Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for producing uncrosslinked polypropylene-based resin foam sheets and uncrosslinked polypropylene-based resin foam sheets

Process for producing uncrosslinked polypropylene-based resin foam sheets and uncrosslinked polypropylene-based resin foam sheets

US Patent 6290884 · Granted Sep 18, 2001

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Separator film conveyance device for nonaqueous electrolytic-solution secondary 2022
Film roll and method for producing film roll2019
Film winding device control method, film roll, film winding device, and film rol2019
Cervical orthosis2018
Polymer composition and molded articles shaped of the same2015
Resin composition for press foaming, foam and process for producing the foam2011
Ethylene-α-olefin copolymer2008
Ethylene-alpha-olefin copolymer2008
Methods for producing multi-layer foamed sheets2005
Methods for producing multi-layer foamed sheets2005
Indicator2004
Foamed thermoplastic resin sheet and manufacturing method of the same2004