Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5096997 | Copoly arylate from hydroquinone and dihydroxy diphenyl sulfone Described herein are novel polyarylates derived from mixtures of terephthalic and isophthalic acids, hydroquinone and 4,4'-dihydroxydiphenyl sulfone. The instant polyarylates exhibit excellent stress-crack resistance in a wide variety of solvents. Moreove... | 03/17/1992 |
| 5091464 | Polymer compositions having improved molding characteristics Disclosed are novel blends of fully aromatic copolyesters which comprise (a) 1-19 parts by weight of a polyester comprising recurring moieties of dihydroxybenzene, nonvicinal benzene dicarboxylate, para oxybenzoate to (b) 1 part by weight of a polyester c... | 02/25/1992 |
| 5089594 | Wholly aromatic polyester of isophthalic acid, terephthalic acid, p-hydroxybenzoic acid, hydroquinone and an arylene diol Aromatic polyesters based on isophthalic acid, terephthalic acid, p-hydroxybenzoic acid, hydroquinone and an arylene diol are described. The five monomers ae used in well-specified proportions and yield polymers that display an excellent overall combinati... | 02/18/1992 |
| 5080815 | Method for preparing engine seal compatible dispersant for lubricating oils comprising reacting hydrocarbyl substituted discarboxylic compound with aminoguanirise or basic salt thereof A dispersant composition having improved compatibility with fluorohydrocarbon-containing elastomeric engine seals, said dispersant composition comprising the reaction product obtained by reacting a C30 -C250 hydrocarbyl-substituted s... | 01/14/1992 |
| 5079289 | High modulus, high strength melt-processible polyester of hydroquinone poly (iso-terephthalates) containing residues of a p-hydroxybenzoic acid This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (V). ##STR1## and blends of these polymers and articles made from both. Units (I), (II), (III), and (IV) are present in specified proportions as defin... | 01/07/1992 |
| 5066767 | Wholly aromatic polyesters comprising isophthalic acid, terephthalic acid, p-hydroxybenzoic acid, hydroquinone and an arylene diol Wholly aromatic polyesters based on isophthalic acid, terephthalic acid, p-hydroxybenzoic acid, hydroquinone and an arylene diol, e.g. 4,4'-biphenol are described. The materials displayed are excellent overall combination of mechanical and thermal propert... | 11/19/1991 |
| 5047486 | Integrated process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers) A process for the preparation of poly(aryl ether) block copolymers with polycarbonates and/or polyarylates comprising the steps of a) reacting a hydroxy-terminated poly(aryl ether) with a high molecular weight aromatic polycarbonate, or a high molecular weight... | 09/10/1991 |
| 5039717 | Copolyesters Injection-moldable copolyesters of terephthalate units, ethylene units and a high proportion (e.g. 82-87) mole %) of oxybenzoate units, and cookware made of such copolyesters. Process for making such copolyesters by reacting polyethylene terephthalate wit... | 08/13/1991 |
| 5036150 | Polyarylates having improved hydrolytic stability This invention relates to moldable polyarylates and in particular to moldable polyarylate compositions which have repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS), optionally a dihydric phenol such as 2,2-bis-(4-hydroxyphenyl... | 07/30/1991 |
| 5030505 | Polyarylate-polyethylene composite laminated structures Composite laminated structures comprising a polyarylate film bound to a polyethylene film via an intermediate tie layer are described. The structures are fabricated by coextrusion of three layer blown tubular films with the center layer being present to b... | 07/09/1991 |
| 5012030 | Process for preparing polybutenes with increased reactivity Viscous, liquid polybutenes of at least 50 wt. % vinylidene content are disclosed together with a procedure for preparing the compounds using an aluminum chloride-organic nitro compound catalyst.... | 04/30/1991 |
| 4981603 | Blending method for improved compatibility of dispersants and basic magnesium detergents in DI packages A method for improving the compatibility of oil soluble nitrogen- or ester-containing ashless lube oil dispersants and basic magnesium-containing detergents intended for incorporation in a DI package concentrate which will contain other lube oil additive ... | 01/01/1991 |
