# US 2014/0192538 A1 · Polymer light armature > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192538 A1 - Document ID: US20140192538A1 - Status: Published application - Kind: A1 - Application number: 14/150,314 - Filed: 2014-01-08 - Published: 2014-07-10 - Earliest claimed: 2013-01-08 - Assignees: Sabic Innovative Plastics IP B.V. - Applicants: SABIC Innovative Plastics IP B.V. - Inventors: Mark Berix; Nela Stafie; Hendrikus Petrus Cornelis van Heerbeek; Frank Huijs - Web page: https://patentgrep.com/patent/US20140192538A1 ## CPC - C08K 3/04: Carbon - C08K 3/22: of metals - F21V 7/24: characterised by the material - F21V 13/04: the elements being reflectors and refractors {(for vehicle rear lights F21S43/40)} - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR ## Abstract An armature for an illuminant can comprise: walls formed by an armature composition. The armature composition can comprise an armature polymer, 10 wt % to 20 wt % coated titanium dioxide, and greater than zero to 0.001 wt % carbon black, wherein the weight percentages are based upon a total weight of the armature composition. The armature polymer can comprise polycarbonate. At a thickness of greater than or equal to 3 mm, the armature has a reflection at 700 nm of greater than or equal to 93%. A light fixture can comprise a light source in the armature. ## Claims ### Claim 1 An armature for an illuminant, comprising: walls formed by an armature composition, wherein the armature composition comprises an armature polymer, wherein the armature polymer comprises polycarbonate; 10 wt % to 20 wt % coated titanium dioxide; and greater than zero to 0.001 wt % carbon black; wherein the weight percentages are based upon a total weight of the armature composition; wherein, at a thickness of greater than or equal to 3 mm, the armature has a reflection at 700 nm of greater than or equal to 93%. ### Claim 2 (depends on 1) The armature of claim 1, wherein, at a thickness of greater than or equal to 3 mm, the armature has a reflection at 700 nm of greater than or equal to 93%. ### Claim 3 (depends on 1) The armature of claim 1, wherein the carbon black is in the form of powder. ### Claim 4 (depends on 1) The armature of claim 1, wherein the amount of carbon black is 0.000025 wt % to 0.00025 wt %. ### Claim 5 (depends on 1) The armature of claim 1, wherein the amount of carbon black is 0.00005 wt % to 0.0001 wt % ### Claim 6 (depends on 1) The armature of claim 1, wherein the amount of carbon black is 0.000065 wt % to 0.000085 wt %. ### Claim 7 (depends on 1) The armature of claim 1, wherein the armature polymer comprises linear polycarbonate. ### Claim 8 (depends on 1) The armature of claim 1, wherein coated titanium dioxide has a coating comprising PDMS. ### Claim 9 (depends on 1) The armature of claim 1, wherein coated titanium dioxide has a coating comprising PHMS. ### Claim 10 (depends on 1) The armature of claim 1, wherein the armature polymer comprises a siloxane-containing copolymer in an amount effective to provide a total of 0.2 to 6.5 wt % of siloxane units based on the total weight of the polymers in the thermoplastic polymer composition; a bromine-containing polymer in an amount effective to provide 9 to 13 wt % of bromine, based on the total weight of the polymers in the thermoplastic polymer composition; and optionally a third polymer, wherein the wt % of the siloxane-containing copolymer, the bromine-containing polymer, and the optional third polymer, are based upon the total weight of the armature polymer. ### Claim 11 (depends on 1) The armature of claim 1, wherein the armature polymer comprises 35 to 50 wt % of the bromine-containing polymer based on the total weight of polymers in the thermoplastic polymer composition; and 10 to 65 wt % of the siloxane-containing copolymer based on the total weight of the polymers in the thermoplastic polymer composition, wherein the siloxane-containing copolymer comprises a first repeating unit, and a poly(siloxane) unit having the formula: wherein R is each independently a C1-C30 hydrocarbon group, and E has an average value of 5 to 200. ### Claim 12 (depends on 1) The armature of claim 1, wherein armature polymer has a MVR of greater than or equal to 18 cm3/10 min. ### Claim 13 (depends on 1) The armature of claim 1, wherein armature polymer has a MVR of greater than or equal to 20 cm3/10 min. ### Claim 14 (depends on 1) The armature of claim 1, comprising a reflection of greater than or equal to 94%. ### Claim 15 (depends on 1) The armature of claim 1, comprising a percent transmission of up to 5.0%. ### Claim 16 (depends on 1) The armature of claim 1, comprising a percent transmission of 0.01% to 3.0%. ### Claim 17 (depends on 1) The armature of claim 1, wherein the armature polymer comprises a polycarbonate homopolymer. ### Claim 18 An armature for an illuminant, comprising: walls formed by an armature composition, wherein the armature composition comprises an armature polymer, wherein the armature polymer comprises 35 to 50 wt % of the bromine-containing polymer based on the total weight of polymers in the thermoplastic polymer composition; and 10 to 65 wt % of the siloxane-containing copolymer based on the total weight of the polymers in the thermoplastic polymer composition, wherein the siloxane-containing copolymer comprises a first repeating unit, and a poly(siloxane) unit having the formula: wherein R is each independently a C1-C30 hydrocarbon group, and E has an average value of 5 to 200; and 10 wt % to 20 wt % coated titanium dioxide; and greater than zero to 0.001 wt % carbon black; wherein the weight percentages are based upon a total weight of the armature composition. ### Claim 19 An armature for an illuminant, comprising: walls formed by an armature composition, wherein the armature composition comprises an armature polymer, wherein the armature polymer comprises a siloxane-containing copolymer in an amount effective to provide a total of 0.2 to 6.5 wt % of siloxane units based on the total weight of the polymers in the thermoplastic polymer composition; a bromine-containing polymer in an amount effective to provide 9 to 13 wt % of bromine, based on the total weight of the polymers in the thermoplastic polymer composition; and optionally a third polymer, wherein the wt % of the siloxane-containing copolymer, the bromine-containing polymer, and the optional third polymer, are based upon the total weight of the armature polymer; and 10 wt % to 20 wt % coated titanium dioxide; and greater than zero to 0.001 wt % carbon black; wherein the weight percentages are based upon a total weight of the armature composition. ### Claim 20 (depends on 19) A light fixture, comprising: a light source; the armature of claim 19, wherein the light source is located in the armature. ### Claim 21 (depends on 20) The light fixture of claim 20, further comprising a lens in contact with the armature, wherein the armature and lens form a cavity, and wherein the light source is in the cavity.