MUMBAI, India, March 14 -- Intellectual Property India has published a patent application (202617004415 A) filed by Mitsui Chemicals, Inc., Tokyo, on Jan. 16, for 'method for preparing a polyallyl-functional prepolymer composition, and method for manufacturing an optical article wherein said prepolymer composition is used.'
Inventor(s) include Vecchione, Andrea; Forestieri, Roberto; and Mariani, Francesco.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a method for preparing a polyallyl-functional prepolymer composition comprising: (a) providing a reaction mixture comprising: - at least one polyallyl-functional monomer; - from 0.5 to 3.0 wt.% of at least one aromatic peroxide compound as free radical initiator, the weight percentage being based on the total weight of the polyallyl-functional monomer; (b) heating the reaction mixture at a temperature within the range of from 12 to 3 Celsius degrees (C) lower than the ten-hour half-life temperature of the aromatic peroxide compound to form a prepolymer composition having viscosity at 25 C within the range of from 40 to 350 mm2/s (from 40 to 350 cSt). The invention also relates to a method for manufacturing an optical article wherein said prepolymer composition is used."
The patent application was internationally filed on Aug. 28, 2024, under International application No.PCT/JP2024/030585.
Disclaimer: Curated by HT Syndication.
