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:
Jun. 02, 2020
Filed:
Jan. 29, 2016
Braskem America, Inc., Philadelphia, PA (US);
Kimberly Miller McLoughlin, Pittsburgh, PA (US);
William Scott Miller, Pittsburgh, PA (US);
Michael Robert Stephans, Pittsburgh, PA (US);
Steven Michael Krupinski, Pittsburgh, PA (US);
Braskem America, Inc., Philadelphia, PA (US);
Abstract
A foamable composition includes a semi-crystalline polyolefin having a crystallinity of at least 50% and a poly(sulfonyl azide) of at least 500 ppm based on the total weight of the foamable composition. The foamable composition has a melt strength of at least 20 cN, a melt drawability of at least 100 mm/s, flexural modulus is greater than about 240,000 psi. Such a composition can be used to make a low density foam having a density in the range from 0.005 g/cmto 0.6 g/cm. A resulting foam or a fabricated article, the methods of the composition and the foam are also provided.