MUMBAI, India, July 5 -- Intellectual Property India has published a patent application (202517056691 A) filed by Dow Global Technologies Llc, Midland, U.S.A., on June 12, for 'high stiffness polyurethane foam compositions.'
Inventor(s) include Shete, Abhishek; Diena, Paolo; Ogunniyi, Adebola; Cannon, Maribel; Shah, Harshad M; Tresoldi, Micol Federica; Aou, Kaoru; and Alencar Marques, Yuri.
The application for the patent was published on July 4, under issue no. 27/2025.
According to the abstract released by the Intellectual Property India: "Foam-forming compositions may include (a) at least one isocyanate component; and (b) at least one isocyanate-reactive composition including: (i) at least one low molecular weight polyether polyol having an average functionality ranging from 2 to 8 and a hydroxyl equivalent weight in the range of 30 Da to 450 Da; (ii) at least one EO-capped high molecular weight polyether polyol having an average functionality ranging from 2 to 8 and a hydroxyl equivalent weight in the range of 1500 Da to 10,000 Da; and (iii) optionally, at least one high molecular weight polyether polyol having an average functionality ranging from 1 to 8 and a hydroxyl equivalent weight in the range of 800 Da to 10,000 Da, wherein (ii) is present at a percent by weight (wt%) of the sum of the polyols in the isocyanate-reactive composition ranging from 25 wt% to 75 wt%; (c) a catalyst package comprising at least one latent gelling catalyst; and (d) at least one blowing agent; wherein an isocyanate index of the foam-forming composition is from 60 to 300 and the foam has a molded foam density of from 250 kg/m3 to 750 kg/m3 according to ASTM D1622-20."
The patent application was internationally filed on Nov. 14, 2023, under International application No.PCT/US2023/079614.
Disclaimer: Curated by HT Syndication.
