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:
Dec. 16, 2025
Filed:
May. 10, 2021
Applicant:
Teknologian Tutkimuskeskus Vtt Oy, Espoo, FI;
Inventors:
Pia Willberg-Keyriläinen, Espoo, FI;
Jarmo Ropponen, Espoo, FI;
Tero Malm, Espoo, FI;
Teijo Rokkonen, Espoo, FI;
Hannu Minkkinen, Espoo, FI;
Ali Harlin, Espoo, FI;
Assignee:
Teknologian tutkimuskeskus VTT Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/00 (2006.01); B29C 44/20 (2006.01); B29C 44/34 (2006.01); B29K 1/00 (2006.01); C08J 9/14 (2006.01);
U.S. Cl.
CPC ...
C08J 9/0066 (2013.01); C08J 9/141 (2013.01); B29C 44/20 (2013.01); B29C 44/3442 (2013.01); B29C 44/3446 (2013.01); B29K 2001/08 (2013.01); C08J 2201/03 (2013.01); C08J 2203/06 (2013.01); C08J 2203/14 (2013.01); C08J 2301/10 (2013.01); C08J 2301/26 (2013.01);
Abstract
According to an example aspect of the present invention, there is provided an extrusion foaming method for producing low-density extrusion foam from a thermoplastic cellulose-based starting material.