Jim Minn


Patents - 7 United States, 1 Great Britain


Title: Compounds Derivable from Dehydroabietonitrile
Document Type and Number: United States Patent 2,750,364
Inventor: James Minn
Publication Date: 06/12/1956
Assignee: Hercules Powder Co., Wilmington, Del.
Primary Class: 568/326
Other Classes: 568/714, 560/255, 568/316, 560/107
International Classes: C07C33/36; C07C33/00
Abstract: Valuable and novel compounds derivable from dehydroabietonitrile and a process for their preparation.
PDF: Patent 2750364

Title: Phenanthrene Derivatives
Document Type and Number: United States Patent 2,750,372
Inventor: James Minn
Publication Date: 06/12/1956
Assignee: Hercules Powder Co., Wilmington, Del.
Primary Class: 568/714
Other Classes: 524/383, 560/256, 524/325, 524/384, 560/107, 560/84
International Classes: C07C29/147; C07C35/42; C07C29/00; C07C35/00
Abstract: New triols that can be prepared from hydrogenated rosin and, mores specifically, to triols obtained by the reduction of oxidatin products of the lactone of hydroxytetrahydroabietic acid.
PDF: Patent 2750372

Title: Process for preparing esters of O,O-dialkyl
Document Type and Number: United States Patent 4,282,153
Inventor: James Minn
Publication Date: 08/04/1981
Assignee: Hercules Agrochemicals Co., Wilmington, Del.
Abstract: A method for improving the yields of insecticidal compositions produced by reacting an O,O-dialkyl dithiophosphoric acid with a chloro-p-dioxane in the presence of a Lewis acid catalyst and a stoichiometric excess of the acid reactant. More specifically, the method concerns the improvement wherein certain bicyclo-heptenes are added to the system resulting from the reaction and reacted with the excess of O,O-dialkyl dithiophosphoric acid present in the system.
PDF: Patent 4282153

Title: Process for producing dialkyl dithiophosphoric acid esters
Document Type and Number: United States Patent 4,283,335
Inventor: James Minn
Publication Date: 08/04/1981
Assignee: Hercules Agrochemicals Co., Wilmington, Del.
Abstract: A method for improving the yield of dialkyl dithiophosphoric acid esters produced by the Lewis acid catalyzed reaction of an O,O-dialkyl dithiophosphoric acid and an organic chloride.
PDF: Patent 4283335

Title: Process for producing O,O-dialkyl dithiophosphoric acid esters
Document Type and Number: United States Patent 4,283,338
Inventor: James Minn
Publication Date: 08/04/1981
Assignee: Hercules Agrochemicals Co., Wilmington, Del.
Abstract: A method for improving the yield of dialkyl dithiophosphoric acid esters produced by the Lewis acid catalyzed reaction of an O,O-dialkyl dithiophosphoric acid and an organic chloride
PDF: Patent 4283338

Title: Sodium hydroxymethane sulfonate to improve the color stability of rosin resins
Document Type and Number: United States Patent 5,021,548
Inventor: James Minn
Publication Date: 06/04/1991
Assignee: Hercules Incorporated, Wilmington, Del.
Abstract: The color stability of rosin esters is improved by carrying out the esterification reaction in the presence of 0.05% to 5% sodium hydroxymethane sulfonate (SHS). The color stability of polymerized rosin is improved by heating at a temperature of 250°-290° C. in the presence of SHS.
PDF: Patent 5021548

Title: Use of a mixed catalyst system to improve the viscosity stability of rosin resins
Document Type and Number: United States Patent 5,049,652
Inventor: James Minn
Publication Date: 09/17/1991
Assignee: Hercules Incorporated, Wilmington, Del.
Abstract: Esters having improved viscosity stability are prepared by heating a mixture of rosin and a polyol in the presence of a catalyst mixture of 0.1% to 0.6% by weight calcium bis(ethyl 3,5-di-t-butyl-4-hydroxybenzyl phosphonate) and 0.02 to 1.0% by weight of a second calcium compound selected from calcium carbonate, calcium oxide and a calcium salt of an aliphatic carboxylic acid, all percentages being based on the weight of rosin.
PDF: Patent 5049652

Title: Production of Terephthalic Acid by Hydrolysis of an Alkyl Terephthalate
Document Type and Number: Great Britain Patent: GB1130695
Inventor: James Minn
Publication Date: 10/16/1968
Assignee: Hercules Incorporated , Wilmington, Del.
Abstract: In a method of preparing terephthalic acid from a mono- or di-alkyl terephthalate, wherein the alkyl group is a C 1 to C 4 group, the alkyl terephthalate is contacted with water in the liquid phase under autogenous pressure at a temperature in the range 140 to 350 C. until hydrolysis to terephthalic acid has occurred and the terephthalic acid is separated from the hydrolysate.
PDF: Patent GB1130695