IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0060539
(2005-02-18)
|
등록번호 |
US-7399569
(2008-07-15)
|
우선권정보 |
JP-2004-042912(2004-02-19); JP-2004-105202(2004-03-31) |
발명자
/ 주소 |
- Tsurumi,Mitsuyuki
- Mitamura,Yasuhiro
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
▼
A microcapsule produced by a method involving a primary dispersed particle and a secondary dispersed particle, the capsule formation occurring at the interface of the secondary dispersed particle. A microcapsule containing a diazonium salt represented by a specific formula. A recording material uti
A microcapsule produced by a method involving a primary dispersed particle and a secondary dispersed particle, the capsule formation occurring at the interface of the secondary dispersed particle. A microcapsule containing a diazonium salt represented by a specific formula. A recording material utilizing the microcapsule.
대표청구항
▼
What is claimed is: 1. A method for producing a microcapsule containing a core substance, the method comprising: adding an oil phase solution including the core substance to an aqueous phase medium to form a first mixture; forming a first emulsion including a primary dispersed particle by emulsifyi
What is claimed is: 1. A method for producing a microcapsule containing a core substance, the method comprising: adding an oil phase solution including the core substance to an aqueous phase medium to form a first mixture; forming a first emulsion including a primary dispersed particle by emulsifying the first mixture; adding a wall material solution including a capsule wall material to the first emulsion so as to form a second mixture; forming a secondary dispersed particle by emulsifying the second mixture; and forming a capsule wall at an interface of the secondary dispersed particle. 2. A method for producing a microcapsule containing a core substance, the method comprising: adding a wall material solution including a capsule wall material to an aqueous phase medium to form a first mixture; forming a first emulsion including a primary dispersed particle by emulsifying the first mixture; adding an oil phase solution including the core substance to the first emulsion so as to form a second mixture; forming a secondary dispersed particle by emulsifying the second mixture; and forming a capsule wall at an interface of the secondary dispersed particle. 3. The method for producing a microcapsule containing a core substance according to claim 2, wherein the core substance includes a diazonium salt represented by the following formula (I) or (II): wherein in the formula (I): R1 and R2 each independently represent an alkyl group, an alkoxy group, an alkylthio group, an arylthio group or an alkylamino group; R3 to R6 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an alkylthio group, an arylthio group, an alkylamino group or a--N2+X- group; at least one of R3 to R6 represents a--N2+X- group; X- represents a monovalent counter anion; and Y1 represents a sulfur atom, an oxygen atom, or a nitrogen atom bound to an alkyl group, wherein in the formula (II): R7 and R8 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an alkylthio group, an arylthio group or an alkylamino group; R7 and R8 may be bound to each other to form a nitrogen-containing ring; R9 to R12 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an alkylthio group, an alkylamino group or a--N2+X- group; at least one of R9 to R12 represents a--N2+X- group; X- represents a monovalent counter anion; and Y2 represents a sulfur atom, an oxygen atom, or a nitrogen atom bound to an alkyl group. 4. A method for producing a microcapsule containing a core substance, the method comprising: adding an oil phase solution including the core substance to a first aqueous phase medium to form a first mixture; forming a first emulsion including a first primary dispersed particle of the core substance by emulsifying the first mixture; adding a wall material solution including a capsule wall material to a second aqueous phase medium to form a second mixture; forming a second emulsion including a second primary dispersed particle of the capsule wall material by emulsifying the second mixture; mixing the first emulsion and the second emulsion to form a third mixture; forming a secondary dispersed particle by emulsifying the third mixture; and forming a capsule wall at an interface of the secondary dispersed particle, wherein the core substance includes a diazonium salt represented by the following formula (I) or (II): wherein in the formula (I): R1 and R2 each independently represent an alkyl group, an alkoxy group, an alkylthio group, an arylthio group or an alkylamino group; R3 to R6 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an alkylthio group, an arylthio group, an alkylamino group or a--N2+X- group; at least one of R3 to R6 represents a--N2+X- group; X- represents a monovalent counter anion; and Y1 represents a sulfur atom, an oxygen atom, or a nitrogen atom bound to an alkyl group, wherein in the formula (II): R7 and R8 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an alkylthio group, an arylthio group or an alkylamino group; R7 and R8 may be bound to each other to form a nitrogen-containing ring; R9 to R12 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an alkylthio group, an alkylamino group or a--N2+X- group; at least one of R9 to R12 represents a--N2+X- group; X- represents a monovalent counter anion; and Y2 represents a sulfur atom, an oxygen atom, or a nitrogen atom bound to an alkyl group.
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