Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-12-20
1998-02-17
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 45, 528117, 5483131, 5483265, 5483341, C07D40314, C08G 1879, C09J17504
Patent
active
057192405
ABSTRACT:
A compound containing cyclic amidine groups and uretdione groups, having the formula: ##STR1## wherein X is O or NR.sup.2, R is the hydrocarbon radical of isophorone diisocyanate: ##STR2## R.sup.1 is a substituted (cyclo)alkylene radical which is substituted with O-3 CH.sub.3 groups and has 2-14 carbon atoms @
REFERENCES:
patent: 4355058 (1982-10-01), Gras et al.
patent: 4476054 (1984-10-01), Disteldorf et al.
patent: 4496684 (1985-01-01), O'Connor et al.
Gras Rainer
Wolf Elmar
Huels Aktiengesellschaft
Krass Frederick
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