Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source
Patent
1982-05-06
1983-12-13
Lusignan, Michael R.
Stock material or miscellaneous articles
Hollow or container type article
Cellular material derived from plant or animal source
427 2, 4273977, 428446, 604403, 604408, A01N 102, B05D 302, B32B 904
Patent
active
044205171
ABSTRACT:
A process is provided for enhancing the uniformity of silica coatings on substrates, such as evacuated blood collection tubes for example, which increased uniformity results in a substantial increase in the active surface area of the silica for improved clot activation. The process includes hydrolyzing a mixture of ethylsilicate and isopropyl alcohol in the presence of an acid or alkaline solution to precipitate out the silica. The silica sol which results is applied to the substrate, and dried in the presence of low heat application. Alternatively, the silica sol may be mixed with a water soluble carrier such as polyvinyl pyrrolidone, if desired, prior to application to the substrate, if the silica is to be released into a water based substance, such as blood, for example subsequently introduced into the coated container.
REFERENCES:
patent: 2855329 (1958-10-01), Morton
patent: 4069185 (1978-01-01), Sullivan
patent: 4112925 (1978-09-01), Sullivan
patent: 4153739 (1979-05-01), Kessler
patent: 4257886 (1981-03-01), Kessler
Properties and Applications of Oxide Layers Deposited on Glass from Organic Solutions, H. Schroeder, Oct. 20. 1961.
Ultrapure SiO.sub.2 and Al.sub.2 O.sub.3 for the preparation of Low Loss Compound Glasses, Gossink, R. G. et al., Mat. Res. Bull., vol. 10, pp. 35-40, 1975.
Monolithic Glass Formation by Chemical Polymerization, Yolbas, B. E., Journal of Materials Science, vol. 14, 1979.
Preparation of a gel from Metal Alkoxide and Its Properties as a Precursor of Oxide Glass, Yamanc, Masayuki; Journal of Materials Science, vol. 13, 1978.
Preparation of Glasses and Ceramics from Metal-Organic Compounds, Yoldas, B. E., Journal of Materials Science, vol. 12, 1977.
Silicon Compounds, Register and Review, a catalog of Petrarch Systems, Inc.
Low-Heat Glass Aims for High Technology, Chemical Week, p. 65, Jun. 18, 1980.
Becton Dickinson and Company
Lusignan Michael R.
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