Invention Grant
- Patent Title: Calcium carbonate as cavitation agent for biaxially oriented polypropylene films
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Application No.: US16306268Application Date: 2017-07-17
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Publication No.: US11746196B2Publication Date: 2023-09-05
- Inventor: Martin Brunner , Christoph Hirsiger , Pierre Blanchard , Christophe René Pierre Roux
- Applicant: Omya International AG
- Applicant Address: CH Oftringen
- Assignee: Omya International AG
- Current Assignee: Omya International AG
- Current Assignee Address: CH Oftringen
- Agency: ALGM LLP
- Agent Harry J. Guttman
- Priority: EP 180663 2016.07.21
- International Application: PCT/EP2017/068023 2017.07.17
- International Announcement: WO2018/015341A 2018.01.25
- Date entered country: 2018-11-30
- Main IPC: C08J5/18
- IPC: C08J5/18 ; C08K3/26 ; C08K9/04 ; B32B27/20 ; B29C48/08 ; B29C48/00 ; C08F110/06 ; C08J3/22 ; C08K9/08 ; B29K23/00 ; B29K105/04 ; B29K105/16 ; B29K509/00
Abstract:
The present invention relates to a mono or multi-layer biaxially oriented polypropylene film having a density of ≤0.72 g/cm3, a process for producing the mono or multi-layer biaxially oriented polypropylene film, the use of at least one natural calcium carbonate as cavitation agent in the mono or multi-layer biaxially oriented polypropylene film, an article comprising the mono or multi-layer biaxially oriented polypropylene film as well as the uses.
Public/Granted literature
- US20190218352A1 CALCIUM CARBONATE AS CAVITATION AGENT FOR BIAXIALLY ORIENTED POLYPROPYLENE FILMS Public/Granted day:2019-07-18
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