ES485742A1 - Metodo de preparacion de una dispersion de microcapsulas - Google Patents
Metodo de preparacion de una dispersion de microcapsulasInfo
- Publication number
- ES485742A1 ES485742A1 ES485742A ES485742A ES485742A1 ES 485742 A1 ES485742 A1 ES 485742A1 ES 485742 A ES485742 A ES 485742A ES 485742 A ES485742 A ES 485742A ES 485742 A1 ES485742 A1 ES 485742A1
- Authority
- ES
- Spain
- Prior art keywords
- preparing
- microcapsule dispersion
- dispersion
- hydrogensulfite
- sulfite
- 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.)
- Expired
Links
- 239000006185 dispersion Substances 0.000 title abstract 3
- 239000003094 microcapsule Substances 0.000 title abstract 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 229940079826 hydrogen sulfite Drugs 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/20—After-treatment of capsule walls, e.g. hardening
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/914—Transfer or decalcomania
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
Un objeto de la presente invención consiste proporcionar un método mejorado para utilizar un agente de absorción de formalina libre aplicable a una dispersión conteniendo microcápsulas cuyas paredes están hechas de resina de condensación de amino- formaldehído. Otro objeto de la presente invención consiste en proporcionar un método capaz de eliminar la formalina libre sin reducir la estanqueidad de las paredes de las microcápsulas ni romperlas. Otro objeto de la presente invención consiste en proporcionar un método para reducir todavía más el contenido residual final de formalina libre sin perjudicar las paredes de las microcápsulas.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13696478A JPS5567328A (en) | 1978-11-07 | 1978-11-07 | Preparation of microcapsule dispersion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES485742A1 true ES485742A1 (es) | 1980-07-01 |
Family
ID=15187596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES485742A Expired ES485742A1 (es) | 1978-11-07 | 1979-11-06 | Metodo de preparacion de una dispersion de microcapsulas |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4297235A (es) |
| JP (1) | JPS5567328A (es) |
| ES (1) | ES485742A1 (es) |
| GB (1) | GB2037249B (es) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0232512B1 (en) * | 1985-12-13 | 1992-04-08 | E.I. Du Pont De Nemours And Company | Encapsulated pigment in silver halide wash-off film |
| US4798741A (en) * | 1985-12-13 | 1989-01-17 | E. I. Du Pont De Nemours And Company | Preparation of microencapsulated pigment |
| US20070138674A1 (en) * | 2005-12-15 | 2007-06-21 | Theodore James Anastasiou | Encapsulated active material with reduced formaldehyde potential |
| JP5485514B2 (ja) * | 2008-02-28 | 2014-05-07 | 三菱製紙株式会社 | マイクロカプセルの製造方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447945A (en) * | 1966-04-09 | 1969-06-03 | Fuji Photo Film Co Ltd | Process for the preparation of pressure-sensitive copying papers |
| US3576660A (en) * | 1968-07-11 | 1971-04-27 | Ncr Co | Pressure-sensitive record sheet and coating composition |
| US4001140A (en) * | 1974-07-10 | 1977-01-04 | Ncr Corporation | Capsule manufacture |
-
1978
- 1978-11-07 JP JP13696478A patent/JPS5567328A/ja active Granted
-
1979
- 1979-11-05 US US06/091,309 patent/US4297235A/en not_active Expired - Lifetime
- 1979-11-05 GB GB7938285A patent/GB2037249B/en not_active Expired
- 1979-11-06 ES ES485742A patent/ES485742A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4297235A (en) | 1981-10-27 |
| JPS5567328A (en) | 1980-05-21 |
| GB2037249A (en) | 1980-07-09 |
| JPS6119299B2 (es) | 1986-05-16 |
| GB2037249B (en) | 1983-05-11 |
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