Methods and devices for stretching polymer films

Details Methods and devices for stretching polymer films Methods and devices for stretching polymer films

2005-09-27

2005-09-27

Lechert, Jr., Stephen J. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Reshaping running or indefinite-length work

C264S290200, C264S291000

Reexamination Certificate

active

06949212

ABSTRACT:
Stretched polymeric films can be used in a variety of applications, including optical applications. The stretching conditions and shape of the stretching tracks in a stretching apparatus can determine or influence film properties. Methods and stretching apparatuses can include adjustable or zone-defined stretching regions.

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