Inventors:
Leonard S. Lee - Daly City CA
Yoshio Uyeda - San Mateo CA
Samuel W. Sopp - Foster City CA
Assignee:
Merck & Co., Inc. - Rahway NJ
International Classification:
B23K 3524
C04B 3504
Abstract:
Novel amorphous magnesia-silica complexes containing from about 0. 001 to 2. 0 percent by weight of an alkali metal oxide, wherein the mole ratio of MgO:SiO. sub. 2 of said complexes is from about 1:25 to 14:1.