Flame-retardant thermoplastic material and expanded beads thereof

US10662308B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Peng Guo · Natick, US
• Mingfu Lyu · Beijing, CN
• Yaohui Xu · Beijing, CN
• Shijun Zhang · Beijing, CN
• Hui QUAN · Beijing, CN
• Kai Xu · Tempe, US
• Fuyong Bi · Beijing, CN
• Wenbo Song · Beijing, CN

Key dates

• Filing date: Apr 28, 2017
• Grant date: May 26, 2020
• Expiry date: Jul 7, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/54
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a flame-retardant thermoplastic material, comprising thermoplastic base resin, a flame retardant, and an optional antioxidant, wherein the flame retardant comprises a complex of phosphine oxide and a transition metal salt. The invention also relates to flame-retardant thermoplastic expanded beads. A foam molding prepared from the flame-retardant thermoplastic expanded beads has good flame-retardant and antistatic properties, has excellent mechanical properties and is widely used.