Abstract: The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. Specifically, the thermoplastic resin composition includes a polypropylene composite resin including high-crystalline polypropylene and the like, an elastomer, and an inorganic filler.
Type:
Grant
Filed:
July 6, 2022
Date of Patent:
January 30, 2024
Assignees:
HYUNDAI MOTOR COMPANY, KIA CORPORATION, HDC HYUNDAI ENGINEERING PLASTICS CO., LTD.
Inventors:
Jin Young Yoon, Hee Joon Lee, Dong Eun Cha, Sun Jun Kwon, Chun Ho Park, Seung Ryong Jeong, Jin Bo Chae
Abstract: A polypropylene resin composition may include an amount of 40 to 60 wt % of a polypropylene resin, an amount of 1 to 10 wt % of a polyethylene resin, an amount of 10 to 20 wt % of an olefin elastomer, and an amount of 1 to 20 wt % of a reinforcing material wherein all the wt % are based on the total weight of the polypropylene resin composition. Accordingly, a high gloss may be obtained without a coating process and moldability of the polypropylene resin may be obtained. Further provided is a molded article of an interior material or an exterior material of a vehicle manufactured by using the polypropylene resin composition.
Type:
Grant
Filed:
August 12, 2018
Date of Patent:
August 25, 2020
Assignees:
Hyundai Motor Company, Kia Motors Corporation, Hyundai Engineering Plastics Co., Ltd.
Inventors:
Kyeong Hoon Jang, Dae Sik Kim, Jaehyun An, Seul Yi, In Soo Han, Eun Seob Shin, Beom Ho Kim, Hyeok Lee
Abstract: Provided is a polypropylene resin composition. The polypropylene resin composition includes: from about 20 to about 80 parts by weight of a polypropylene resin; from about 1 to about 35 parts by weight of an amine-based kenaf master batch; and from about 1 to about 25 parts by weight of a vinyl-based acetal compatibilizer. Also disclosed is the polypropylene resin composition which is used for vehicle interior and exterior materials, thereby improving physical properties such as low-temperature properties and tensile strength and providing superior resistance against damages.
Type:
Grant
Filed:
November 29, 2014
Date of Patent:
November 22, 2016
Assignees:
Hyundai Motor Company, Hyundai Engineering Plastics Co., Ltd.
Inventors:
Oh-Deok Kwon, Dae-Sik Kim, Beom-Ho Kim, Hyeong-Geun Oh, Tae-Hyung Kim
Abstract: According to preferred aspects, the present invention provides a polypropylene resin composition for creating a fabric texture, the polypropylene resin composition comprising: a polypropylene resin containing at least two selected from the group consisting of a homopolypropylene, a propylene-ethylene copolymer, and a high crystalline polypropylene (HCPP); a polypropylene elastomer; an ethylene-?-olefin copolymer; an inorganic filler; a cellulose fiber; and a volcanic rock. A molded product prepared using the polypropylene resin composition of the present invention has matt properties, do not cause odor due to their excellent VOC adsorption capabilities, and have excellent properties such as low temperature impact resistance, scratch resistance, etc.
Type:
Grant
Filed:
September 27, 2010
Date of Patent:
February 5, 2013
Assignees:
Hyundai Motor Company, Kia Motors Corporation, Hyundai Engineering Plastics Co., Ltd.
Inventors:
Jung Gyun Noh, Dae Sik Kim, Kyeong Hoon Jang, Byung-Woo Ahn, Jeong-Yeol Yu
Abstract: According to preferred aspects, the present invention provides a polypropylene resin composition for creating a fabric texture, the polypropylene resin composition comprising: a polypropylene resin containing at least two selected from the group consisting of a homopolypropylene, a propylene-ethylene copolymer, and a high crystalline polypropylene (HCPP); a polypropylene elastomer; an ethylene-?-olefin copolymer; an inorganic filler; a cellulose fiber; and a volcanic rock. A molded product prepared using the polypropylene resin composition of the present invention has matt properties, do not cause odor due to their excellent VOC adsorption capabilities, and have excellent properties such as low temperature impact resistance, scratch resistance, etc.
Type:
Application
Filed:
September 27, 2010
Publication date:
June 2, 2011
Applicants:
HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HYUNDAI ENGINEERING PLASTICS CO., LTD.
Inventors:
Jung Gyun Noh, Dae Sik Kim, Kyeong Hoon Jang, Byung-Woo Ahn, Jeong-Yeol Yu
Abstract: Disclosed is a thermoplastic elastomer composition comprising 100 parts by weight of EPDM rubber, 5-1,000 parts by weight of styrenic thermoplastic elastomer, 50-3,000 parts by weight of paraffin oil, 10-200 parts by weight of a polyolefin resin as a curative, 1-15 parts by weight of a phenolic resin, and 0.5-5 parts by weight of a curing activator. The composition is superior in flowability, mechanical properties and oil resistance as well as being low in hardness, so that it can be applied for automobile parts.
Type:
Grant
Filed:
July 28, 2004
Date of Patent:
April 14, 2009
Assignee:
Hyundai Engineering Plastics Co., Ltd.
Inventors:
Hae-Won Lee, Young-Keun Lee, Hwan-Kyu Jung, Tae-Won Park