Patent · US Expired

Polymer material for medical instruments and method for production of the polymer material

US5735830A · kind A · utility

12Cited by

4References

16Claims

0Family size

Assignee

WILLY RUSCH GmbH · DE

Inventors

Hans-Gerhard Fritz · Uhingen, DE
Rainer Anderlik · Heidelberg, DE
Armin Singvogel · Waiblingen, DE
Michael Heider · Eisenlohrsweg, AT

Key dates

Filing date	Jul 11, 1996
Grant date	Apr 7, 1998
Priority date	—
Expiry date	Jul 11, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2312/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polymer material (6) is formed from a first polyethylene component (1) having a low density (VLDPE) which is silane-grafted with an organic silane (3) in combination with organic peroxide (4) and is cross-linked through storage in a damp environment and/or in water. The polymer material (6) can be processed into medical instruments under dry conditions prior to cross-linkage. After cross-linkage the medical instruments made from the polymer material (6) exhibit a high degree of transparency, are non-buckling and flexible. The polymer material (6) is produced in an extruder, preferentially in a double-worm extruder.

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