Patents by Inventor Philip F. Wolf

Philip F. Wolf 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).

  • Colorless, purified polymerizable composition useful for the production of crosslinked polyvinylpyrrolidone
    Patent number: 5391668
    Abstract: What is provided herein is a colorless, purified polymerizable composition useful for the production of crosslinked polyvinylpyrrolidone. The polymerizable composition includes about 74-96% by weight vinylpyrrolidone monomer and 4-26% by weight of the isomeric compound 1-vinyl-3(E)-ethylidene pyrrolidone as crosslinker. The polymerizable composition is used to make crosslinked polyvinylpyrrolidone rapidly upon heating the composition at about 80.degree.-120.degree. C. in the absence of base.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: February 21, 1995
    Assignee: ISP Investments Inc.
    Inventors: Susan Y. Tseng, Philip F. Wolf
  • Molded crosslinked vinyl lactam polymer gel and method of preparation
    Patent number: 5362796
    Abstract: This invention relates to a moldable crosslinked vinyl lactam polymer composition and to a transparent, formed gel product obtained therefrom having desired flexibility coupled with high mechanical strength and dimensional and thermal stability. The invention also relates to the method of preparing said molded gel products.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: November 8, 1994
    Assignee: ISP Investments Inc.
    Inventors: Susan Y. Tseng, Philip F. Wolf
  • Process for obtaining a polymerizable reaction solution
    Patent number: 5360883
    Abstract: What is provided herein is a process for obtaining a polymerizable reaction solution which includes 5-30% by weight of a crosslinker which is the isomeric compound 1-vinyl-3(E)-ethylidene pyrrolidone and 50-80% by weight of a monomer which is vinylpyrrolidone. The polymerizable solution can be used to make crosslinked polyvinylpyrrolidone rapidly upon heating the solution at about 80.degree.-120.degree. C. in the absence of base.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: November 1, 1994
    Assignee: ISP Investments Inc.
    Inventors: Susan Y. Tseng, Philip F. Wolf
  • Films and extrusions of cured crosslinked vinyl lactam polymer and method of preparation
    Patent number: 5354823
    Abstract: This invention relates to a continuous film, coating, membrane or extruded filament of a crosslinked vinyl lactam polymer having excellent substrate adhesion, a glass transition temperature (Tg) above 150.degree. C. and water repellent properties. The invention also relates to the method of preparing and using filaments, coatings and membranes of said crosslinked polymeric product.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: October 11, 1994
    Assignee: ISP Investments Inc.
    Inventors: Susan Y. Tseng, Philip F. Wolf, William J. Burlant
  • Process for obtaining the isomeric compound 1-vinyl-3(E)-ethylidene pyrrolidone
    Patent number: 5342964
    Abstract: What is provided herein is a process for obtaining the isomeric compound 1-vinyl-3(E)-ethylidene pyrrolidone in a purity of at least 95%, in the form of white, needle-shaped crystals having a melting point of 59.degree.-61.degree. C.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: August 30, 1994
    Assignee: ISP Investments Inc.
    Inventors: Susan Y. Tseng, Philip F. Wolf
  • Molded cellular crosslinked vinyl lactam polymer gel and method of preparation
    Patent number: 5336697
    Abstract: This invention relates to a foamed, cellular crosslinked vinyl lactam polymer and to a formed rigid product obtained therefrom having dimensional stability and a high Tg above 150.degree. C. The invention also relates to the method of preparing said molded cellular polymer.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: August 9, 1994
    Assignee: ISP Investments Inc.
    Inventors: Philip F. Wolf, Susan Y. Tseng
  • Process for obtaining 1-vinyl-3(E)-ethylidene pyrrolidone
    Patent number: 5286876
    Abstract: What is provided herein is a process for obtaining the isomeric compound 1-vinyl-3(E)-ethylidene pyrrolidone in a purity of at least 95%, in the form of white, needle-shaped crystals having a melting point of 59.degree.-61.degree. C.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: February 15, 1994
    Assignee: ISP Investments Inc.
    Inventors: Susan Y. Tseng, Philip F. Wolf
  • Molded cellular crosslinked vinyl lactam polymer gel and method of preparation
    Patent number: 5280049
    Abstract: This invention relates to a foamed, cellular crosslinked vinyl lactam polymer and to a formed rigid product obtained therefrom having dimensional stability and a high Tg above 150.degree. C. The invention also relates to the method of preparing said molded cellular polymer.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: January 18, 1994
    Assignee: ISP Investments Inc.
    Inventors: Philip F. Wolf, Susan Y. Tseng
  • 1-vinyl-3(E)-ethylidene pyrrolidone
    Patent number: 5274120
    Abstract: What is provided herein is 1-vinyl-3(E)-ethylidene pyrrolidone in a purity of at least 95%, in the form of white, needle-shaped crystals having a melting point of 59.degree.-61.degree. C.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: December 28, 1993
    Assignee: ISP Investments Inc.
    Inventors: Susan Y. Tseng, Philip F. Wolf
  • Formable coatings
    Patent number: 5112887
    Abstract: A coating composition capable of substantial deformation without loss of continuity, adhesion or protective properties. The coating composition comprises a phenoxy resin mixed with a relatively soft modifier resin having certain specific properties. In a preferred embodiment, a particulate material, such as a zinc pigment, may also be included. A crosslinker may also be included.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: May 12, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Ismael Colon, Charles N. Merriam, Philip F. Wolf
  • Hydrolysis of alkylene carbonates to aklylene glycols
    Patent number: 4524224
    Abstract: This invention is concerned with producing glycols of the formulaHOCHRCH.sub.2 OHfrom hydrolysis, in a homogeneous liquid phase mixture, of an alkylene carbonate of the formula ##STR1## in which R is either hydrogen or methyl. This is accomplished by using an amount of water in excess of stoichiometry and using potassium carbonate as the preferred catalyst. The reaction is effected under a carbon dioxide pressure of at least 80 psig and the reaction temperature is desirably between about 85.degree. C. and 500.degree. C.
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: June 18, 1985
    Assignee: Union Carbide Corporation
    Inventors: Glenn A. Taylor, Philip F. Wolf
  • Polyol ester functional fluids
    Patent number: 4313890
    Abstract: Synthetic polyol ester fluids useful as lubricants or hydraulic fluids have been prepared by the esterification of ethylene-methyl formate telomerization products with polyols containing from two to about six hydroxyl groups.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: February 2, 1982
    Assignee: Union Carbide Corporation
    Inventors: Nan S. Chu, Nye A. Clinton, Robert A. Cupper, Philip F. Wolf, Priscilla B. Stanley
  • Conversion of cyclohexanol to .epsilon.-caprolactone
    Patent number: 4183863
    Abstract: Cyclohexanol is first autoxidized to a peroxide intermediate and then contacted with selenium dioxide catalyst and a base to afford .epsilon.-caprolactone.
    Type: Grant
    Filed: April 18, 1978
    Date of Patent: January 15, 1980
    Assignee: Union Carbide Corporation
    Inventors: David P. Higley, Philip F. Wolf