Secondary aromatic diamines as curing agents in polyurethane man

Details Secondary aromatic diamines as curing agents in polyurethane man Secondary aromatic diamines as curing agents in polyurethane man

1985-03-25

1986-03-25

Cockeran, Herbert S.

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 48, C08G 1832, C08G 1816

Patent

active

045784469

ABSTRACT:
Polyurethanes may be conveniently made by curing isocyanate-terminated urethane prepolymers with a N,N'-dialkylmethylenedianiline. The diamine N,N'-di(2-butyl)-4,4'-methylenedianiline is a particularly useful diamine. The resulting polyurethanes often are thermoplastic rather than thermosetting, making them especially useful as coatings, adhesives, and sealants. Such secondary aromatic diamines have acceptable pot lives and afford products with a variety of properties.

REFERENCES:
patent: 3194793 (1965-07-01), Kogon
patent: 3846351 (1974-11-01), Huffaker et al.

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