Patents by Inventor Jeffrey S. Plotkin

Jeffrey S. Plotkin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5045572
    Abstract: This invention relates to a radiation curable crosslinkable composition containing (a) from about 0.1 to about 5 wt. % of an initiator containing at least 25% cationic initiator, (b) from about 0 to about 60 wt. % of a polymerizable vinyl ether, epoxide, vinyloxy alkyl urethane or acrylate and (c) from about 35 to about 99.9% wt. % of a polyfunctional alkenyl ether having the formulaA[(CH.sub.2 O).sub.m (Z).sub.r CH.dbd.CHR].sub.nwherein A is a carbon atom, --OCH.dbd.CHR or [C.sub.1 to C.sub.10 alkyl].sub.4-n ; R is C.sub.1 to C.sub.6 alkyl; Z is C.sub.2 to C.sub.8 alkyleneoxy; r has a value of from 0 to 6; m has a value of from 0 to 1 and at least one of r and m has a positive value; n has a value of from 1 to 4, with the proviso that m is 0 and n is one when A is --OCH.dbd.CHR, n has a value of 2 or 3 when A is [C.sub.1 to C.sub.10 alkyl].sub.4-n and n has a value of 4 when A is carbon.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: September 3, 1991
    Assignee: GAF Chemicals Corporation
    Inventors: Jeffrey S. Plotkin, James A. Dougherty, Fulvio J. Vara, Paul D. Taylor
  • Patent number: 5039716
    Abstract: Subject invention relates to alk-1-enyl ether silicates having the formula[X].sub.4-n Si[OR.sub.1 OCH.dbd.CH--R.sub.2 ].sub.nwhereinX is halogen or --OR wherein R is lower alkyl or a mixture of halogen and OR, a mixture of OR and hydrogen or a mixture of halogen and hydrogen;R.sub.1 contains from 1 to 8 carbon atoms and is alkylene, alkenylene, alkynylene, optionally alkoxylated with up to 20 units of ##STR1## wherein Y is hydrogen or methyl and R.sub.2 is each hydrogen or lower alkyl and n has a value of from 1 to 4. The invention also relates to the process for preparing the above vinyl ether silicates and to their use as chemically resistant coatings.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: August 13, 1991
    Assignee: GAF Chemicals Corporation
    Inventors: Fulvio J. Vara, James A. Dougherty, Jeffrey S. Plotkin, Kolazi S. Narayanan, Paul D. Taylor
  • Patent number: 5036112
    Abstract: This invention relates to a cross-linkable, cationic radiation curable composition comprising (a) a non-volatile vinyl ether, epoxide, acrylate or an oligomer thereof (b) a cationic photoinitiator and (c) a divinyl ether polyacetal oligomer having the formula ##STR1## wherein n has a value of from 1 to 50;X is uniformly sulfur or oxygen;R is C.sub.2 to C.sub.4 alkeneoxy alkylene, poly(alkyleneoxy) alkylene, or a branched, linear or cyclic C.sub.2 to C.sub.20 alkylene andR' is phenylene, diphenylene methane, diphenylene propane, xylylene, tolylene, or a branched, linear or cyclic C.sub.2 to C.sub.20 alkylene optionally substituted with an ether, ester, carbonate, carbamate, C.sub.2 to C.sub.4 alkyleneoxy alkylene or poly(C.sub.2 to C.sub.4 alkyleneoxy) alkylene radical. The invention also relates to the composition cured on a substrate.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: July 30, 1991
    Assignee: GAF Chemicals Corporation
    Inventors: James A. Dougherty, Jeffrey S. Plotkin, Fulvio J. Vara, Kolazi S. Narayanan
  • Patent number: 4954593
