Masco has been granted a patent for a method of forming an acrylic emulsion, which involves creating a pre-emulsion with specific monomers and an amphoteric surfactant, followed by polymerization. The resulting emulsion includes an acrylic copolymer, adhesion promoter, and a chaser to scavenge unreacted materials. GlobalData’s report on Masco gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Masco, was a key innovation area identified from patents. Masco's grant share as of June 2024 was 79%. Grant share is based on the ratio of number of grants to total number of patents.
The granted patent US12043677B2 describes an acrylic emulsion formulation that includes several key components. The emulsion consists primarily of water and an acrylic copolymer, which is synthesized from a specific monomer composition that includes butyl acrylate, methyl methacrylate, methacrylic acid, and an adhesion promoter. The adhesion promoter is incorporated in a range of 0.5 to 5 weight percent of the total emulsion weight. Additionally, the formulation contains an amphoteric surfactant, present at 0.5% to 5% of the acrylic copolymer's weight, a chaser to scavenge unreacted monomers, and residues of a radical initiator derived from persulfates and reducing agents. The acrylic copolymer constitutes 35 to 65 weight percent of the emulsion, with the remaining components including the surfactant, initiator residues, and water.
Further claims detail the characteristics of the amphoteric surfactant, which must include an amino group and at least one carboxylate group. Variants of the amino group, such as secondary, tertiary, or quaternary amines, are specified. The surfactant can be selected from a range of compounds, including various betaines and amphoteric agents. The copolymer may also be formed from additional monomers like acrylic acid and ethyl hexyl acrylate. The patent outlines precise weight percentages for each component, ensuring a balanced formulation that optimizes the properties of the acrylic emulsion while maintaining effective scavenging of unreacted materials.
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