B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
117/240, 18/906
B32B 9/02 (2006.01) B32B 27/04 (2006.01) B44C 5/00 (2006.01) B44C 5/06 (2006.01)
Patent
CA 1129273
ABSTRACT OF THE DISCLOSURE The present invention provides a material cons-sting of cleaned and de-greased tortoiseshell on which is coated a transparent or translucent plastics, or embedded therein. Preferred plastics are polymethyl methacrylate and epoxide resins. Sheets or pieces of tortoiseshell are cleaned in an acid bath, decreased in a solvent for fats, dried, and then are coated with a thermoplastic or thermo- setting transparent or translucent plastic or embedded therein, and finally the resulting product is polymerised and cured. The material so produced is useful for the manufacture of ornaments and utensils which have the same esthetic appeal as natural tortoiseshell (or even enhanced esthetic appeal), while at the same time the material has better moldability and processability than natural tortoiseshell.
320341
Cordone Roberto
Melchior K. Bernd
Gowling Lafleur Henderson Llp
Weinich & Co.
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