    Abstract: The invention relates to a copolymer having the structure ##STR1## wherein R.sub.3 is lower alkyl or hydrogen; x is an integer having a value of from 100 to 15,000; R.sub.1 is a saturated radical or a radical having a terminal vinyl group and is selected from the group consisting of alkoxylated vinyl; alkoxylated alkanol; alkyl optionally substituted with one or more vinyl ether, alkylate,hydroxy or alkoxylated vinyl groups and phenyl optionally substituted with one or more lower alkyl, hydroxy, alkoxylate or alkoxylated vinyl groups. The invention also relates to the use of said copolymer as a protective coating.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: September 4, 1990
    Assignee: GAF Chemical Corporation
    Inventors: Fulvio J. Vara, James A. Dougherty, Jeffrey S. Plotkin
  • Patent number: 4714788
    Abstract: In a process for separating C.sup.4 to C.sup.7 tertiary mono-olefins(s) present in a C.sup.4 to C.sup.7 hydrocarbon mixture containing diolefins which comprises selectively reacting said tertiary mono-olefin mixture with a primary alcohol in the presence of an acid catalyst to convert it to tertiary ether(s), separating the tertiary ether(s) from the unreacted hydrocarbon mixture and containing said tertiary ether(s) in the presence of a catalyst to decompose it to tertiary olefin(s) and a primary alcohol, the improvement which comprises hydrogenating the tertiary ether(s) after it has been separated from the unreacted hydrocarbon mixture and prior to decomposition to saturate the unsaturated ether(s) formed from the diolefins present in the hydrocarbon mixture.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: December 22, 1987
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Robert C. Michaelson, Jeffrey S. Plotkin
  • Patent number: 4410715
    Abstract: A process for epoxidizing olefins with hydrogen peroxide in the presence of a catalyst composition comprising a Group V element containing Co-catalyst I, such as diphenylarsinic acid, and a phenol containing compound having a pK.sub.a of from about 5 to about 13 as Co-catalyst II such as p-chlorophenol is disclosed.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: October 18, 1983
    Assignee: Exxon Research & Engineering Co.
    Inventors: Charles H. McMullen, Eugene E. Fehskens, Jeffrey S. Plotkin
  • Patent number: 4349522
    Abstract: H.sub.2 Os.sub.3 (CO).sub.10 has apparent Lewis base character and can be made to react with electron deficient iron, cobalt and nickel carbonyls, including salts of [Fe(CO).sub.4 ].sup.2-, Fe.sub.2 (CO).sub.9, (.eta..sup.5 -C.sub.5 H.sub.5)Co(CO).sub.2, Co.sub.2 (CO).sub.8 and [(.eta..sup.5 -C.sub.5 H.sub.5)Ni(CO)].sub.2, to give heteronuclear tri-osmium carbonyl hydrides, some of which are new compounds. New compounds disclosed include H.sub.2 Fe.sub.2 Os.sub.3 (CO).sub.16,H.sub.2 Fe.sub.2 Os.sub.3 (CO).sub.15, H.sub.2 (.eta..sup.5 -C.sub.5 H.sub.5)CoOs.sub.3 (CO).sub.10 and H.sub.3 (.eta..sup.5 -C.sub.5 H.sub.5)NiOs.sub.3 (CO).sub.9.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: September 14, 1982
    Assignee: The Ohio State University Research Foundation
    Inventors: Sheldon G. Shore, Jeffrey S. Plotkin
  • Patent number: 4282197
    Abstract: Disclosed is the new pentanuclear bimetallic cluster complex H.sub.2 Fe.sub.2 Os.sub.3 (CO).sub.15. Such complex is made by reacting a salt of [HFe(CO).sub.4 ].sup.1- and H.sub.2 Os.sub.3 (CO).sub.10 in a solvent which solubilizes said salt to generate an [HFe(CO).sub.4 ].sup.1- anion. Addition of a protic acid then causes the formation of H.sub.2 Fe.sub.2 Os.sub.3 (CO).sub.15.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: August 4, 1981
    Assignee: The Ohio State University Research Foundation
    Inventors: Sheldon G. Shore, Jeffrey S. Plotkin, Donna G. Alway