JPS57116010A - Preparation of microcapsule - Google Patents
Preparation of microcapsuleInfo
- Publication number
- JPS57116010A JPS57116010A JP360081A JP360081A JPS57116010A JP S57116010 A JPS57116010 A JP S57116010A JP 360081 A JP360081 A JP 360081A JP 360081 A JP360081 A JP 360081A JP S57116010 A JPS57116010 A JP S57116010A
- Authority
- JP
- Japan
- Prior art keywords
- group
- alkyl
- molecule
- polyvinyl alcohol
- aqueous medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To obtain a capsule wall membrane having excellent characteristics, by the stable microencapsulation of a hydrophobic core substance in an aqueous medium with modified polyvinyl alcohol containing cationic groups in the molecule.
CONSTITUTION: A microcapsule is prepared by forming a resin wall on a hydrophobic core substance in an aqueous medium containing a modified polyvinyl alcohol (modified PVA) containing cationic groups in the molecule by the polycondensation reaction of pref. an amino compound with an aldehyde or by the use of a combination of two kinds of colloid substances having opposite electrical charges. When the modified PVA contains one of the copolymer units of formulaIWformula IV (B is NR4R5 or group of formula VII; A is group connecting N of B group to N of amide group; X- is anion R1WR9, R11 and R12 are H or alkyl; R7WR9 may be phenyl; R10 and R13 are alkyl; the alkyl of R6 or R10 may have substitutent group), naturally, it exhibits cationic activity, and can be cationized stably and easily in an industrial scale.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP360081A JPS57116010A (en) | 1981-01-12 | 1981-01-12 | Preparation of microcapsule |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP360081A JPS57116010A (en) | 1981-01-12 | 1981-01-12 | Preparation of microcapsule |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57116010A true JPS57116010A (en) | 1982-07-19 |
Family
ID=11561971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP360081A Pending JPS57116010A (en) | 1981-01-12 | 1981-01-12 | Preparation of microcapsule |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57116010A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6342329B1 (en) | 1998-01-16 | 2002-01-29 | Brother Kogyo Kabushiki Kaisha | Image-forming medium |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57110332A (en) * | 1980-12-13 | 1982-07-09 | Kanzaki Paper Mfg Co Ltd | Preparation of microcapsule |
-
1981
- 1981-01-12 JP JP360081A patent/JPS57116010A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57110332A (en) * | 1980-12-13 | 1982-07-09 | Kanzaki Paper Mfg Co Ltd | Preparation of microcapsule |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6342329B1 (en) | 1998-01-16 | 2002-01-29 | Brother Kogyo Kabushiki Kaisha | Image-forming medium |
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