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US 10,370,534 B2Granted
High heat polycarbonate compositions
AssigneeSabic Global Technologies B.V.
InventorsSarah E. Grieshaber, Tony Farrell, Daniel Francis Lowery, Mark Adrianus Johannes van der Mee, Roland Sebastian Assink, Robert Dirk van de Grampel
Life of this patent
Estimating the term…
Abstract
Polycarbonate blend compositions are disclosed. The compositions include at least one polycarbonate useful for high heat applications. The compositions can include one or more additional polymers. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture, and in particular, automotive bezels.
Claims29
A metallized article comprising a metallized surface and a thermoplastic composition comprising:
- (a) a first polycarbonate that includes structural units derived from at least one of:
- wherein Ra and Rb at each occurrence are each independently halogen, C1-C12 alkyl, C1-C12 alkenyl, C3-C8 cycloalkyl, or C1-C12 alkoxy;
- p and q at each occurrence are each independently 0 to 4;
- R13 at each occurrence is independently a halogen or a C1-C6 alkyl group;
- c at each occurrence is independently 0 to 4;
- R14 at each occurrence is independently a C1-C6 alkyl, phenyl, or phenyl substituted with up to five halogens or C1-C6 alkyl groups;
- Rg at each occurrence is independently C1-C12 alkyl or halogen, or two Rg groups together with the carbon atoms to which they are attached form a four-, five-, or six-membered cycloalkyl group;
- t is 0 to 10;
- and x:y is 1:99 to 99:1, the first polycarbonate having a Mw of 16,000 g/mol [±1,000 g/mol] to 20,000 g/mol [±1,000 g/mol], as determined by GPC using polycarbonate standards;
- (b) 15 to 60 wt % of a second polycarbonate that is a Bisphenol A (BPA) polycarbonate having a Mw of greater than 19,800 g/mol to 40,000 g/mol [±1,000 g/mol], as determined by GPC using BPA polycarbonate standards;
- (c) optionally 15 wt % to 45 wt % of a third polycarbonate that is a BPA polycarbonate having a Mw of 17,000 g/mol [±1,000 g/mol] to 40,000 g/mol [±1,000 g/mol], as determined by GPC using BPA polycarbonate standards;
- provided the third polycarbonate is different from the second polycarbonate;
- and
- (d) 0.5 wt % to 10 wt % of a first polyester of formula
- wherein T at each occurrence is independently selected from a divalent aliphatic radical, a divalent alicyclic radical, a divalent aromatic radical, and a polyoxyalkylene radical;
- D at each occurrence is independently selected from a divalent aliphatic radical, a divalent alicyclic radical, and a divalent aromatic radical;
- and m is an integer selected from 25 to 1000;
- provided that the combined wt % value of all components does not exceed 100 wt %;
- wherein the composition has a heat deflection temperature of at least 155° C., measured at 0.45 MPa in accordance with ASTM D 648 or ISO 75;
- wherein the composition has a melt viscosity of less than 395 Pa s, measured in accordance with ISO 11443 at 300° C. at a shear rate of 1500 s1;
- wherein a molded sample of the composition has at least 60% ductility in a multi-axial impact test at 23° C., measured in accordance with ASTM D3763 or ISO 6603;
- and
- wherein the article achieves a GT0 metal adhesion rating when measured in accordance with ASTM 3359/ISO 2409.
20 more elements
A metallized article comprising a metallized surface and a thermoplastic composition comprising:
- (a) 40 wt % to 85 wt % of a first polycarbonate that includes structural units derived from at least one of:
- wherein Ra and Rb at each occurrence are each independently halogen, C1-C12 alkyl, C1-C12 alkenyl, C3-C8 cycloalkyl, or C1-C12 alkoxy;
- p and q at each occurrence are each independently 0 to 4;
- R3 at each occurrence is independently a halogen or a C1-C6 alkyl group;
- c at each occurrence is independently 0 to 4;
- R14 at each occurrence is independently a C1-C6 alkyl, phenyl, or phenyl substituted with up to five halogens or C1-C6 alkyl groups;
- Rg at each occurrence is independently C1-C12 alkyl or halogen, or two Rg groups together with the carbon atoms to which they are attached form a four-, five-, or six-membered cycloalkyl group;
- t is 0 to 10;
- and x:y is 1:99 to 99:1, the first polycarbonate having a Mw of 16,000 g/mol [±1,000 g/mol] to 20,000 g/mol [±1,000 g/mol], as determined by GPC using polycarbonate standards;
- (b) 15 to 60 wt % of a second polycarbonate that is a Bisphenol A (BPA) polycarbonate having a Mw of greater than 19,800 g/mol to 40,000 g/mol [±1,000 g/mol], as determined by GPC using BPA polycarbonate standards;
- (c) optionally 15 wt % to 45 wt % of a third polycarbonate that is a BPA polycarbonate having a Mw of 17,000 g/mol [±1,000 g/mol] to 40,000 g/mol [±1,000 g/mol], as determined by GPC using BPA polycarbonate standards;
- provided the third polycarbonate is different from the second polycarbonate;
- and
- (d) 0.5 wt % to 10 wt % of a first polyester of formula
- wherein T at each occurrence is independently selected from a divalent aliphatic radical, a divalent alicyclic radical, a divalent aromatic radical, and a polyoxyalkylene radical;
- D at each occurrence is independently selected from a divalent aliphatic radical, a divalent alicyclic radical, and a divalent aromatic radical;
- and m is an integer selected from 25 to 1000;
- provided that the combined wt % value of all components does not exceed 100 wt %;
- wherein the composition has a heat deflection temperature of at least 155° C., measured at 0.45 MPa in accordance with ASTM D 648 or ISO 75;
- wherein the composition has a melt viscosity of less than 395 Pa s, measured in accordance with ISO 11443 at 300° C. at a shear rate of 1500 s1;
- wherein a molded sample of the composition has at least 60% ductility in a multi-axial impact test at 23° C., measured in accordance with ASTM D3763 or ISO 6603;
- and
- wherein the article achieves a GT0 metal adhesion rating when measured in accordance with ASTM 3359/ISO 2409.
20 more elements
Dependencies are inferred from the claim text.