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:
Oct. 09, 2018
Filed:
Apr. 18, 2017
Samhwa Paints Industries Co., Ltd., Ansan-si, Gyeonggi-do, KR;
Myeng Chan Hong, Pyeongtaek-si, KR;
Young Seop Choi, Ansan-si, KR;
Seung Hun Lee, Yonginsi, KR;
Da Eun Kwon, Gunpo-si, KR;
So Hyun Jang, Ansan-si, KR;
June Hyeop An, Ansan-si, KR;
Chong Yun Kwag, Jongno-gu, KR;
SAMHWA PAINTS INDUSTRIES CO., LTD., Ansan-Si, Gyeonggi-Do, KR;
Abstract
The present invention relates to a method for preparing a spiro quaternary ammonium salt comprising reacting a cyclic secondary amine with a dihaloalkane in the presence of a basic resin. According to the preparation method of the present invention, a metal salt and halide ion are removed by filtration without any additional purification process, the spiro ammonium derivative compound can be obtained with high yield, and the resin can be reused through a simple treatment process.