Coating processes – With pretreatment of the base – Preapplied reactant or reaction promoter or hardener
Patent
1978-09-12
1979-11-20
Beck, Shrive P.
Coating processes
With pretreatment of the base
Preapplied reactant or reaction promoter or hardener
427 4, 427343, 427399, 427430R, 427430A, 427430B, 428 15, 428538, B05D 300, B05D 310
Patent
active
041751469
ABSTRACT:
Pearls, corals, shells and the like are composed mainly of calcium carbonate and, therefore, they have the disadvantages that they are weak mechanically and have poor resistance to salt. In the case of using those natural products as decorative accessories such as jewelry, it is possible to prepare accessories which are less likely to crack and are more resistant to perspiration while keeping the original luster characteristic of the natural products by coating the surfaces of those accessories with fluorides in order to improve the hardness of the surfaces, and then subjecting them to further treatment with silicon compounds and non-ionic surface active agents to improve the resistance of the surfaces against acids, alkalis and salts.
REFERENCES:
patent: 2211593 (1940-08-01), Colton et al.
patent: 2288633 (1942-07-01), Luckhaupt
patent: 3403035 (1968-09-01), Schneble et al.
patent: 3943267 (1976-03-01), Randol
patent: 3955018 (1976-05-01), Liberto
patent: 3995371 (1976-12-01), O'Keefe
Ito Tateo
Kaneko Tomijiro
Beck Shrive P.
Obata Industry & Commerce Co., Ltd.
LandOfFree
Method for improving the properties of natural products composed does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for improving the properties of natural products composed, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for improving the properties of natural products composed will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-873121