Abstract: The present disclosure relates to a thermoplastic polyurethane composition for injection molding and a method for manufacturing the same. Specifically, the thermoplastic polyurethane composition includes 0.5% by weight to 10.0% by weight of a sulfonate diol, 13% by weight to 60% by weight of an isocyanate, 30% by weight to 70% by weight of an ether-containing polyester polyol, and 5% by weight to 40% by weight of a chain extender.
Type:
Application
Filed:
April 17, 2023
Publication date:
April 25, 2024
Applicants:
HYUNDAI MOTOR COMPANY, KIA CORPORATION, DONGSUNG CHEMICAL Co., Ltd., HANWHA ADVANCED MATERIALS CORPORATION
Inventors:
Boo Youn An, In Soo Han, Sang Hyuk Lee, Jae Chan Lee, Hoon Jeong Kim, Gyu Min Lee, Sung Bok Kwak, Dong Ju Lee, Jae Yong Lee
Abstract: The present invention relates to a thermoplastic polyurethane composition for a vehicle interior surface material and a method for manufacturing the same, where the thermoplastic polyurethane composition for a vehicle interior surface material may be manufactured into a vehicle interior surface material that has excellent processing workability such as demolding properties, has a short molding process time, and has excellent scratch resistance, life-scratch resistance (nail), whitening resistance (non-blooming performance), abrasion resistance, appearance quality, moldability, and durability.
Type:
Application
Filed:
March 19, 2020
Publication date:
June 30, 2022
Applicant:
DONGSUNG CHEMICAL Co., Ltd.
Inventors:
Daeyoung KWON, Jaerok PARK, Jaechan LEE, Minkon KIM
Abstract: Provided is an aqueous polyurethane emulsion composition having a urethane-urea bond, which is obtained by reacting a polyisocyanate, a polyester polyol and an ionic compound to prepare a polyurethane prepolymer, neutralizing it with an alkali or trialkylamine, dispersing it in water and reacting it with an amine, which is a chain extender. Polyurethane gloves manufactured with the aqueous polyurethane emulsion composition of the present invention have superior antistatic property, which is maintained even after washing, and wearing comfort similar to that of gloves made of natural latex and do not cause allergic reactions.
Type:
Grant
Filed:
June 16, 2005
Date of Patent:
September 13, 2011
Assignee:
Dongsung Chemical Co., Ltd.
Inventors:
Jin-suk Choi, Jin-hong Kim, Gook-hee Kim, Jum-kyun Lee, Myung-chul Jung
Abstract: This invention relates to a process for manufacturing a charging roller used in an image formation device according to the method of electrophotography; and more particularly, to a process for forming the surface layer with uniform resistivity on the surface of the charging roller coated with certain soluble conductive agent, thus ensuring better charging effects.