Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1997-12-31
2000-06-06
Ball, Michael W.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
26417314, 26417315, 26417316, 26417319, 2642902, B29C 4706, B29C 4712
Patent
active
060714506
ABSTRACT:
A microlayer polymer film comprising a plurality of coextruded microlayers including a non-degradable layer comprising a non-water degradable, melt-extrudable polymer and degradable layer comprising a water degradable, melt-extrudable polymer. The microlayer polymer film degrades when soaked in water and is suitable as a covering material for disposal items such as flushable diapers. The microlayer polymer film is also breathable and is a barrier to small amounts of water. A suitable non-water degradable, melt-extrudable polymer is linear low density polyethylene filled with a particulate filler. A suitable water degradable, melt-extrudable polymer is polyethylene oxide.
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Mueller et al., Novel Structures by Microlayer Coextrusion -Talc-Filled PP, PC/SAN, and HDPE/LLDPE, Polymer Engineering and Science, Feb. 1997, vol. 37, No. 2, pp. 355-362.
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Branham Kelly Dean
Soerens Dave A.
Topolkaraev Vasily
Ball Michael W.
Kimberly--Clark Worldwide, Inc.
Musser Barbara
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