Anatoly A Alexander

US Patent:

6462201, Oct 8, 2002

Filed:

Dec 29, 1998

Appl. No.:

09/222197

Inventors:

Anatoly Alexander - Berkeley Heights NJ
Mikhail Raykh - East Brunswick NJ

Assignee:

ISP Investments Inc. - Wilmington DE

International Classification:

C07D207267

US Classification:

548543

Abstract:

A single stage process, with recirculation of reactants, is provided herein for making N-vinylpyrrolidone or N-vinyl caprolactam at a high reaction rate and selectivity and at a predetermined conversion per pass. In this process a reaction mixture is formed by saturating a non-aqueous, liquid mixture of recirculating lactam, vinyl lactam and catalyst with acetylene at low temperatures and pressures to provide a high concentration of acetylene in the liquid, pumping the saturated solution into a reactor, reacting the mixture as a single liquid phase, cooling the reaction product, withdrawing a portion of the cooled product, recirculating the rest into the reaction mixture, and continuously feeding additional lactam and catalyst therein.

US Patent:

54277744, Jun 27, 1995

Filed:

Dec 15, 1994

Appl. No.:

8/356616

Inventors:

Ratan K. Chaudhuri - Butler NJ
Anatoly Alexander - Berkeley Heights NJ
Anna A. Gripp - Whippany NJ

Assignee:

ISP Van Dyk Inc. - Belleville NJ

International Classification:

A61K 706
A61K 742
C07D26304

US Classification:

424 60

Abstract:

This invention relates to non-hydrolyzable, non-irritating, hair, skin and textile substantive quaternary ammonium salts of a para-dialkylamino benzamide having the formula ##STR1## wherein R' and R" are each selected from the group of C. sub. 1 to C. sub. 2 alkyl; n is an integer having a value of from 2 to 6; R is an alkyl radical having from 1 to 30 carbon atoms; R. sub. 1 and R. sub. 2 together with the attached cationic nitrogen atom forms a 5 to 6-membered heterocyclic ring containing a hetero oxygen atom in addition to the heteronitrogen atom and is selected from the group of ##STR2## and X is an anion. These benzamide heterocyclic derivatives are active sunscreening agents which are usefully employed at a concentration of from about 0. 5 to about 10 wt. % in a formulation requiring protection against the harmful effects of sunlight, such as skin burn, hair damage, color fading, etc.

US Patent:

55279473, Jun 18, 1996

Filed:

Dec 19, 1994

Appl. No.:

8/358438

Inventors:

Anatoly Alexander - Berkeley Heights NJ
Ratan K. Chaudhuri - Butler NJ

Assignee:

ISP Van Dyk Inc. - Belleville NJ

International Classification:

C07C 6976

US Classification:

560 55

Abstract:

This invention relates to an improved process for the manufacture of cinnamate compounds, particularly sunscreen agents, useful in cosmetic skin and hair care formulations. The process comprises: (a) dissolving a water insoluble C. sub. 1 to C. sub. 4 alkoxy benzaldehyde and a C. sub. 1 to C. sub. 4 alkyl acetate in a common hydrocarbon solvent; (b) reacting the resulting solution in the presence of a strong alkali metal-containing base under mild conditions to form a mixture containing the corresponding C. sub. 1 to C. sub. 4 alkyl C. sub. 1 to C. sub. 4 alkoxy cinnamate, the alkali metal salt of the enol corresponding to the C. sub. 1 to C. sub. 4 alkyl C. sub. 1 to C. sub. 4 alkoxy cinnamate, the alkali metal salt of a C. sub. 1 to C. sub. 4 alkoxycinnamic acid, and a C. sub. 1 to C. sub. 4 alkanol; (c) acidifying the resulting mixture with from about 0.

US Patent:

57314500, Mar 24, 1998

Filed:

Oct 18, 1995

Appl. No.:

8/544750

Inventors:

Anatoly Alexander - Berkeley Heights NJ
Ratan K. Chaudhuri - Lincoln Park NJ

Assignee:

ISP Van Dyk Inc. - Belleville NJ

International Classification:

C07C 5300
A61K 748

US Classification:

554221

Abstract:

This invention relates to the synthesis of vegetable and synthetic oil adducts and to the adduct products having the formula ##STR1##.

