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US Patent 4592861 - Antistatic thermoplastic composition comprising a graft polymer, halogenated thermoplastic polymer and conductive carbon black
US Patent Issued on June 3, 1986
Estimated Patent Expiration Date:
June 8, 2004Estimated 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.
Estimated Patent Expiration Date:
June 8, 2004Estimated 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.AbstractAn antistatic thermoplastic composition comprising a blend of a thermoplastic graft polymer; a thermoplastic halogenated polymer; and an amount of conductive carbon black effective to cause the composition to have a surface resistivity of 102 -1012 ohm/square, wherein the ratio of (a)/(b) is from 9:1-1:9, by weight and the weight percentage of (c) is from 2-10%.Other References
| InventorsApplicationNo. 06/618631 filed on 06/08/1984US Classes:252/511, Resin, rubber, or derivative thereof containing523/174, Phonograph record molding composition or process of preparing524/495, Mixing with carbon, e.g., graphite, etc., having numerical limitations, other than amount, e.g., included herein are particle size, surface area, etc., or composition or product thereof, DNRM524/496, Carbon particle having specified dimension524/504Solid graft or solid graft-type copolymer with other solid polymer, SICP, or SPFIExaminersPrimary: Lilling, Herbert J.Attorney, Agent or FirmUS Patent References3053800, 3877605, 4128539, Curable vinyl chloride resin compositionIssued on: 12/05/1978 Inventor: Onizawa4129608, Multi-component graft copolymer and thermoplastic resin composition thereof Issued on: 12/12/1978 Inventor: Murayama , et al.4228050, Conductive molding composition Issued on: 10/14/1980 Inventor: Martin , et al.4280941, Video discs and molding compositions therefor Issued on: 07/28/1981 Inventor: Datta , et al.4299736, Conductive molding composition and discs therefrom Issued on: 11/10/1981 Inventor: Datta4329276, Molding components Issued on: 05/11/1982 Inventor: Reardon4329278, Molding compositions Issued on: 05/11/1982 Inventor: Reardon4351747, Information signal record medium of the capacitance type Issued on: 09/28/1982 Inventor: Miyamoto , et al.4378310, Conductive molding composition Issued on: 03/29/1983 Inventor: Datta , et al.4386175, Resin composition Issued on: 05/31/1983 Inventor: Kuramochi , et al.4396660, Electroconductive resin composition and a videodisc record Issued on: 08/02/1983 Inventor: Hata , et al.4412941, Recording disc compositions comprising polymers of monovinyl-substituted hydrocarbons, conductive carbon black and lubricants Issued on: 11/01/1983 Inventor: Probst , et al.4465615Electroconductive resin composition and a videodisc record Issued on: 08/14/1984 Inventor: Hata , et al. International ClassesC08K 3/00 (20060101)C08L 27/06 (20060101) C08L 27/00 (20060101) C08K 3/04 (20060101) C08L 51/06 (20060101) C08L 51/00 (20060101) C08L 51/04 (20060101) C08L 23/00 (20060101) C08L 23/28 (20060101) C08L 55/00 (20060101) C08L 55/02 (20060101) |
