Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-11-16
1995-02-07
Sellers, Robert E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525527, 564104, C08L 6302
Patent
active
053876563
ABSTRACT:
A curing agent for epoxy resins having improved solubility characteristics has the formula ##STR1## where R is --CH.sub.2 C.sub.6 H.sub.4 X or --CH.sub.2 CH.sub.2 C.sub.6 H.sub.4 X,
and X is either --H, --CH.sub.3, --OCH.sub.3, --OH, or --NY,
and where Y is --H or CH.sub.3.
Such substituted cyanoguanidines are soluble in various solvents and do not require the use of undesirable solvents necessary with cyanoguanidine (dicyanodiamide) itself.
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May, Everette, "Attempts to Find New Antimalarials, XXI, Guanidine and Biquanide Derivatives of Phenanthrene" J. Org. Chem. 12 (1947) pp. 437-445.
Curd, F. H. S. and rose, F. L., "Synthetic Antimalarials, Part X, Some Aryldiguanide (-biguanide) Derivatives" J. Chem. Soc. 729-737 (1946).
Curd, Henry, Kenny, Murray and Rose "Synthetic Antimalarials, Part XXVIII. An Alternative Route to N.sup.1 -Aryl-N.sup.5 alkyldiguanides" J. Chem. Soc. 1630-1636 (1948).
Conrad Jeffrey P.
Zupancic Joseph J.
Allied-Signal Inc.
Boldingh Mary Jo
Criss Roger H.
Sellers Robert E.
Wells Harold N.
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