公开(公告)号：US3677779A

公开(公告)日：1972-07-18

申请号：US3677779D

申请日：1971-02-16

Applicant: BASIC INC

Inventor： HUGHEY VAUGHN V

IPC: C04B33/13 ,  C04B35/03 ,  C04B35/04

CPC classification number: C04B33/131 ,  C04B33/13 ,  C04B35/03

Abstract: A PROCESS OF IMPROVING THE HYDRATION RESISTANCE OF DEAD-BURNED MAGNESIA REFRACTORY PRODUCTS IN WHICH SUCH A DEAD-BURNED MAGNESIA PRODUCT IS TREATED WITH A B2O3 CONTAINING COMPOUND. THE MAGNESIA IS PREFERABLY HEATED TO A TEMPERATURE OF AT LEAST APPROXIMATELY 300* F., AND THE B2O3 COMPOUND IS PREFERABLY IN THE FORM OF A SOLUTION OR SUSPENSION HEATED TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 140 TO ABOUT 212* F. THE ADDITION OF B2O3 COMPOUND SHOULD BE SUFFICIENT TO ADD ABOUT 0.1 TO ABOUT 1% BY WEIGHT OF B2O3 TO THE DEAD-BURNED MAGNESIA.

公开(公告)号：US3518527A

公开(公告)日：1970-06-30

申请号：US3518527D

申请日：1968-05-01

Applicant: BASIC INC

Inventor： RUSSELL ROBERT E

IPC: H02M7/155 ,  H02M1/08

CPC classification number: H02M7/1557

公开(公告)号：US3316482A

公开(公告)日：1967-04-25

申请号：US35203864

申请日：1964-03-16

Applicant: BASIC INC

Inventor： MCVEY EUGENE S

IPC: H02M7/155

CPC classification number: H02M7/1557

公开(公告)号：US2814568A

公开(公告)日：1957-11-26

申请号：US38612753

申请日：1953-10-14

Applicant: BASIC INC

Inventor： PEARSON EDWARD P ,  SAMUEL RUSOFF

IPC: C04B33/13

CPC classification number: C04B33/1315 ,  C04B33/13

公开(公告)号：US2814567A

公开(公告)日：1957-11-26

申请号：US38612653

申请日：1953-10-14

Applicant: BASIC INC

Inventor： PEARSON EDWARD P ,  SAMUEL RUSOFF

IPC: C04B33/13

CPC classification number: C04B33/1315 ,  C04B33/13