Patent ID: 11958955
Assignee: OWENS CORNING INTELLECTUAL CAPITAL, LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 14:
15. A method of forming a non-structural, non-isocyanate foam with reduced harmful vapor emission from a two-part spray foam system, the method comprising:
providing, in a first spray foam part, a urethane reactant comprising a cyclocarbonate-amine adduct and
a resin polymer;
providing, in a second spray foam part, a cross-linker having at least two reactive functional groups adapted to be rapidly crosslinked with the reactive functional groups of the urethane reactant to form a hybrid non-isocyanate polyurethane foam and a blowing agent;
and a rheology modifier in at least one of the first spray foam part and the second spray foam part;
mixing the first spray foam part and the second spray foam part;
applying the non-structural foam to a substrate, wherein the foam is tack-free within two minutes after mixing and cures to form a non-structural, non-isocyanate foam having an R-value of greater than 3.