US2013158184A1PendingUtilityA1

Light-Emitting Diode Assembly Housing Comprising Poly(Cyclohexanedimethanol Terephthalate) Compositions

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Assignee: TICONA LLCPriority: Sep 14, 2005Filed: Dec 3, 2012Published: Jun 20, 2013
Est. expirySep 14, 2025(expired)· nominal 20-yr term from priority
Inventors:Georgios Topoulos
C08K 5/005H10H 20/8506H10H 20/854Y10T428/2995G02B 1/04Y10T428/1352C08K 9/06C08G 63/183C08K 9/02C08K 9/04H01L 33/56
61
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Claims

Abstract

Light-emitting diode assembly housing comprising high temperature poly(1,4-cyclohexanedimethanol terephthalate) compositions containing titanium dioxide.

Claims

exact text as granted — not AI-modified
1 .- 17 . (canceled) 
     
     
         18 . A composition comprising:
 (a) about 40 to about 95 weight percent poly(1,4-cyclohexanedimethanol terephthalate); and   (b) about 15 to about 50 weight percent of rutile titanium dioxide;   (c) 0 to about 40 weight percent of one or more inorganic reinforcing agents and/or one or more inorganic fillers;   (d) 0 to about 3 weight percent of one or more oxidative stabilizers; and   (e) an ethylene/(meth)acrylate copolymer and/or an ethylene, ethyl acrylate or n-butyl acrylate and glycidyl methacrylate terpolymer;   
       wherein the weight percentages are based on the total weight of the composition. 
     
     
         19 . The composition as defined in  claim 18 , wherein the composition contains from about 1% to about 20% by weight of an inorganic filler. 
     
     
         20 . The composition as defined in  claim 18 , wherein the composition contains from about 1% to about 20% by weight of the inorganic reinforcing agent, the inorganic reinforcing agent comprising glass fibers. 
     
     
         21 . The composition as defined in  claim 18 , wherein the composition contains from about 0.1% to about 3% by weight of the oxidative stabilizer. 
     
     
         22 . The composition as defined in  claim 20 , wherein the composition contains from about 0.1% to about 3% by weight of the oxidative stabilizer. 
     
     
         23 . The composition as defined in  claim 18 , wherein the composition further comprises from about 0.1% to about 3% by weight of an ultraviolet light stabilizer. 
     
     
         24 . The composition as defined in  claim 18 , wherein both the ethylene/methacrylate copolymer and the ethylene, ethyl acrylate or n-butyl acrylate and glycidyl methacrylate terpolymer are present in the composition. 
     
     
         25 . The composition as defined in  claim 18 , wherein the composition further comprises a polymer having attached to it functional groups that react with the poly(1,4-cyclohexanedimethanol terephthalate). 
     
     
         26 . The composition as defined in  claim 25 , wherein the composition contains from about 1% to about 20% by weight of an inorganic filler. 
     
     
         27 . The composition as defined in  claim 18 , wherein the composition further contains polybutylene terephthalate, polyethylene terephthalate or a liquid crystalline polyester. 
     
     
         28 . A housing for a light-emitting diode for reflecting light in an outward direction, comprising a composition as defined in  claim 18 . 
     
     
         29 . A composition comprising:
 (a) about 40 to about 95 weight percent poly(1,4-cyclohexanedimethanol terephthalate); and   (b) about 5 to about 60 weight percent of titanium dioxide; and   (c) from about 0.5% to about 15% by weight of a polymer that has attached to it functional groups that react with the poly(1,4-cyclohexanedimethanol terephthalate).   
     
     
         30 . The composition as defined in  claim 29 , wherein the functional groups that are attached to the polymer comprise epoxy groups. 
     
     
         31 . The composition as defined in  claim 29 , wherein the functional groups that are attached to the polymer comprise carboxylic anhydride groups, hydroxyl groups, carboxyl groups, or isocyanate groups. 
     
     
         32 . The composition as defined in  claim 30 , wherein the epoxy groups are grafted to the polymer that reacts with the poly(1,4-cyclohexanedimethanol terephthalate). 
     
     
         33 . The composition as defined in  claim 29 , further comprising from about 1% to about 20% by weight of one or more inorganic reinforcing agents. 
     
     
         34 . The composition as defined in  claim 29 , further comprising from about 1% to about 20% by weight of one or more inorganic fillers. 
     
     
         35 . The composition as defined in  claim 33 , wherein the inorganic reinforcing agent comprises glass fibers. 
     
     
         36 . The composition as defined in  claim 29 , further comprising from about 0.1% to about 3% by weight of an oxidative stabilizer. 
     
     
         37 . The composition as defined in  claim 34 , wherein the inorganic filler comprises talc. 
     
     
         38 . The composition as defined in  claim 29 , wherein the composition further contains polybutylene terephthalate, polyethylene terephthalate or a liquid crystalline polyester. 
     
     
         39 . The composition as defined in  claim 29 , further comprising an ethylene/(meth)acrylate copolymer. 
     
     
         40 . A housing for a light-emitting diode for reflecting light in an outward direction, comprising a composition as defined in  claim 29 . 
     
     
         41 . A composition comprising:
 (a) about 40 to about 95 weight percent poly(1,4-cyclohexanedimethanol terephthalate); and   (b) about 5 to about 60 weight percent of titanium dioxide;   (c) about 1 to about 20 weight percent of one or more inorganic reinforcing agents;   (d) from about 0.1% to about 3% by weight of one or more oxidative stabilizers;   (e) an ethylene/(meth)acrylate copolymer and/or an ethylene, ethylacrylate or n-butylacrylate and glycidyl methacrylate terpolymer; and   (f) a polymer having attached to it functional groups that react with the poly(1,4-cyclohexanedimethanol terephthalate).   
     
     
         42 . The composition as defined in  claim 41 , wherein the titanium dioxide is present in an amount from about 15% to about 50% by weight. 
     
     
         43 . The composition as defined in  claim 41 , wherein the inorganic reinforcing agent comprises glass fibers. 
     
     
         44 . The composition as defined in  claim 41 , further containing polybutylene terephthalate, polyethylene terephthalate or a liquid crystalline polyester. 
     
     
         45 . A housing for a light-emitting diode for reflecting light in an outward direction, comprising a composition as defined in  claim 41 .

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