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:
May. 09, 2017
Filed:
Mar. 11, 2014
Applicant:
Sonoco Development, Inc., Hartsville, SC (US);
Inventors:
Ajit Ranade, Naperville, IL (US);
Kate Piscopo, Bedford, NH (US);
Assignee:
Sonoco Development, Inc., Hartsville, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/33 (2006.01); B29B 17/00 (2006.01); B29C 67/20 (2006.01); B29C 43/02 (2006.01); B29C 44/44 (2006.01); B29C 35/04 (2006.01); C08J 9/236 (2006.01); B29C 35/16 (2006.01); B29K 105/04 (2006.01); B29K 25/00 (2006.01); B29K 105/26 (2006.01);
U.S. Cl.
CPC ...
B29C 35/049 (2013.01); B29B 17/0036 (2013.01); B29C 35/16 (2013.01); B29C 67/20 (2013.01); C08J 9/236 (2013.01); C08J 9/33 (2013.01); B29C 2035/1616 (2013.01); B29K 2025/06 (2013.01); B29K 2105/048 (2013.01); B29K 2105/26 (2013.01); C08J 2300/30 (2013.01); C08J 2323/06 (2013.01); C08J 2325/06 (2013.01); Y02W 30/62 (2015.05);
Abstract
A method is provided of molding recycled EPS and other suitable expanded bead materials using a powder adhesive and steam. The method allows for molding EPS parts with over 5% and up to 100% recycled content. The method involves using an adhesive to fuse the regrind EPS particles under pressure from steam. The adhesive may be in powder form and preferably comprises small particles having a high surface area per unit weight and high static so the adhesive powder sticks to the surface of the regrind EPS particles during a dry blending step.