公开(公告)号：US3928668A

公开(公告)日：1975-12-23

申请号：US46708674

申请日：1974-05-06

Applicant: FERRO CORP

Inventor： SNOW JERRY D

IPC: C04B33/02 ,  C03C8/14 ,  C04B41/45 ,  C04B41/84 ,  C09D183/04 ,  C23D5/04 ,  B05B5/02 ,  B44D1/094

CPC classification number: C04B41/009 ,  C04B41/4584 ,  C04B41/5025 ,  C08K7/18 ,  C09D183/04 ,  C23D5/04 ,  C04B41/4505 ,  C04B41/4905 ,  C04B35/00 ,  C08L2666/54 ,  C08L83/04

Abstract: A novel dry ceramic powder and process for its electrostatic deposition are disclosed, characterized in that the powder is coated with a liquid, curable organopolysiloxane which is polymerized to a solid form before the powder is deposited. Preferably, the polysiloxane is monosubstituted, leaving hydrogen linkages which react with surfaces of the particles comprising the ceramic powder and thereby chemically unite the polysiloxane with the particles. The present ceramic powder can be electrostatically deposited onto a substrate and retain an electrostatic charge for appreciable periods of time, even in environments having fairly high relative humidities, for example 75% and higher.

Abstract translation: 公开了一种新颖的干燥陶瓷粉末及其静电沉积方法，其特征在于粉末涂覆有液体可固化的有机聚硅氧烷，其在沉积粉末之前聚合成固体形式。 优选地，聚硅氧烷是单取代的，留下氢键，其与包含陶瓷粉末的颗粒的表面反应，从而将聚硅氧烷与颗粒化学地结合。 即使在具有相当高的相对湿度，例如75％以上的环境中，本陶瓷粉末也可以静电沉积在基板上并保持静电电荷可观的时间。