Invention Grant
- Patent Title: Polypropylene laminate sheet
-
Application No.: US17271316Application Date: 2018-08-31
-
Publication No.: US11760057B2Publication Date: 2023-09-19
- Inventor: Stefan Ultsch , Yushan Hu , Jozef J.I. Van Dun , Ming Ming
- Applicant: Dow Global Technologies LLC
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Agency: Boyle Fredrickson, S.C.
- International Application: PCT/CN2018/103479 2018.08.31
- International Announcement: WO2020/042139A 2020.03.05
- Date entered country: 2021-02-25
- Main IPC: B32B5/24
- IPC: B32B5/24 ; C09J7/30 ; B32B5/02 ; B32B27/06 ; B32B27/32

Abstract:
The present disclosure provides a fabric laminate. In an embodiment, the fabric laminate includes a fabric sheet, a coating layer, and a tie layer. The fabric sheet is composed of propylene-based polymer fibers. The coating layer is composed of one or more ethylene-based polymers. The tie layer is located between the fabric sheet and the coating layer. The tie layer is composed of at least 50 wt % of a crystalline block composite (CBC) and an optional blend component. The CBC includes (i) an isotactic crystalline propylene homopolymer (iPP); (ii) an ethylene/propylene copolymer; and (iii) a diblock with the formula (EP)-(iPP). The CBC has a block composite index (CBCI) from 0.1 to 1.0. The fabric laminate has a peel force from 20 N/15 mm to 40 N/15 mm.
Public/Granted literature
- US20210252826A1 Polypropylene Laminate Sheet Public/Granted day:2021-08-19
Information query