Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1988-05-02
1989-03-07
Willis, Prince E.
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106 70, 106 23, 106 26, 10628734, 106436, 106482, 106 74, C09D 100
Patent
active
048103004
ABSTRACT:
A composition to produce an adherent and water insoluble deposit on substrate surfaces. A coating material for these surfaces is described which can be applied at any temperature up to at least 2,000 degrees Fahrenheit, with the resultant deposit (after drying) being highly adherent and water insoluble. This coating has a liquid phase formed from at least water, a pre-reacted lithium silicate, and unreacted lithium hydroxide monohydrate. Preferably, the liquid phase contains a dispersent in the form of a clay, for example. Typically the pre-reacted Li.sub.2 O-SiO.sub.2 has a SiO.sub.2 :Li.sub.2 O molar ratio of about 4.6:1, and the unreacted LiOH.H.sub.2 O provides from 1/3 to 2/3 the total lithium oxide content, giving a final SiO:Li.sub.2 O molar ratio of the composition of from about 1.71:1 to about 2.97:1. To this liquid phase is added a suitable pigment or other refractory material, at about 6-80 wt % based upon the liquid phase. A range of compositions is discussed as well as typical results. This includes graphite, oxides, borides, nitrides, carbides, sulfides, metals and mixtures thereof. The particular refractory material must be stable in the highly basic condition of the liquid phase.
REFERENCES:
patent: 2668149 (1954-02-01), Iier
patent: 2978361 (1961-04-01), Seidl
patent: 3180746 (1965-04-01), Patton et al.
patent: 4066598 (1978-01-01), Deer et al.
patent: 4479824 (1984-10-01), Schuff
Chapman Lloyd R.
Holcombe, Jr. Cressie E.
Thompson Willie J.
Willis Prince E.
ZYP Coatings, Inc.
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