Heat sealable microporous polypropylene films

United States of America Patent

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Mar 29, 1988
Grant Date
N/A
app pub date
Mar 27, 1987
filing date
Mar 27, 1987

priority date (Note)
Expired

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Abstract

This invention relates to a microporous film having a heat sealable layer on one or both sides thereof. The porosity and permeability of the microporous layer are retained despite the application of the heat seal layer.

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Patent Owner(s)

Patent Owner	Address
APPLIED EXTRUSION TECHNOLOGIES INC	96 SWAMPSCOTT RD SALEM MA 01970

International Classification(s)

B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hill, David J	Wilmington, DE	25	530

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Heat sealable microporous polypropylene films

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07030801

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PATENT NO	4734324
SERIAL NO	07030801
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