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. 27, 2017
Filed:
Sep. 02, 2014
Cork Supply Portugal, S.a., São Paio de Oleiros, PT;
Instituto Superior Técnico, Lisbon, PT;
João Carlos Moura Bordado, Lisbon, PT;
Elisabete Ribeiro Silva, Lisbon, PT;
Rui Miguel Galhano Dos Santos Lopes, Lisbon, PT;
Maria Margarida Pires Dos Santos Mateus, Lisbon, PT;
Ana Cristina De Avelar Lopes Cardoso Mesquita, S. Paio de Oleiros, PT;
Maria Do Rosário Melo Costa, S. Paio de Oleiros, PT;
CORK SUPPLY PORTUGAL, S.A., Sao Paio de Oleiros, PT;
INSTITUTO SUPERIOR TÉCNICO, Lisbon, PT;
Abstract
The present invention is related to a new method to produce natural water-based glues made of two components, designed to glue lignocellulosic surfaces, mainly cork and wood. The mentioned process comprises the extraction of the aqueous phase of a mixture resulting from liquefying cork dust and/or cork granules, process that is commonly referred to as depolimerization process of cork; evaporation of the aqueous phase, therefore obtaining a first component consisting of a gel composed by the soluble components of the liquefying mixture; mixing and homogenizing of this gel with the second component that consists of a curing aliphatic compound; and, optionally, addition and mixture to 'cork dust' to the previously mentioned mix.