发明名称 |
Leaching contaminants from post-consumer for reuse in food-contact applications |
摘要 |
A novel technique to treat post-consumer polyester for reuse in food-contact applications is described. The process comprises contacting contaminated post consumer polyester flake with at least one extraction solvent which is soluble in said contaminated flake at a temperature sufficient to allow rapid diffusion of contaminants from said polyester flake; and removing said extraction solvent containing said contaminants from said polyester flake.
|
申请公布号 |
US5780520(A) |
申请公布日期 |
1998.07.14 |
申请号 |
US19960772236 |
申请日期 |
1996.12.23 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
REEVES, BILLY J.;EKART, MICHAEL P.;HEISE, WILLIAM H.;SHADDEN, JOHNNY W.;STIPE, CANDACE M. |
分类号 |
B01D11/04;B01D11/02;C08J11/08;(IPC1-7):C08J11/04 |
主分类号 |
B01D11/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|