Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-06-20
2011-11-22
Woodward, Ana (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C523S427000, C523S428000, C525S529000
Reexamination Certificate
active
08063157
ABSTRACT:
Curing agent for epoxy resins, consisting of A) 1%-99% by weight of an adduct obtainable by reacting a1) a polyethylene polyamine having up to six nitrogens in the molecule with a2) a monoglycidyl ether, the adduct of a1) and a2) preferably being isolated by removal of the excess polyethylene polyamine, and B) 99%-1% by weight of an adduct obtainable by reacting b1) a diamine or polyamine with b2) styrene, and also curable compositions further comprising an epoxide compound, and the use of these curable compositions for producing moldings and sheetlike structures, and also for applications in the adhesives and sealants sector and for epoxy-resin mortars.
REFERENCES:
patent: 6562934 (2003-05-01), Yonehama et al.
patent: 6908982 (2005-06-01), Ichikawa et al.
patent: 1188740 (2002-03-01), None
patent: 1375554 (2004-01-01), None
patent: 4045124 (1992-02-01), None
patent: 2004-018711 (2004-01-01), None
patent: 976983 (1982-11-01), None
Vogel Michael
Volle Jörg
Huntsman Advanced Materials Americas LLC
Woodward Ana
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