Thermoplastic films having asymmetric properties
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United States of America Patent
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May 26, 2020
Grant Date -
Jul 7, 2016
app pub date -
Jan 6, 2016
filing date -
Jan 6, 2015
priority date (Note) -
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Abstract
A thermoplastic film is provided that includes a biaxially-oriented polyethylene terephthalate (PET) layer, a tensile strength in the longitudinal and transverse directions of about 2000 kg/cm2 or 3000 kg/cm2 or more, and a tear force in the longitudinal direction that is about 1.5 times as large as a tear force in the transverse direction. Such a film can include two or more layers. Processes for producing the thermoplastic film are also provided.
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- B29K:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, ....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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