High-density information disc lubricant
AssigneeRCA Corporation
InventorEugene S. Poliniak
Life of this patent
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Abstract
Tetraphenyl siloxanes having the formula ##STR1## wherein R.sub.1 and R.sub.4 can be hydrogen or lower alkyl, R.sub.2 and R.sub.3 can be hydrogen, phenyl or lower alkyl and n is 0 or 1, when added to methyl alkyl siloxane lubricants for high-density information discs, improve the playback performance of the discs.
Claims6
In a high-density information record having a methyl alkyl siloxane lubricant on a surface thereof, the improvement comprising adding to said lubricant an effective amount of a tetraphenyl siloxane having the formula ##STR8## wherein R.sub.1 and R.sub.4 can be hydrogen or lower alkyl, R.sub.2 and R.sub.3 can be hydrogen, phenyl or lower alkyl and n is 0 or 1.
Dependencies are inferred from the claim text.