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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 11198241 B1

PDFFull Text
Date of Patent:
Dec. 14, 2021

Filed:

Nov. 13, 2018

Mineral-filled polymer articles and methods of forming same

Applicant:

Pactiv Llc, Lake Forest, IL (US);

Inventors:

William Patchen, Farmington, NY (US);

Ming Ho, Fairport, NY (US);

Assignee:

PACTIV LLC, Lake Forest, IL (US);

Attorney:

Baker Botts L.L.P.

Primary Examiner:

Atul P Khare

Int. Cl.
CPC ...
B29C 51/02 (2006.01); B29C 45/73 (2006.01); B29C 48/00 (2019.01); C08L 67/02 (2006.01); C08K 3/34 (2006.01); B29C 51/42 (2006.01); B29C 45/00 (2006.01); B29C 51/00 (2006.01); C08L 23/08 (2006.01); B29L 31/00 (2006.01); B29K 67/00 (2006.01); B29K 105/16 (2006.01);
U.S. Cl.
CPC ...
B29C 48/0017 (2019.02); B29C 45/0001 (2013.01); B29C 45/73 (2013.01); B29C 51/002 (2013.01); B29C 51/02 (2013.01); B29C 51/428 (2013.01); C08K 3/34 (2013.01); C08L 67/02 (2013.01); B29K 2067/00 (2013.01); B29K 2067/003 (2013.01); B29K 2105/16 (2013.01); B29L 2031/7132 (2013.01); C08L 23/0869 (2013.01);
Abstract

Mineral-filled polymer compositions and methods of forming such polymer compositions into a thermally stable article are provided. Methods of forming a polymeric article include providing a polymer composition comprising a crystallizable polymer, a mineral filler in an amount of more than about 15 wt-% based on the total weight of the polymer composition, and an impact modifier, wherein the polymer composition is at a temperature less than a crystallization temperature of the crystallizable polymer. The methods further include disposing the polymer composition in a mold, forming the polymer composition into an article within the mold, and releasing the article from the mold. The methods can include thermoforming the polymer composition in a mold, or injection molding the polymer composition in a molten form in a mold.

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