IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0057946
(2005-02-15)
|
등록번호 |
US-7462656
(2008-12-09)
|
발명자
/ 주소 |
- Keulen,Jan Peter
- Koevoets,Christiaan Henricus Johannes
|
출원인 / 주소 |
- Sabic Innovative Plastics IP B.V.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
15 인용 특허 :
126 |
초록
▼
Disclosed herein is a method of manufacturing an electrically conductive composition comprising reducing the viscosity of a molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a polymer to form the electrically conductive compos
Disclosed herein is a method of manufacturing an electrically conductive composition comprising reducing the viscosity of a molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a polymer to form the electrically conductive composition. Disclosed herein too is a method of manufacturing an electrically conductive composition comprising mixing a molten masterbatch with a first polymer in a first extruder, wherein the first polymer has a melt viscosity that is lower than the melt viscosity of the molten masterbatch; reducing the melt viscosity of the molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a second polymer in a second extruder to form the electrically conductive composition.
대표청구항
▼
What is claimed is: 1. A method of manufacturing an electrically conductive composition comprising: reducing the viscosity of a molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a polymer to form the electrically conductive c
What is claimed is: 1. A method of manufacturing an electrically conductive composition comprising: reducing the viscosity of a molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a polymer to form the electrically conductive composition. 2. The method of claim 1, wherein the viscosity of the molten masterbatch is reduced by mixing it with a diluent, a plasticizer, a polymer having a melt viscosity that is lower than the viscosity of the molten masterbatch, or a combination thereof. 3. A method of manufacturing an electrically conductive composition comprising: mixing a molten masterbatch with a first polymer in a first extruder, wherein the first polymer has a melt viscosity that is lower than the melt viscosity of the molten masterbatch; reducing the melt viscosity of the molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a second polymer in a second extruder to form the electrically conductive composition. 4. The method of claim 3, wherein the molten masterbatch comprises a polymer and an electrically conductive filler. 5. The method of claim 4, wherein the electrically conductive filler is carbon black, carbon nanotubes, carbon fibers, metallic fillers, non-conductive fillers coated with metallic coatings, electrically conductive non-metallic fillers, or a combination comprising at least one of the foregoing electrically conductive fillers. 6. The method of claim 5, wherein the carbon nanotubes are single wall carbon nanotubes, multiwall carbon nanotubes, vapor grown carbon fibers, or a combination comprising at least one of the foregoing carbon nanotubes. 7. The method of claim 4, wherein the molten masterbatch comprises up to about 50 wt % of the electrically conductive fillers, based on the weight of the molten masterbatch. 8. The method of claim 3, wherein the first extruder is a side compounder to the second extruder. 9. The method of claim 3, wherein the first polymer is the same as the second polymer. 10. The method of claim 3, wherein the first polymer is different from the second polymer. 11. The method of claim 3, wherein the first polymer and the second polymer are compatibilized in the electrically conductive composition. 12. The method of claim 3, wherein the first polymer and/or the second polymer is a thermoplastic, a thermoset, or a combination of a thermoplastic with a thermoset. 13. The method of claim 3, wherein the first polymer and/or the second polymer is a polyacetal, a polyacrylic, a polyarylene ether, a polycarbonate, a polystyrene, a polyester, a polyamide, a polyamideimide, a polyarylate, a polyurethane, a polyarylsulfone, a polyethersulfone, a polyarylene sulfide, a polyvinyl chloride, a polyetherimide, a polyimide, a polytetrafluoroethylene, a polyetherketone, a polyether ether ketone or a combination comprising at least one of the foregoing polymeric resins. 14. The method of claim 3, wherein the first polymer is a polyamide and wherein the second polymer is a polyarylene ether. 15. The method of claim 3, wherein the electrically conductive composition comprises a compatibilizer and an impact modifier. 16. The method of claim 3, wherein the electrically conductive composition has a specific volume resistivity of less than or equal to about 10e8 ohm-cm, a notched Izod impact strength of greater than 10 kilojoules/square meter and a Class A surface finish. 17. The method of claim 3, wherein the electrically conductive composition has a specific volume resistivity of less than or equal to about 10e8 ohm-cm and a notched Izod impact strength of greater than 15 kilojoules/square meter. 18. A method of manufacturing an electrically conductive composition comprising: mixing a molten masterbatch with a polyamide in a first extruder, wherein the polyamide has a melt viscosity that is lower than the melt viscosity of the molten masterbatch; reducing the melt viscosity of the molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a polyarylene ether in a second extruder to form the electrically conductive composition. 19. The method of claim 18, wherein the molten masterbatch comprises a polyamide and carbon nanotubes. 20. The method of claim 18, wherein the polyarylene ether is compatibilized with a polyamide prior to the mixing with the reduced viscosity molten masterbatch. 21. The method of claim 18, further comprising molding the electrically conductive composition.
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