GB1221489A - Improvements in microencapsulation process and products - Google Patents

Improvements in microencapsulation process and products

Info

Publication number
GB1221489A
GB1221489A GB3726068A GB3726068A GB1221489A GB 1221489 A GB1221489 A GB 1221489A GB 3726068 A GB3726068 A GB 3726068A GB 3726068 A GB3726068 A GB 3726068A GB 1221489 A GB1221489 A GB 1221489A
Authority
GB
United Kingdom
Prior art keywords
resin
methyl
oil
water
dye
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
GB3726068A
Inventor
Anthony Epaminonda Vassiliades
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.)
CHAMPION PAPER CO Ltd
Original Assignee
CHAMPION PAPER CO Ltd
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
Priority to US503391A priority Critical patent/US3418656A/en
Priority to FR1571090D priority patent/FR1571090A/fr
Priority to FR1571089D priority patent/FR1571089A/fr
Priority to BE717135D priority patent/BE717135A/xx
Priority to FR1583243D priority patent/FR1583243A/fr
Priority to BE717133D priority patent/BE717133A/xx
Priority to BE717134D priority patent/BE717134A/xx
Priority to NL6811089A priority patent/NL6811089A/xx
Application filed by CHAMPION PAPER CO Ltd filed Critical CHAMPION PAPER CO Ltd
Priority to NL6811090A priority patent/NL6811090A/xx
Priority to GB3725968A priority patent/GB1222016A/en
Priority to NL6811091A priority patent/NL6811091A/xx
Priority to GB3726068A priority patent/GB1221489A/en
Priority to GB3726168A priority patent/GB1221571A/en
Priority to DE19681769932 priority patent/DE1769932A1/en
Priority to DE19681769928 priority patent/DE1769928A1/en
Priority to DE19681769933 priority patent/DE1769933A1/en
Publication of GB1221489A publication Critical patent/GB1221489A/en
Expired legal-status Critical Current

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
    • B01J13/12—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Color Printing (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Medicinal Preparation (AREA)

