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:
Oct. 22, 2019
Filed:
Oct. 09, 2014
Teknologian Tutkimuskeskus Vtt Oy, Espoo, FI;
Antti Ojala, Tampere, FI;
Kalle Nättinen, Tampere, FI;
Lisa Wikström, Tampere, FI;
Hannu Minkkinen, Espoo, FI;
Petri Jetsu, Espoo, FI;
Jani Lehmonen, Jyväskylä, FI;
Karita Kinnunen, Espoo, FI;
Tuomo Hjelt, Espoo, FI;
Teknologian tutkimuskeskus VTT Oy, Espoo, FI;
Abstract
The present invention concerns a process for producing a thermoformable porous web using a mixture of cellulosic fibers and one or more thermoplastic materials, particularly by foam forming said mixture into a composite foam, and applying the foam into one or more layers on a support to obtain a porous pre-form web. The thus produced porous composite web can be further processed by compression molding to give a rigid high-strength composite structure, which is suitable for use in producing, e.g. panels or plates, packages or hygiene products, insulators or filters, or printed intelligence, electronics or microcellulose products.