US Patent:

54277736, Jun 27, 1995

Filed:

Dec 15, 1994

Appl. No.:

8/356417

Inventors:

Ratan K. Chaudhuri - Butler NJ
Anatoly Alexander - Berkeley Heights NJ
Anna A. Gripp - Whippany NJ

Assignee:

ISP Van Dyk Inc. - Belleville NJ

International Classification:

A61K 706
A61K 742
C07C22900

US Classification:

424 60

Abstract:

This invention relates to non-hydrolyzable, non-irritating, hair, skin and textile substantive quaternary salts of p-dialkylaminobenzamides having the formula ##STR1## wherein R' and R" are each selected from the group of C. sub. 1 to C. sub. 2 alkyl; n is an integer having a value of from 2 to 3; R is an alkyl radical having from 10 to 18 carbon atoms; R. sub. 1 and R. sub. 2 are each selected from the group of C. sub. 1 to C. sub. 2 alkyl, and X is an anion. These benzamide derivatives are active sunscreening agents which are usefully employed at a concentration of from about 0. 5 to about 10 wt. % in a formulation requiring protection against the harmful effects of sunlight, such as skin burn, hair damage, color fading, etc.

US Patent:

54513944, Sep 19, 1995

Filed:

Aug 25, 1993

Appl. No.:

8/111690

Inventors:

Ratan K. Chaudhuri - Butler NJ
Anatoly Alexander - Berkeley Heights NJ
Anna A. Gripp - Whippany NJ

Assignee:

ISP Van Dyk Inc. - Belleville NJ

International Classification:

C07D24900
C07C23377
A61K 706
A61K 742

US Classification:

424 60

Abstract:

This invention relates to non-hydrolyzable, non-irritating, hair, skin and textile substantive quaternary ammonium salts of a para-dialkylamino benzamide having the formula ##STR1## wherein R' and R" are each selected from the group of C. sub. 1 to C. sub. 2 alkyl; n is an integer having a value of from 2 to 6; R is an alkyl radical having from 1 to 30 carbon atoms; R. sub. 1 and R. sub. 2 are each selected from the group of C. sub. 1 to C. sub. 4 alkyl, hydrogen and, alternatively, R. sub. 1 and R. sub. 2, together with the attached cationic nitrogen atom can form a 5 to 6-membered heterocyclic ring selected from the group of ##STR2## and X is an anion. These benzamide derivatives are active sunscreening agents which are usefully employed at a concentration of from about 0. 5 to about 10 wt. % in a formulation requiring protection against the harmful effects of sunlight, such as skin burn, hair damage, color fading, etc.

US Patent:

52521974, Oct 12, 1993

Filed:

Sep 28, 1992

Appl. No.:

7/952352

Inventors:

Anatoly Alexander - Berkeley Heights NJ
Chuen Y. Yeh - Edison NJ
George D. Suciu - Ridgewood NJ

Assignee:

ABB Lummus Crest Inc. - Bloomfield NJ

International Classification:

C10G 3504

US Classification:

208134

Abstract:

A process for upgrading gasolines and other hydrocarbon mixtures. The hydrocarbon mixture is contacted with a large pore zeolite catalyst in order to crack n-paraffins to form olefins and lower molecular weight n-paraffins, to cause the olefins to react with benzene in order to form alkylbenzenes, and to catalyze the isomerization of the n-paraffins to form i-paraffins. Preferably, all of the above reactions occur in a single reactant mixture in the presence of a zeolite catalyst having ten and/or twelve membered ring-type structures. The process of the invention reduces the benzene quantity of the hydrocarbon mixture and increases its octane number.

US Patent:

20160060200, Mar 3, 2016

Filed:

Feb 7, 2014

Appl. No.:

14/768222

Inventors:

- Geneva 8, CH
Koenraad VANHESSCHE - Feigeres, FR
Anatoly ALEXANDER - Newark NJ, US

Assignee:

FIRMENICH SA - Geneva 8

International Classification:

C07C 45/67

Abstract:

The present invention concerns a process for the isomerisation of an exo double bond toward an endo double bond being performed in the presence of a catalyst system comprising palladium (Pd) or platinum (Pt) and molecular hydrogen or a hydrogen source.