Patent · US Expired

Method for producing individual polymer profiles by extruding interconnected polymer profiles and separating them

US5204035A · kind A · utility

6Cited by

8References

15Claims

0Family size

Assignees

Klaus Kleinhoff · DE
Carsten Boltze · US

Inventors

Carsten Boltze · Wennigsen (Deister), DE
Klaus Kleinhoff · Rodenberg, DE
Hendrik Stevens · Hannover, DE

Key dates

Filing date	Jan 17, 1992
Grant date	Apr 20, 1993
Priority date	—
Expiry date	Jan 17, 2012

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60S2001/3827
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for producing polymer profiles, having a varying thickness over their width and at least one longitudinal side tapering off to form a thin edge, includes of the following steps: Extruding simultaneously a plurality of the polymer profiles through a common die such that the thin edge of each one of the polymer profiles is connected to the thin edge of at least the neighboring one of the polymer profiles to form an interconnected extrudate; in a cross-section of the interconnected extrudate, providing an angle of between 45.degree. and 135.degree. between angle bisectors of neighboring ones of the polymer profiles; and separating the polymer profiles from one another after the step of extrusion.

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