发明名称 |
Semi-crystalline ethylene vinyl acetate emulsion polymers for heat seal applications |
摘要 |
<p>This invention is directed to aqueous-based ethylene-vinyl acetate (EVA) polymer emulsions suited for use in heat seal applications. The EVA polymers of this invention are produced by a relatively low-pressure process, i.e., less than 2000 psig, preferably from about 1000 to about 2000 psig. The aqueous-based EVA based polymer emulsions contain crystalline segments resulting from ethylene linkages and are prepared by emulsion polymerizing ethylene and vinyl acetate, preferably with a carboxylic monomer, in the presence of a stabilizing system containing surfactant or a cellulosic protective colloid in combination with surfactant.</p> |
申请公布号 |
EP1454930(B1) |
申请公布日期 |
2009.11.25 |
申请号 |
EP20030029759 |
申请日期 |
2003.12.23 |
申请人 |
WACKER CHEMICAL CORPORATION |
发明人 |
RABASCO, JOHN JOSEPH;DANIELS, CHRISTIAN LEONARD;HORWAT, DAVID WILLIAM;VRATSANOS, MENAS SPYROS;BOTT, RICHARD HENRY |
分类号 |
C08F2/24;C08F210/02;C08F218/08;C08J3/07;C08L1/02;C09D123/08;C09J11/08;C09J123/08;C09J131/04;C09J133/02 |
主分类号 |
C08F2/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|