Method for preparing a sol-gel resin

US9353208B2 · kind B2 · utility

Assignee

• HEXION INC. · US

Inventors

• Stephen W. Arbuckle · Louisville, US
• Gabriele BADINI · Sasbachwalden, DE
• John Huggins · Leverkusen, DE
• Sanjay Gangal · Louisville, US

Key dates

• Filing date: Apr 23, 2014
• Grant date: May 31, 2016
• Expiry date: Apr 23, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2361/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Sol-gel resins can be prepared using one or two-step processes to produce small granules or pellets of resin that are easy to handle. The methods include agitating phenolic compounds and aldehydes in the presence of a catalyst and a solvent. The reactants are brought together over a period of time to avoid an undesirable buildup of heat within the reaction mass. Condensation of the material continues under agitation sufficient to knead the material as it gels. During this gelation, the material begins to form into smaller parts until particles, the shape of granules, are produced. The condensation continues to the degree that the material is no longer capable of sintering during packaging and storage. The material thus made can be easily discharged, packaged, portioned, and further processed.