公开(公告)号：US10207933B2

公开(公告)日：2019-02-19

申请号：US14761475

申请日：2014-01-17

Applicant: IMERYS TALC AMERICA, INC.

Inventor： Peter Rugheimer ,  Robert Beck ,  Dennis Paul Lester

IPC: C01B33/22 ,  D21H17/68 ,  C09C1/02 ,  C09C1/28

Abstract: A deaerated talc may include micronized, talc powder having a Hegman rating of 4.0 or greater. A deaerated talc may include micronized talc powder having enough cohesive strength for form agglomerations measuring 100 millimeters or less, 75 millimeters or less, or 50 millimeters or less. A deaerated talc product may include a micronized talc powder, and a bag containing the deaerated talc. The micronized talc powder may be deaerated via application of force to the micronized talc powder in at least two directions, including a first direction substantially parallel to the longitudinal direction of the bag and a second direction.