Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1996-05-28
1999-07-13
Chen, Vivian
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428 366, 428 369, 428421, 428422, 526250, 526253, 526254, 526255, 2641711, 26417316, 4274071, B32B 108, B32B 2708, B32B 2732, B32B 3130
Patent
active
059224258
ABSTRACT:
A multi-layer composition comprises (a) a first layer comprising semi-crystalline copolymer comprising interpolymerized units derived from tetrafluoroethylene and allylic hydrogen-containing olefin monomer (e.g., propylene), wherein less than 10% of the total heat of fusion is attributable to a secondary melt-transition above 300.degree. C. as shown by the heating curve from Differential Scanning Calorimetry; and (b) a second layer comprising melt-processable polymer (e.g., polyethylene) which is both substantially thermally stable and capable of being melt-processed at temperatures below the decomposition temperature of the semi-crystalline copolymer. The multi-layer composition can be used to form shaped articles (e.g., films, sheets, tubing, coated wires, cable jacketing, or bottles) for use in a variety of applications.
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Chen Vivian
Minnesota Mining and Manufacturing Company
Weiss Lucy C.
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