KR900001406A - Recipe of microcapsules - Google Patents

Recipe of microcapsules Download PDF

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Publication number
KR900001406A
KR900001406A KR1019880008373A KR880008373A KR900001406A KR 900001406 A KR900001406 A KR 900001406A KR 1019880008373 A KR1019880008373 A KR 1019880008373A KR 880008373 A KR880008373 A KR 880008373A KR 900001406 A KR900001406 A KR 900001406A
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South Korea
Prior art keywords
weight
wall
melamine
formaldehyde
acidic aqueous
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KR1019880008373A
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Korean (ko)
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KR910000711B1 (en
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김재조
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김인호
전주제지 주식회사
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Priority to KR1019880008373A priority Critical patent/KR910000711B1/en
Publication of KR900001406A publication Critical patent/KR900001406A/en
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Publication of KR910000711B1 publication Critical patent/KR910000711B1/en

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    • 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
    • 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

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

Abstract

내용 없음No content

Description

미소 캡슐의 제조법Recipe of microcapsules

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (8)

알카리성 수용액상에서 제조된 멜라민-포름알데히드 예비축합물과 우레아-포름알데히드 예비축합물과의 조성으로 이루어진 수용액에 스타이렌-무수말레인산 공중합체, 폴리카본산, 나프탈렌 설폰산-포름말린 축합물의 산성 수용액 매질중에 소수성 염료용액을 불연속한 미소입자로 분산시켜 유화한 것을 첨가하여 가열, 약산성의 조건에서 반응시켜 미소입자 주위에 벽막을 형성하고 알카리 조건에서 벽막을 안정화시키는 것을 특징으로 하는 미소 캡슐의 제조법.Acidic aqueous medium of styrene-maleic anhydride copolymer, polycarboxylic acid, naphthalene sulfonic acid-formalin condensate in an aqueous solution consisting of a composition of melamine-formaldehyde precondensate prepared in alkaline aqueous solution and urea-formaldehyde precondensate A method for producing a microcapsule, wherein the hydrophobic dye solution is dispersed in discontinuous microparticles and emulsified, and then reacted under heating and weakly acidic conditions to form a wall around the microparticles and to stabilize the wall membrane under alkaline conditions. 제 1항에 있어서, 산성 수용액 매질이, 스타이렌-무수말레인산 공중합체가 4 내지 7중량%, 폴리카본산인 1중량% 미만, 나프타린 설폰산-포름말린 축합물이 2중량% 미만임을 특징으로 하는 미소 캡슐의 제조법.The acidic aqueous medium is characterized in that the styrene-maleic anhydride copolymer is 4 to 7% by weight, less than 1% by weight of polycarboxylic acid, and the naphthalin sulfonic acid-formalin condensate is less than 2% by weight. Recipe of smiling capsules. 제 1항에 있어서, 산성 수용액 매질이 pH 4.5 내지 5.5 및 온도 25℃ 내지 45℃에서 2,000centi poise 이하임을 특징으로 하는 미소 캡슐의 제조법.The method of claim 1, wherein the acidic aqueous medium is less than 2,000 centi poise at a pH of 4.5 to 5.5 and a temperature of 25 ℃ to 45 ℃. 제 1항에 있어서, 산성 수용액 매질 100중량부당 수용성 멜라민-포름알데히드 예비축합물을 1000 내지 4000중량부로 해서 벽막을 형성함을 특징으로 하는 미소 캡슐의 제조법.The method for producing a microcapsule according to claim 1, wherein the wall film is formed by using 1000 to 4000 parts by weight of the water-soluble melamine-formaldehyde precondensate per 100 parts by weight of the acidic aqueous solution medium. 제 1항에 있어서, 산성 수용액 매질 100중량부당 수소성 염료용액 1000 내지 3500 중량부의 비에 의해 3000 내지 7000rpm의 조건에서 유화액을 제조함을 특징으로 하는 미소 캡슐의 제조법.The method of claim 1, wherein the emulsion is prepared under the conditions of 3000 to 7000 rpm by a ratio of 1000 to 3500 parts by weight of the hydrogen dye solution per 100 parts by weight of the acidic aqueous solution medium. 제 1항에 있어서, 멜라민-포름알데히드 예비축합물 5 내지 100중량%, 우레아-포름알데히드 예비축합물 95 내지 0중량%의 조성을 갖는 알카리성 수용액임을 특징으로 하는 미소 캡슐의 제조법.The method of claim 1, wherein the alkaline capsule solution has a composition of 5 to 100% by weight of the melamine-formaldehyde precondensate and 95 to 0% by weight of the urea-formaldehyde precondensate. 제 1항에 있어서, 멜라민 100몰%를 증류수 4000 내지 5000몰%에 넣고 pH를 8 내지 10으로 조정한후 50 내지 70℃에서 포름알데히드 300 내지 550몰%를 반응시켜 생성된 수용성 멜라민-포름알데히드 예비축합물임을 특징으로 하는 미소 캡슐의 제조법.The water-soluble melamine-formaldehyde preliminary preparation according to claim 1, wherein 100 mol% of melamine is added to 4000-5000 mol% of distilled water, and the pH is adjusted to 8-10, followed by reaction of 300-550 mol% of formaldehyde at 50-70 ° C. A method for producing a microcapsule, characterized in that it is a condensate. 제 1항에 있어서, 벽막 형성을 위해 pH를 5.5 내지 7.0으로 유지하고 온도를 60℃에서 시작하여 30분 내지 1시간 동안에 90℃까지 점차로 가열하여 90℃에서 10 내지 30분간 벽막을 형성시키고 85℃로 온도를 낮추어 1시간 동안 반응시킨 후 65℃로 냉각하여 암모니아수로 pH를 8.0 내지 8.5로 일차 조정한후 20% 가성소다 수용액으로 pH를 9 내지 10으로 재조정하여 벽막을 안정화시키는 것을 특징으로 하는 미소 캡슐의 제조법.The method according to claim 1, wherein the pH is maintained at 5.5 to 7.0 for the formation of the wall and the temperature is started at 60 ° C and gradually heated to 90 ° C for 30 minutes to 1 hour to form a wall at 90 ° C for 10 to 30 minutes Reaction temperature for 1 hour by lowering the furnace temperature, and then cooled to 65 ° C, the pH was first adjusted to 8.0 to 8.5 with ammonia water, and then the pH was adjusted to 9 to 10 with 20% aqueous sodium hydroxide solution to stabilize the wall membrane. Recipe. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880008373A 1988-07-06 1988-07-06 Preparation method of microcapsules KR910000711B1 (en)

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Application Number Priority Date Filing Date Title
KR1019880008373A KR910000711B1 (en) 1988-07-06 1988-07-06 Preparation method of microcapsules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880008373A KR910000711B1 (en) 1988-07-06 1988-07-06 Preparation method of microcapsules

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KR900001406A true KR900001406A (en) 1990-02-27
KR910000711B1 KR910000711B1 (en) 1991-01-31

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000342956A (en) * 1999-04-01 2000-12-12 Dai Ichi Kogyo Seiyaku Co Ltd Microcapsule production method and microcapsule obtained thereby
FR3018701A1 (en) * 2014-03-21 2015-09-25 Commissariat Energie Atomique MELAMINE-UREA-FORMALDEHYDE (MUF) PARTICLES CONTAINING A POLYMER HAVING A TG LESS THAN 75 ° C

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Publication number Publication date
KR910000711B1 (en) 1991-01-31

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