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US 7,025,912 B2Granted
Microcapsule and manufacturing method thereof
AssigneeFuji Photo Film Co., Ltd.
InventorsSatoru Yamada, Yuuichi Fukushige, Kyoko Senga, Naoto Yanagihara
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Abstract
A microcapsule in which a capsule wall of the microcapsule comprises a first polymer component. A surface of the capsule wall is modified with a second polymer component that is formed from a monomer having an ethylenic unsaturated bond.
Claims13
A method of manufacturing a microcapsule, comprising:
- forming a capsule wall with a first polymer component in a liquid composition;
- and
- modifying a surface of the capsule wall with a second polymer component by adding a monomer having an ethylenic unsaturated bond to the liquid composition obtained in the forming of the capsule wall, to thereby polymerize the monomer.
A method of manufacturing a microcapsule, comprising:
- forming a capsule wall with a third polymer component that is formed by using isocyanate in a liquid composition;
- and
- modifying a surface of the capsule wall with a fourth polymer component comprising polymer particles including a polymer that is formed without using isocyanate, by adding the polymer particles to the liquid composition obtained in the forming of the capsule wall.
Dependencies are inferred from the claim text.