公开(公告)号：US09748546B2

公开(公告)日：2017-08-29

申请号：US14604539

申请日：2015-01-23

Applicant: Amtek Research International LLC

Inventor： Jeff Frenzel ,  Jungseung Kim ,  Robert R. Waterhouse ,  Richard W. Pekala

IPC: H01M2/16 ,  H01M10/06

CPC classification number: H01M2/166 ,  H01M10/06

Abstract: A flexible microporous polymer sheet having first and second opposite major surfaces comprises a polymer matrix binding a filler component that exhibits high oil absorption capacity in its initial state before the start of material processing. The polymer matrix includes a polyolefin component and has three-dimensional interconnecting and interpenetrating pore and polymer networks through which the bound filler component is distributed from the first major surface to the second major surface. The polyolefin and filler components are included in amounts that result in a microporous polymer sheet having between about 75% and about 90% porosity and containing less than about 10 wt. % polyolefin component. Preferred polyolefin and filler components include ultrahigh molecular weight polyethylene and high oil absorption precipitated silica, respectively.

公开(公告)号：US10396330B2

公开(公告)日：2019-08-27

申请号：US15385531

申请日：2016-12-20

Applicant: AMTEK RESEARCH INTERNATIONAL LLC

Inventor： Richard W. Pekala ,  Jeff Frenzel ,  Robert R. Waterhouse

IPC: H01M2/16 ,  B29C48/00 ,  H01M2/14 ,  B01J2/04 ,  B29B11/12 ,  B29B11/16 ,  B29D30/04 ,  C08K3/36 ,  B29K105/16 ,  B29K421/00 ,  B29K509/00 ,  B29L31/34

Abstract: Granules containing mixtures of silica powder and cross-linked rubber powder are used in the manufacture of battery separators or vehicle tires. A granule contains silica and rubber powders in proportional amounts that form a silica powder carrier within which rubber powder particles are distributed. Incorporating silica-rubber granules in the manufacturing process of polyethylene separators offers a way to limit water loss in and improve the cycle life of a deep cycle lead-acid battery. Incorporating silica-rubber granules in the manufacturing process of vehicle tires affords advantages including easier material handling, reduced production of dust, and reduction in the number of ingredients measured and added to the formulation.

公开(公告)号：US20150207121A1

公开(公告)日：2015-07-23

申请号：US14604539

申请日：2015-01-23

Applicant: Amtek Research International LLC

Inventor： Jeff Frenzel ,  Jungseung Kim ,  Robert R. Waterhouse ,  Richard W. Pekala

IPC: H01M2/16

CPC classification number: H01M2/166 ,  H01M10/06

Abstract: A flexible microporous polymer sheet having first and second opposite major surfaces comprises a polymer matrix binding a filler component that exhibits high oil absorption capacity in its initial state before the start of material processing. The polymer matrix includes a polyolefin component and has three-dimensional interconnecting and interpenetrating pore and polymer networks through which the bound filler component is distributed from the first major surface to the second major surface. The polyolefin and filler components are included in amounts that result in a microporous polymer sheet having between about 75% and about 90% porosity and containing less than about 10 wt. % polyolefin component. Preferred polyolefin and filler components include ultrahigh molecular weight polyethylene and high oil absorption precipitated silica, respectively.

Abstract translation: 具有第一和第二相对主表面的柔性微孔聚合物片材包括聚合物基体，其结合在开始材料加工之前其初始状态下具有高吸油量的填料组分。 聚合物基质包括聚烯烃组分并且具有三维互连和互穿孔和聚合物网络，通过该网络，结合的填料组分从第一主表面分配到第二主表面。 包含的聚烯烃和填料组分的量使得微孔聚合物片材的孔隙率为约75％至约90％且含有小于约10wt。 ％聚烯烃组分。 优选的聚烯烃和填料组分分别包括超高分子量聚乙烯和高吸油沉淀二氧化硅。