Patent · US Active

System for producing a fully impregnated thermoplastic prepreg

US11091598B2 · kind B2 · utility

2Cited by

11References

19Claims

0Family size

Assignee

Johns Manville · US

Inventors

Mingfu Zhang · Highlands Ranch, US
Klaus Friedrich Gleich · Nuremberg, DE
Asheber Yohannes · Littleton, US
Michael John Block · Centennial, US
Jawed Asrar · Englewood, US
Derek Cooper Bristol · Littleton, US
Christopher P Sandoval · Littleton, US

Key dates

Filing date	May 13, 2020
Grant date	Aug 17, 2021
Priority date	—
Expiry date	May 13, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2377/02
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Fiber-containing polymethyl methacrylate (PMMA) prepregs are described that include a first and second plurality of fibers. The second plurality of fibers is made from a different material than the first plurality of fibers. The PMMA prepregs also contain a polymerized resin that includes polymethyl methacrylate that has been formed from a reactive resin composition that includes methyl methacrylate. Methods of making fiber-containing PMMA prepregs are also described.

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