GB1142556A - A minute, rupturable polymer capsule and a process for the preparation thereof - Google Patents
A minute, rupturable polymer capsule and a process for the preparation thereofInfo
- Publication number
- GB1142556A GB1142556A GB4013267A GB4013267A GB1142556A GB 1142556 A GB1142556 A GB 1142556A GB 4013267 A GB4013267 A GB 4013267A GB 4013267 A GB4013267 A GB 4013267A GB 1142556 A GB1142556 A GB 1142556A
- Authority
- GB
- United Kingdom
- Prior art keywords
- microcapsules
- basic material
- diisocyanate
- sept
- toluene
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/42—Structural details
- G03C8/426—Structures with microcapsules
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0838—Manufacture of polymers in the presence of non-reactive compounds
- C08G18/0842—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
1,142,556. Microcapsules. NATIONAL CASH REGISTER CO. 1 Sept., 1967 [26 Sept., 1966], No. 40132/67. Heading B8C. [Also in Division C3] Microcapsules composed of a polyurethane mantle enclosing an aqueous solution of a chemically basic material are made by an interfacial polymerization technique whereby an aqueous solution of a basic material, e.g. an amine and optionally NaOH or KOH, is dispersed in an agitated water-immiscible liquid e.g. toluene, xylene, ethyl acetate or trichlorodiphenyl, containing, or to which is subsequently added, a diisocyanate-terminated poly(alkylene glycol) and agitation is continued until the droplets of aqueous material are encapsulated by a polymer formed by a polymerization reaction between the diisocyanate and the basic material. The microcapsules may be further treated, e.g. by contacting with a 1% w./w. solution in toluene of 1-hydroxyethyl. 2-heptodecenyl glyoxalidine to prevent agglomeration during drying. Reference has been directed by the Comptroller to Specifications 1,091,076 and 1,950,443.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58170466A | 1966-09-26 | 1966-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1142556A true GB1142556A (en) | 1969-02-12 |
Family
ID=24326243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4013267A Expired GB1142556A (en) | 1966-09-26 | 1967-09-01 | A minute, rupturable polymer capsule and a process for the preparation thereof |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1548647A (en) |
GB (1) | GB1142556A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113329811A (en) * | 2019-05-21 | 2021-08-31 | 弗门尼舍有限公司 | Poly (ester urea) microcapsules |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5225118A (en) * | 1990-08-15 | 1993-07-06 | Boise Cascade Corporation | Process for manufacturing polyurea microcapsules and product therefrom |
-
1967
- 1967-09-01 GB GB4013267A patent/GB1142556A/en not_active Expired
- 1967-09-25 FR FR1548647D patent/FR1548647A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113329811A (en) * | 2019-05-21 | 2021-08-31 | 弗门尼舍有限公司 | Poly (ester urea) microcapsules |
Also Published As
Publication number | Publication date |
---|---|
FR1548647A (en) | 1968-12-06 |
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