GB1301801A - - Google Patents
Info
- Publication number
- GB1301801A GB1301801A GB1264171*[A GB1264171A GB1301801A GB 1301801 A GB1301801 A GB 1301801A GB 1264171 A GB1264171 A GB 1264171A GB 1301801 A GB1301801 A GB 1301801A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treatment
- microcapsules
- gelatin
- walls
- treating
- 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
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
- B01J13/206—Hardening; drying
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Medicinal Preparation (AREA)
Abstract
1301801 Treating microcapsules NATIONAL CASH REGISTER CO. 3 May 1971 [14 May 1970] 12641/71 Heading B8C Microcapsules having walls comprising organic polymer material and made by any of the conventional liquid/liquid phase separation techniques, are rendered more hydrophobic by treatment with an organosilicon compound having groups reactive with the polymer material. Treatment may be carried out on the finished microcapsules or may be incorporated into the manufacturing process. The method is particularly useful for treating microcapsules which have been subjected to a treatment with components of a condensation polymer which is formed in the interstices of the capsule walls to render them less permeable. In this case, the treatment may be combined with the step of forming the condensation polymer. Examples of suitable capsule wall material are: gelatin, gelatin/gum arabic, succinylated gelatin, carrageenan, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid, hydrolysed copolymers of methyl vinyl ether or ethylene and maleic anhydride, melamine - formaldehyde resins, starch, zein and polyethylene oxide. Suitable organosilicon compounds are: γ-glycidoxypropyltrimethoxy silane; N - (trimethoxysilylpropyl)-ethylene diamine and silanes containing epoxy, amino and vinyl groups.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3734570A | 1970-05-14 | 1970-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1301801A true GB1301801A (en) | 1973-01-04 |
Family
ID=21893842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1264171*[A Expired GB1301801A (en) | 1970-05-14 | 1971-05-03 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE767141A (en) |
| CA (1) | CA918514A (en) |
| CH (1) | CH566169A5 (en) |
| DE (1) | DE2123861A1 (en) |
| FR (1) | FR2091482A5 (en) |
| GB (1) | GB1301801A (en) |
| ZA (1) | ZA712853B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5726456A (en) * | 1995-02-17 | 1998-03-10 | Gel Sciences, Inc. | Encapsulated materials |
| US5849412A (en) * | 1995-02-17 | 1998-12-15 | Medlogic Global Corporation | Encapsulated materials |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0934773B1 (en) * | 1998-02-06 | 2004-02-04 | Seiwa Kasei Co., Ltd. | Microcapsule having a specific wall and method for producing the same |
| FR2879945B1 (en) | 2004-12-29 | 2007-03-23 | Euracli Sarl | IMPROVED COASTING PROCESS FOR THE PREPARATION OF MICROCAPSULES OF HYDROPHOBIC ACTIVATED PRINCIPLES ISOLATED, FILTERABLE AND REDISPERSABLE IN WATER |
-
1971
- 1971-03-16 CA CA107921A patent/CA918514A/en not_active Expired
- 1971-05-03 GB GB1264171*[A patent/GB1301801A/en not_active Expired
- 1971-05-03 ZA ZA712853A patent/ZA712853B/en unknown
- 1971-05-12 FR FR7117084A patent/FR2091482A5/fr not_active Expired
- 1971-05-13 DE DE19712123861 patent/DE2123861A1/de active Pending
- 1971-05-13 BE BE767141A patent/BE767141A/en unknown
- 1971-05-14 CH CH711271A patent/CH566169A5/xx not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5726456A (en) * | 1995-02-17 | 1998-03-10 | Gel Sciences, Inc. | Encapsulated materials |
| US5789494A (en) * | 1995-02-17 | 1998-08-04 | Medlogic Global Corporation | Encapsulated materials |
| US5849412A (en) * | 1995-02-17 | 1998-12-15 | Medlogic Global Corporation | Encapsulated materials |
| US5932285A (en) * | 1995-02-17 | 1999-08-03 | Medlogic Global Corporation | Encapsulated materials |
| US6013698A (en) * | 1995-02-17 | 2000-01-11 | Medlogic Global Corporation | Encapsulated materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CA918514A (en) | 1973-01-09 |
| CH566169A5 (en) | 1975-09-15 |
| DE2123861A1 (en) | 1971-12-23 |
| FR2091482A5 (en) | 1972-01-14 |
| BE767141A (en) | 1971-10-01 |
| ZA712853B (en) | 1972-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |