METHOD FOR MANUFACTURE OF LARGE-SIZED ARTICLES FROM SMALL FRACTION OF NATURAL AMBER Russian patent published in 2002 - IPC

Abstract RU 2191704 C2

FIELD: production of ornamental articles. SUBSTANCE: method involves preliminary selection of about 10 mm size amber pieces; charging raw material into slightly heated compression molds; heating in compression mold without access of air to temperature not in the excess of 140 C; pressing under pressure not exceeding 100 atm, with following cooling in natural conditions. EFFECT: provision for producing articles possessing physical, chemical, aesthetic and curative properties of natural monolithic amber. 9 cl, 1 dwg

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RU 2 191 704 C2

Authors

Chernokhatskij O.N.

Dates

2002-10-27Published

2001-01-31Filed