发明名称 IONOMER COMPOSITIONS WITH LOW HAZE AND HIGH MOISTURE RESISTANCE AND ARTICLES COMPRISING THE SAME
摘要 A sodium/zinc mixed ionomer comprises carboxylate groups and a combination of counterions that consists essentially of sodium cations and zinc cations. The sodium/zinc mixed ionomer is the neutralization product of a precursor acid copolymer. The precursor acid copolymer comprises copolymerized units of an α-olefin and an α,&bgr;-ethylenically unsaturated carboxylic acid, and it has a melt flow rate of about 10 to about 4000 g/10 min. In addition, the precursor acid copolymer, when neutralized to a level of about 40% to about 90%, and when comprising counterions that consist essentially of sodium ions, produces a sodium ionomer that has a freeze enthalpy that is not detectable or that is less than about 3.0 j/g, when determined by differential scanning calorimetry. Further provided are articles comprising or prepared from the sodium/zinc mixed ionomer.
申请公布号 EP2376548(A1) 申请公布日期 2011.10.19
申请号 EP20090836577 申请日期 2009.11.02
申请人 E. I. DU PONT DE NEMOURS AND COMPANY 发明人 HAUSMANN, KARLHEINZ;HAYES, RICHARD, ALLEN;PESEK, STEVEN, C.;SHAFFER, W., ALEXANDER;SMITH, CHARLES, ANTHONY
分类号 C08F220/06;B32B17/10;C08F8/44;C08L23/08 主分类号 C08F220/06
代理机构 代理人
主权项
地址