GB1310715A - Encapsulation process - Google Patents
Encapsulation processInfo
- Publication number
- GB1310715A GB1310715A GB1582870A GB1582870A GB1310715A GB 1310715 A GB1310715 A GB 1310715A GB 1582870 A GB1582870 A GB 1582870A GB 1582870 A GB1582870 A GB 1582870A GB 1310715 A GB1310715 A GB 1310715A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer
- solid
- solution
- liquid
- april
- 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
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/08—Simple coacervation, i.e. addition of highly hydrophilic material
-
- 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
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
- B01J13/16—Interfacial polymerisation
-
- 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
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Glanulating (AREA)
Abstract
1310715 Encapsulation process BAYER AG 3 April 1970 [5 April 1969] 15828/70 Heading B8C [Also in Division A5] Solids and liquids are coated or encapsulated by dispersing them in an aqueous solution of a polymer which contains carboxyl or carboxylate groups and dispersing the solution or dispersion thus formed in an aqueous solution of an aluminium salt whereby the polymer is caused to harden, giving generally spherical particles of hardened polymer in which are embedded the solid or liquid particles. The encapsulated material may be a solid, a liquid or a solution of a solid in a water-immiscible liquid. Specific examples relate to the encapsulation of polybutene oil, aspirin and prontosil S. The polymer may be carboxymethyl cellulose, an alginate or pectin or a synthetic polymer such as copolymers of maleic anhydride with ethylene, isobutylene, styrene or vinyl ethers which have been at least partly converted to the carboxyl or carboxylate form, homopolymers of acrylic and methacrylic acids and copolymers thereof.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1917738A DE1917738B2 (en) | 1969-04-05 | 1969-04-05 | Process for embedding or enveloping solid or liquid substances |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1310715A true GB1310715A (en) | 1973-03-21 |
Family
ID=5730557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1582870A Expired GB1310715A (en) | 1969-04-05 | 1970-04-03 | Encapsulation process |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS4823258B1 (en) |
AT (1) | AT294777B (en) |
AU (1) | AU1332970A (en) |
BE (1) | BE748480A (en) |
CA (1) | CA928588A (en) |
DE (1) | DE1917738B2 (en) |
ES (1) | ES378246A1 (en) |
FR (1) | FR2042927A5 (en) |
GB (1) | GB1310715A (en) |
IL (1) | IL34146A0 (en) |
IT (1) | IT1040510B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493701A1 (en) * | 1980-11-10 | 1982-05-14 | Damon Corp | PROCESS FOR ENCAPSULATING OILS AND LIPOSOLUBLE SUBSTANCES, SUCH AS VITAMINS, AND MICROCAPSULES OBTAINED |
US7994110B2 (en) | 2005-05-03 | 2011-08-09 | Evonik Degussa Gmbh | Solid redispersible emulsion |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2420994A1 (en) * | 1978-03-30 | 1979-10-26 | Pentel Kk | MICROCAPSULES HAVING A MINERAL WALL AND PROCESS FOR THEIR PREPARATION |
JPS5929933A (en) * | 1982-08-10 | 1984-02-17 | Kajima Corp | Air conditioning apparatus |
US4663286A (en) * | 1984-02-13 | 1987-05-05 | Damon Biotech, Inc. | Encapsulation of materials |
WO1997002019A1 (en) | 1995-06-30 | 1997-01-23 | Baylor University | Polyester/carboxylic acid composite materials |
-
1969
- 1969-04-05 DE DE1917738A patent/DE1917738B2/en not_active Withdrawn
-
1970
- 1970-03-24 IL IL34146A patent/IL34146A0/en unknown
- 1970-04-01 CA CA078810A patent/CA928588A/en not_active Expired
- 1970-04-02 AU AU13329/70A patent/AU1332970A/en not_active Expired
- 1970-04-03 FR FR7012212A patent/FR2042927A5/fr not_active Expired
- 1970-04-03 AT AT307470A patent/AT294777B/en not_active IP Right Cessation
- 1970-04-03 IT IT49732/70A patent/IT1040510B/en active
- 1970-04-03 BE BE748480D patent/BE748480A/xx unknown
- 1970-04-03 GB GB1582870A patent/GB1310715A/en not_active Expired
- 1970-04-04 JP JP45028308A patent/JPS4823258B1/ja active Pending
- 1970-04-04 ES ES378246A patent/ES378246A1/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493701A1 (en) * | 1980-11-10 | 1982-05-14 | Damon Corp | PROCESS FOR ENCAPSULATING OILS AND LIPOSOLUBLE SUBSTANCES, SUCH AS VITAMINS, AND MICROCAPSULES OBTAINED |
US4389419A (en) * | 1980-11-10 | 1983-06-21 | Damon Corporation | Vitamin encapsulation |
US7994110B2 (en) | 2005-05-03 | 2011-08-09 | Evonik Degussa Gmbh | Solid redispersible emulsion |
Also Published As
Publication number | Publication date |
---|---|
AT294777B (en) | 1971-12-10 |
IT1040510B (en) | 1979-12-20 |
CA928588A (en) | 1973-06-19 |
DE1917738B2 (en) | 1980-06-26 |
ES378246A1 (en) | 1972-05-16 |
BE748480A (en) | 1970-09-16 |
FR2042927A5 (en) | 1971-02-12 |
DE1917738A1 (en) | 1970-10-08 |
AU1332970A (en) | 1971-10-07 |
IL34146A0 (en) | 1970-05-21 |
JPS4823258B1 (en) | 1973-07-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |