Title:
【発明の名称】封入磁性粒子,顔料及びカーボンブラック,それに関連した組成物及び方法
Document Type and Number:
Japanese Patent JP3098033
Kind Code:
B2
Abstract:
Encapsulated particles, such as magnetic particles, colored pigments, or carbon black, with high chemical affinity for ink vehicles. The encapsulated particles of this invention are suitable for printing inks, as well as for magnetic recording systems, such as audio and video tapes and magnetic storage disks, when the encapsulated particles are magnetic particles. The encapsulated particles comprise particles having a coating on their surface, said coating comprising in one embodiment an ionomer and in another embodiment, an oil, such as soya oil, and optionally a thixotropic agent, and/or a binder resin. The method of the present invention for making such encapsulated particles avoids the use of volatile organic solvents and provides printing inks and coating compositions comprising such encapsulated particles, that also avoid the use of volatile organic solvents. Inks may be readily formulated without the need for the complicated and expensive flushing process, by simply dispersing the encapsulated colored pigment or carbon black in the desired vehicle.
Inventors:
Elwar Kill Hamdy A
Application Number:
JP51997593A
Publication Date:
October 10, 2000
Filing Date:
May 07, 1993
Export Citation:
Assignee:
Video Jet Systems International, Inc.
International Classes:
C08K3/00; C08K3/02; C08K3/04; C08K9/10; C08L23/30; C08L91/00; C08L93/00; C08L101/00; C08L101/12; C09B67/08; C09C3/00; G03G9/08; C09C3/06; C09C3/10; C09D11/02; G03G9/083; G03G9/09; G03G9/12; G03G9/13; G03G9/135; G11B5/706; G11B5/712; H01F1/00; H01F41/16; C09D; G03G; G11B; (IPC1-7): C09C3/10; C08K9/10; C08L23/30; C08L91/00; C08L93/00; C08L101/12; C09D11/02; G03G9/083; G03G9/13; G11B5/706; H01F1/00
Domestic Patent References:
| JP29677A | ||||
| JP2202958A | ||||
| JP1224775A | ||||
| JP63223757A | ||||
| JP57105458A | ||||
| JP1284564A | ||||
| JP4285016A | ||||
| JP528480A |
Attorney, Agent or Firm:
Atsushi Hakoda