Thermoplastic resin composition and method of improving appearance

• US 20030162871A1
• Filed: 02/03/2003
• Published: 08/28/2003
• Est. Priority Date: 02/08/2002
• Status: Active Grant

• Current Assignee: SABIC Global Technologies BV (Government of Saudi Arabia)
• Original Assignee: Sabic Innovative Plastics IP BV (Government of Saudi Arabia)
• Inventors: Saito, Akihiro
• Granted Patent: US 7,214,732 B2
• Time in Patent Office: Days
• US Class Current: 524/148
• CPC Class Codes: C08K 5/50 Phosphorus bound to carbon only
• CPC Class Codes: Y10S 524/912 Contains metal, boron, phosphorus, or silicon

Abstract

To present a thermoplastic resin composition that gives a molded product with a surface to which dust is less likely to adhere. This patent presents a method of improving the appearance of the surface of a thermoplastic molded product.

Claims

1. Thermoplastic resin composition comprising 0.0001 to less than about 0.05% by weight of halogenated carbon suffonate of polysubstituted phosphonium compound per 100% by weight of a thermoplastic resin.

3. Thermoplastic resin composition mentioned in claim 1, wherein above mentioned halogenated carbon sulfonate of polysubstituted phosphonium compound is sulfonic acid phosphonium compound represented by the following formula (1).

4. Thermoplastic resin composition mentioned in claim 3, wherein X is fluorine.

5. Thermoplastic resin composition mentioned in claim 3, wherein n is 3 and R₁, R₂ and R₃ are individually alkyl groups with 4 carbon atoms, Y is absent and m and p are 0.

6. Thermoplastic resin composition mentioned in claim 1, wherein thermoplastic resin mentioned above is selected from a group consisting of aromatic polycarbonate, polyether imide, polyester, polyphenylene ether, polyphenylene ether/styrene polymer blend, polyamide, polyketone, acrylonitrile-butadiene-styrene, their blends, and their blends with other substances.

7. Thermoplastic resin composition mentioned in claim 6, wherein thermoplastic resin mentioned above is aromatic polycarbonate.

8. Thermoplastic resin composition mentioned in claim 7, wherein the aromatic polycarbonate mentioned above is prepared by fusion method.

2. Thermoplastic resin composition comprising 0.0001 to less than about 0.001% by weight of halogenated carbon sulfonate of polysubstituted phosphonium compound per 100% by weight of a thermoplastic resin.

9. Method for improving fern marks of molded product by adding 0.0001 to less than about 0.05% by weight of halogenated carbon sulfonate of polysubstituted phosphonium compound to 100% by weight of thermoplastic resin.

11. Method of improving fern marks of molded product mentioned in claim 9, wherein above-mentioned halogenated alkyl sulfonate of polysubstituted phosphonium compound is sulfonic acid phosphonium compound represented by the following formula (1).

12. Method for improving fern marks of molded product mentioned in claim 11, wherein X is fluorine.

13. Method of improving fern marks of molded product mentioned in claim 11, wherein n is 3 and R₁, R₂ and R₃ and R₄ are alkyl groups with 4 carbon atoms respectively, Y is absent and m and p are 0.

14. Method of improving fern marks of molded product mentioned in claim 9, wherein thermoplastic resin mentioned above is selected from a group consisting of aromatic polycarbonate, polyetherimide, polyester, polyphenylene ether, polyphenylene ether/styrene polymer blend, polyamide, polyketone, acrylonitrile-butadiene-styrene, their blends, and their blends with other substances.

15. Method of improving fern marks of molded product mentioned in claim 14, wherein the above mentioned thermoplastic resin composition is aromatic polycarbonate.

16. Method of improving fern marks of molded product mentioned in claim 15, wherein the above-mentioned transparent aromatic polycarbonate is aromatic polycarbonate prepared by fusion method.

10. Method for improving fern marks of molded product by adding 0.0001 to less than about 0.001% by weight of halogenated carbon sulfonate of polysubstituted phosphonium compound to 100% by weight of thermoplastic resin.