The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1981
Filed:
Aug. 14, 1979
Per L Wolff, Birkerod, DK;
Koninklijke Emballage Industrie Van Leer B.V., Amstelveen, NL;
Abstract
An improved process for the production of thermoset foams having a predetermined shape by subjecting a reactive amine to a condensation reaction in an enclosed mould cavity, wherein the reaction is carried out under conditions whereby by-product water found during the reaction is substantially free to move out into a space adjacent to and in communication with said foam, and controlling the temperature and care of said foam by regulation of the web bulb temperature of the gaseous mass inside said space. Foam products made in accordance with the process of the invention, e.g. urea-formaldehyde furfuryl alcohol-based insulating foams, are also claimed.