Compositions: coating or plastic – Coating or plastic compositions – Molds and mold coating compositions
Patent
1985-06-10
1986-08-05
Lin, Kuang Y.
Compositions: coating or plastic
Coating or plastic compositions
Molds and mold coating compositions
164520, 164528, 164516, 164518, 106114, 106 35, B22C 108
Patent
active
046041427
ABSTRACT:
An investment material for dental casting comprises 100 parts by weight of a mixture of hemihydrate gypsum, quartz and/or cristobalite and 2 to 5 parts by weight of natural starch optionally with 0.1 to 1.0 part by weight of soluble starch.
Hayashi Shohei
Kamohara Hiroshi
Ohi Nobukazu
G-C Dental Industrial Corp.
Lin Kuang Y.
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