Jeffrey CohenBrooklyn, NY

6365691, Apr 2, 2002

Jul 6, 2000

09/611088

Russell Biss - Wayne NJ
Jeffrey Cohen - Fair Lawn NJ
John Zamora - Paramus NJ
Krystyna Plochocka - Scotch Plains NJ
Jeffrey A. Lynn - West Milford NJ

ISP Investments Inc. - Wilmington DE

C08F22204

526272, 526266, 526269, 526270, 526271, 526332, 5263487

A continuous, solvent-free process for obtaining solvent-free, fine white powders of high molecular weight alternating terpolymers of maleic anhydride, a C -C alkyl vinyl ether and isobutylene, without odor or taste.

6451944, Sep 17, 2002

May 18, 2001

09/861044

Russell Biss - Wayne NJ
Jeffrey Cohen - Fair Lawn NJ
John Zamora - Paramus NJ
Krystyna Plochocka - Scotch Plains NJ
Jeffrey A. Lynn - West Milford NJ

ISP Investments Inc. - Wilmington DE

C08F 3402

526271, 526 68

A continuous, solvent-free process for obtaining solvent-free, fine white powders of high molecular weight alternating copolymers of maleic anhydride and a C -C alkyl vinyl ether, without odor or taste, having the molecular structure (AâB) , where A is maleic anhydride, B is an alkyl vinyl ether and n is an integer indicative of the molecular weight of the copolymer, which comprises feeding alkyl vinyl ether as reactant and solvent in excess over the desired 1:1 mole ratio of A:B in the copolymer, molten maleic anhydride and a free radical initiator, continuously at predetermined feeding rates into a reactor heated at a reaction temperature of about 50Â to 100Â C. , charging the reactor and withdrawing reaction product, residual alkyl vinyl ether and initiator from the reactor at the same rate as the feed rate of reactants into the reactor simultaneously thereby maintaining a constant volume in the reactor, stripping residual alkyl vinyl ether from the reaction product, drying the copolymer obtained of any remaining traces of alkyl vinyl ether, and recycling recovered alkyl vinyl ether back into reactor as reactant and solvent.

5077047, Dec 31, 1991

Apr 8, 1991

7/683467

Russell B. Biss - Paramus NJ
Jeffrey Cohen - Fanwood NJ
John J. Merianos - Middletown NJ
Paul D. Taylor - West Milford NJ

ISP Investments Inc. - Wilmington DE

A61K 3179
A01N 2500

525387

A process for the production of PVP-H. sub. 2 O. sub. 2 products in the form of free-flowing powders is described in which a fluidized bed maintained at a reaction temperature of about room temperature to 60. degree. C. is contacted with finely divided droplets of a 30 to 85% by weight aqueous H. sub. 2 O. sub. 2 solution. Preferably the fluidized bed temperature is about 35. degree. -45. degree. C. , a 50-70% H. sub. 2 O. sub. 2 solution is used, and the feed rate of introduction of the H. sub. 2 O. sub. 2 solution is about 5-50 g/minute/kg PVP present. The PVP-H. sub. 2 O. sub. 2 product preferably contains about 15-24%, preferably 18-22%, H. sub. 2 O. sub. 2 (1:1 molar ratio) and less than about 5% water.

5177113, Jan 5, 1993

Mar 4, 1992

7/883617

Russell B. Biss - Wayne NJ
Jeffrey M. Cohen - Fanwood NJ
John J. Merianos - Middletown NJ
Paul D. Taylor - West Milford NJ

ISP Investments Inc. - Wilmington DE

A61K 3179
A61K 3340
A61K 4738

5147725

A free-standing, porous foam product comprising an integral network of PVP molecules hydrogen-bonded to H. sub. 2 O. sub. 2 molecules, optionally including a water-soluble gelling agent; e. g. hydroxyethyl cellulose; in an amount up to 60% by weight of the product, its PVP content being about 25-90% by weight of the product, and the H. sub. 2 O. sub. 2 content being about 5-24% by weight. In the absence of a gelling agent, the product has a bulk density of about 0. 3 to about 0. 5 g/cc and a porosity of about 60-70%. When a gelling agent is present in the product, its bulk density and porosity of the product is substantially reduced and, accordingly, it has a more foam-like structure and appearance.

