公开(公告)号：US3745118A

公开(公告)日：1973-07-10

申请号：US3745118D

申请日：1970-12-14

Applicant: REPROGRAPHIC MATERIALS

Inventor： BRYNKO C

IPC: B01J2/08 ,  C09B67/00 ,  C09C1/36 ,  C09C3/04 ,  C09C3/10 ,  G03G9/08 ,  G03G9/02

CPC classification number: B01J2/08 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2004/80 ,  C09B67/00 ,  C09C1/3638 ,  C09C3/045 ,  C09C3/10 ,  G03G9/08

Abstract: RELATIVELY SPHERICAL PIGMENT PARTICLES OF UNIFORM SIZE ARE OBTAINED BY FORMING AN AQUEOUS SOLUTION OF A COACERVATABLE MATERIAL, INCORPORATING AN AQUEOUS DISPERSION OF A PIGMENT AND ANIONIC SURFACTANT INTO A COACERVATABLE SYSTEM, CAUSING COACERVATION OF SAID SYSTEM AND EFFECTING AGGLOMERATION OF SAID PIGMENT PARTICLES. THE PIGMENTS CAN BE AGGLOMERATED TO ANY DESIRED SIZE AND ARE USEFUL IN PREPARING TONER COMPOSITIONS FOR ELECTROPHOTOGRAPHY. SUCH TONERS COMPRISE A CORE OF SAID UNIFORM SUBSTANTIALLY SPHERICAL PIGMENT PARTICLES OVERCOATEDL AND SUBSTANTIALLY COMPLETELY SURROUNDED BY A THERMOPLASTIC RESINOUS COATING.

公开(公告)号：US3844811A

公开(公告)日：1974-10-29

申请号：US27668772

申请日：1972-07-31

Applicant: REPROGRAPHIC MATERIALS

Inventor： BRYNKO C

IPC: B01J2/08 ,  C09B67/20 ,  C09C1/58 ,  C09C3/04 ,  G03G9/093 ,  C08H17/02 ,  C09C1/04

CPC classification number: G03G9/09392 ,  B01J2/08 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2004/80 ,  C09B67/006 ,  C09C1/58 ,  C09C3/045

Abstract: Relatively spherical pigment particles of uniform size are obtained by mixing a coacervatable material with an aqueous dispersion of water insoluble pigment particles and an ionic surfactant causing coacervation of said system and effecting agglomeration of said pigment particles. The pigments can be agglomerated to any desired size and are useful in preparing toner compositions for electrophotography. Such toners comprise a core of said uniform substantially spherical pigment particles overcoated and substantially completely surrounded by a thermoplastic resinous coating.

Abstract translation: 通过将可凝聚材料与水不溶性颜料颗粒的水性分散体和离子表面活性剂混合，从而产生均匀尺寸的相对球形的颜料颗粒，引起所述体系的凝聚并引起所述颜料颗粒的聚集。 颜料可以凝聚成任何所需的尺寸，并且可用于制备用于电子照相术的调色剂组合物。 这种调色剂包括所述均匀的基本上球形的颜料颗粒的芯，其包覆并基本上完全被热塑性树脂涂层包围。