Antistatic thermoplastic polyester resin composition
Patent 5045580 Issued on September 3, 1991. Estimated Expiration Date: 
November 30, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 30, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2437046 3255151 3476698 3560591 3583941 3663498 3904578 Polybutylene terephthalate resin composition Polyesters with modified melt viscosity Patent #: 4882375 InventorAssigneeApplicationNo. 443135 filed on 11/30/1989US Classes:524/147, Phosphorus directly bonded to oxygen524/153, Triphenyl phosphite per se524/161, Metal524/166, Metal524/238, (C=X)X group wherein X is chalcogen524/239, Two or more (C=X)X groups524/320Oxygen atom other than as part of a COOH or derivative groupExaminersPrimary: Hoke, Veronica P.Attorney, Agent or FirmForeign Patent References
International ClassC08K 005/524Foreign Application Priority Data1988-12-02 JPAbstractA thermoplastic polyester resin composition exhibiting improved antistatic properties including a thermoplastic polyester resin, between about 0.02 to about 10 wt. %, based on the total weight of the composition, of a sulfonate-type anionic antistatic agent, and between about 0.005 to about 10 wt. %, based on the total weight of the composition, of one or more compounds selected from organophosphorus compounds, and organic chelating agents. | |