| 4963277 | Increasing viscosity storage stabiity of Mannich base dispersant/VI-improvers A method is described for improving the viscosity storage stability of a Mannich base condensation product of an oxidized polyolefin, formaldehyde, and an amine. This method involves contacting such Mannich base condensation product with a lower alkyl per... | 10/16/1990 |
| 4948523 | Chlorine-free silver protective lubricant composition (I) A lubricating composition, preferably essentially free of zinc dihydrocarbyldithiophosphate compounds, and optionally free of chlorine containing silver lubricity agents, comprising a major proportion of an oil of lubricating viscosity and a minor amount ... | 08/14/1990 |
| 4938883 | Overbased alkaline earth alkenyl succinates as a silver-mild source of alkalinity for heavy duty diesel engines A silver-mild lubricant for use in heavy duty diesel engines which uses overbased alkaline earth long chain alkenyl succinate as a silver-mild source of alkalinity.... | 07/03/1990 |
| 4923961 | Process for deodorizing isobutylene polymer A process to hydrogenate and deodorize a polyisobutylene polymer of from 100 to 4000 molecular weight and cosmetic dermatological compositions containing the hydrogenated, deodorized polyisobutylene polymers are disclosed.... | 05/08/1990 |
| 4908145 | Engine seal compatible dispersants for lubricating oils There is provided a process for preparing an oil-soluble composition that is suitable for use as a dispersant in lubricating oils, is compatible with fluorohydrocarbon elastomers, and is rich in alkyl bis-3-amino-1,2,4-triazole. Selected conditions are ne... | 03/13/1990 |
| 4906778 | Process for the production of aminoguanidine bicarbonate A process for the preparation of aminoguanidine bicarbonate includes reacting an acidic aqueous hydrazine hydrate solution with calcium cyanamide in an elevated temperature to produce an aminoguanidine solution, recovering the solution, and reacting there... | 03/06/1990 |
| 4899013 | Viscous polymers of isobutylene and dienes A process is disclosed for the preparation of copolymers of a diene and isobutylene wherein the copolymer has a degree of unsaturation greater than 100% and average molecular weight range is from 400 to 10,000.... | 02/06/1990 |
| 4891462 | Cyclization-dehydrogentation of 1-ethyl-naphthalene over copper aluminum borate A copper aluminum borate catalyzed cyclization-dehydrogenation process useful for converting 1-ethylnaphthalene to mixtures of vinylnaphthalens, acenaphthene and acenaphthylene.... | 01/02/1990 |
| 4889646 | Nitrogen containing dispersants treated with mineral acids A dispersant composition comprising the reaction product of an ashless dispersant selected from the group consisting of (i) Mannich dispersants, (ii) succinimide dispersants, (iii) succinate ester-amide dispersants, and (iv) polymeric viscosity index impr... | 12/26/1989 |
| 4883847 | Process to terminate an olefin polymerization reaction A method is disclosed for terminating a polymerization reaction of reactive olefins and a Lewis acid catalyst wherein the reaction is killed almost instantaneously to prevent an explosion. The material added to terminate the reaction is non-toxic and is e... | 11/28/1989 |
| 4883886 | Process for manufacturing polyalkenyl succinic anhydrides A process in which a polymer of a C2 -C8 olefin having a number average molecular weight of about 250 and 30,000 undergoes reaction with an unsaturated aliphatic dicarboxylic acid anhydride in two stages in the presence of 5-500 ppm,... | 11/28/1989 |
| 4873009 | Borated lube oil additive Borated reaction product of a long chain aliphatic succinic acid compound and alkylene diamine having an average of at least about 2.5 N-substituted hydroxyalkyl groups.... | 10/10/1989 |
| 4873007 | Method for producing sulfurized alkylphenols A process for preparing sulfurized alkyl-substituted phenol which comprises: (1) charging to a reaction system having a reaction vessel equipped with a reflux condenser, (a) alkyl-substituted phenol wherein the alkyl substituent comprises about 8 to about... | 10/10/1989 |
