Polycarbonate blends having improved electroplate adhesion
AssigneeSabic Global Technologies B.V.
InventorsAmit S. Kulkarni, Thomas Dulmage, Jeffrey Eshenaur
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Abstract
The present disclosure relates to thermoplastic polycarbonate blends compositions having, among other characteristics, improved electroplate adhesion properties. In particular, the disclosure relates to such polycarbonate compositions comprising a polycarbonate component, a primary ABS impact modifier, and a secondary impact modifier chemically different from the primary impact modifier. Also included herein are methods for preparing and/or using the same, as well as articles formed from such compositions/blends.
Claims36
A thermoplastic composition with improved electroplate adhesion comprising from about 40 wt % to about 75 wt % of two or more polycarbonate resins, from about 24 wt % to about 53 wt % of a first impact modifier, and from about 1 wt % to about 7 wt % of a second impact modifier;
- wherein the thermoplastic composition further comprises a hydrolytic stabilizer comprising an inorganic buffer, and wherein the combined weight percent value of all components does not exceed 100 wt %;
- wherein all weight percent values are based on the total weight of the composition;
- and wherein the composition exhibits an adhesion value at least 10% greater than that of a reference composition consisting essentially of substantially the same proportions of the same polycarbonate polymers and the same first impact modifier.
A process to improve the electroplate adhesion of a thermoplastic composition, the process comprising combining at least two polycarbonate resins, a first impact modifier, and a second impact modifier;
- wherein the at least two polycarbonate resins are combined in an amount of from about 45 wt % to about 55 wt % of the total composition;
- wherein the first impact modifier is combined in an amount of from about 40 wt % to about 48 wt %;
- wherein the second impact modifier is combined in an amount of from about 1 wt % to about 7 wt %;
- wherein the thermoplastic composition further comprises a hydrolytic stabilizer comprising an inorganic buffer, and
- wherein the combined weight percent value of all components does not exceed 100 wt %;
- wherein all weight percent values are based on the total weight of the composition;
- and
- wherein the composition exhibits an adhesion value at least 10% greater than that of a reference composition consisting essentially of substantially the same proportions of the same polycarbonate polymers and the same first impact modifier.
A thermoplastic composition with improved electroplate adhesion comprising from about 45 wt % to about 68 wt % of two or more polycarbonate resins, from about 31 wt % to about 48 wt % of a first impact modifier, and from about 1 wt % to about 7 wt % of a second impact modifier;
- wherein the thermoplastic composition further comprises a hydrolytic stabilizer comprising an inorganic buffer, and wherein the combined weight percent value of all components does not exceed 100 wt %;
- wherein all weight percent values are based on the total weight of the composition;
- and wherein the composition exhibits an adhesion value at least 10% greater than that of a reference composition consisting essentially of substantially the same proportions of the same polycarbonate polymers and the same first impact modifier.
A thermoplastic composition with improved electroplate adhesion comprising from about 48 wt % to about 58 wt % of two or more polycarbonate resins, from about 39 wt % to about 45 wt % of a first impact modifier, and from about 1 wt % to about 7 wt % of a second impact modifier;
- wherein the thermoplastic composition further comprises a hydrolytic stabilizer comprising an inorganic buffer, and wherein the combined weight percent value of all components does not exceed 100 wt %;
- wherein all weight percent values are based on the total weight of the composition;
- and wherein the composition exhibits an adhesion value at least 10% greater than that of a reference composition consisting essentially of substantially the same proportions of the same polycarbonate polymers and the same first impact modifier.
A thermoplastic composition with improved electroplate adhesion comprising from about 40 wt % to about 75 wt % of two or more polycarbonate resins having different molecular weights, from about 24 wt % to about 53 wt % of a first impact modifier, and from about 1 wt % to about 7 wt % of a second impact modifier;
- and wherein the combined weight percent value of all components does not exceed 100 wt %;
- wherein all weight percent values are based on the total weight of the composition;
- and wherein the composition exhibits an adhesion value at least 10% greater than that of a reference composition consisting essentially of substantially the same proportions of the same polycarbonate polymers and the same first impact modifier.
Dependencies are inferred from the claim text.