Crystallized glass article having an irregular rough surface pat

Details Crystallized glass article having an irregular rough surface pat Crystallized glass article having an irregular rough surface pat

1989-11-01

1992-02-18

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of quartz or glass

428 15, 428212, 428426, 428325, 428701, 428702, 501 5, 501 11, 501 55, B32B 1706

Patent

active

050893459

ABSTRACT:
In a crystallized glass article consisting of crystallized glass masses fusion bonded together and having a principal surface, said principal surface having a surface pattern determined by said masses in a surface layer including said principal surface, said small crystallized glass masses in said surface layer are mainly of flaky crystallized glass pieces, each being a relatively large flattened piece, said flaky pieces overlapping one another at random to make said principal surface rough, said crystallized glass masses in another layer adjacent to and fused to said surface layer being considerably smaller than said flaky pieces. The article is produced by preparing flaky pieces and the smaller masses both of a SiO.sub.2 --Al.sub.2 O.sub.3 --CaO crystallizable glass, putting the former pieces on a bottom of a mold to form a flaky-piece layer, then putting the latter masses on the flaky-piece layer to form a small-mass layer, and heat treating the both layers at a temperature higher than a softening point of the crystallizable glass to fusion bond the pieces and masses together as well as crystallizing the glass.

REFERENCES:
patent: 2977264 (1961-03-01), Shapiro et al.
patent: 3929497 (1975-12-01), Clark-Monks
patent: 3955989 (1976-05-01), Nakamura
patent: 4045435 (1977-10-01), Sakane et al.
patent: 4464475 (1984-08-01), Beall
patent: 4519828 (1985-05-01), Beall
patent: 4526873 (1985-07-01), Beall
patent: 4883705 (1989-11-01), Kawakami
patent: 4887404 (1989-12-01), Saji
patent: 4957785 (1970-09-01), Fornadley
patent: 4978376 (1990-12-01), Takahashi et al.

Affiliated with

Also associated with

Rating

Crystallized glass article having an irregular rough surface pat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Crystallized glass article having an irregular rough surface pat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystallized glass article having an irregular rough surface pat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1822389