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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.:

US 9919491 B1

PDFFull Text
Date of Patent:
Mar. 20, 2018

Filed:

Feb. 03, 2015

Leisure articles and cars prepared by multilayer rotational moulding

Applicant:

Total Research & Technology Feluy, Seneffe (Feluy), BE;

Inventor:

Eric Maziers, Feluy, BE;

Assignee:

TOTAL RESEARCH & TECHNOLOGY FELUY, Seneffe, BE;

Attorney:

Albert Shung

Primary Examiner:

Michael C Miggins

Int. Cl.
CPC ...
B32B 5/20 (2006.01); B32B 27/32 (2006.01); B32B 27/06 (2006.01); B32B 27/18 (2006.01); B32B 27/30 (2006.01); B32B 27/34 (2006.01); B32B 1/02 (2006.01);
U.S. Cl.
CPC ...
B32B 5/20 (2013.01); B32B 1/02 (2013.01); B32B 27/065 (2013.01); B32B 27/18 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/327 (2013.01); B32B 27/34 (2013.01); B32B 2266/02 (2013.01); B32B 2266/025 (2013.01); B32B 2266/0242 (2013.01); B32B 2270/00 (2013.01); B32B 2307/102 (2013.01); B32B 2307/30 (2013.01); B32B 2307/304 (2013.01); B32B 2307/50 (2013.01); B32B 2307/54 (2013.01); B32B 2307/546 (2013.01); B32B 2307/558 (2013.01); B32B 2307/72 (2013.01); B32B 2307/7242 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/734 (2013.01); B32B 2323/04 (2013.01); B32B 2439/00 (2013.01); B32B 2605/003 (2013.01); B32B 2605/08 (2013.01); B32B 2605/12 (2013.01); Y10T 428/1376 (2015.01);
Abstract

Multilayer articles having reinforced structural properties are prepared by rotational molding of external and internal skin layers prepared from polyethylene resin and an intermediate layer prepared from foamed polyethylene. The composition of the external layer is fed as a dry blend into a mold, and the mold is placed in a pre-heated oven and rotated. The composition of the intermediate layer is fed as a dry blend into the mold, and the mold is placed in a pre-heated oven and rotated. The composition of the internal layer is fed as a dry blend into the mold, and the mold is placed in a pre-heated oven and rotated.

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