Granted Patent
B2
US 8,409,346 · App. 12/572,812 · Granted Apr 2, 2013
Waste storage vessels and compositions therefor
Assignee:
Grancrete, Inc.
View Patent ↗
Loading inventors, assignments & file history…
Abstract
Waste storage vessels formed from a composition including calcium silicate, magnesium or calcium oxides and an acid phosphate are provided. The composition may also include fly ash or kaolin with or without the calcium silicate.
Claims (2)
1. The waste storage vessel having an attenuation coefficient as compared to conventional Portland cement concrete based on photo energies of 0.662 MeV (5 μCi Cs-137 source) and 1.173 MeV (1 μCi Co-60 source) comprising 15 to 35 percent by weight calcined magnesium oxide or calcium oxide, 15 to 55 percent by weight acid phosphate and 20 to 40 percent by weight kaolin.
2. The waste storage vessel of claim 1 , wherein the acid phosphate is monopotassium phosphate.
Assignments (4)
CHANGE OF NAME
Recorded May 30, 2026
From: JEFFERSON SCIENCES ASSOCIATES, LLC
To: SURATECH
Reel/Frame 074803/0620 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Sep 10, 2019
From: MAG PHOS INC.
To: ARMAKAP TECHNOLOGIES LLC
Reel/Frame 050330/0936 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Mar 15, 2018
From: GRANCRETE, INC.
To: MAG PHOS, INC.
Reel/Frame 045223/0440 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Oct 15, 2009
From: SELPH, JEFFREY L.; PAUL, JAMES W., JR.
To: GRANCRETE, INC.
Reel/Frame 023376/0866 →
Continuity (1)