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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 10808111 B1

PDFFull Text
Date of Patent:
Oct. 20, 2020

Filed:

Mar. 13, 2014

Polypropylene impact copolymers with low haze

Applicant:

Braskem America, Inc., Philadelphia, PA (US);

Inventors:

Peter Simon Dias, Malvern, PA (US);

Craig Charles Meverden, Wexford, PA (US);

Edward E. Catalina, Greensburg, PA (US);

Thomas Cuthbert, Houston, TX (US);

Rita Majewski, Pittsburgh, PA (US);

Debra R. Wilson, Houston, TX (US);

Assignee:

Braskem America, Inc., Philadelphia, PA (US);

Attorney:

Duane Morris LLP

Primary Examiner:

Lee E Sanderson

Int. Cl.
CPC ...
C08F 210/06 (2006.01); C08L 23/12 (2006.01); C08L 23/14 (2006.01); B29C 48/21 (2019.01); B32B 27/30 (2006.01); B32B 27/08 (2006.01); B32B 1/02 (2006.01); B32B 27/32 (2006.01); C08J 5/00 (2006.01); C08J 5/18 (2006.01); B29K 105/00 (2006.01); B29C 49/02 (2006.01); B29C 49/22 (2006.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
C08L 23/14 (2013.01); B29C 48/21 (2019.02); B32B 1/02 (2013.01); B32B 27/08 (2013.01); B32B 27/30 (2013.01); B32B 27/32 (2013.01); C08F 210/06 (2013.01); C08J 5/00 (2013.01); C08J 5/18 (2013.01); C08L 23/12 (2013.01); C08L 23/142 (2013.01); B29C 49/02 (2013.01); B29C 49/22 (2013.01); B29C 2049/028 (2013.01); B29K 2023/12 (2013.01); B29K 2105/258 (2013.01); B29K 2995/0026 (2013.01); B32B 2250/03 (2013.01); B32B 2250/242 (2013.01); B32B 2270/00 (2013.01); B32B 2307/412 (2013.01); B32B 2307/558 (2013.01); B32B 2439/02 (2013.01); C08J 2323/12 (2013.01); C08J 2323/14 (2013.01); C08J 2423/08 (2013.01); C08L 2203/10 (2013.01); C08L 2205/025 (2013.01); C08L 2207/02 (2013.01);
Abstract

The present invention provides an in-reactor solution that avoids costly blending and the use of metallocene elastomers. The inventive Ziegler-Natta polypropylene composition also includes additional components that may improve properties relative to a metallocene catalyzed elastomers. The invention is a clear impact polypropylene composition that is made in-reactor with Ziegler-Natta catalyst, and is suitable for a wide range of processes. Unlike other clear impact copolymers, it does not rely on high-shear processes or compounding with elastomers. The invention uses conventional polypropylene reactor technology to produce these compositions.

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