Invention Grant
US07704552B2 Process for producing chemically treated amorphous precipitated silica
有权
用于生产经化学处理的无定形沉淀二氧化硅的方法
- Patent Title: Process for producing chemically treated amorphous precipitated silica
- Patent Title (中): 用于生产经化学处理的无定形沉淀二氧化硅的方法
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Application No.: US11014332Application Date: 2004-12-16
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Publication No.: US07704552B2Publication Date: 2010-04-27
- Inventor: Timothy A. Okel , James R. Hahn , Raymond R. Ondeck
- Applicant: Timothy A. Okel , James R. Hahn , Raymond R. Ondeck
- Applicant Address: US OH Cleveland
- Assignee: PPG Industries Ohio, Inc.
- Current Assignee: PPG Industries Ohio, Inc.
- Current Assignee Address: US OH Cleveland
- Agent Frank P. Mallak; Deborah M. Aktman
- Main IPC: B05D7/00
- IPC: B05D7/00
Abstract:
Described is an improved process for producing chemically treated fillers by using a certain combination of functionalizing and hydrophobizing agents in an aqueous suspension of inorganic oxide having a pH of 2.5 or less and increasing the pH of the suspension after chemically treating the filler.
Public/Granted literature
- US20050176852A1 Process for producing chemically treated fillers Public/Granted day:2005-08-11
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