Assignee
FIRST CHEMICAL CORP
US·23 granted patents·278 citations·filing 1985–1999
Top patents by PatentIndex Score
23 records- 0191US6369124B1Polymerization processes using aliphatic maleimidesFIRST CHEMICAL CORP·Filed 1999·Granted Apr 9, 2002·47 cites·18 claims
- 0284US4740621ACo-production of an aromatic monoamine and an aromatic diamine directly from benzene or a benzene derivative through controlled nitrationFIRST CHEMICAL CORP·Filed 1985·Granted Apr 26, 1988·27 cites·33 claims
- 0376US6025408ALiquid thioxanthone photoinitiatorsFIRST CHEMICAL CORP·Filed 1997·Granted Feb 15, 2000·23 cites·29 claims
- 0475US6150431AAromatic maleimides and methods of using the sameFIRST CHEMICAL CORP·Filed 1999·Granted Nov 21, 2000·17 cites·11 claims
- 0575US5081303ACo-production of an aromatic monoamine and an aromatic diamine directly from benzene or a benzene derivative through controlled nitration and reductionFIRST CHEMICAL CORP·Filed 1989·Granted Jan 14, 1992·14 cites·23 claims
- 0674US6287749B1Biradical photoinitiators and photopolymerizable compositionsFIRST CHEMICAL CORP·Filed 1998·Granted Sep 11, 2001·15 cites·20 claims
- 0766US4925565AProcess for extracting and disposing of nitrophenolic by-productsFIRST CHEMICAL CORP·Filed 1988·Granted May 15, 1990·25 cites·16 claims
- 0864US6018078AStabilized N-nitrosohydroxylaminesFIRST CHEMICAL CORP·Filed 1999·Granted Jan 25, 2000·10 cites·42 claims
- 0964US4666978AMethod of curing unsaturated polyester resins at low temperaturesFIRST CHEMICAL CORP·Filed 1985·Granted May 19, 1987·17 cites·17 claims
- 1063US5916984AProcess for preparing thioxanthone and derivatives thereofFIRST CHEMICAL CORP·Filed 1997·Granted Jun 29, 1999·9 cites·14 claims
- 1157US5030759ASelective N-alkylation of aniline in the presence of zeolite catalystsFIRST CHEMICAL CORP·Filed 1989·Granted Jul 9, 1991·6 cites·11 claims
- 1257US4986917ASelective recovery of a nitrophenolic by-product from nitration waste water by extractionFIRST CHEMICAL CORP·Filed 1989·Granted Jan 22, 1991·20 cites·17 claims
- 1356US6140385APhotoactive compounds for use with narrow wavelength band ultraviolet (UV) curing systemsFIRST CHEMICAL CORP·Filed 1998·Granted Oct 31, 2000·6 cites·41 claims
- 1447US6114470AMethods of curing unsaturated polymers using tertiary aromatic amine cure promotersFIRST CHEMICAL CORP·Filed 1997·Granted Sep 5, 2000·9 cites·15 claims
- 1546US5907046AProcesses for preparing thioxanthone and derivatives thereofFIRST CHEMICAL CORP·Filed 1997·Granted May 25, 1999·7 cites·17 claims
- 1645US5081302ASelective c-alkylation of aniline in the presence of zeolite catalysts to para-anilineFIRST CHEMICAL CORP·Filed 1989·Granted Jan 14, 1992·3 cites·14 claims
- 1744US5075379ARubber/diamine blends for use in curing epoxy resinsFIRST CHEMICAL CORP·Filed 1990·Granted Dec 24, 1991·7 cites·2 claims
- 1842US6258894B1Methods of curing unsaturated polymers using tertiary aromatic amine cure promotersFIRST CHEMICAL CORP·Filed 1997·Granted Jul 10, 2001·7 cites·1 claims
- 1942US5712401AProcesses for preparing thioxanthone and derivatives thereofFIRST CHEMICAL CORP·Filed 1996·Granted Jan 27, 1998·2 cites·16 claims
- 2039US5128059ARing-alkylated m-phenylene diamine blends for use in curing epoxy resinsFIRST CHEMICAL CORP·Filed 1991·Granted Jul 7, 1992·3 cites·3 claims
- 2137US5049639ARing-alkylated m-phenylene diamine blends for use in curing epoxy resinsFIRST CHEMICAL CORP·Filed 1989·Granted Sep 17, 1991·3 cites·3 claims
- 2234US5939581AProcesses for preparing hydrocinnamic acidFIRST CHEMICAL CORP·Filed 1997·Granted Aug 17, 1999·1 cites·11 claims
- 2328US4986920ASelective recovery of a nitrophenolic by-product from nitration waste water by precipitationFIRST CHEMICAL CORP·Filed 1989·Granted Jan 22, 1991·0 cites·6 claims
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