GB1478788A - Microencapsulation process - Google Patents

Microencapsulation process

Info

Publication number
GB1478788A
GB1478788A GB1464275A GB1464275A GB1478788A GB 1478788 A GB1478788 A GB 1478788A GB 1464275 A GB1464275 A GB 1464275A GB 1464275 A GB1464275 A GB 1464275A GB 1478788 A GB1478788 A GB 1478788A
Authority
GB
United Kingdom
Prior art keywords
group
hydrogen atom
acrylamide
formula
acrylic acid
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
GB1464275A
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1478788A publication Critical patent/GB1478788A/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
    • B01J13/10—Complex coacervation, i.e. interaction of oppositely charged particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicinal Preparation (AREA)
  • Fats And Perfumes (AREA)
  • Color Printing (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Detergent Compositions (AREA)

Abstract

1478788 Microencapsulation FUJI PHOTO FILM CO Ltd 9 April 1975 [9 April 1974] 14642/75 Heading B8C In an encapsulation process for producing microcapsules by complex co-acervation, the material used for forming the microcapsule walls comprises 100 parts by weight of gelatin and from 5 to 200 parts by weight of a copolymer containing units derived from acrylic acid methacrylic acid or a salt thereof, the copolymer having an electric charge opposite that of gelatin. The copolymer contains at least one monomer represented by the formula I wherein R<SP>1</SP> represents a hydrogen atom or a methyl group and M represents a hydrogen atom or an atom or a group capable of forming a water-soluble salt of the monomer of formula I; and at least one monomer represented by the formula II wherein X represents a hydrogen atom, a methyl group of a -CH 2 COOR<SP>2</SP> group, R<SP>2</SP> being an aliphatic group; and Y represents a -COOR<SP>2</SP> group, a cyano group, an aryl group, an acyloxy group, a group, R<SP>3</SP> and R<SP>4</SP> each being separately a hydrogen atom, an acetyl group or an aliphatic group, or together form a nitrogen-containing heterocyclic ring, a -CONHCH 2 OR<SP>5</SP> group, or a group, R<SP>5</SP> being a hydrogen atom or an aliphatic group exemplified copolymers are of acrylic acid and acrylamide, methacrylic acid and acrylamide, acrylic acid and ethyl acrylate and butyl acrylate, acrylamide and methacrylic acid. A water soluble polymer such as polyvinyl alcohol, may also be present.
GB1464275A 1974-04-09 1975-04-09 Microencapsulation process Expired GB1478788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49040224A JPS5843137B2 (en) 1974-04-09 1974-04-09 capsule kahouhou

Publications (1)

Publication Number Publication Date
GB1478788A true GB1478788A (en) 1977-07-06

Family

ID=12574778

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1464275A Expired GB1478788A (en) 1974-04-09 1975-04-09 Microencapsulation process

Country Status (5)

Country Link
JP (1) JPS5843137B2 (en)
BE (1) BE827677A (en)
DE (1) DE2515176A1 (en)
ES (1) ES436349A1 (en)
GB (1) GB1478788A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612556A (en) * 1983-10-07 1986-09-16 The Wiggins Teape Group Limited Self-contained pressure sensitive copying material and its production
EP0626445A2 (en) * 1988-08-24 1994-11-30 Ciba Specialty Chemicals Water Treatments Limited Detergent compositions
EP0585295B1 (en) * 1989-08-24 1996-09-18 Ciba Specialty Chemicals Water Treatments Limited Polymeric compositions
EP1657299A1 (en) * 2004-11-12 2006-05-17 Cognis IP Management GmbH Microcapsules
US8927026B2 (en) 2011-04-07 2015-01-06 The Procter & Gamble Company Shampoo compositions with increased deposition of polyacrylate microcapsules
US8980292B2 (en) 2011-04-07 2015-03-17 The Procter & Gamble Company Conditioner compositions with increased deposition of polyacrylate microcapsules
US9162085B2 (en) 2011-04-07 2015-10-20 The Procter & Gamble Company Personal cleansing compositions with increased deposition of polyacrylate microcapsules
US9186642B2 (en) 2010-04-28 2015-11-17 The Procter & Gamble Company Delivery particle
US9993793B2 (en) 2010-04-28 2018-06-12 The Procter & Gamble Company Delivery particles
CN110741070A (en) * 2017-06-16 2020-01-31 可泰克斯公司 Phosphate-free polymeric detergent compositions