Abstract

1,221,489. Pressure-sensitive copying sheets. CHAMPION PAPER CO. Ltd. 5 Aug., 1968, No. 37260/68. Heading D2B. [Also in Division B8] Transfer sheet materials are produced by coating paper or similar sheet material with an aqueous suspension of a microencapsulated oily printing ink emulsion, particularly colourless lenco dye intermediates, which has been prepared by mixing the oil, an emulsifying agent, water and (1) a solution of a hydrophobic thermoplastic resin in an oil- and watermiscible solvent from which the resin precipitates on dilution with water or (2) an aqueous solution of a partially condensed thermosetting resin from which the resin precipitates on dilution, so that resin separates in solid form about a nucleus of oil-in-water emulsion. Suitable resins are (1) polyvinyl chloride, polystyrene, polyvinylacetate, vinyl chloride - vinylidene chloride copolymers, cellulose acetate, ethyl cellulose or novolak resin dissolved in tetrahydrofuran, dioxane, cyclohexanone, methyl tetrahydrofuran, methyl isobutyl ketone or acetone or (2) are formaldehyde condensates of phenols, carboamides, triazines, amines and amides, ketones, aromatic hydrocarbons or heterocyclics, particularly melamine, phenol or urea. Where both types of resin are used they may be added in either order to produce two encapsulating walls. The emulsifier is gum arabic or tragacanth, azo, gelatin, starch, methyl cellulose, polyvinyl pyrrolidone or methyl vinyl ether-maleic anhydride copolymer. Stabilisers may also be incorporated; dibasic lead phosphite or stearate, tribasic lead sulphate monohydrate, or dibutyl tin maleate in the case of the thermoplastic resin and zinc stearate or dibasic lead stearate for the thermosetting resin. The inks to be encapsulated are dissolved in oils, e.g. cottonseed, castor, soybean, petrolium lubricating, fish liver, drying or essential oils, methyl salicylate, halogenated biphenyls or low melting fats or waxes, e.g. lard, sperm oil or lanolin; an inhibitor, e.g. N- pihenyl 2-naphthylamine may be included, and a buffer material is preferably added to maintain the aqueous phase alkaline. Dispersions of the microencapsulated colourless inks in water with a binder material are applied to one side of paper to form a transfer sheet. The copy sheet is an adsorbent, acidic electron-acceptor material so that when dye from the transfer sheet is applied by rupture of the capsules by pressure, the dye is converted to a visible form.
GB3726068A 1965-10-23 1968-08-05 Improvements in microencapsulation process and products Expired GB1221489A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
US503391A US3418656A (en) 1965-10-23 1965-10-23 Microcapsules, process for their formation and transfer sheet record material coated therewith
FR1571089D FR1571089A (en) 1968-08-05 1968-06-25
BE717135D BE717135A (en) 1968-08-05 1968-06-25
FR1583243D FR1583243A (en) 1968-08-05 1968-06-25
BE717133D BE717133A (en) 1968-08-05 1968-06-25
BE717134D BE717134A (en) 1968-08-05 1968-06-25
FR1571090D FR1571090A (en) 1968-08-05 1968-06-25
NL6811089A NL6811089A (en) 1968-08-05 1968-08-05
NL6811090A NL6811090A (en) 1968-08-05 1968-08-05
GB3725968A GB1222016A (en) 1968-08-05 1968-08-05 Improvements in microencapsulation process and products
NL6811091A NL6811091A (en) 1968-08-05 1968-08-05
GB3726068A GB1221489A (en) 1968-08-05 1968-08-05 Improvements in microencapsulation process and products
GB3726168A GB1221571A (en) 1968-08-05 1968-08-05 Improvements in microencapsulated process and products
DE19681769932 DE1769932A1 (en) 1968-08-05 1968-08-07 Microcapsules and processes for their manufacture
DE19681769928 DE1769928A1 (en) 1968-08-05 1968-08-07 Oil-containing microcapsules and process for their production
DE19681769933 DE1769933A1 (en) 1968-08-05 1968-08-07 Oil-containing microcapsules and process for their production

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB3726168A GB1221571A (en) 1968-08-05 1968-08-05 Improvements in microencapsulated process and products
GB3725968A GB1222016A (en) 1968-08-05 1968-08-05 Improvements in microencapsulation process and products
GB3726068A GB1221489A (en) 1968-08-05 1968-08-05 Improvements in microencapsulation process and products

Publications (1)

Publication Number Publication Date
GB1221489A true GB1221489A (en) 1971-02-03

Family

ID=27259425

Family Applications (3)

Application Number Title Priority Date Filing Date
GB3726068A Expired GB1221489A (en) 1965-10-23 1968-08-05 Improvements in microencapsulation process and products
GB3726168A Expired GB1221571A (en) 1965-10-23 1968-08-05 Improvements in microencapsulated process and products
GB3725968A Expired GB1222016A (en) 1965-10-23 1968-08-05 Improvements in microencapsulation process and products

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB3726168A Expired GB1221571A (en) 1965-10-23 1968-08-05 Improvements in microencapsulated process and products
GB3725968A Expired GB1222016A (en) 1965-10-23 1968-08-05 Improvements in microencapsulation process and products

Country Status (5)

Country Link
BE (3) BE717133A (en)
DE (3) DE1769933A1 (en)
FR (3) FR1571090A (en)
GB (3) GB1221489A (en)
NL (3) NL6811090A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082270A1 (en) * 1981-12-22 1983-06-29 International Business Machines Corporation Ribbon for non-impact thermal transfer printing and manufacturing method thereof
US4406816A (en) * 1979-10-08 1983-09-27 Basf Aktiengesellschaft Process for the preparation of microcapsules, and the microcapsules obtained thereby
US5476829A (en) * 1993-07-03 1995-12-19 The Wiggins Teape Group Limited Pressure-sensitive copying material
US5605874A (en) * 1994-07-20 1997-02-25 The Wiggins Teape Group Limited Pressure-sensitive copying material
EP2740532A1 (en) * 2012-12-06 2014-06-11 Zachodniopomorski Uniwersytet Technologiczny w Szczecinie Method of producing a starch-containing material

