Easy-to-clean glass or glass-ceramic cookware in the alkaline ea

Details Easy-to-clean glass or glass-ceramic cookware in the alkaline ea Easy-to-clean glass or glass-ceramic cookware in the alkaline ea

1981-02-25

1982-11-23

Bell, Mark

Stock material or miscellaneous articles

Surface property or characteristic of web, sheet or block

Surface modified glass

501 8, 501 9, 501 32, B32B 900, B32B 1706, C03C 310, C03C 322

Patent

active

043605672

ABSTRACT:
The present invention is directed to the production of glass and glass-ceramic compositions which have particular utility as culinary utensils inasmuch as they are exceptionally easy to clean after food has been burned thereon. The products have at least an integral surface layer which contains MgO-based and/or CaO-based and/or SrO-based and/or BaO-based crystals as the predominant crystal phase. Operable compositions consist essentially, expressed in weight percent on the oxide basis, of 14.8-19.6% MgO, 16.2-20.0% Al.sub.2 O.sub.3, and 58.7-66.5% SiO.sub.2, when said surface layer contains MgO-based crystals as the predominant crystal phase, 22.2-31.6% CaO, 42.8-53.9% Al.sub.2 O.sub.3, and 23.8-33.6% SiO.sub.2, when said surface layer contains CaO-based crystals as the predominant crystal phase, 31-48% SrO, 24-35.7% Al.sub.2 O.sub.3, and 28-35% SiO.sub.2, when said surface layer contains SrO-based crystals as the predominant crystal phase, and 42.4-45% BaO, 10-15.9% Al.sub.2 O.sub.3, and 41.7-45% SiO.sub.2, when said surface layer contains BaO-based crystals as the predominant crystal phase.

REFERENCES:
patent: 3022179 (1962-02-01), Morrissey
patent: 3022180 (1962-02-01), Morrissey et al.
patent: 3201266 (1965-08-01), MacDowell
patent: 3272610 (1966-09-01), Eppler et al.
patent: 3275493 (1966-09-01), MacDowell
patent: 3531303 (1970-09-01), Bahat
patent: 3772041 (1973-11-01), Tochon
patent: 3837978 (1974-09-01), Basdiecker
patent: 3998617 (1976-12-01), Gliemeroth
patent: 4015048 (1977-03-01), Martin

Affiliated with

Also associated with

Rating

Easy-to-clean glass or glass-ceramic cookware in the alkaline ea does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Easy-to-clean glass or glass-ceramic cookware in the alkaline ea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Easy-to-clean glass or glass-ceramic cookware in the alkaline ea will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1879303