Abstract: A low-corrosion fire-resistant thermoplastic resin composition comprising a thermoplastic resin, a phosphinic acid salt flame retardant, a reinforced glass fiber, and a rare earth metal salt corrosion inhibitor. The resin composition improves the corrosion resistance and mechanical performance of the metal to a great extent while maintaining the high flame resistance.
Type:
Grant
Filed:
November 20, 2015
Date of Patent:
November 21, 2017
Assignee:
Shanghai Huihai Chemical Technology Co., Ltd.
Abstract: A process for making an alkyl phosphinate polymer having a formula comprising mixing a phosphinic acid or an alkali metal salt of phosphinic acid, a molecular weight modifier, and a polar solvent to form a mixture, adding an alkyne to the mixture, stirring and adding a free radical initiator solution to the mixture, adding the alkyne until saturation, heating and cooling the mixture, and adding to a metallic compound or protonated nitrogen base. The alkyl phosphinate polymer has high heat resistance and is suitable for use in a flame-retardant composition and flame-retardant polymer molding composition.
Type:
Grant
Filed:
October 31, 2014
Date of Patent:
October 27, 2015
Assignee:
Shanghai Huihai Chemical Technology Co., Ltd.