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US 2014/0197367 A1Published application
Broadening of Percolation Slope in Conductive Carbon Black Compositions with at least One Non-Conductive Polymer
AssigneeSabic Innovative Plastics IP B.V.
InventorsAnton Kumanan, Reema Sinha, Susanta Mitra, Uchiyama Tatsuya
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Abstract
The present disclosure relates to thermoplastic electrostatic dissipative (ESD) composites. The disclosed compositions comprise a thermoplastic resin phase and a filler composition comprising a conductive carbon black and a non-conductive polymer, dispersed within the thermoplastic resin phase. Also disclosed are methods for the manufacture of the disclosed composites and articles of manufacture comprising same.
Claims43
An electrostatic dissipative composite, comprising
- a) a continuous thermoplastic polymer phase;
- and
- b) at least one dispersed filler phase comprised of a filler composition, comprising
- i. a conductive carbon black;
- and
- ii. a non-conductive polymer;
- wherein the filler composition is present in a volume percentage loading in the range of from 7.4 to 10.5 relative to a total volume of the composite;
- and
- wherein the composite exhibits a surface resistivity in the range of from 106 ohm/sq to 109 ohm/sq.
6 more elements
An electrostatic dissipative composite, comprising
- a) a crystalline continuous thermoplastic polymer phase;
- and
- b) at least one dispersed filler phase comprised of a filler composition, comprising
- i. a conductive carbon black;
- and
- ii. a non-conductive polymer;
- wherein the filler composition is present in a volume percentage loading in the range of from 5.0 to 6.0 relative to a total volume of the composite;
- and
- wherein the composite exhibits a surface resistivity in the range of from 106 ohm/sq to 109 ohm/sq.
6 more elements
An electrostatic dissipative composite, comprising
- a) a continuous thermoplastic polymer phase;
- and
- b) at least one dispersed filler phase comprised of a filler composition, comprising
- i. a conductive carbon black;
- and
- ii. a non-conductive polymer;
- wherein the composite exhibits a tolerance level in the range of from ±0.37 to ±1.0.
4 more elements
An electrostatic dissipative composite, comprising
- a) a continuous thermoplastic polymer phase comprising at least one bisphenol A polycarbonate;
- and
- b) at least one dispersed filler phase comprised of a filler composition, comprising
- i. ENSACO 250G conductive carbon black;
- and
- ii. at least one non-conductive polymer selected from the group consisting of styrene-acrylonitrile copolymer encapsulated polytetrafluoroethylene and MIPELON XM 221U ultra-high molecular weight polyethylene;
- wherein the filler composition is present in a volume percentage loading in the range of from 7.4 to 10.5 relative to a total volume of the composite;
- wherein the non-conductive polymer is present in an amount in the range of from 15 to 25 weight % relative to the total filler loading;
- and
- wherein the composite exhibits a surface resistivity in the range of from 106 ohm/sq to 109 ohm/sq.
7 more elements
An electrostatic dissipative composite, comprising
- a) a crystalline continuous thermoplastic polymer phase comprising polybutylene terephthalate;
- and
- b) at least one dispersed filler phase comprised of a filler composition, comprising
- i. ENSACO 250G conductive carbon black;
- and
- ii. MIPELON XM 221U ultra-high molecular weight polyethylene;
- wherein the filler composition is present in a volume percentage loading in the range of from 5.0 to 6.0 relative to a total volume of the composite;
- wherein the non-conductive polymer is present in an amount in the range of from 15 to 25 weight % relative to the total filler loading;
- and
- wherein the composition exhibits a surface resistivity in the range of from 106 ohm/sq to 109 ohm/sq.
7 more elements
An electrostatic dissipative composite, comprising
- a) a continuous thermoplastic polymer phase comprising at least one polymer selected from the group consisting of polybutylene terephthalate and polycarbonate;
- and
- b) at least one dispersed filler phase comprised of a filler composition, comprising
- i. ENSACO 250G conductive carbon black;
- and
- ii. at least one non-conductive polymer selected from the group consisting of styrene-acrylonitrile copolymer encapsulated polytetrafluoroethylene and MIPELON XM 221U ultra-high molecular weight polyethylene;
- wherein the non-conductive polymer is present in an amount in the range of from 15 to 25 weight % relative to a total filler loading;
- and
- wherein the composite exhibits a tolerance level in the range of from ±0.37 to ±1.0.
6 more elements
A method for the manufacture of an electrostatic dissipative composite, comprising the steps of:
- a) providing a thermoplastic polymer composition;
- b) providing a filler composition, comprising
- i. a conductive carbon black;
- and
- ii. a non-conductive polymer;
- c) combining the filler composition and the thermoplastic resin to provide a composite,
- wherein the filler composition is present in the provided composite in a volume percentage loading in the range of from 7.4 to 10.5 relative to a total volume of the composite;
- and wherein the provided composite exhibits a surface resistivity in the range of from 106 ohm/sq to 109 ohm/sq.
5 more elements
A method for the manufacture of an electrostatic dissipative composite, comprising the steps of:
- a) providing a crystalline thermoplastic polymer composition;
- b) providing a filler composition, comprising
- i. a conductive carbon black;
- and
- ii. a non-conductive polymer;
- c) combining the filler composition and the thermoplastic polymer composition to provide a composite,
- wherein the filler composition is present in the provided composite in a volume percentage loading in the range of from 5.0 to 6.0 relative to a total volume of the composite;
- and wherein the provided composite exhibits a surface resistivity in the range of from 106 ohm/sq to 109 ohm/sq.
5 more elements
A method for the manufacture of an electrostatic dissipative composite, comprising the steps of:
- a) providing a thermoplastic polymer composition;
- b) providing a filler composition comprising
- i. a conductive carbon black;
- and
- ii. a non-conductive polymer;
- c) combining the filler composition and the thermoplastic polymer composition to provide a composite;
- wherein the provided composite exhibits a tolerance level in the range of from ±0.37 to ±1.0.
4 more elements
Dependencies are inferred from the claim text.