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.:
Date of Patent:
May. 12, 2026
Filed:
Jul. 30, 2021
Organozinc compound preparation method, chain transfer agent, block copolymer, and resin composition
Lg Chem, Ltd., Seoul, KR;
Seok Pil Sa, Daejeon, KR;
Eun Ji Shin, Daejeon, KR;
Ki Soo Lee, Daejeon, KR;
Bun Yeoul Lee, Gyeonggi-do, KR;
Jong Chul Lee, Gyeonggi-do, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to a chain transfer agent including an organozinc compound, a preparation method thereof, and a method for preparing a block copolymer using the same. A chain transfer agent prepared by a preparation method including preparing a Grignard reagent containing styrene residues, and reacting the prepared Grignard reagent with alkyl zinc alkoxide, which is a zinc compound, has not catalyst poison and by-products, and contains 96 wt % or more of a target compound. A block copolymer polymerized using the chain transfer agent and a resin composition including the block copolymer have excellent mechanical properties.