Metal phosphonate flame retardant and method producing thereof

US8889773B2 · kind B2 · utility

Assignee

• ICL-IP America, Inc. · US

Inventors

• Joseph Zilberman · Haifa, IL
• Sergei V. Levchik · Croton-on-Hudson, US
• Andrew Gregor · Wingdale, US
• Pierre Georlette · Omer, IL
• Yoav Bar Yaakov · Nes Ziona, IL
• Gideon Shikolski · Kiryat Motzkin, IL

Key dates

• Filing date: Jun 21, 2011
• Grant date: Nov 18, 2014
• Expiry date: Jun 21, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

There is provided herein an aluminum methyl methylphosphonate in crystalline form wherein 90% of the aluminum methyl methylphoshponate has a particle size of less than 10 microns, and wherein the aluminum methyl methylphosphonate is obtained by the process of reacting aluminum hydroxide with dimethyl methylphosphonate in the presence of a catalyst.