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012554A (en) * 1972-12-15 1977-03-15 Ncr Corporation Single coating record system-solvent loss produces color
US4001140A (en) * 1974-07-10 1977-01-04 Ncr Corporation Capsule manufacture
CA1084783A (en) * 1976-05-25 1980-09-02 Pennwalt Corporation Process for encapsulation by interfacial polymerization
US4100103A (en) * 1976-12-30 1978-07-11 Ncr Corporation Capsule manufacture
US4439488A (en) * 1982-02-26 1984-03-27 The United States Of America As Represented By The Secretary Of Agriculture Encapsulation by entrapment within polyhydroxy polymer borates
US4440746A (en) * 1982-10-28 1984-04-03 Pennwalt Corporation Granular pesticide composition
JPS59166966A (en) * 1983-03-14 1984-09-20 Fuji Photo Film Co Ltd Production of capsule toner
FR2608942B1 (en) * 1986-12-31 1991-01-11 Centre Nat Rech Scient PROCESS FOR THE PREPARATION OF COLLOIDAL DISPERSIBLE SYSTEMS OF A SUBSTANCE, IN THE FORM OF NANOCAPSULES
IT1224642B (en) * 1987-11-26 1990-10-18 Eurand Spa PROCEDURE FOR MICRO-ENCAPSULATION OF LOW-BASED SOLID SUBSTANCES.
FR2727633A1 (en) * 1994-12-02 1996-06-07 Copigraph MICROCAPSULES CONTAINING AS A SOLVENT A TERPENIC DERIVATIVE OR ABIETIC ACID AND PRESSURE-SENSITIVE PAPERS COATED WITH SUCH MICROCAPSULES
FR2910286B1 (en) 2006-12-20 2009-04-17 Oreal COMPOSITION COMPRISING ENCAPSULATED SILICONE COMPOUNDS
EP2510930A1 (en) 2011-04-15 2012-10-17 Bionanoplus, S.L. Nanoparticles comprising half esters of poly (methyl vinyl ether-co-maleic anhydride) and uses thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406816A (en) * 1979-10-08 1983-09-27 Basf Aktiengesellschaft Process for the preparation of microcapsules, and the microcapsules obtained thereby
EP0082270A1 (en) * 1981-12-22 1983-06-29 International Business Machines Corporation Ribbon for non-impact thermal transfer printing and manufacturing method thereof
US4421429A (en) * 1981-12-22 1983-12-20 International Business Machines Corporation Resistive substrate for thermal printing ribbons comprising a mixture of thermosetting polyimide, thermoplastic polyimide, and conductive particulate material
US5476829A (en) * 1993-07-03 1995-12-19 The Wiggins Teape Group Limited Pressure-sensitive copying material
US5605874A (en) * 1994-07-20 1997-02-25 The Wiggins Teape Group Limited Pressure-sensitive copying material
EP2740532A1 (en) * 2012-12-06 2014-06-11 Zachodniopomorski Uniwersytet Technologiczny w Szczecinie Method of producing a starch-containing material

Also Published As

Publication number Publication date
BE717134A (en) 1968-12-27
DE1769932A1 (en) 1970-07-30
NL6811091A (en) 1970-02-09
NL6811090A (en) 1970-02-09
FR1571089A (en) 1969-06-13
NL6811089A (en) 1970-02-09
BE717133A (en) 1968-12-27
BE717135A (en) 1968-12-27
DE1769933A1 (en) 1972-05-18
GB1221571A (en) 1971-02-03
FR1583243A (en) 1969-10-24
DE1769928A1 (en) 1970-07-30
GB1222016A (en) 1971-02-10
FR1571090A (en) 1969-06-13

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