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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 9580586 B1

PDFFull Text
Date of Patent:
Feb. 28, 2017

Filed:

Jun. 11, 2014

Polypropylene compounds with enhanced haptics

Applicant:

Asahi Kasei Plastics North America, Inc., Fowlerville, MI (US);

Inventors:

Katherine M. Shipley, Mason, MI (US);

Sameer G. Mehta, Novi, MI (US);

Vaibhav Vishnu Apte, Farmington Hills, MI (US);

Laura Therese Shereda, Livonia, MI (US);

Assignee:

ASAHI KASEI PLASTICS NORTH AMERICA, INC., Fowlerville, MI (US);

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

James J Seidleck

Assistant Examiner:

Deve E Valdez

Int. Cl.
CPC ...
B01J 19/20 (2006.01); C08L 23/16 (2006.01); C08L 53/02 (2006.01); C08L 53/00 (2006.01); C08L 23/06 (2006.01); C08K 3/40 (2006.01); C08K 7/02 (2006.01);
U.S. Cl.
CPC ...
C08L 23/16 (2013.01); C08L 23/06 (2013.01); C08L 53/00 (2013.01); C08L 53/025 (2013.01); C08K 3/40 (2013.01); C08K 7/02 (2013.01);
Abstract

A polymeric composition is a blend of one or more heterophasic copolymers of propylene and ethylene produced by a multistep polymerization, wherein the heterophasic copolymers comprise a low crystalline matrix component and a soft amorphous elastomeric component, in which both the matrix component and the soft amorphous elastomeric component contain greater than 55% by weight propylene; one or more additional elastomeric components selected from the group of an ethylene/α-olefin C-Ccopolymer with a total ethylene concentration of greater than or equal to 65% by weight; and a propylene/α-olefin C, C-Ccopolymer with a total propylene concentration of greater than or equal to 65% by weight; 5-65% by weight of the total composition of one or more inorganic or organic reinforcement materials; and 0.01-4% by weight of the total composition of a maleic anhydride grafted polypropylene compatibilizer or coupling agent. The polymeric composition has a low crystallinity of less than 30 J/gram measured by DSC. The total elastomer content of the polymeric composition is greater than 50% by weight, and the overall polymeric composition has an ethylene concentration of greater than 10% by weight.

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