Patent ID: 8178206

Claim:
A solar control composition comprising an infrared absorbing phthalocyanine compound or naphthalocyanine compound; a plasticized poly(vinyl butyral); and a weathering package comprising a phosphite processing stabilizer, a chlorine-containing benzotriazole light stabilizer, and, optionally, one or more other additives selected from the group consisting of dispersants, surfactants, chelating agents, coupling agents, processing aides, flow enhancing additives, lubricants, pigments, dyes, flame retardants, impact modifiers, nucleating agents to increase crystallinity, antiblocking agents such as silica, UV stabilizers, adhesives, primers, crosslinking agents, hardening agents, pH adjusting agents, antifoaming agents inorganic infrared absorbents, organic infrared absorbents, hindered amine light stabilizers, thermal stabilizers, UV absorbers, and wetting agents.