Back to results
US 2005/0187102 A1Published application
Method for producing microcapsules, microcapsules, recording material, and heat-sensitive recording material
AssigneeFuji Photo Film Co., Ltd.
InventorsMitsuyuki Tsurumi, Yasuhiro Mitamura
Life of this patent
Estimating the term…
Abstract
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.
Claims19
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.
3 more elements
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 more elements
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 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 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.
5 more elements
Dependencies are inferred from the claim text.