Patents

Films, Compositions and Processes

November 29, 2005

An oriented polymeric film has been patented. It comprises at least one layer with a first material that is very highly crystalline polypropylene homopolymer (VHCPP), which has a very high intermolecular stereoregularity consisting of at least about 98% of isotactic polymer. The remainder of the material (if any) is atactic polymer. A second material comprises at least one polymer having a ring and ball softening point from 110° C. to 170° C. and/or a nucleating agent. The second material may also include at least two second materials comprising hydrogenated hydrocarbon resin(s) of different types and/or nucleating agent(s). The second material is added in an amount sufficient for the film to exhibit two or more of the following properties measured in any direction parallel to the film surface and, where necessary, normalized for a 20 micron thick film: WVTR less than about 6 g/24 hours/m2; OTR less than about 1,500 cm3/24 hours/m2; Young’s modulus from 4000 MPa to 5000 MPa, Flexural modulus from 0.4 N (mm2) to 0.7 N (mm2); haze less than about 1.1%; and/or a clarity greater than 97%.
  • Flushable Wipes Update

    Flushable Wipes Update

    Karen McIntyre, editor||April 13, 2016
    INDA president continues to make defending flushable wipes one of his top priorities.

  • Wipes Entrepreneurs Target Men

    Wipes Entrepreneurs Target Men

    Tara Olivo, associate editor||April 13, 2016
    As more men groom with personal care products, new innovators are seeing opportunities in the wipes market.

  • Germany's Dr. Schumacher Expands Personal Care Wipe Plan

    By Jaroslaw Adamowski, correspondent||April 13, 2016
    50,000 square foot facility opens four years after older site was lost in fire.