Patent · US Expired

Process for the manufacture of pipe from composite materials based on epoxy resins and 1,7-bis-(1-(2'-aminoethyl)-1,3-diaza-2-cyclopenten-2-yl)heptane

US5106443A · kind A · utility

6Cited by

2References

5Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Christian Burba · Plön, DE
Herbert Franz · Hamm, DE
Alwin Krotzek · Werne, DE
Werner Mrotzek · Dortmund, DE

Key dates

Filing date	Apr 16, 1991
Grant date	Apr 21, 1992
Priority date	—
Expiry date	Apr 16, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G59/5073
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a process for the manufacture of pipe from composite materials for industrial and drinking water, produced by the filament-winding method from epoxy resins and 1,7-bis-[1-(2'-aminoethyl)-1,3-diaza-2-cyclopenten-2-yl]-heptane and/or 1,8-bis-[1-(2'-aminoethyl)-1,3-diaza-2-cyclopenten-2-yl]octane as curing agents and commonly used reinforcing materials.

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