ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,124, issued on May 26, was assigned to Johns Manville (Denver).

"Formaldehyde free composites made with carbohydrate and alpha-carbon nucleophile binder compositions" was invented by Kiarash Alavi (Littleton, Colo.) and Ameya Natu (Highlands Ranch, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Fiber-containing composites are described that contain woven or non-woven fibers, and a cured binder formed from a binder composition that includes (1) a reducing sugar and (2) a crosslinking agent that includes a first carbon moiety selected from an aldehyde, a ketone, a nitrile, and a nitro group, wherein an Alpha-carbon atom having at least one acidic...