GB1299746A - Controlled release capsules - Google Patents
Controlled release capsulesInfo
- Publication number
- GB1299746A GB1299746A GB08781/70A GB1878170A GB1299746A GB 1299746 A GB1299746 A GB 1299746A GB 08781/70 A GB08781/70 A GB 08781/70A GB 1878170 A GB1878170 A GB 1878170A GB 1299746 A GB1299746 A GB 1299746A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- resin
- april
- indene
- encapsulating material
- 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
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Fertilizers (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Glanulating (AREA)
Abstract
1299746 Encapsulated materials MINNESOTA MINING & MFG CO 20 April 1970 [21 April 1969 8 May 1969] 18781/70 Heading ASE [Also in Divisions B8 and Cl] Capsules containing a liquid which is slowly released over a long period are made by encapsulating the liquid in a mantle composed of crystalline polyolefine and a compatible hydrocarbon resin, e.g. a petroleum resin, terpene resin or an indene or coumarone-indene resin. Optionally, a hydrocarbon wax, desirably of M.W. in the range 300 to 1500, may also be present. The liquid may in particular be a fertilizer or herbicide, those specifically mentioned being 2,4-dichloro-phenoxy acetic acid and trichloroacetic acid salts, 1,1'-ethylene- 2,2'-dipyridinium bromide (Diquat) and a fertilizer mixture comprising KCI, urea and NH 4 H 2 PO 4 . The capsules may be prepared by conventional methods, e.g. by subdividing a biliquid column, the outer portion of which is liquid encapsulating material, the inner portion being the liquid to be encapsulated and solidifying the encapsulating material.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81810869A | 1969-04-21 | 1969-04-21 | |
US82316469A | 1969-05-08 | 1969-05-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1299746A true GB1299746A (en) | 1972-12-13 |
Family
ID=27124230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08781/70A Expired GB1299746A (en) | 1969-04-21 | 1970-04-20 | Controlled release capsules |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4925467B1 (en) |
BE (1) | BE749195A (en) |
CH (1) | CH537152A (en) |
DE (1) | DE2019724B2 (en) |
FR (1) | FR2039322B1 (en) |
GB (1) | GB1299746A (en) |
IL (1) | IL34160A (en) |
NL (1) | NL7005171A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4198782A (en) | 1976-09-10 | 1980-04-22 | Herculite Protective Fabrics Corporation | Control of agricultural pests by controlled release particles |
CN112592244A (en) * | 2020-12-18 | 2021-04-02 | 大同市农产品质量安全检验检测中心 | Vegetable organic fertilizer and preparation method thereof |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5746893B2 (en) * | 1973-01-30 | 1982-10-06 | ||
US3948263A (en) * | 1974-08-14 | 1976-04-06 | Minnesota Mining And Manufacturing Company | Ballistic animal implant |
DE19603453C1 (en) * | 1996-01-31 | 1997-10-02 | Fraunhofer Ges Forschung | Microparticles containing an active ingredient and a polymeric capsule wall material, a process for their production and their use |
JPWO2015141262A1 (en) * | 2014-03-18 | 2017-04-06 | コニカミノルタ株式会社 | Fertilizer particles and method for producing the same |
JP2015229600A (en) * | 2014-06-03 | 2015-12-21 | コニカミノルタ株式会社 | Fertilizer particle and production method thereof |
JP2015229601A (en) * | 2014-06-03 | 2015-12-21 | コニカミノルタ株式会社 | Fertilizer particle and production method thereof |
JP2016003169A (en) * | 2014-06-18 | 2016-01-12 | コニカミノルタ株式会社 | Fertilizer particle |
-
1970
- 1970-03-25 IL IL34160A patent/IL34160A/en unknown
- 1970-04-10 NL NL7005171A patent/NL7005171A/xx not_active Application Discontinuation
- 1970-04-17 CH CH578470A patent/CH537152A/en not_active IP Right Cessation
- 1970-04-20 FR FR7014183A patent/FR2039322B1/fr not_active Expired
- 1970-04-20 DE DE2019724A patent/DE2019724B2/en not_active Withdrawn
- 1970-04-20 GB GB08781/70A patent/GB1299746A/en not_active Expired
- 1970-04-20 JP JP45033747A patent/JPS4925467B1/ja active Pending
- 1970-04-20 BE BE749195D patent/BE749195A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4198782A (en) | 1976-09-10 | 1980-04-22 | Herculite Protective Fabrics Corporation | Control of agricultural pests by controlled release particles |
CN112592244A (en) * | 2020-12-18 | 2021-04-02 | 大同市农产品质量安全检验检测中心 | Vegetable organic fertilizer and preparation method thereof |
CN112592244B (en) * | 2020-12-18 | 2022-11-25 | 大同市农产品质量安全检验检测中心 | Vegetable organic fertilizer and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS4925467B1 (en) | 1974-07-01 |
IL34160A (en) | 1973-04-30 |
NL7005171A (en) | 1970-10-23 |
CH537152A (en) | 1973-05-31 |
BE749195A (en) | 1970-10-20 |
FR2039322A1 (en) | 1971-01-15 |
DE2019724A1 (en) | 1970-11-05 |
DE2019724B2 (en) | 1979-03-15 |
IL34160A0 (en) | 1970-05-21 |
FR2039322B1 (en) | 1975-06-06 |
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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 |