Highly fluorinated ionic liquids as boundary lubricants
AssigneeUniversity of Pittsburgh—Of the Commonwealth System of Higher Education
InventorsLei Li, Bingchen Wang
Life of this patent
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Abstract
An ionic liquid comprising: a cation (or conjugate acid), wherein the cation (or conjugate acid) is represented by General Formula (A) below or General Formula (B) below or General Formula (C) or General Formula (D) below or General Formula (E) below: wherein R1 represents CH2CH2(CF2)nCF3, where n is an integer ranging from 0 to 7, or an alkyl chain CH3, or CH2OH, or CH2CH2OH; R2 represents CH2CH2(CF2)nCF3, where n is an integer ranging from 0 to 7, or a hydrogen atom H, or CH2OH, or CH2CH2OH; and R3 represents CH2CH2(CF2)nCF3, where n is an integer ranging from 0 to 7.
Claims8
An ionic liquid comprising:
- a cation (or conjugate acid), wherein the cation (or conjugate acid) is represented by General Formula (A) below or General Formula (B) below or General Formula (C) or General Formula (D) below or General Formula (E):
- wherein R1 represents CH2CH2(CF2)nCF3, where n is an integer ranging from 0 to 7, or an alkyl chain CH3, or CH2OH, or CH2CH2OH;
- R2 represents CH2CH2(CF2)nCF3, where n is an integer ranging from 0 to 7, or a hydrogen atom H, or CH2OH, or CH2CH2OH;
- and R3 represents CH2CH2(CF2)nCF3, where n is an integer ranging from 0 to 7;
- and
- an anion (or conjugate base) comprising bis(trifluoromethanesulfonimide) or tris(pentafluoroethyl)trifluorophosphate or an anion (or conjugate base), wherein the anion (or conjugate base) is represented by General Formula (Z) below:
- XYn X=F3 (n=3)
- Y═(CF2)mCF3 (m=0, 1, 2, . . . ) General Formula (Z)
- wherein X represents PF3 with “n” equaling 3;
- and wherein Y represents (CF2)mCF3 with “m” equaling 0, 1, 2, 3, 4, 5 or 6.
Dependencies are inferred from the claim text.