GERALD A BULLANO
Engineers in Delaware

4485210, Nov 27, 1984

Apr 6, 1983

6/482385

David S. Neiditch - Evansville IN
Gerald A. Bullano - Glen Mills PA
Robert J. DiLullo - Paoli PA
David E. Ofstein - West Chester PA

Atlantic Richfield Company - Los Angeles CA

C08F29704

525 53

A continuous process for producing star-block copolymer of a monovinyl aromatic monomer and a conjugated diene by continuously forming a vinyl aromatic polymer having a low weight average molecular weight to number average molecular weight ratio in a first reactor by anionic initiation in a solution of inert solvent; discharging a solution of polymer from the first reactor and passing the solution to a second sealed, cylindrical, pressurized, vertical reactor having a bottom zone, top zone and a plurality of intermediate zones separated by separation plates, each having a central aperture and mixing shaft passing therethrough, with the mixture passing to successive zones through an annular space formed between the shaft and each separation plate. The continuously produced solution of diblock copolymer is removed from the top zone of the second reactor and mixed with a polyfunctional coupling agent in a third reactor to produce a solution of star-block copolymer, with that solution discharged from the third reactor and contacted with a terminating agent, and the resultant star-block copolymer separated from the solvent.

4442273, Apr 10, 1984

Apr 6, 1983

6/482391

David S. Neiditch - Evansville IN
Gerald A. Bullano - Glen Mills PA
Robert J. DiLullo - Paoli PA
David E. Ofstein - West Chester PA

Atlantic Richfield Company - Los Angeles CA

C08F 206

526 88

A process and apparatus for the continuous polymerization of monovinyl aromatic monomers, such as styrene, to produce a substantially monodisperse polymer, wherein a solution of monomer in an inert solvent and a hydrocarbyllithium initiator are fed to the bottom zone of a sealed, cylindrical, pressurized, vertical reactor having a plurality of zones, with separation plates separating the reactor into a bottom, a plurality of intermediate, and top zones, the separation plates each having a central aperture, and a mixing means for each zone has a shaft extending through the apertures to provide an annular space for flow of fluid through the zones, the annular space between each separation plate and the shaft of the mixing means being of a size to provide a pressure differential between adjacent zones of less than about one pound per square inch, a substantially monodisperse polymer in solution discharged from the top zone of the reactor.

4230877, Oct 28, 1980

Mar 22, 1979

6/022749

Edward T. Shawl - Wallingford PA
Gerald A. Bullano - Glen Mills PA

Atlantic Richfield Company - Los Angeles CA

C07C12504

560 25

A method for increasing the 4,4' disubstituted isomer of the diphenylmethane dicarbamates produced by the acid catalyzed condensation of an N-aryl carbamic acid ester, such as ethylphenylcarbamate, with a carbonyl compound, such as formaldehyde, which comprises carrying out the condensation in a single phase system with a dilute solution of the N-aryl carbamic acid ester in an inert solvent having a dielectric constant of at least 20 at 20. degree. C. The solvent must have good solubility for the carbamates, which carbamates are employed in the solvent at concentrations of from about 0. 1 to 50 weight percent to provide a product enriched with the 4,4'-diphenylmethane dicarbamate isomer.

5998672, Dec 7, 1999

Nov 11, 1998

9/189550

Ahmad Soltani-Ahmadi - Radnor PA
Bi Le-Khac - West Chester PA
Gerald A. Bullano - Glen Mills PA

Arco Chemical Technology, L.P. - Greenville DE

C07C 4311

568620

Double metal cyanide catalysts, prepared by drying a catalyst slurry by a non-agglomerative drying method such as spray drying or freeze drying, directly produces catalyst particles of fine particle size such that intensive grinding is not required. The catalysts thus produced are different from conventionally dried particles in that polyoxyalkylation may be conducted with less reactor fouling and a polyoxyalkylene product of lower unsaturation and narrower polydispersity may be obtained.

5900384, May 4, 1999

Jul 18, 1996

8/683269

Ahmad Soltani-Ahmadi - Radnor PA
Bi Le-Khac - West Chester PA
Gerald A. Bullano - Glen Mills PA

Arco Chemical Technology L.P. - DE

B01J 2726

502175

Double metal cyanide catalysts, prepared by drying a catalyst slurry by a non-agglomerative drying method such as spray drying or freeze drying, directly produces catalyst particles of fine particle size such that intensive grinding is not required. The catalysts thus produced are different from conventionally dried particles in that polyoxyalkylation may be conducted with less reactor fouling and a polyoxyalkylene product of lower unsaturation and narrower polydispersity may be obtained.