Patent · US Active

Method for producing solidified fiber bundles

US10449738B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

SGL CARBON SE · DE

Inventors

Rudi Beck · Lotus Pond, DE
Florian Gojny · Kelkheim, DE
Frank Kochems · Wertingen, DE
Konrad Maier · Bubesheim, DE

Key dates

Filing date	Apr 3, 2018
Grant date	Oct 22, 2019
Priority date	—
Expiry date	Apr 3, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2936
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for producing solidified fiber bundles includes applying a melt or solution to a carrier web forming a viscous coating, applying parallel filaments under tension to the carrier web, and pressing the filaments into the viscous coating, forming an impregnate. The coating is partially solidified until a plastically deformable state of the impregnate is obtained by vaporizing the solvent, thermal curing and/or cooling. The impregnate is rolled onto a winding core to form a roll while maintaining a winding tension of the filaments in the impregnate. The outer roll is fixed on the winding core by a sleeve and/or by adhesive tape. The impregnate is solidified by vaporizing the solvent, thermal curing and/or cooling. The solidified impregnate is divided up to form solidified fiber bundles. A pressure produced by the winding tension of the filaments in the impregnate is exerted on the roll.

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