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.

Date of Patent:
Jul. 15, 2014

Filed:

Dec. 04, 2009
Applicants:

Yong-jeon Kim, Daejeon, KR;

Jin-woo Lee, Daejeon, KR;

Churl-young Park, Daejeon, KR;

Nan-young Lee, Seoul, KR;

Ro-my Lee, Daejeon, KR;

Inventors:

Yong-jeon Kim, Daejeon, KR;

Jin-woo Lee, Daejeon, KR;

Churl-young Park, Daejeon, KR;

Nan-young Lee, Seoul, KR;

Ro-my Lee, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/00 (2006.01); C08L 23/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a polypropylene resin composition having excellent impact resistance, impact strength at low temperature and transparence comprising ethylene-alpha olefin copolymer (c) to a polypropylene resin composition in which the ratio of viscosity is regulated by adjusting molecular weight of propylene-alpha olefin random copolymer (a) and propylene-alpha olefin elastic copolymer (b), thereby regulating impact resistance and flexural modulus of the polypropylene resin composition and improving transparence; therefore, applying as various products including cold-storage containers for freezer and refrigerator, food packaging container, extrusion blow molding material, film, sheet and bottle cap, etc.


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