ELECTRET MELT-BLOWN WEBS WITH IMPROVED FILTRATION PROPERTIES
World Intellectual Property Organization Patent
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Abstract
Electret melt-blown webs made from a polypropylene composition (PC) comprising a propylene homopolymer (HPP) having: a. a melt flow rate MFR2 in the range from 400 to 5000 g/10 min, b. a melting temperature Tm, in the range from 140 to 160 °C, and c. a content of 2, 1 erythro regiodefects in the range from 0.01 to 1.5 mol%.

First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Country Designations

Patent Owner(s)
Patent Owner | Address |
---|---|
BOREALIS AG | ATAUSTRIA VIENNA VIENNA VIENNA |
International Classification(s)
- D01D:MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
- B01D:SEPARATION

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address |
---|---|
BERNREITNER KLAUS | 4010 LINZ |
GAHLEITNER MARKUS | 4021 LINZ |
FIEBIG JOACHIM | ST MARIEN |
LESKINEN PAULI | 06101 PORVOO |
VAN PARIDON HENK | AVERBODE |
WANG JINGBO | 4021 LINZ |
TOBIESON GUSTAF | 444 86 STENUNGSUND |
SARS WILHELMUS | TILBURG |
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