Douglas Scott Brenner

US Patent:

6563616, May 13, 2003

Filed:

Feb 21, 1999

Appl. No.:

09/253312

Inventors:

Douglas Brenner - New York City NY

Assignee:

Electro-Optical Sciences, Inc. - Irvington NY

International Classification:

H04J 1402

US Classification:

359127, 359583, 359634

Abstract:

A compact wavelength division demultiplexer device comprises two cascaded interferometers the wedge angle of whose mirrors are orthogonal to each other, i. e. , the two interferometers are oriented such that the dispersion of light with wavelength from the second interferometer is orthogonal to the dispersion of light with wavelength from the first interferometer. The incoming beam of laser light carrying n sub-bands of m information channels is collimated and applied to the first interferometer whose free spectral range is determined by the total bandwidth required by the nÃm channels and whose finesse is determined by the resolution needed to spatially separate each of the n sub-bands from one another. The light leaving the first interferometer enters the second interferometer whose wedge angle is at 90 degrees to the plane of the wedge angle of the first interferometer. The free spectral range of the second interferometer is determined by the number (m) of channels within a sub-band and its finesse is determined by the need to resolve the m channels from one another.

US Patent:

42218870, Sep 9, 1980

Filed:

Jul 17, 1978

Appl. No.:

5/924968

Inventors:

Douglas Brenner - Livingston NJ
Alexis A. Oswald - Mountainside NJ

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08G 7500
C08L 1900

US Classification:

525332

Abstract:

Polymers comprising quaternary phosphonium counter-ion salts of acids having anionic groups covalently bonded to carbon atoms comprising a backbone chain of a polymer, or to acrylic, alicyclic or aromatic radicals which are pendant to the backbone chain of the polymer are novel compositions of matter. Such polymers vary in properties from water-soluble polyelectrolytes useful as thickening agents to thermoplastic elastomers which can be extruded, injection molded, vacuum formed, etc. at elevated temperatures. The elastomeric ionomers are useful as specialty and general purpose rubbers. The ionomers of the instant invention are plasticized with a select group of plasticizers thereby improving the rheological properties of the ionomers.

US Patent:

41028767, Jul 25, 1978

Filed:

Apr 18, 1977

Appl. No.:

5/788312

Inventors:

Douglas Brenner - Livingston NJ
Alexis A. Oswald - Mountainside NJ

Assignee:

Exxon Research & Engineering Co. - Linden NJ

International Classification:

C08G 7500
C08L 1900

US Classification:

526 19

Abstract:

Ionomers comprising quaternary phosphonium counterion salts of acids having anionic groups covalently bonded to carbon atoms comprising a backbone chain of a polymer, or to acyclic, alicyclic or aromatic radicals which are pendant to the backbone chain of the polymer are novel compositions of matter. The ionomers vary in properties from water-soluble polyelectrolytes useful as thickening agents to thermoplastic elastomers which can be extruded, injection molded, vacuum formed, etc. at elevated temperatures. The elastomers are useful as specialty and general purpose rubbers.

US Patent:

41183622, Oct 3, 1978

Filed:

Nov 29, 1977

Appl. No.:

5/855554

Inventors:

Henry S. Makowski - Scotch Plains NJ
Douglas Brenner - Livingston NJ

Assignee:

Exxon Research & Engineering Co. - Linden NJ

International Classification:

C08K 520

US Classification:

260 326A

Abstract:

This invention relates to improved elastomeric compositions of metal and ammonium neutralized sulfonated EPDM terpolymers which are preferentially plasticized with an aliphatic organic amide at a minimum critical concentration level of at least 8 parts by weight based on 100 parts by weight of the metal neutralized EPDM terpolymer, wherein the composition has a balance of improved physical and rheological properties. These compositions can be readily processed due to their superior rheological properties on conventional plastic fabrication equipment.

US Patent:

41750691, Nov 20, 1979

Filed:

Oct 2, 1978

Appl. No.:

5/947430

Inventors:

Douglas Brenner - Livingston NJ

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08K 518

US Classification:

260 326A

Abstract:

This invention relates to an improved elastomeric composition of metal neutralized sulfonated elastomeric polymers which are plasticized with critically selected polydentate amines wherein the plasticized compositions have improved rheological properties. These elastomeric compositions can be processed on conventional plastic fabrication equipment into high performance elastomeric articles.

US Patent:

41861639, Jan 29, 1980

Filed:

Oct 4, 1977

Appl. No.:

5/839172

Inventors:

Douglas Brenner - Livingston NJ
Robert D. Lundberg - Somerville NJ

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

B29D 2700

US Classification:

264 54

Abstract:

This invention relates to a novel elastomeric foamed material which has surprisingly been found to exhibit a variety of unusual and desirable features both in its physical properties and in its process of manufacture. These foamed compositions of a lightly sulfonated elastomeric gum contain a nonvolatile polar plasticizer and preferably extenders such as oil and fillers. These elastomer foams exhibit an unusual profile of physical properties including melt reprocessability of fabricated articles, and high temperature reshaping of foamed objects while maintaining a good foam structure. These novel foams can be manufactured with relatively uniform cell structures and with small cell sizes at foam densities from near bulk density to less than 0. 1 g/cc.

US Patent:

41183592, Oct 3, 1978

Filed:

Nov 29, 1977

Appl. No.:

5/855693

Inventors:

Douglas Brenner - Livingston NJ

Assignee:

Exxon Research & Engineering Co. - Linden NJ

International Classification:

C08K 536

US Classification:

260 308R

Abstract:

This invention relates to an improved elastomeric composition of metal and ammonium neutralized sulfonated elastomeric polymers which are preferentially plasticized with an organic urea or organic thiourea at a minimum critical concentration level of at least 5 parts by weight based on 100 parts by weight of the metal neutralized elastomeric polymer, wherein the plasticized compositions have an improved balance of physical and rheological properties. These elastomeric compositions can be readily processed due to their superior rheological properties on conventional plastic fabrication equipment.

US Patent:

41315871, Dec 26, 1978

Filed:

Nov 29, 1977

Appl. No.:

5/855547

Inventors:

Douglas Brenner - Livingston NJ

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08K 518

US Classification:

260 326A

Abstract:

This invention relates to an improved elastomeric composition of metal and ammonium neutralized sulfonated elastomeric polymers which are preferentially plasticized with a critically selected non volatile amine at a minimum critical concentration level of at least 8 parts by weight based on 100 parts by weight of the metal neutralized elastomeric polymer, wherein the plasticized compositions have improved physical or rheological properties. These elastomeric compounds can be processed on conventional plastic fabrication equipment.