High density information record lubricants

In a high density information record adapted for use with a playback stylus to effect recovery of signals occupying a bandwidth of at least several megahertz when relative motion at a desired rate is established between said record and said stylus, said record comprising a disc of a conductive material containing an information track constituted by a surface relief pattern in said track to accommodate recovery of signals of said bandwidth upon establishment of relative motion at said rate, said record being coated with a methyl alkyl siloxane lubricant having the formula ##STR11## wherein R.sub.1 and R.sub.2 are alkyl groups of 4-20 carbon atoms, x is an integer of 2-4, y is an integer of 0-2 and wherein the sum of x and y is 4 or less, the improvement which comprises adding to said lubricant at least two dopants, at least one of which is selected from the following three classes having the formulas ##STR12## wherein R.sub.3 is hydrogen, lower alkyl or hydroxyalkyl;

• R.sub.4 is R.sub.6 A wherein R.sub.6 is an alkyl group of 1-5 carbon atoms and A is hydroxyl or carboxyl;
• R.sub.5 can be R.sub.7 A wherein R.sub.7 is a straight chain alkyl group of 1-10 carbon atoms and A has the meaning given above or can be R.sub.7 A-B-R.sub.8 wherein R.sub.7 and A have the above meaning, B is a linking group which can be --O-- or --C.dbd.C-- and R.sub.8 is an alkyl group of 6-25 carbon atoms, or their corresponding ammonium salt of the formula ##STR13## wherein R.sub.7, R.sub.8, A and B have the above meanings and X can be an anion;
• ##STR14## wherein R.sub.9 and R.sub.11 can be methyl or ethyl and R.sub.10 and R.sub.12 are long chain alkyl groups of up to 20 carbon atoms;
• and ##STR15## wherein R.sub.13 is an alkyl group of 10-20 carbon atoms and R.sub.14 is an alkyl group of 1-5 carbon atoms wherein said second dopant is of a different dopant class.