Glass-ceramics displaying inherent lubricity

Details Glass-ceramics displaying inherent lubricity Glass-ceramics displaying inherent lubricity

1977-08-04

1978-10-03

Bashore, S. Leon

Compositions: coating or plastic

Coating or plastic compositions

Marking

65 33, 106 397, 106 398, C03B 3200, C03C 322

Patent

active

041182375

ABSTRACT:
The instant invention is related to the production of glass-ceramic articles which exhibit a hydrophobic character and an inherent tactile quality of being slippery or oily to the touch. Such articles are dervived from compositions within the MgO--Al.sub.2 O.sub.3 --SiO.sub.2 --F quaternary and contain the humite mineral norbergite (Mg.sub.2 SiO.sub.4. MgF.sub.2) as a major crystal phase. The intrinsic hydrophobic character and lubricity of the inventive compositions recommend their utility in such applications as (1) high temperature bearing or other low friction mechanical devices, an (2) non-sticking and easily-cleaned culinary ware.

REFERENCES:
patent: 3801295 (1974-04-01), Beal et al.
patent: 3905824 (1975-09-01), Grossman
patent: 3939056 (1974-10-01), Grossman
patent: 3985531 (1976-10-01), Grossman
patent: 3985534 (1976-12-01), Flannery et al.
patent: 4018612 (1977-04-01), Chyung
patent: 4063955 (1977-12-01), Fritsch et al.

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