发明名称 |
Compositions for controlled release |
摘要 |
The present invention relates to biodegradable chemical compositions wherein core substrates, particularly oil well chemicals, are adsorbed onto particulate starch, particularly granular starch, providing a stable, controlled release formulation suitable for use in oil field applications. The invention further relates to the process of preparing obtaining these compositions.
|
申请公布号 |
US6723683(B2) |
申请公布日期 |
2004.04.20 |
申请号 |
US20010924179 |
申请日期 |
2001.08.07 |
申请人 |
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION |
发明人 |
CROSSMAN MARTIN C.;ROSIE JAMES A.;SOLAREK DANIEL B |
分类号 |
C08L3/00;C08L3/02;C08L3/06;C09K8/536;C09K8/70;C09K8/92;(IPC1-7):C09K7/00 |
主分类号 |
C08L3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|