Title:
PBT COMPOSITION, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/174284
Kind Code:
A1
Abstract:
Disclosed in the present invention are a PBT composition, a preparation method therefor and the use thereof. The PBT composition of the present invention comprises the following components in parts by weight: 35-45 parts of PBT resin, 10-20 parts of PC resin, 25-40 parts of brominated PC, 5-15 parts of a toughening agent and 0.1-0.3 part of an ester exchange inhibitor, wherein the brominated PC is a random copolymer of triphosgene, tetrabromobisphenol A and bisphenol A, the intrinsic viscosity of the PBT resin is 0.8-1.2 dl/g, and the melt index of the PC resin ≤ 10 g/10min, the melt index being tested under the condition of 300 ℃/1.2kg according to the ASTM D1238 standard. The PBT composition of the present invention has a notched cantilever beam impact resistance (type A) of 500 J/m or above, a molding shrinkage rate of 1% or above and a maximum covered bolt torque value of 27 N·m or above, and therefore is suitable for manufacturing an embedded bolt insert.
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Inventors:
YAO HUAXIA (CN)
CHEN PINGXU (CN)
YE NANBIAO (CN)
LU LIBO (CN)
FU XUEJUN (CN)
CHEN PINGXU (CN)
YE NANBIAO (CN)
LU LIBO (CN)
FU XUEJUN (CN)
Application Number:
PCT/CN2023/081368
Publication Date:
September 21, 2023
Filing Date:
March 14, 2023
Export Citation:
Assignee:
JIANGSU KINGFA SCI & TECH ADV MAT CO LTD (CN)
SHANGHAI KINGFA SCI & TECH DVPT CO LTD (CN)
SHANGHAI KINGFA SCI & TECH DVPT CO LTD (CN)
International Classes:
C08L67/02; C08G64/10; C08G64/24; C08K3/32; C08L23/08; C08L33/10; C08L69/00
Foreign References:
| CN114591607A | 2022-06-07 | |||
| US5252653A | 1993-10-12 | |||
| CN101205295A | 2008-06-25 | |||
| CN108912616A | 2018-11-30 | |||
| CN110066504A | 2019-07-30 | |||
| CN113999498A | 2022-02-01 | |||
| JP2002047400A | 2002-02-12 |
Other References:
SATO, H. KONDO, K. TSUGE, S. OHTANI, H. SATO, N.: "Mechanisms of thermal degradation of a polyester flame-retarded with antimony oxide/brominated polycarbonate studied by temperature-programmed analytical pyrolysis", POLYMER DEGRADATION AND STABILITY, BARKING, GB, vol. 62, no. 1, 1 October 1998 (1998-10-01), GB , pages 41 - 48, XP004294515, ISSN: 0141-3910, DOI: 10.1016/S0141-3910(97)00259-0
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM et al. (CN)
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