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Inventor:
Puskas; Imre
Address:
Glen Ellyn, IL
No. of patents:
20
Patents:












Patent Number Title Of Patent Date Issued
4514516 Method for manufacture of AMS-1B crystalline borosilicate molecular sieve with low sodium conten April 30, 1985
AMS-1B crystalline borosilicate molecular sieve is prepared by reacting under crystallization conditions an aqueous mixture containing sources for an oxide of silicon, an oxide of boron, a cation and a lower alkyl primary or secondary amine.
4467111 Process for purification of crude terephthalic acid August 21, 1984
A catalyst and process for purifying crude terephthalic acid wherein the catalyst is prepared by contacting a carbonaceous support with an aqueous solution of sodium tetranitropalladate.
4467110 Process for purification of crude terephthalic acid August 21, 1984
A process for producing a purified terephthalic acid which comprises reacting in a liquid phase a mixture of hydrogen and crude terephthalic acid, a palladium/rhodium catalyst on a porous carbonaceous support wherein the catalyst compound is prepared by adsorbing palladium on the sup
4421676 Process for preparation of palladium on carbon catalysts used in the purification of crude terep December 20, 1983
A catalyst and process for purifying crude terephthalic acid wherein the catalyst is prepared by contacting a carbonaceous support with an aqueous solution of sodium tetranitropalladate.
4415479 Palladium on carbon catalyst for purification of crude terephthalic acid November 15, 1983
A catalyst and process for purifying crude terephthalic acid wherein the catalyst comprises palladium metal crystallites deposited upon a carbon support wherein the catalyst is prepared by contacting a carbonaceous support with an aqueous solution of a palladium amine complex in the
4394299 Palladium-rhodium catalyst for purification of crude terephthalic acid July 19, 1983
A process for producing a purified terephthalic acid which comprises reacting in a liquid phase a mixture of hydrogen and crude terephthalic acid, a palladium/rhodium catalyst on a porous carbonaceous support wherein the catalyst compound is prepared by adsorbing palladium on the sup
4220746 4-Peroxyester derivatives of trimellitic anhydride September 2, 1980
4-Peroxyester derivatives of trimellitic anhydride and polymers derived by use of these derivatives as dual function reagents for polymerization and introduction of the phthalic anhydride moiety.
4138392 Imide nitrogen dibenzofurans polymers February 6, 1979
The present disclosure relates to a new composition of matter dibenzofuran-2,3,6,7,-tetracarboxylic acid dianhydride and polymers derived therefrom including polyamic acid or polyimide polymers formed from the reaction of the above dianhydride and a diamine. The claimed dianhydride f
4086251 Process for manufacturing polyalkenyl succinic anhydrides April 25, 1978
A process for producing alkenyl substituted anhydrides which comprises introducing one mole of polypropene or polybutene having a number average molecular weight of 200-3000, 0.8-5.0 moles of the anhydride of an unsaturated dicarboxylic acid and 5-200 ppm of an additive which suppres
4046779 Dibenzofuran-2,3,6,7-tetracarboxylic acid dianhydride September 6, 1977
The present disclosure relates to a new composition of matter dibenzofuran-2,3,6,7,-tetracarboxylic acid dianhydride and polymers derived therefrom including polyamic acid or polyimide polymers formed from the reaction of the above dianhydride and a diamine. The claimed dianhydride f
4034052 Alkenylation catalysts July 5, 1977
Unsaturated amines, primary and secondary saturated amines, N,N,N',N'-tetramethylethylenediamine, N,N,N',N'-tetramethyl-1,3-propanediamine, and ammonia cocatalysis with alkali metals for alkenylation of alkylaromatics having benzylic hydrogen with conjugated diolefins of 4-15 carbon
4029592 Polybutene composition and use thereof June 14, 1977
Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to about 3000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxylic acids when such polybutenes contain rather small amounts, i.e., 5 to 200 ppm, of halo
4028264 Polybutene composition containing halo-carbonyl additives and use thereof June 7, 1977
Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to about 3000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxylic acids when reacted in the presence of rather small amounts, i.e., 5 to 200 ppm, of al
4008168 Polybutene composition containing halogen-containing additives and use thereof February 15, 1977
Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to about 3000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxylic acids when such polybutenes contain rather small amounts, i.e., 5 to 200 ppm, of halo
4002648 Catalyzed trans-acidolysis reaction of trimellitic acid, trimellitic anhydride and 2-naphthoic a January 11, 1977
The trans- acidolysis reaction between carboxylic acids and lower alkanoic acid esters of organic hydroxy or mercapto compounds is catalyzed by Group Ia and IIa metal salts of alkanoic acids such as sodium acetate.
3985672 Polybutene composition containing brominated dialkylhydantoin additive and use thereof October 12, 1976
Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to about 3000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxylic acids when such polybutenes contain rather small amounts, i.e., 5 to 200 ppm, of brom
3960900 Polybutenylsuccinic anhydride production June 1, 1976
Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to about 3000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxlyic acids when such polybutenes contain rather small amounts, i.e., 5 to 200 ppm, of halo
3954812 Polybutene composition containing halogen-containing additives and use thereof May 4, 1976
Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to about 3000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxylic acids when such polybutenes contain rather small amounts, i.e., 5 to 200 ppm, of halo
3953475 Polybutene composition containing halo-carbonyl additives April 27, 1976
Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to 3000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxylic acids when reacted in the presence of rather small amounts, i.e., 5 to 200 ppm, of alpha ha
3935249 Tar reduction by inorganic halide for reaction of unsaturated anhydride and polybutene January 27, 1976
Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to about 3,000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxylic acids when reacted in the presence of rather small amounts, i.e., 5 to 200 ppm, of i










 
 
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