公开(公告)号：US10392304B2

公开(公告)日：2019-08-27

申请号：US15023168

申请日：2014-09-16

Applicant: GCP Applied Technologies Inc.

Inventor： Leslie A. Jardine ,  Josephine H. Cheung

IPC: C04B16/02 ,  C04B16/04 ,  C04B40/00 ,  C04B7/00 ,  C04B7/34 ,  C04B28/00 ,  C04B32/00 ,  C04B16/00 ,  C04B24/00 ,  C04B24/10 ,  C04B103/52

Abstract: The present invention provides cement grinding additive compositions and methods which allow a PVC-safe, powerful, and robust defoaming agent to be uniformly dispersed throughout a broad concentration range while retaining storage stability even in cases wherein the defoaming agent is highly diluted. Exemplary cement grinding additive compositions comprise at least one amine cement grinding additive; an air detrainer selected from the group consisting of (i) ethoxylated, propoxylated fatty alcohol or alkylphenol, (ii) polyalkoxylated polyalkylene polyamine, or (iii) a mixture thereof.