# US 10,480,192 B2 · Colored roofing membrane with improved solar reflectance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,480,192 B2 - Document ID: US10480192B2 - Status: Granted - Kind: B2 - Application number: 14/213,299 - Filed: 2014-03-14 - Published: 2014-09-18 - Granted: 2019-11-19 - Earliest claimed: 2013-03-15 - Assignees: Building Materials Investment Corporation - Applicants: Building Materials Investment Corporation - Inventors: Linlin Xing; Thomas John Taylor - Web page: https://patentgrep.com/patent/US10480192B2 ## CPC - E04D 5/10: by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen - E04D 5/06: by making use of plastics - Y02A 30/254: Roof garden systems; Roof coverings with high solar reflectance - Y02B 80/00: Architectural or constructional elements improving the thermal performance of buildings - Y10T 156/10: Methods of surface bonding and/or assembly therefor - Y10T 428/31913: Monoolefin polymer - Y10T 442/10: Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.] - E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Exemplary embodiments of a thermoplastic polyolefin membrane are provided. The colored TPO membrane can have a cap layer having a top color layer and a white sub-layer having a solar reflectance underneath the top color layer, and a core layer underneath the cap layer. The colored TPO roofing membrane can have a reinforcing polyester scrim between the cap layer and the core layer. The white sub-layer can be made up of one or more layers. ## Claims ### Claim 1 A colored roofing membrane comprising: a thermoplastic polyolefin roofing membrane configured to be applied to a roof of a building; comprising: a cap layer comprising: a thermoplastic colored topmost layer; and a thermoplastic white sub-layer directly underneath and in direct physical contact with the colored topmost layer; and a core layer underneath the cap layer. ### Claim 2 (depends on 1) The colored roofing membrane according to claim 1, further comprising: a fabric scrim between the cap layer and the core layer. ### Claim 3 (depends on 2) The colored roofing membrane according to claim 2, wherein the fabric scrim is a reinforcing polyester scrim. ### Claim 4 (depends on 1) The colored roofing membrane according to claim 1, wherein the colored topmost layer comprises one or more of cool color pigments, UV stabilizers, and fire retardants. ### Claim 5 (depends on 1) The colored roofing membrane according to claim 1, wherein the white sub-layer comprises one or more of titanium dioxide pigment, UV stabilizer package, fire retardant and TPO resins. ### Claim 6 (depends on 5) The colored roofing membrane according to claim 5, wherein the white sub-layer comprises one or more layers. ### Claim 7 (depends on 1) The colored roofing membrane according to claim 1, wherein the core layer comprises a dark color. ### Claim 8 (depends on 7) The colored roofing membrane according to claim 7, wherein the core layer comprises carbon black, titanium dioxide, UV stabilizer packages, fire retardant and TPO resins. ### Claim 9 (depends on 1) The colored roofing membrane according to claim 1, wherein the core layer comprises a light color. ### Claim 10 (depends on 9) The colored roofing membrane according to claim 9, wherein the core layer comprises titanium dioxide, UV stabilizer packages, fire retardant and TPO resins. ### Claim 11 A method of manufacturing a colored roofing membrane, the method comprising: providing a thermoplastic polyolefin roofing membrane configured to be applied to a roof of a building; comprising: providing a cap layer comprising: providing a thermoplastic colored topmost layer; and providing a thermoplastic white sub-layer directly underneath and in direct physical contact with the colored topmost layer; and providing a core layer underneath the cap layer. ### Claim 12 (depends on 11) The method according to claim 11, further comprising: providing a fabric scrim provided between the cap layer and the core layer. ### Claim 13 (depends on 12) The method according to claim 12, wherein the fabric scrim is a reinforcing polyester scrim. ### Claim 14 (depends on 11) The method according to claim 11, wherein the colored topmost layer comprises one or more of cool color pigments, UV stabilizers, and fire retardants. ### Claim 15 (depends on 11) The method according to claim 11, wherein the white sub-layer comprises one or more of titanium dioxide pigment, UV stabilizer package, fire retardant and TPO resins. ### Claim 16 (depends on 15) The method according to claim 15, wherein the white sub-layer comprises one or more layers. ### Claim 17 (depends on 11) The method according to claim 11, wherein the core layer comprises a dark color. ### Claim 18 (depends on 17) The method according to claim 17, wherein the core layer comprises carbon black, titanium dioxide, UV stabilizer packages, fire retardant and TPO resins. ### Claim 19 (depends on 11) The method according to claim 11, wherein the core layer comprises a light color. ### Claim 20 (depends on 19) The method according to claim 19, wherein the core layer comprises titanium dioxide, UV stabilizer packages, fire retardant and TPO resins. ### Claim 21 (depends on 1) The colored roofing membrane according to claim 1, wherein the thermoplastic polyolefin membrane has a total solar reflectance between 0.48 and 0.64. ### Claim 22 (depends on 1) The colored roofing membrane according to claim 1, wherein the colored topmost layer is thinner than the white sub-layer. ### Claim 23 (depends on 11) The method according to claim 11, wherein the thermoplastic polyolefin membrane has a total solar reflectance between 0.48 and 0.64. ### Claim 24 (depends on 11) The method according to claim 11, wherein the colored topmost layer is thinner than the white sub-layer.