Isocyanate composition, microcapsule and production method thereof, and recording material
申请人:Tamura Takashi
公开号:US20050153839A1
公开(公告)日:2005-07-14
The present invention provides an isocyanate composition including an adduct of a multifunctional isocyanate compound having two or more isocyanate groups in the molecule thereof with a polymer obtained by radically polymerizing in the presence of a chain transfer agent having active hydrogen at least a vinyl monomer including a polymerizable compound having a polyether represented by the following Formula (I):
A
1
-(L-O)
n
-B
1
Formula (I)
wherein A
1
represents a group having an ethylenically unsaturated double bond; L represents an alkylene group; B
1
represents an alkyl group or an aryl group; and n is an average polymerization degree of the polyether and represents a number of 8 to 300.
Diazonium salt for thermosensitive recording medium
申请人:Oki Electric Industry Co., Ltd.
公开号:EP0816914A2
公开(公告)日:1998-01-07
A diazonium salt for a color-forming layer of a thermosensitive recording medium. This diazonium salt has the following formula (1) or (2)
wherein R is an alkyl group having two or more carbon atoms such as t-butyl or sec-butyl, and X- is selected from the group consisting of hexafluorophosphate ion PF6-, tetrafluoroborate ion BF4- and tetraphenylborate ion (C6H5)4B-.
where R1 and R2 are alkyl groups each having one or more carbon atoms, and X- is selected from the group consisting of hexafluorophosphate ion PF6-, tetrafluoroborate ion BF4- and tetraphenylborate ion (C6H5)4B-.
Disclosed is adhesive recording paper having an image-forming layer on one surface of a substrate, and having an adhesive layer and a stripping sheet in that order on the other surface thereof, wherein the ratio, Nmax/Nmin, of the maximum stripping force (Nmax) to the minimum stripping force (Nmin) needed for separating the stripping sheet from the adhesive layer at a service temperature is at most 3.5, preferably at most 2.0.
An emulsification apparatus (10) is used in a production apparatus (12) of microcapsules. The emulsification apparatus (10) is constituted with an outer cylinder (24) and an inner cylinder (26) coaxially arranged in a superposed manner, the outer cylinder (24) is fixed, and the inner cylinder (26) is rotated at a circumferential speed ω. A liquid being processed is fed into the gap (25) between the outer cylinder (24) and the inner cylinder (26), thus a shear force is exerted to the liquid being processed, and the liquid being processed is thereby emulsified. The relation between the magnitude d (mm) of the gap (25), the viscosity η (mPa·sec) of the liquid being processed and the circumferential speed ω (m/sec) of the inner cylinder is such that the circumferential speed ω is controlled so that any one of the following relations may be satisfied:
(1) When η ≤ 20, d ≤ 5/ω;
(2) When 20 < η ≤ 50, d ≤ 10/ω;
(3) When 50 < η ≤ 100, d ≤ 20/ω;
(4) When 100 < η.
一种乳化装置(10)用于微胶囊生产装置(12)。乳化装置(10)由同轴叠置的外筒(24)和内筒(26)构成,外筒(24)固定,内筒(26)以圆周速度ω旋转。被处理的液体被送入外圆筒 (24) 和内圆筒 (26) 之间的间隙 (25),从而对被处理的液体施加剪切力,被处理的液体因此被乳化。间隙 (25) 的大小 d (毫米)、被处理液体的粘度 η (毫帕-秒) 和内圆筒的圆周速度 ω (米/秒) 之间的关系是这样的:圆周速度 ω 受控,以便满足下列关系中的任何一种:
(1) 当 η ≤ 20 时,d ≤ 5/ω;
(2) 当 20 < η ≤ 50 时,d ≤ 10/ω;
(3) 当 50 < η ≤ 100 时,d ≤ 20/ω;
(4) 当 100 < η 时。
Heat-sensitive recording material
申请人:FUJI PHOTO FILM CO., LTD.
公开号:US20030008775A1
公开(公告)日:2003-01-09
A heat-sensitive recording material comprising a heat-sensitive recording layer and a protective layer on a support, wherein the protective layer contains an acetylene glycol represented by the following formula (1):
Formula (1)
1
Wherein; R
1
to R
4
respectively represents a hydrogen atom, a branched, straight-chain or cyclic unsubstituted or substituted alkyl group having 1 to 8 carbon atoms or an unsubstituted or substituted aryl group having 6 to 10 carbon atoms; R
5
to R
8
respectively represents a hydrogen atom or a methyl group; and n and m independently denotes an integer from 0 to 50.
一种热敏记录材料,包括热敏记录层和支撑体上的保护层,其中保护层含有由下式(1)表示的乙二醇:
式(1)
1
其中
1
至 R
4
分别代表氢原子、具有 1 至 8 个碳原子的支链、直链或环状未取代或取代 的烷基或具有 6 至 10 个碳原子的未取代或取代的芳基; R 5
5
至 R
8
分别代表氢原子或甲基;n 和 m 独立地表示 0 至 50 的整数。