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
2011-03-01
2011-03-01
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...
C523S466000, C523S468000, C525S423000, C525S486000
Reexamination Certificate
active
07897703
ABSTRACT:
Epoxy resin compositions that include an epoxy resin component and a curative powder comprising particles of 4,4′-diaminobenzanilide (DABA) wherein the size of the DABA particles is less than 100 microns and wherein the median particle size is below 20 microns.
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patent: 1-188521 (1989-07-01), None
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NCAPLUS accession No. 1984:140125 for the Indian Journal of Technology article by Varma, “Amine-cured epoxy/glass fiber composites,” vol. 21, No. 7, 1983, one page.
Jang, et al.: Reaction Pathway of Liquid Crystalline Epoxy Resin/Aromatic Diamine Curing System, Macromol. Rapid Commun., vol. 21, 2000, pp. 960-963.
Bielawski W. Mark
Hexcel Corporation
Oldenkamp David J.
Sellers Robert
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