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
2011-07-19
2011-07-19
Sellers, Robert (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...
C523S452000
Reexamination Certificate
active
07981980
ABSTRACT:
The invention discloses a cross-linked epoxy resin with flame-retardant properties and method for producing the same. The polymeric material of the invention includes an epoxy resin, a curing agent and a modification agent. Particularly, the modification agent is a derivative of 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO). Moreover, the curing agent is 4,4′-diaminodiphenyl methane (DDM), or tris(4-aminophenyl)amine (NNH).
REFERENCES:
patent: 1548473 (2004-11-01), None
patent: 101307170 (2008-11-01), None
patent: 2004-175891 (2004-06-01), None
Lin et al., “Flame-Retardant Epoxy Resins with High Glass-Transition Temperatures. II. Using a Novel Hexafunctional Curing Agent: 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-yl-tris(4-aminophenyl) methane,” Journal of Polymer Science: Part A: Polymer Chemistry, vol. 43, 2005, pp. 5971-5986.
Dai Shenghong A.
Jeng Ru-Jong
Lin Ching-Hsuan
Liu Chun-Ku
Su Wen-Chiung
Chung-Shan Institute of Science and Technology Armaments Bureau,
Sellers Robert
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