Invention Grant
- Patent Title: Method of forming melt-blown non-wovens
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Application No.: US16658366Application Date: 2019-10-21
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Publication No.: US10982022B2Publication Date: 2021-04-20
- Inventor: Joachim Fiebig , Henk Van Paridon , Jingbo Wang , Markus Gahleitner
- Applicant: BOREALIS AG
- Applicant Address: AT Vienna
- Assignee: BOREALIS AG
- Current Assignee: BOREALIS AG
- Current Assignee Address: AT Vienna
- Agency: Lowenstein Sandler LLP
- Priority: EP14197888 20141215
- Main IPC: C08F8/06
- IPC: C08F8/06 ; C08F8/32 ; C08F110/06 ; C08J3/22 ; C08K5/1575 ; C08K5/17 ; C08K5/357 ; C08L23/10 ; C08L23/12 ; C08L23/14 ; D01F6/06 ; C08F8/50 ; C08K5/3435 ; D01D5/088 ; D01D5/08 ; D01D5/098 ; D04H3/007 ; C08K5/14 ; D01D1/02 ; B29K23/00 ; B29L31/00
Abstract:
Synergistic visbreaking composition of peroxide and a hydroxylamine ester for increasing the visbreaking efficiency for polypropylene polymers at melt extrusion temperatures below 250° C. and its use in visbreaking polypropylene. The present invention is furthermore related to the use of such visbroken polypropylene polymers for producing melt blown non-wovens with improved barrier properties.
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