Invention Publication
- Patent Title: POLYPROPYLENE COMPOSITION CONTAINING A NEW CHARGE-STABILIZING AGENT FOR ELECTRET MELT BLOWN WEBS
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Application No.: US18260504Application Date: 2022-01-21
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Publication No.: US20240084103A1Publication Date: 2024-03-14
- Inventor: Jingbo Wang , Markus Gahleitner , Klaus Bernreitner , Joachim Fiebig , Henk Van Paridon , Wilhelmus Sars , Gustaf Tobieson , Pauli Leskinen
- Applicant: BOREALIS AG
- Applicant Address: AT Vienna
- Assignee: BOREALIS AG
- Current Assignee: BOREALIS AG
- Current Assignee Address: AT Vienna
- Priority: EP 152814.6 2021.01.21
- International Application: PCT/EP2022/051357 2022.01.21
- Date entered country: 2023-07-06
- Main IPC: C08K5/3435
- IPC: C08K5/3435 ; B01D39/16 ; D01F1/10 ; D01F6/06 ; D04H1/4291 ; D04H1/56 ; D04H3/16 ; D06M10/00

Abstract:
A polypropylene composition (PC) comprising: a. from 95.0 to 99.99 wt.-%, of a polypropylene (PP), preferably a propylene homopolymer (HPP); and b. from 0.01 to 5.0 wt.-%, of a compound according to Formula (I), wherein each R is independently selected from C1 to C6 alkylene, C2 to C6 alkenylene and a single bond, each R′ is independently selected from H and C1 to C6 alkyl, each R″ is independently selected from H and C1 to C22 alkyl, wherein each alkylene, alkenylene and alkyl group may optionally be substituted by deuterium or fluorine, and the two substituents on the central benzene ring may be either positioned in an ortho, meta or para relationship; wherein the polypropylene composition (PC) has an MFR2 of from 400 to 5000 g/10 min and a melting temperature Tm of from 140 to 170° C.
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