MICROPOROUS SEPARATION MEMBRANE COMPRISING POLYPROPYLENE RESIN
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Feb 25, 2016
app pub date -
Feb 25, 2014
filing date -
Apr 15, 2013
priority date (Note) -
Published
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Abstract
Provided is a microporous separation membrane using a polypropylene resin, and more specifically, a microporous polymer separation membrane produced using a polypropylene resin, of which, at 230° C. under 2.16 kg, the melt index is 0.5 to 10 g/10 min., the polydispersity index is 5 or more, and the stereoregularity (isotactic index) is 94% or more.
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
HANWHA TOTAL PETROCHEMICAL CO LTD | SEOSAN-SI CHUNGCHEONGNAM-DO 31900 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
LEE, Do Hoon | Seosan-si, KR | 159 | 898 |
# of filed Patents : 159 Total Citations : 898 | |||
PARK, Byoung Sun | Seoul, KR | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 | |||
PARK, Dae Ho | Seoul, KR | 4 | 5 |
# of filed Patents : 4 Total Citations : 5 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 25, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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