Video discs and molding compositions therefor
Patent 4280941 Issued on July 28, 1981. Estimated Expiration Date: 
May 8, 2000. 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.
May 8, 2000. 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 3318826 3655825 3833408 3842194 3842217 3909517 Vinyl chloride based injection molding composition Molding composition Patent #: 4151132 InventorsAssigneeApplicationNo. 06/147577 filed on 05/08/1980US Classes:523/174, Phonograph record molding composition or process of preparing252/511, Resin, rubber, or derivative thereof containing524/527Solid polymer derived from chlorine-containing reactantExaminersPrimary: Jacobs, Lewis T.Attorney, Agent or FirmInternational ClassesC08K 5/00 (20060101)C08K 5/58 (20060101) C08K 3/00 (20060101) C08L 27/06 (20060101) C08L 27/00 (20060101) C08K 3/04 (20060101) C08L 51/00 (20060101) C08L 51/10 (20060101) AbstractA polyvinyl chloride based molding composition containing polymer grafted conductive carbon particles has good processability, low heat distortion temperature and good dispersion of the conductive particles and can be molded to form video discs of improved electrical properties.Other References
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