MUMBAI, India, July 31 -- Intellectual Property India has published a patent application (202647088336 A) filed by Resonac Corporation on July 20, 2026, for Chloroprene Latex, Rubber Asphalt Emulsion, Asphalt Layer, And Asphalt Mixture.
Inventors include Ohguma Yuya; and Ogawa Noriko.
The application for the patent was published on July 24, 2026, under issue no. 30/2026.
Abstract: The purpose of the present invention is to provide a rubber asphalt emulsion with which it is possible to exhibit a higher aggregate holding property when combined with an aggregate and to provide a chloroprene latex with which it is possible to yield such a rubber asphalt emulsion. Provided is a chloroprene latex containing a polymer that contains a structural unit derived from a chloroprene monomer and a structural unit derived from a second monomer other than the chloroprene monomer. The gel amount in the chloroprene latex is 70% or more, the second monomer has a crystallization temperature, a glass transition temperature, or a melting point of 80°C or higher when homopolymerized, the content of the structural unit derived from the second monomer in the polymer is 3-10 mass parts per 100 mass parts of the total structural units constituting the polymer, and the z average particle size of the polymer is 150 nm or less.
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