Patent · US Expired

Flat semi-finished product, component made therefrom and process for the production thereof

US6596369B2 · kind B2 · utility

3Cited by

4References

33Claims

0Family size

Assignee

SGL Carbon AG · DE

Inventors

Oswin Öttinger · Meitingen, DE
Manfred Jung · Bad Münstereifel, DE
Silvia Mechen · Meitingen, DE

Key dates

Filing date	Apr 19, 2001
Grant date	Jul 22, 2003
Priority date	—
Expiry date	Apr 26, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31544
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A flat semi-finished product includes a filled fluoroplastics substrate in the form of a sheet, which is coated at least partially on at least one surface with a soft, thin coating of fluoroplastics. The substrate material of the sheet has a Shore-D hardness of at least 65 and the average layer thickness of the thin sheet coating is at most 20 &mgr;m. A component, in particular a flat gasket, is made from the semi-finished product. A process for the production thereof is also provided.

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