Antistatic composition
AssigneesSanko Chemical Industry Co., Ltd., Riken Technos Corporation
InventorsNoriaki Fujihana, Yoshiharu Tatsukami, Masaki Enomoto, Ikuo Ohkoshi
Life of this patent
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Abstract
An antistatic composition containing various types of polymers such as a polyamide, an aliphatic polyester, an elastomer thereof and a polyurethane elastomer, and a metal salt in specific amounts, and preferably, an antistatic composition in which an additive component such as an organic compound which has an —{O(AO)n}— group (A represents an alkylene group having 2 to 4 carbon atoms, and n represents an integer of 1 to 7) and all molecular chain terminals of which are CH3 and/or CH2 groups is compounded as needed.
Claims12
An antistatic composition containing
- (A) a thermoplastic resin,
- (J) polyether segment-containing antistatic elastomers, and
- (B) at least one lithium salt selected from the group consisting of lithium bis(trifluoro-methanesulfonyl)imide and lithium tris(trifluoromethanesulfonyl)methide,
- wherein the amount of component (B) is from 0.003 to 12.5 parts by weight based on 100 parts by weight of component (A) and (J), and
- wherein said component (J) is contained in an amount of 20 to 5 parts by weight based on 80 to 95 parts by weight of said thermoplastic resin (A) (provided (A)+(J)=100 parts by weight),
- said antistatic composition being prepared by mixing components (A), (J), and (B) together at the same time or by mixing components (J) and (B) together and then mixing component (A) with the resulting mixture.
An antistatic composition containing
- (L) at least one polymer selected from the group consisting of natural rubber, styrene-butadiene rubber (SBR), isoprene rubber, ethylene-propylene rubber, an ethylene-propylene-diene monomer copolymer (EPDM), acrylonitrile-butadiene rubber (NBR), chloroprene rubber, epichlorohydrin rubber, a styrene-butadiene block copolymer, butyl rubber, fluorine rubber, silicone rubber and urethane rubber,
- (J) polyether segment-containing antistatic elastomers, and
- (B) at least one lithium salt selected from the group consisting of lithium bis(trifluoromethanesulfonyl)imide and lithium tris(trifluoromethanesulfonyl)methide,
- wherein the amount of component (B) is from 0.001 to 3.0 parts by weight based on 100 parts by weight of component (L) and (J), and
- wherein said component (J) is contained in an amount of 20 to 5 parts by weight based on 80 to 95 parts by weight of said thermoplastic resin (L) (provided (L)+(J)=100 parts by weight),
- said antistatic composition being prepared by mixing components (L), (J), and (B) together at the same time or by mixing components (J) and (B) together and then mixing component (L) with the resulting mixture.
A process for producing an antistatic composition containing (A) a thermoplastic resin, (J) polyether segment-containing antistatic elastomers, and (B) at least one lithium salt selected from the group consisting of lithium bis(trifluoromethanesulfonyl)imide and lithium tris(trifluoromethanesulfonyl)methide, wherein the amount of component (B) is from 0.003 to 12.5 parts by weight based on 100 parts by weight of component (A) and (J), and wherein said component (J) is contained in an amount of 20 to 5 parts by weight based on 80 to 95 parts by weight of said thermoplastic resin (A) (provided (A)+(J)=100 parts by weight), said process comprising a step of
- mixing components (A), (J), and (B) together at the same time or
- mixing components (J) and (B) together and then mixing component (A) with the resulting mixture.
A process for producing an antistatic composition containing (L) at least one polymer selected from the group consisting of natural rubber, styrene-butadiene rubber (SBR),
- isoprene rubber, ethylene-propylene rubber, an ethylene-propylene-diene monomer copolymer (EPDM), acrylonitrile-butadiene rubber (NBR), chloroprene rubber, epichlorohydrin rubber, a
- styrene-butadiene block copolymer, butyl rubber, fluorine rubber, silicone rubber and urethane rubber, (J) polyether segment-containing antistatic elastomers, and (B) at least one lithium salt selected from the group consisting of lithium bis(trifluoromethanesulfonyl)imide and lithium tris(trifluoromethanesulfonyl)methide, wherein the amount of component (B) is from 0.001 to 3.0 parts by weight based on 100 parts by weight of component (L) and (J), and wherein said component (J) is contained in an amount of 20 to 5 parts by weight based on 80 to 95 parts by weight of said thermoplastic resin (L) (provided (L)+(J)=100 parts by weight), said process comprising a step of
- mixing components (L), (J), and (B) together at the same time or
- mixing components (J) and (B) together and then mixing component (L) with the resulting mixture.
Dependencies are inferred from the claim text.