PROCESSING AID AND BLEND EMPLOYING THE PROCESSING AID FOR ACHIEVING EFFECTIVE ORIENTATION OF AN EXTRUDED FILM LAYER AND A BIAXIALLY ORIENTED FILM INCLUDING SUCH FILM LAYER |
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| 申请号 | US15544991 | 申请日 | 2016-01-21 | 公开(公告)号 | US20180009917A1 | 公开(公告)日 | 2018-01-11 |
| 申请人 | Taghleef Industries Inc.; | 发明人 | Anthony J. DENICOLA, Jr.; Andrew F. WILKIE; | ||||
| 摘要 | Processing aid for aiding in orienting an extruded film layer including a preponderance, by weight, of a high crystal-line polypropylene is a crystalline polypropylene wax. An oriented film layer including a blend of crystalline polypropylene wax and high crystallinity polypropylene homopolymer is part of the invention. The invention includes a method of forming an oriented film layer including a preponderance by weight of a high crystallinity polypropylene and includes the steps of blending a high crystallinity polypropylene with a crystalline polypropylene wax, directing the blend through an extruder to form a film layer and then orienting the film layer. The invention includes a biaxially oriented, multi-layer film including a base layer and at least one skin layer. The base layer includes a blend of crystalline metallocene catalyzed polypropylene wax and a high crystallinity polypropylene. | ||||||
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