JPS54104487A - Microcapsules and production thereof - Google Patents

Microcapsules and production thereof

Info

Publication number
JPS54104487A
JPS54104487A JP1184978A JP1184978A JPS54104487A JP S54104487 A JPS54104487 A JP S54104487A JP 1184978 A JP1184978 A JP 1184978A JP 1184978 A JP1184978 A JP 1184978A JP S54104487 A JPS54104487 A JP S54104487A
Authority
JP
Japan
Prior art keywords
microcapsules
polybutadiene
crystalline
degree
contacted
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
JP1184978A
Other languages
Japanese (ja)
Other versions
JPS5855813B2 (en
Inventor
Masahiro Iwata
Yuichi Ko
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.)
Pentel Co Ltd
Original Assignee
Pentel 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 Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP1184978A priority Critical patent/JPS5855813B2/en
Publication of JPS54104487A publication Critical patent/JPS54104487A/en
Publication of JPS5855813B2 publication Critical patent/JPS5855813B2/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
    • B01J13/14—Polymerisation; cross-linking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)

Abstract

PURPOSE:To obtain microcapsules with different breaking strengths over a wide range by covering an aq. liquid filler with envelopes made of high MW crystalline 1, 2-polybutadiene of syndiotactic structure (stereoregular structure). CONSTITUTION:An aq. liquid filler is contacted to a sprayed soln. of the above high MW crystalline 1,2-polybutadiene in a solvent such as cyclohexane. The filler may be, e.g. particles obtd. by gelling EG with very finely divided anhydrous silica and freeze pulverizing the gel at low temp. The contacted particles are then irradiated with light of wavelengths below 370 nm from a low voltage mercury lamp, etc. for a predetermined time to obtain desired microcapsules. The MW of the polybutadiene is above 10000, and the degree of crystallinity 5-60, esp. 10-30%. Only by varying the radiation time of light of wavelengths below 370 nm, degree of deterioration of microcapsules is changed by hardening due to the radiation, and the breaking strength of a membrane produced can be controlled freely.
JP1184978A 1978-02-04 1978-02-04 Microcapsules and their manufacturing method Expired JPS5855813B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1184978A JPS5855813B2 (en) 1978-02-04 1978-02-04 Microcapsules and their manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1184978A JPS5855813B2 (en) 1978-02-04 1978-02-04 Microcapsules and their manufacturing method

Publications (2)

Publication Number Publication Date
JPS54104487A true JPS54104487A (en) 1979-08-16
JPS5855813B2 JPS5855813B2 (en) 1983-12-12

Family

ID=11789162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1184978A Expired JPS5855813B2 (en) 1978-02-04 1978-02-04 Microcapsules and their manufacturing method

Country Status (1)

Country Link
JP (1) JPS5855813B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54110985A (en) * 1978-02-20 1979-08-30 Agency Of Ind Science & Technol Microcapsules and preparation thereof
JPS5946125A (en) * 1982-09-07 1984-03-15 Nippon Sanso Kk Preparation of microcapsule
JPS5946124A (en) * 1982-09-07 1984-03-15 Nippon Sanso Kk Preparation of microcapsule
WO2001013864A1 (en) * 1999-08-24 2001-03-01 Kose Corporation Water-containing powder composition, process for producing the same, and cosmetic preparation containing the powder composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08118142A (en) * 1994-10-26 1996-05-14 Osaka Diamond Ind Co Ltd Tipped saw

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54110985A (en) * 1978-02-20 1979-08-30 Agency Of Ind Science & Technol Microcapsules and preparation thereof
JPS5815172B2 (en) * 1978-02-20 1983-03-24 工業技術院長 Preparation method of microcapsules
JPS5946125A (en) * 1982-09-07 1984-03-15 Nippon Sanso Kk Preparation of microcapsule
JPS5946124A (en) * 1982-09-07 1984-03-15 Nippon Sanso Kk Preparation of microcapsule
JPH0367737B2 (en) * 1982-09-07 1991-10-24 Nippon Oxygen Co Ltd
JPH0367736B2 (en) * 1982-09-07 1991-10-24 Nippon Oxygen Co Ltd
WO2001013864A1 (en) * 1999-08-24 2001-03-01 Kose Corporation Water-containing powder composition, process for producing the same, and cosmetic preparation containing the powder composition
JP2001131528A (en) * 1999-08-24 2001-05-15 Kose Corp Hydrous powder composition and method for producing the same and cosmetic containing the same

Also Published As

Publication number Publication date
JPS5855813B2 (en) 1983-12-12

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