Anti-static resin composition containing fluorinated phosphonium sulfonates
AssigneeGeneral Electric Company
InventorsJohannes Gerardus Henricus Willems, Theodorus L. Hoeks
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Abstract
An anti-static thermoplastic resin composition of 90-99.95 weight % of a thermoplastic resin and correspondingly 10 to 0.05 weight % of a halogenated carbon sulfonic acid salt of a polysubstituted phosphonium compound such as a fluorinated phosphonium sulfonate and wherein the thermoplastic resin is either an aromatic polycarbonate, polyetherimide, polyester, polyphenylene ether, polyphenylene ether/styrene polymer blend, polyamide, polyketone, acrylonitrile-butadiene-styrene, blends thereof and blends thereof with other materials. Preferably the thermoplastic resin is a transparent aromatic polycarbonate.
Claims44
A method for making a molded article comprising a thermoplastic resin composition having enhanced antistatic properties made by the process comprising the steps of adding an effective amount of an antistatic agent to a thermoplastic resin, and mixing together the agent and the thermoplastic resin at the time of polymer production or fabrication of the molded article by molding and molding a molded article from the mixed-together agent and thermoplastic resin, wherein the antistatic agent has the following formula:
- wherein X is independently selected from the group consisting of bromine, chlorine, fluorine, iodine and hydrogen, provided that at least one X is selected from the group consisting of bromine, chlorine, fluorine and iodine;
- n, m and m p are integers from 0 to 12;
- with the proviso that when p is an integer from 1-12, Y is zero a single bond or is selected from the group consisting of nitrogen, oxygen, sulfur, selenium, phosphorus and arsenic, and when p is 0, m is 1 to 12, Y is selected from the group consisting of nitrogen, oxygen, sulfur, selenium, phosphorus and arsenic;
- R1, R2 R3 are the same as each other, and are selected from the group consisting of an aliphatic hydrocarbon radical of 1-8 carbon atoms and an aromatic hydrocarbon radical of 6-12 carbon atoms;
- and R4 is a hydrocarbon radical of 1-18 carbon atoms.
A molded article comprising a thermoplastic resin composition having enhanced antistatic properties made by the process of adding an effective amount of an antistatic agent to a thermoplastic resin, and mixing together the agent and the thermoplastic resin at the time of polymer production or fabrication of the molded article by molding, wherein the antistatic agent has the following formula:
- wherein X is independently selected from the group consisting of bromine, chlorine, fluorine, iodine and hydrogen, provided that at least one X is selected from the group consisting of bromine, chlorine, fluorine and iodine;
- n, m and m p are integers from 0 to 12;
- with the proviso when p is an integer from 1-12, Y is zero a single bond or is selected from the group consisting of nitrogen, oxygen, sulfur, selenium, phosphorus and arsenic, and when p is 0, m is 1-2, Y is selected from the group consisting of nitrogen, oxygen, sulfur, selenium, phosphorus and arsenic;
- R1, R2 and R3 are the same as each other, and are selected from the group consisting of an aliphatic hydrocarbon radical of 1-8 carbon atoms and an aromatic hydrocarbon radical of 6-12 carbon atoms;
- and R4 is a hydrocarbon radical of 1-18 carbon atoms.
A method for reducing static charge associated with a thermoplastic resin, comprising the step of adding to the thermoplastic resin 0.2 to 1.5 wt % of a thermally stable antistatic agent of the formula
- wherein X is independently selected from fluorine or hydrogen and at least one X equals fluorine, Y is selected from the group consisting of a single bond, nitrogen, oxygen, sulfur, selenium, phosphorus and arsenic, n=0-12, m=1-12, p=0-12;
- wherein R1, R2, R3 are the same as each other and are selected from the group consisting of an aliphatic hydrocarbon radical of 1-8 carbon atoms and an aromatic hydrocarbon radical of 6-12 carbon atoms;
- and wherein R4 is a hydrocarbon radical of 1-18 carbon atoms.
A thermoplastic resin composition comprising
- (a) a thermoplastic resin, and
- (b) 0.2 to 1.5% by weight of the total composition of a thermally stable antistatic agent selected from the formula
- wherein m is an integer of from 1-12;
- R1, R2 and R3 are the same as each other and are aliphatic hydrocarbon radical of 1-8 carbon atoms or an aromatic hydrocarbon radical of 6-12 carbon atoms;
- and R4 is a hydrocarbon radical of 1-18 carbon atoms.
A thermoplastic resin composition comprising
- (a) a thermoplastic resin, and
- (b) 0.2 to 1.5% by weight of the total composition of a thermally stable antistatic agent selected of the formula CX3(CX2)yO(CX2)zSO3− +PR4 where every X independently equals F or H and at least one X equals F, y=0-12, z=1-12;
- three of the four R groups are the same as each other and are selected from the group consisting of aliphatic hydrocarbon radicals of 1-8 carbon and aromatic hydrocarbon radicals of 6-12 carbon atoms;
- and the fourth R group is a hydrocarbon radical of 1-18 carbon atoms.
Dependencies are inferred from the claim text.