Process and device for producing plastic moldings from a flowable reaction mixture

Polyurethane molded articles are produced from a flowable polyolpolyisocyanate reaction mixture on a shot-wise basis. The flowable reaction mixture is formed by combining the components of that mixture in the mixing chamber of a mixhead. The contents of the mixhead are introduced (preferably via an...

Full description

Saved in:
Bibliographic Details
Main Authors Sulzbach, Hans-Michael, Raffel, Reiner, Duschanek, Helmut
Format Patent
LanguageEnglish
Published 07.03.2002
Online AccessGet full text

Cover

More Information
Summary:Polyurethane molded articles are produced from a flowable polyolpolyisocyanate reaction mixture on a shot-wise basis. The flowable reaction mixture is formed by combining the components of that mixture in the mixing chamber of a mixhead. The contents of the mixhead are introduced (preferably via an outlet pipe) into a mold in a manner such that the mixing chamber is substantially emptied in each case. Any ambient gas in the mixing chamber is then removed before the respective next shot is initiated.