FR2251366A1 - Encapsulation of water-immiscible substances - using polymeric polyfunctional cpd and polyacrolein cpd - Google Patents

Encapsulation of water-immiscible substances - using polymeric polyfunctional cpd and polyacrolein cpd

Info

Publication number
FR2251366A1
FR2251366A1 FR7437692A FR7437692A FR2251366A1 FR 2251366 A1 FR2251366 A1 FR 2251366A1 FR 7437692 A FR7437692 A FR 7437692A FR 7437692 A FR7437692 A FR 7437692A FR 2251366 A1 FR2251366 A1 FR 2251366A1
Authority
FR
France
Prior art keywords
cpd
water
polyacrolein
encapsulation
immiscible substances
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.)
Granted
Application number
FR7437692A
Other languages
French (fr)
Other versions
FR2251366B1 (en
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of FR2251366A1 publication Critical patent/FR2251366A1/en
Application granted granted Critical
Publication of FR2251366B1 publication Critical patent/FR2251366B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
    • 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
    • B01J13/18—In situ polymerisation with all reactants being present in the same phase

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Coloring (AREA)
  • Cosmetics (AREA)
  • Adhesive Tapes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Medicinal Preparation (AREA)
  • Color Printing (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

Method for the encapsulation of water-immiscible substances comprises dispersing the encapsulable substance in a dispersion medium in the presence of (a) a water-soluble, surface active, polymeric, polyfunctional cpd. which contains prim. amino, imino, hydroxy and/or thiol gps. and reacting component (a) of this dispersion with (b) and aqs. soln. of a hydrate or bisulphite adduct of a polyacrolein or acrolein copolymer capable of forming an insol. cpd. in the dispersion medium and (c) opt. additionally with a hardening agent or aminoplast precondensate, with the formation of an insoluble capsule matl. The capsules obtd. can be dispersed in a liq. pressed into tablets or used as surface coatings e.g. for forming heat- and pressure-sensitive copying paper.
FR7437692A 1973-11-16 1974-11-15 Encapsulation of water-immiscible substances - using polymeric polyfunctional cpd and polyacrolein cpd Granted FR2251366A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1617573 1973-11-16

Publications (2)

Publication Number Publication Date
FR2251366A1 true FR2251366A1 (en) 1975-06-13
FR2251366B1 FR2251366B1 (en) 1976-10-22

Family

ID=4415039

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7437692A Granted FR2251366A1 (en) 1973-11-16 1974-11-15 Encapsulation of water-immiscible substances - using polymeric polyfunctional cpd and polyacrolein cpd

Country Status (7)

Country Link
JP (1) JPS5080976A (en)
AU (1) AU7535574A (en)
BE (1) BE822268A (en)
BR (1) BR7409564A (en)
DE (1) DE2453852A1 (en)
FR (1) FR2251366A1 (en)
ZA (1) ZA747326B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093668A1 (en) * 1982-05-04 1983-11-09 Etablissement Public dit: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) Microcapsules having a wall of reticulately bound milk proteins, and method for their preparation
GR900100217A (en) * 1989-03-24 1990-07-31 Nehezvegyipari Kutato Intezet Method for producing ecologic capsule of natural origin for products with controlled release of the active ingredient

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973510A (en) * 1982-10-19 1984-04-25 Pola Chem Ind Inc Cosmetic
US4904524A (en) * 1988-10-18 1990-02-27 Scott Paper Company Wet wipes
JP2553477B2 (en) * 1989-08-11 1996-11-13 鐘紡株式会社 Aromatic bedding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093668A1 (en) * 1982-05-04 1983-11-09 Etablissement Public dit: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) Microcapsules having a wall of reticulately bound milk proteins, and method for their preparation
FR2526328A1 (en) * 1982-05-04 1983-11-10 Centre Nat Rech Scient WALL MICROCAPSULES OBTAINED BY CROSSLINKING MILK PROTEINS, AND PROCESS FOR THE PREPARATION THEREOF
GR900100217A (en) * 1989-03-24 1990-07-31 Nehezvegyipari Kutato Intezet Method for producing ecologic capsule of natural origin for products with controlled release of the active ingredient

Also Published As

Publication number Publication date
JPS5080976A (en) 1975-07-01
AU7535574A (en) 1976-05-20
ZA747326B (en) 1975-11-26
BE822268A (en) 1975-05-20
BR7409564A (en) 1976-05-25
DE2453852A1 (en) 1975-05-28
FR2251366B1 (en) 1976-10-22

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Legal Events

Date Code Title Description
ST Notification of lapse