Epihalohydrin modified dicyandiamide-formaldehyde condensates an

Details Epihalohydrin modified dicyandiamide-formaldehyde condensates an Epihalohydrin modified dicyandiamide-formaldehyde condensates an

1981-12-08

1983-04-19

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...

1621643, 524843, 528250, 528268, C08L 6122

Patent

active

043806031

ABSTRACT:
Disclosed are novel water-soluble, thermosettable resinous compositions derived by reacting a precondensate of dicyandiamide, formaldehyde, a salt of a water-soluble polyaminopolyamide and an ammonium salt with epihalohydrin, condensing the reaction product with additional formaldehyde and then post-modifying the condensate with additional epihalohydrin or a nitrogen-containing compound. The resinous compositions are cationic and have particular utility in the manufacture of paper sized with cellulose reactive sizing agents such as ketene dimer sizing agents.

REFERENCES:
patent: 2973239 (1961-02-01), Gortvai
patent: 3594272 (1971-07-01), Shen et al.
patent: 3840486 (1974-10-01), Dumas
patent: 3914155 (1975-10-01), Horowitz
patent: 3951921 (1976-04-01), Espy et al.

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