Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
GLASS BEADS AND USES THEREOF
Document Type and Number:
WIPO Patent Application WO2003035565
Kind Code:
A3
Abstract:
In one aspect, the invention provides glass beads and optical devices comprising the glass beads. In other aspects, the invention provides methods of making said glass beads and rapid glass screening methods that use glass beads. Glass beads of the invention comprise greater than 80 weight percent silica, active rare earth dopant, and modifying dopant. In another embodiment the glass beads comprise greater than 80 weight percent silica and at least 5 weight percent germania. In another embodiment, glass beads comprise and from 20 to 90 anion mole percent of non-oxide anion.

Inventors:
ANDERSON MARK T
BUDD KENTON D
ONSTOTT JAMES R
Application Number:
PCT/US2002/024097
Publication Date:
November 20, 2003
Filing Date:
July 30, 2002
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
C03B8/02; C03C3/06; C03C3/076; C03C3/23; G02B6/00; C03C3/32; C03C4/04; C03C12/00; C03C12/02; C03C23/00; H01S3/17; (IPC1-7): C03C12/00; C03C4/04; C03C23/00; G01N21/00
Domestic Patent References:
WO1996001735A11996-01-25
WO2001040130A12001-06-07
Foreign References:
US5039326A1991-08-13
US4789501A1988-12-06
US4567030A1986-01-28
US4200445A1980-04-29
US5108477A1992-04-28
EP0397568A21990-11-14
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31)
PATENT ABSTRACTS OF JAPAN vol. 018, no. 142 (P - 1706) 9 March 1994 (1994-03-09)
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12 3 January 2001 (2001-01-03)
PATENT ABSTRACTS OF JAPAN vol. 013, no. 001 (P - 808) 6 January 1989 (1989-01-06)
PATENT ABSTRACTS OF JAPAN vol. 009, no. 017 (C - 262) 24 January 1985 (1985-01-24)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: OPTICAL FIBRE AND PREFORM AS WELL AS THEIR MANUFACTURE FROM PHASE-SEPARATED GLASS

Next Patent: VACUUM DOUBLE GLAZING