ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,158, issued on Jan. 28, was assigned to BOSTIK SA (Colombes, France).
"(Meth)acrylic composition comprising a modified polyurethane" was invented by Guillaume Michaud (Venette, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for the preparation of a polyurethane comprising: E1) a stage of preparation of a polyurethane having NCO endings comprising the polyaddition reaction between: i) at least one polyisocyanate; ii) at least one polyol; and iii) at least one amine having the following formula (I) or (II): and E2) the reaction of the product formed on conclusion of stage E1) with at least one (meth)ac...