Title:
HOLLOW EMULSION PARTICLE
Document Type and Number:
Japanese Patent JP3217417
Kind Code:
B2
Abstract:
PURPOSE: To obtain the title particle excellent in gloss, opacity, whiteness, driability, solid concentration by weight and capable of giving a paper coating composition having low viscosity under high shear force and excelling coating workability by giving a bimodal particle diameter distribution thereto.
CONSTITUTION: Emulsion particles comprising a group of hollow particles having voids in their insides when dry and a group of particles smaller than the above particles and having a bimodal particle diameter distribution, wherein the diameter D of a hollow particle is 0.3-5.0μm, the diameter D of a coexisting smaller particle is 0.05-0.3μm and is always smaller than D/2. The emulsion particles are excellent not only in gloss, opacity and whiteness but also in driability and solid concentration by weight and can give a paper coating composition having a low viscosity under high shear force and excellent coating workability which could not be attained by conventional hollow emulsion particles having a uniform particle diameter.
Inventors:
Futoshi Hoshino
Akihiro Yamazaki
Nakano Makoto
Someya Kosuke
Yanagihara
Akihiro Yamazaki
Nakano Makoto
Someya Kosuke
Yanagihara
Application Number:
JP34077491A
Publication Date:
October 09, 2001
Filing Date:
December 24, 1991
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08F2/22; C09D7/12; D21H19/56; D21H19/58; (IPC1-7): C08F2/22; D21H19/56
Domestic Patent References:
| JP2140272A | ||||
| JP51125147A |
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)