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
1995-01-25
1996-11-19
Kumar, Shailendra
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...
524356, 524768, 528 28, 528 48, 528 85, 564 51, 564 50, 564 48, 564 61, 564 64, C08G 1832
Patent
active
055764100
ABSTRACT:
A diaminourea compound having the formula (I); ##STR1## wherein R.sub.1 and R.sub.2 are independently a straight or branched alkylene group having 2 to 8 carbon atoms, an alicyclic alkylene group having 6 to 15 carbon atoms, a phenylene group, a C.sub.1 -C.sub.4 alkyl-substituted phenylene group, a C.sub.1 -C.sub.4 mono- or di-alkylene substituted phenylene group, or a methanediphenylene group, and a production process thereof as well as a high heat resistant polyurethaneurea derived therefrom and a production process thereof.
REFERENCES:
patent: 3752786 (1973-08-01), Rossitto
Kryuchkov et al., Polymer Sci, USSR, 1981, 2715-2721.
Furubeppu Satoshi
Yosizato Akihiko
Asahi Kasei Kogyo Kabushiki Kaisha
Kumar Shailendra
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