,同时在光照下表现出卓越的光和热稳定性。
Phenylurethane compounds and methods for producing same, asymmetric urea compounds and methods for producing same, barbituric acid derivative, and diazo thermal recording material containing the derivative
申请人:FUJI PHOTO FILM CO., LTD.
公开号:US20020161225A1
公开(公告)日:2002-10-31
Phenylurethane compounds of the following general formula (1); asymmetric urea compounds of the following general formula (10) obtained from the phenylurethane compounds; barbituric acid derivatives of general formula (18) produced from the asymmetric urea compounds, which have specific substituents and are useful in diazo thermal recording materials; and diazo thermal recording materials containing the barbituric acid derivative.
1
申请人:NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY
公开号:US20210403409A1
公开(公告)日:2021-12-30
The objective of the present invention is to provide a method for producing a polycarbonate safely and efficiently even without using a base. The method for producing a carbonate derivative according to the present invention is characterized in comprising the step of irradiating a high energy light to a composition comprising the halogenated methane and the hydroxy group-containing compound in the presence of oxygen, wherein a molar ratio of a total usage amount of the hydroxy group-containing compound to 1 mole of the halogenated methane is 0.05 or more.