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 thereof

Info

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
Application number
GB4013267A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB1142556A publication Critical patent/GB1142556A/en
Expired legal-status Critical Current

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.
GB4013267A 1966-09-26 1967-09-01 A minute, rupturable polymer capsule and a process for the preparation thereof Expired GB1142556A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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