Patent ID: 8378021

Claim:
A method of preparing an opaquely dark-colored molding composition, the method comprising polymerizing a formulation to form the dark-colored molding composition; wherein the formulation comprises: (a) a methyl (meth)acrylate monomer; and (b) an IR-reflective pigment present in the amount of 0.05 to 5% by weight of the molding composition and which is selected from the group consisting of cobalt titanite green spinel having the CAS Number 68186-85-6, chromium oxide having the CAS Number 68909-79-5, iron chromite brown spinel having the CAS Number 68187-09-7, chromium iron oxide having the CAS Number 109414-04-2, nickel iron chromite black spinel having the CAS Number 71631-15-7, and combinations thereof; and wherein the dark-colored molding composition exhibits a heating rate increase of less than 50° C./20 min irradiation, wherein the opaquely dark colored molding composition has a Cielab L* value below 41.