Dynamic information storage or retrieval – Storage medium structure – Layered
Patent
1979-08-09
1981-06-23
Robinson, Ellis P.
Dynamic information storage or retrieval
Storage medium structure
Layered
346137, 3581285, 428 64, 428447, 428 65, 369126, 369276, B32B 302, G11B 574
Patent
active
042751012
ABSTRACT:
Molecular distillation of methyl alkyl siloxanes of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl groups of 4-20 carbon atoms and m and p are integers to produce a distillate having a molecular weight fraction wherein the sum of m and p is about 4, produces an improved lubricant for the video disc, a lubricant that is stable to long term storage and to wide variations in temperature and relative humidity.
REFERENCES:
patent: 3833408 (1974-09-01), Matthies
patent: 4005242 (1977-01-01), Itopke
patent: 4069360 (1978-01-01), Yanagisawa
patent: 4159276 (1979-06-01), Dessi
Ekstrom Lincoln
Lausman Thomas C.
Wang Chih C.
Wielicki Henry
Christoffersen H.
Morris Birgit E.
RCA Corporation
Robinson Ellis P.
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