Modification process of synthetic silica powder and its...

Details Modification process of synthetic silica powder and its... Modification process of synthetic silica powder and its...

2002-11-26

2010-06-15

Nguyen, Ngoc-Yen M (Department: 1793)

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

C423S335000, C502S012000, C502S054000, C502S133000, C502S154000

Reexamination Certificate

active

07736613

ABSTRACT:
A modified synthetic silica powder is produced by heating in vacuum an amorphous synthetic silica powder produced by a sol-gel process, and then cooling the heated silica powder in an atmosphere containing helium. When the modified synthetic silica powder is fused and vitrified in a process of crucible production, the resulting quartz glass crucible contains hardly any bubbles.

REFERENCES:
patent: 4072489 (1978-02-01), Loxley et al.
patent: 4317668 (1982-03-01), Susa et al.
patent: 4956208 (1990-09-01), Uchikawa et al.
patent: 4979973 (1990-12-01), Takita et al.
patent: 5185020 (1993-02-01), Satoh et al.
patent: 6849242 (2005-02-01), Koeppler et al.
patent: 2002/0115757 (2002-08-01), Murschall et al.
patent: 2002/0166341 (2002-11-01), Shelley et al.
patent: 2003/0125187 (2003-07-01), Akimoto et al.
patent: 195 41 372 (1996-05-01), None
patent: 0 530 825 (1993-03-01), None
patent: 1 167 309 (2002-01-01), None
patent: 1-148782 (1989-06-01), None
patent: 03-086249 (1991-04-01), None
patent: 07-172978 (1995-07-01), None
patent: 2530225 (1996-06-01), None
patent: 09-086916 (1997-03-01), None
patent: 10-287416 (1998-10-01), None
patent: 11-049597 (1999-02-01), None
patent: 2001-261353 (2001-09-01), None
Webster's II, New Riverside University Dictionary, 1984 (no month), p. 376.

Affiliated with

Also associated with

Rating

Modification process of synthetic silica powder and its... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modification process of synthetic silica powder and its..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modification process of synthetic silica powder and its... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4166933