Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1982-12-10
1984-10-02
Pertilla, Theodore E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
71119, 71123, 524843, 524844, 528245, C08L 6124, C08G 1212
Patent
active
044749252
ABSTRACT:
An improvement in a process for the preparation of neutralized urea aldehyde polmeric dispersions by acid catalyzed reaction of urea with formaldehyde plus a higher aldehyde having from two to four carbon atoms wherein the improvement comprises reacting urea with formaldehyde and a polyfunctional aldehyde selected from the group consisting of a dialdehyde of from 2 to 5 carbon atoms or a polymer of formaldehyde such as a hydroxyaldehyde or polysaccharide which has a reactive, reducible aldehyde group wherein the mole ratio of formaldehyde to the polyfunctional aldehyde is at least 3:1. The products are useful as long term, sprayable fertilizers, especially for grasses.
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patent: 4244727 (1981-01-01), Moore, Jr.
patent: 4298512 (1981-11-01), Sartoretto et al.
patent: 4332610 (1982-06-01), Sartoretto et al.
Official Methods of Analysis of the Association of Official Agricultural Chemists, 11th Ed., 1970 pp. 18, 19.
Karrer, Paul, "Organic Chemistry", Elsevier Pub. Co. Inc., N.Y., Amsterdam, London, Brussels, 3rd Eng. Edition, pp. 312, 313, 1947.
Cooke, T. F. and H. D. Weigmann, Textile Chemist and Colorist, vol. 14, No. 5, p. 100 (1982) and vol. 14, No. 6, p. 136 (1982).
Sampathkumar Prathivadibhayankaram S.
Sartoretto Paul
Pertilla Theodore E.
W. A. Cleary Chemical Corporation
Wilson Abraham
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