Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1992-03-27
1993-10-05
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528 59, 528 61, 528 64, 528 65, C08G 1870
Patent
active
052506509
ABSTRACT:
A polyurethane coating which is chip resistant and resistant to chemical decontamination treatments which is made by reacting one component made up of isocyanate-reactive materials and a second isocyanate component. The first component includes an aromatic polyamine (preferably an aromatic diamine) and a hydroxyl terminated polyether or polyester in amounts such that the equivalent ratio of amine to hydroxyl groups is from about 80:20 to about 97:3. The second isocyanate component includes an aromatic polyisocyanate or a prepolymer of an aromatic polyisocyanate and a polyisocyanate adduct formed from either toluene diisocyanate or an aliphatic polyisocyanate in amounts such that the ratio of aromatic polyisocyanate to polyisocyanate adduct is in the range of from about 50:50 to about 75:25. Each of these components is combined, preferably in the presence of a solvent in quantities such that the equivalent ratio of isocyanate groups to isocyanate-reactive groups is in the range of from about 1.1 to about 1.0. The components may be reacted at ambient temperature. The coating material formed by this reaction is particularly useful in coating vehicles such as automobiles.
REFERENCES:
patent: 5079325 (1992-01-01), Kano et al.
Best Kurt E.
Boretzky Leon N.
McClurg David C.
Wallace Angela I.
Foelak Morton
Gil Joseph C.
Miles Inc.
Truong Duc
Whalen Lyndanne M.
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