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55164283A (en) * 1979-06-08 1980-12-20 Nichia Kagaku Kogyo Kk Fluorescent substance with pigment and its preparation
DE3016170A1 (en) * 1980-04-26 1981-10-29 Bayer Ag, 5090 Leverkusen MICROCAPSULES WITH A DEFINED OPENING TEMPERATURE, METHOD FOR THE PRODUCTION AND USE THEREOF
DD160393A3 (en) * 1980-11-14 1983-07-27 Horst Dautzenberg MICRO CAPSULES AND METHOD FOR THE PRODUCTION THEREOF
US20050156340A1 (en) * 2004-01-20 2005-07-21 E Ink Corporation Preparation of capsules
US7790215B2 (en) * 2002-03-26 2010-09-07 Purdue Pharma Lp Sustained-release gel coated compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698794A (en) * 1950-04-15 1955-01-04 Eastman Kodak Co Mixed packet photographic emulsions
SE404195B (en) * 1973-05-16 1978-09-25 Ppg Industries Inc COATING COMPOSITION CONTAINING POLYURETHANE POLYOL, AMINOHARTS AND AMIN TERTIER, WHICH IMPROVES THE GLOSS
JPS5137273A (en) * 1974-09-26 1976-03-29 Diesel Kiki Co NINYURYOKUSHINGO BUNKATSUHIKAKUKAIRO

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612556A (en) * 1983-10-07 1986-09-16 The Wiggins Teape Group Limited Self-contained pressure sensitive copying material and its production
EP0626445A2 (en) * 1988-08-24 1994-11-30 Ciba Specialty Chemicals Water Treatments Limited Detergent compositions
EP0626445A3 (en) * 1988-08-24 1995-02-15 Allied Colloids Ltd Detergent compositions.
EP0585295B1 (en) * 1989-08-24 1996-09-18 Ciba Specialty Chemicals Water Treatments Limited Polymeric compositions
EP1657299A1 (en) * 2004-11-12 2006-05-17 Cognis IP Management GmbH Microcapsules
US9186642B2 (en) 2010-04-28 2015-11-17 The Procter & Gamble Company Delivery particle
US11096875B2 (en) 2010-04-28 2021-08-24 The Procter & Gamble Company Delivery particle
US9993793B2 (en) 2010-04-28 2018-06-12 The Procter & Gamble Company Delivery particles
US8980292B2 (en) 2011-04-07 2015-03-17 The Procter & Gamble Company Conditioner compositions with increased deposition of polyacrylate microcapsules
US9561169B2 (en) 2011-04-07 2017-02-07 The Procter & Gamble Company Conditioner compositions with increased deposition of polyacrylate microcapsules
US9162085B2 (en) 2011-04-07 2015-10-20 The Procter & Gamble Company Personal cleansing compositions with increased deposition of polyacrylate microcapsules
US10143632B2 (en) 2011-04-07 2018-12-04 The Procter And Gamble Company Shampoo compositions with increased deposition of polyacrylate microcapsules
US8927026B2 (en) 2011-04-07 2015-01-06 The Procter & Gamble Company Shampoo compositions with increased deposition of polyacrylate microcapsules
CN110741070A (en) * 2017-06-16 2020-01-31 可泰克斯公司 Phosphate-free polymeric detergent compositions

Also Published As

Publication number Publication date
DE2515176A1 (en) 1975-10-23
JPS50142476A (en) 1975-11-17
ES436349A1 (en) 1977-01-01
BE827677A (en) 1975-07-31
JPS5843137B2 (en) 1983-09-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee