发明授权
- 专利标题: Paint thickener
- 专利标题(中): 油漆增稠剂
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申请号: US796844申请日: 1985-11-12
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公开(公告)号: US4677158A公开(公告)日: 1987-06-30
- 发明人: Su C. Tso , Gary W. Beall , Mary C. Holthouser
- 申请人: Su C. Tso , Gary W. Beall , Mary C. Holthouser
- 申请人地址: KY Louisville
- 专利权人: United Catalysts Inc.
- 当前专利权人: United Catalysts Inc.
- 当前专利权人地址: KY Louisville
- 主分类号: C01B33/44
- IPC分类号: C01B33/44 ; C09D7/00 ; C08L75/04
摘要:
A process whereby a smectite clay having a cationic exchange capacity of at least 50 meq./100 gm of clay is reacted with a quaternary ammonium compound to yield a cationic structure suitable as a thickener for aqueous suspensions, particularly latex paints and caulks. The general structure of the quaternary ammonium compound is typically a nitrogen atom bonded to four separated carbon chains where one chain can be a methyl or alkyl group containing 10 to 22 carbons, and the second chain an alkyl group containing from 10 to 22 carbons or a polyoxyethylene chain. The third and fourth chains are polyoxyethylene chains where the total munber of ethylene oxide units is from 5 to 200 moles.
公开/授权文献
- US5791065A Gas heated paper dryer 公开/授权日:1998-08-11