Title:
PHOSPHOROUS OLIGOMER, POLYESTER RESIN AND THERMOPLASTIC RESIN COMPOSITION COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/059059
Kind Code:
A1
Abstract:
The present invention provides: a phosphorous (P) oligomer; a novel polyester resin comprising a structural unit derived therefrom, and thus having excellent flame retardancy and a high degree of polymerization; a thermoplastic resin composition comprising the polyester resin; and a molded product using same. By synthesizing in a novel manner an oligomer of a predetermined structure containing phosphor (P) in place of a phosphorous flame retardant in a single compound form which does not participate in an existing polymerization reaction, and polymerizing polyester by means of same, the present invention not only improves the flame retardancy of the resin itself, but also adjusts the degree of polymerization to enhance the physical stability of a final polyester resin.
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Inventors:
IM SEOYOUNG (KR)
JANG HANBIT (KR)
LEE HOYONG (KR)
JANG HANBIT (KR)
LEE HOYONG (KR)
Application Number:
PCT/KR2022/014981
Publication Date:
April 13, 2023
Filing Date:
October 05, 2022
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08G63/692; C08J5/18; C08K5/5397; C08L67/02
Foreign References:
| KR20050100925A | 2005-10-20 | |||
| KR102163330B1 | 2020-10-08 | |||
| KR20090070314A | 2009-07-01 | |||
| KR19980079379A | 1998-11-25 | |||
| KR102285778B1 | 2021-08-03 |
Other References:
CAI CHANGCHEN, SUN QIAN, ZHANG KAI, BAI XIAOYU, LIU PENG, LI AIXIANG, LYU ZIJIAN, LI QIUHONG: "Flame‐retardant thermoplastic polyurethane based on reactive phosphonate polyol", FIRE AND MATERIALS, NEW YORK, NY, US, vol. 46, no. 1, 1 January 2022 (2022-01-01), US , pages 130 - 137, XP093055395, ISSN: 0308-0501, DOI: 10.1002/fam.2959
Attorney, Agent or Firm:
WETHEPEOPLE IP & LAW FIRM (KR)
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