Patent · US Active

Polyolefin-based microporous films via sequential cold and hot stretching of unannealed polypropylene copolymer films

US11674026B2 · kind B2 · utility

0Cited by
4References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 18, 2021
Grant dateJun 13, 2023
Priority date—
Expiry dateAug 4, 2041

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Microporous polymer films and methods of making same are disclosed. The microporous polymer film comprises:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.