ARCO CHEMICAL COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5245092 Process for preparing dinitrotoluene with low by-product contentSep 14, 92Sep 14, 93[C07C]
RE30545 CatalystOct 18, 79Mar 10, 81[B01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5698719 Oxirane productionExpiredOct 11, 96Dec 16, 97[C07D]
5519103 Allyl ester copolymers with allylic alcohols or propoxylated allylic alcoholsExpiredApr 28, 95May 21, 96[C08F]
5488187 Process for the production of dinitrobenzene and mononitrobenzeneExpiredAug 15, 94Jan 30, 96[C07C]
5354924 Process for the production of dinitrotolueneExpiredAug 17, 93Oct 11, 94[C07C]
5302763 Process for preparing dinitrotolueneExpiredMar 01, 93Apr 12, 94[C07C]
5099078 Process for preparing dinitrotolueneExpiredDec 21, 90Mar 24, 92[C07C]
5099079 Process for separating acid from nitro substituted aromatics using a molten nitrate saltExpiredJul 26, 90Mar 24, 92[C07C]
5099080 Process for preparing dinitrotolueneExpiredMar 08, 91Mar 24, 92[C07C]
5089070 Poly(propylene carbonate)-containing ceramic tape formulations and the green tapes resulting therefromExpiredDec 07, 89Feb 18, 92[C04B]
5057632 Process for preparing dinitrotolueneExpiredOct 22, 90Oct 15, 91[C07C]
5026676 Catalyst for the copolymerization of epoxides with CO.sub.2ExpiredApr 20, 90Jun 25, 91[B01J]
5012019 Process for purifying aromatic nitration productsExpiredJan 26, 90Apr 30, 91[C07C]
5001272 Process for the production of dinitrotolueneExpiredSep 05, 89Mar 19, 91[C07C]
4996359 Process for the preparation of aromatic bis dialkyl ureasExpiredMar 14, 88Feb 26, 91[C07C]
4943677 Making poly(alkylene carbonates) of controlled molecular weightExpiredJun 08, 89Jul 24, 90[C08G]
4940733 Method for foaming high temperature polymers using poly(alkylene carbonates) as foaming agentsExpiredNov 28, 89Jul 10, 90[C08J]
4931502 Ductile, blow moldable composition containing a styrene-maleimide copolymer bearing pendant carboxyl or hydroxyl groupsExpiredOct 11, 88Jun 05, 90[C08L]
4918250 Process for the production of dinitrotoluene using an inorganic salt as a phase separation agentExpiredApr 21, 89Apr 17, 90[C07C]
4886700 Laminated composite of a rigid polyurethane modified polyisocyanurate substrate and metal, plastic, cellulose, glass, ceramic or combinations thereofExpiredAug 24, 87Dec 12, 89[B32B]
4853462 Preparation of discrete particles of polyalkylene carbonateExpiredMar 21, 88Aug 01, 89[C08J]

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