Witco Chemical Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4764428 Free-flowing, non-dusting antistatic agent composition pellets and method of forming sameExpiredMay 29, 87Aug 16, 88[C09K, L08J, B32B, C08K]
4716191 Cable flooding compoundExpiredMay 16, 85Dec 29, 87[H02G, C08K]
4647387 Succinic anhydride promoter overbased magnesium sulfonates and oils containing sameExpiredApr 11, 85Mar 03, 87[C10M]
4639484 Mold release enhancement for acrylonitrile-butadiene-styrene molding resinsExpiredMar 25, 86Jan 27, 87[C08J]
4617135 Process for the preparation of overbased magnesium sulfonatesExpiredJun 17, 85Oct 14, 86[C10M]
4608331 Photosensitive plates with diazonium composition layer and polyurethane photopolymer with unsaturation in side chain overlayerExpiredNov 16, 84Aug 26, 86[G03C]
4602079 Urethane elastomers prepared using a prepolymer prepared from a polyester which reacts with a chain-extending agent and/or a saturated polyester resin in which at least one of the polyesters is prepared from a dimer and/or trimer fatty acidExpiredFeb 21, 85Jul 22, 86[C08G]
4575142 Safety grip handle for a hoseExpiredSep 13, 84Mar 11, 86[B65G]
4562214 Personal care emulsionExpiredJan 28, 81Dec 31, 85[A61K, B01J]
4560489 High performance calcium borate modified overbased calcium sulfonate complex greasesExpiredSep 14, 83Dec 24, 85[C10M]
4540807 Aromatic base poly-sulfosuccinate estersExpiredSep 30, 81Sep 10, 85[C07C]
4521460 Aqueous N-methylolhydrazide-containing polymer dispersionExpiredJun 10, 83Jun 04, 85[B05D]
4517100 Lubricating wellbore fluid and method of drillingExpiredFeb 07, 83May 14, 85[C09K, C10M]
4514312 Lubricant compositions comprising a phosphate additive systemExpiredApr 12, 84Apr 30, 85[C10M]
4499028 Preparation of isethionic acidExpiredSep 07, 82Feb 12, 85[C07C]
4481122 Lubricant compositionsExpiredMar 21, 83Nov 06, 84[C10M]
4473438 Spray drying methodExpiredMay 04, 81Sep 25, 84[B01D]
4447571 Stabilization of polyurethanesExpiredOct 15, 81May 08, 84[C08K]
4434102 Preparation of mixtures of methyltin trichloride and dimethyltin dichloride from stanic chloride and dimethyltin dichloride without catalyst and conversion to mixed methyltin mercaptide stabilizersExpiredJan 23, 81Feb 28, 84[C07F]
4420437 Preparation of a 2-aralkyl-5,5-dialkyl-1,3,2-dioxaphosphorinan-2-one from 2-aralkoxy-5,5-dialkyl-1,3,2-dioxaphosphorinaneExpiredAug 06, 81Dec 13, 83[C07F]

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