The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2017
Filed:
May. 14, 2013
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventor:
Gang Qi, Stillwater, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/078 (2006.01); C03C 3/083 (2006.01); C03C 3/089 (2006.01); C03C 3/097 (2006.01); C03C 11/00 (2006.01); C03C 1/00 (2006.01);
U.S. Cl.
CPC ...
C03C 11/002 (2013.01); C03C 1/002 (2013.01); C03C 3/083 (2013.01); C03C 3/089 (2013.01); C03C 3/097 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2006/10 (2013.01); Y10T 428/2982 (2015.01);
Abstract
Glass particles comprise glass microbubbles. The glass particles have a size distribution with a din the range of from 15 to 100 microns, and have a true density of less than 0.7 g/cm. The glass particles comprise, on an equivalent weight basis: from 50 to 70 weight percent silica; from 2 to 7 weight percent of boria; from 0.5 to 4 weight percent of weight zinc oxide; from 8 to 17 weight percent of calcia; from 0.8 to 7 weight percent of phosphorus pentoxide; and from 2 to 9 weight percent of sodium oxide.