SAMEEH SAID TOUKAN
Pharmacy in Phoenixville, PA

4902804, Feb 20, 1990

Sep 6, 1988

7/244608

James P. King - Upper Gwynedd PA
Sameeh S. Toukan - Phoenixville PA

Pennwalt Corporation - Philadelphia PA

C07D28508, C07D28512, C10M13300

548130

The reaction products of the alpha-halogenated half esters or amides of succinic acid and thiadiazole dimercaptides as new compositions of matter and their use as lubricant additives possessing multifunctional properties such as extreme pressure, antiwear, antioxidant and anticorrosion.

4126633, Nov 21, 1978

Sep 8, 1976

5/721242

Sameeh S. Toukan - Phoenixville PA
Murray Hauptschein - Glenside PA

Pennwalt Corporation - Philadelphia PA

C07C14916

26050112

Fluorinated aliphatic sulfides, represented by R. sub. f (CH. sub. 2). sub. n S(CH. sub. 2). sub. m Q wherein R. sub. f is fluoroalkyl, n is 2 or 3, m is an integer from 2 to 4, Q is --N(R). sub. 2 or --N. sup. sym. (R). sub. 2 CH. sub. 2 COOH X. sup. crclbar. where X is Cl or Br, and R is an alkyl group of 1 to 4 carbon atoms, are particularly effective amphoteric surface-tension depressants or intermediates therefor.

4029809, Jun 14, 1977

Jul 25, 1975

5/599280

Herbert Q. Smith - late of Malvern PA
by Jacqueline Smith - Yardley PA
Sameeh Said Toukan - Phoenixville PA

Pennwalt Corporation - Philadelphia PA

A01N 912

424275

Fungi or bacteria pathogenic to plants are inhibited by applying to the locus to be protected therefrom a biocidally effective amount of a cyanomethyl arylsulfonate represented by the formula RSO. sub. 3 CH. sub. 2 CN where R is ##STR1##.

4343946, Aug 10, 1982

Jun 23, 1980

6/161824

Sameeh S. Toukan - Phoenixville PA
Piero Nannelli - King of Prussia PA

Pennwalt Corporation - Philadelphia PA

C07D27772

548177

A process for the purification of crude 2-mercaptobenzothiazole, prepared by reacting aniline, carbon disulfide and sulfur at elevated temperature and pressure is described. The process comprises the reaction of crude 2-mercaptobenzothiazole with 5-20%, preferably 10-12%, molar excess aqueous alkali metal hydroxide having a concentration of 3 to 20% by weight alkali metal hydroxide at 70. degree. to 90. degree. C. for 0. 5-4 hours, with vigorous agitation, followed by filtration of the insoluble impurities and acidification of the filtrate with a non-oxidizing mineral acid, such as hydrochloric and sulfuric acids. The precipitated, filtered product is washed with water and collected in 98-100% yield and 95-98. 5% purity.

4177351, Dec 4, 1979

Jun 17, 1975

5/587794

Sameeh S. Toukan - Phoenixville PA
Murray Hauptschein - Glenside PA

Pennwalt Corporation - Philadelphia PA

C07D23504

548325

Flourinated-alkyl sulfides represented by [R. sub. f (CH. sub. 2). sub. n S]. sub. z Q where R. sub. f is fluoroalkyl, n is 2 or 3, z is 1 or 2, and Q is an aryl, alkylaryl, alkyl heterocyclic or heterocyclic radical, are useful as surfactants or as intermediates for the preparation of salt-type, quaternary-salt, or amphoteric surfactants.

4254266, Mar 3, 1981

Jul 30, 1979

6/061567

Sameeh S. Toukan - Phoenixville PA
Murray Hauptschein - Glenside PA

Pennwalt Corporation - Philadelphia PA

C07D27774, C07D27736, C07D26346

548173

Fluorinated-alkyl sulfides represented by [R. sub. f (CH. sub. 2). sub. n S]. sub. z Q where R. sub. f is fluoroalkyl, n is 2 or 3, z is 1 or 2, and Q is an aryl, alkylaryl, alkyl heterocyclic or heterocyclic radical, are useful as surfactants or as intermediates for the preparation of salt-type, quaternary-salt, or amphoteric surfactants.

4806173, Feb 21, 1989

Jan 5, 1987

7/000735

Sameeh S. Toukan - Phoenixville PA

B08B 308, C11D 728

134 42

A simple, effective and inexpensive method for cleansing dental appliances comprises the immersion of the artificial denture in a dilute aqueous solution of a carboxylic acid having the structure R(Z)COOH, where "R" is a hydrocarbon chain and "Z" is a hydroxy, a halo or aryl radical.

3948887, Apr 6, 1976

Apr 8, 1974

5/459258

Robert Bonner Hager - Collegeville PA
Sameeh Said Toukan - Phoenixville PA

Pennwalt Corporation - Philadelphia PA

C07D20300

260239E

The invention concerns epoxides and alcohols of the structures ##EQU1## and [R. sub. f (CH. sub. 2). sub. n SCH. sub. 2 ]. sub. 2 CHOH and various derivatives thereof useful in leather and textile treatment.

4113748, Sep 12, 1978

Apr 8, 1974

5/459132

Robert Bonner Hager - Collegeville PA
Sameeh Said Toukan - Phoenixville PA
Gerald Joseph Walter - King of Prussia PA

Pennwalt Corporation - Philadelphia PA

C07D30334

26034843

The invention concerns epoxides and alcohols of the structures ##STR1## and [R. sub. f (CH. sub. 2). sub. n SCH. sub. 2 ]. sub. 2 CHOH and various derivatives thereof useful in leather and textile treatment.

4115352, Sep 19, 1978

May 23, 1977

5/799862

Joseph Michael Bohen - King of Prussia PA
Sameeh Said Toukan - Phoenixville PA

Pennwalt Corporation - Philadelphia PA

C08K 559, C08K 558, C08K 536

260 4575B

Mixtures of alkali and alkaline earth metal salts of mercaptans or mercapto acids with specified sulfur containing organotin or antimony compounds are disclosed herein as heat stabilizers for halogenated resins.