| 发明名称 | Substituted cellulose acetates and uses thereof | ||
| 摘要 | The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a drilling fluid having a base fluid and a viscosifier having a substituted cellulose acetate having a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate. | ||
| 申请公布号 | US9167830(B2) | 申请公布日期 | 2015.10.27 |
| 申请号 | US201213359568 | 申请日期 | 2012.01.27 |
| 申请人 | Celanese Acetate LLC | 发明人 | Combs Michael T.;Garrett Thomas S. |
| 分类号 | A61K9/14;A23G3/36;C08B5/00;A23L1/39;A23L1/0534;A23L1/06;C09K8/035;C09D101/12;C08B3/06;C08B3/22;C08B5/14;C08B7/00;C09D101/16;C09D101/20;C09J101/12;C08L1/12;C08L1/16;C08L1/20;C09J101/16;C09J101/20;C09K17/40;A23G3/42;A61K8/73;A61Q19/00 | 主分类号 | A61K9/14 |
| 代理机构 | McDermott Will & Emery LLP | 代理人 | McDermott Will & Emery LLP ;Jones Kurt |
| 主权项 | 1. A paint composition comprising: a pigment; and a stabilizing film forming agent that comprises a substituted cellulose acetate comprising an acetate substituent and a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group consisting of: sulfur, phosphorus, boron, and chlorine; wherein a degree of polar substituent substitution is about 0.005 to about 0.02; and wherein a degree of acetate substitution is greater than the degree of polar substituent substitution. | ||
| 地址 | Irving TX US | ||