RECORDING MATERIAL PRODUCED USING NON-PHENOL COMPOUND
申请人:NIPPON SODA CO., LTD.
公开号:US20150284321A1
公开(公告)日:2015-10-08
An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol compound that is a safe compound in no danger of corresponding to an endocrine disruptor and is good in color developing performance. The non-phenol compound used in the present invention is at least one selected from the group consisting of compounds represented by the following formulas (I) to (III).
The present invention is to provide methods for producing highly pure 4,4′-dihydroxydiphenyl sulfone monoethers advantageously in industrial production.
In a process for producing a compound represented by Formula (I)
1
(wherein, R
1
and R
2
are each independently halogen, alkyl having 1 to 8 carbons or alkenyl having 2 to 8 carbons; m and n are each independently 0 or an integer of 1 to 4; and R
3
is alkyl having 1 to 8 carbons, alkenyl having 2 to 8 carbons, cycloalkyl having 3 to 8 carbons or optionally substituted aralkyl), (1) a pH adjustment is carried out twice or more in the purification process, (2) an excessive amount of alkyl halide used is removed, (3) a solvent, such as water, containing 0.05 ppm or less of iron components is used, (4) tanks with corrosion-resistant layers over the inner walls are used, (6) a chelating agent is added, and (7) a means of drying with mechanical stir is applied.
Novel compound for color-producing composition, and recording material
申请人:——
公开号:US20010044553A1
公开(公告)日:2001-11-22
A urea-urethane compound having one or more urea groups and one or more urethane groups in the molecular structure, the number of said urea groups (A) and the number of said urethane groups (B) satisfying the following numerical formula:
10≧(
A+B
)≧3
wherein each of A and B is an integer of 1 or more.
NOVEL COMPOUND FOR COLOR-PRODUCING COMPOSITION, AND RECORDING MATERIAL
申请人:KABASHIMA Kazuo
公开号:US20100105941A1
公开(公告)日:2010-04-29
A urea-urethane compound having one or more urea groups and one or more urethane groups in the molecular structure, the number of said urea groups (A) and the number of said urethane groups (B) satisfying the following numerical formula:
10≧(
A+B
)≧3
wherein each of A and B is an integer of 1 or more.
DIPHENYL SULFONE CROSSLINKING TYPE COMPOUNDS AND RECORDING MATERIALS USING THEM
申请人:NIPPON SODA CO., LTD.
公开号:EP0860429A1
公开(公告)日:1998-08-26
Diphenyl sulfone crosslinking type compounds of general formula (I) [wherein X and Y are each independently a linear or branched saturated or unsaturated C1-C12 hydrocarbon group which may contain an ether linkage, or the following group (a) or (b)] and a recording material containing at least one of them. This recording material is excellent in the storage stability of colored images.
通式(I)的二苯砜交联型化合物[其中 X 和 Y 分别独立地为线性或支链饱和或不饱和 C1-C12 烃基,可含有醚键,或以下基团(a)或(b)]以及至少含有其中一种的记录材料。 这种记录材料在彩色图像的存储稳定性方面表现出色。