IP Library Granted Patent US 9,012,548
Granted Patent B2
US 9,012,548 · App. 13/261,805 · Granted Apr 21, 2015

Polypropylene resin composition, polyolefin resin composition containing polypropylene resin composition, and molded article of polyolefin resin composition

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Quick Facts
Patent No.
US 9,012,548
App. No.
13/261,805
Granted
Apr 21, 2015
Kind
B2
Abstract

An object of the present invention is to provide a polypropylene resin composition that is blended in a polyolefin resin to improve its surface characteristics and impart sustained water repellency and yet is low in aggregates so as not to deteriorate the visual appearance, a polyolefin resin composition containing the polypropylene resin composition, and a molded article of the polyolefin resin composition. A composition that achieves the object is a polypropylene resin composition obtained by heating and kneading a material containing (A) a polypropylene resin, (B) a polypropylene wax, (C) a polyorganosiloxane containing at least one silicon-atom-bonded alkenyl group in each molecule, and (D) an organic peroxide.

Claims (3)

1. A polypropylene resin composition obtained by heating and kneading a material containing (A) a polypropylene resin, (B) a polypropylene wax, (C) a polyorganosiloxane containing at least one silicon-atom-bonded alkenyl group in each molecule, and (D) an organic peroxide, the polyorganosiloxane being chemically bonded and grafted to the polypropylene resin and to the polypropylene wax.

2. A polyolefin resin composition containing the polypropylene resin composition according to claim 1 .

3. A molded article obtained by molding the polyolefin resin composition according to claim 2 .

Assignments (2)
CHANGE OF APPLICANT'S ADDRESS Recorded Dec 30, 2020
From: RIKEN VITAMIN CO., LTD.
To: RIKEN VITAMIN CO., LTD.
Reel/Frame 054870/0855 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2015
From: INAGAKI, KEISUKE; YOSHIKAWA, KIMIO
To: RIKEN VITAMIN CO., LTD.
Reel/Frame 035150/0678 →