6093863, Jul 25, 2000

Dec 1, 1999

9/452557

Jeffrey M. Cohen - Fairlawn NJ
William D. Young - Cedar Grove NJ

ISP Investments Inc. - Wilmington DE

C07C 900
C07C 720
B01D 4700

585 15

A composition for preventing or retarding the formation of gas hydrates or for reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit, comprising, (a) a polymer or copolymer selected from a terpolymer of vinyl pyrrolidone, vinyl caprolactam and an ammonium derivative monomer having from 6 to 12 carbon atoms, selected from the group consisting of dialkyl aminoalkyl methacrylamide, dialkyl dialkenyl ammonium halide and a dialkylamino alkyl acrylate or methacrylate, a copolymer of vinyl pyrrolidone and vinyl caprolactam, and a homopolymer of vinyl caprolactam, and (b) an alcohol containing three to five carbon atoms and one hydroxy group.

6096815, Aug 1, 2000

Oct 7, 1998

9/168981

Jeffrey M. Cohen - Fairlawn NJ
William D. Young - Cedar Grove NJ

ISP Investments Inc. - Wilmington DE

C08J 506
C08K 505

524379

A composition for preventing or retarding the formation of gas hydrates or for reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit, comprising, (a) a polymer or copolymer selected from a terpolymer of vinyl pyrrolidone, vinyl caprolactam and an ammonium derivative monomer having from 6 to 12 carbon atoms, selected from the group consisting of dialkyl aminoalkyl methacrylamide, dialkyl dialkenyl ammonium halide and a dialkylamino alkyl acrylate or methacrylate, a copolymer of vinyl pyrrolidone and vinyl caprolactam, and a homopolymer of vinyl caprolactam, and (b) an alcohol containing three to five carbon atoms and one hydroxy group.

5329021, Jul 12, 1994

Feb 4, 1993

8/081947

Jeffrey M. Cohen - Fanwood NJ
Russell B. Biss - Wayne NJ

ISP Investments Inc. - Wilmington DE

C07D207267

548543

This invention relates to a process for the purification of a crude liquid N-vinylpyrrolidone product which comprises (I) product rectification by (a) subjecting said crude product containing at least 0. 3 weight % of impurities to a temperature of between about 1. degree. and 5. degree. below the freezing point of said crude liquid to form a vinyl pyrrolidone crystalline phase and a liquid residue phase in a first crystallization step; (b) separating said liquid phase from said crystalline phase; (c) allowing said separated crystalline phase to warm gradually so as to liquify said crystals and (d) subjecting the liquified crystals of vinyl pyrrolidone to between 1 and 3 additional crystallization steps, each carried out by gradually cooling the liquified vinyl pyrrolidone to a temperature above that of the preceding crystallization step up to a temperature of 14. 4. degree. C. so as to form additional vinyl pyrrolidone crystalline and liquid residue phases with separation of vinyl pyrrolidone crystals and liquid residue phases and liquification of vinyl pyrrolidone crystals between each additional recrystallization step, recovery of N-vinyl-pyrrolidone product from the final crystallization step and (II) collecting said separated liquid residues from each crystallization step and subjecting them, sequentially, individually or collectively, to fractional crystallization in order to recover additional amounts of purified vinyl pyrrolidone product. The present process is capable of achieving up to 99.

5458022, Oct 17, 1995

Nov 15, 1993

8/151968

Raymond Mattfeld - Yapank NY
Jeffrey Cohen - Great Neck NY

G05G 114

745941

A device is provided for range adjusting bicycle pedals in a bicycle having a frame with a crank hub, a drive sprocket and drive chain. The device consists of a crank axle extending through the crank hub, with the drive sprocket mounted on the crank axle to operate the drive chain. A pair of crank arms extend in opposite directions from the crank axle. A pair of pedals are provided. A structure is for mounting each pedal in an adjustable manner to each crank arm, so as to change the distance of the pedals to the crank axle. Someone who cannot fit on a standard bicycle properly, such as a child, an adult and an elderly person that has limited knee, hip and ankle movement, can still pedal the bicycle. In addition, status-post surgical patients would also benefit from the range adjusting device. In a modification the crank arms are adjustable to the crank axle instead of the pedals to the crank arms.