Patents Represented by Attorney James N. Blauvelt
  • Patent number: 3954960
    Abstract: Hair and similar cosmetic preparations, i.e., aerosol hair sprays, hair conditioners, and hair setting lotions, etc. containing as the film-forming resin a quaternized copolymer of vinyl pyrrolidone and a copolymerizable vinyl monomer, i. e., a di-loweralkylaminoalkyl (or hydroxy alkyl) acrylate or methacrylate. Such compositions containing the quaternized copolymer exhibit excellent adhesion and holding power when employed for hair care preparations.
    Type: Grant
    Filed: June 29, 1973
    Date of Patent: May 4, 1976
    Assignee: GAF Corporation
    Inventor: Kent J. Valan
  • Patent number: 3951656
    Abstract: A method for chemically fogging a silver halide photographic emulsion comprising reacting cyanoborohydride anion with the silver halide thereby forming metallic silver. The cyanoborohydride is preferably in the form of an alkali metal salt. Additionally, the emulsion may optionally include a gold salt.
    Type: Grant
    Filed: July 5, 1974
    Date of Patent: April 20, 1976
    Assignee: GAF Corporation
    Inventor: Frederick William Millard
  • Patent number: 3941718
    Abstract: Crosslinked homopolymers and copolymers of N-vinyl-2-pyrrolidone formed by addition polymerization through ethylenically unsaturated groups are polymerized on solid, inert carriers. Heavy crosslinking is employed to render the polymers insoluble. The polymers can be made by copolymerizing, with N-vinyl-2-pyrrolidone, amides or substituted amides of unsaturated carboxylic acids, such as acrylamide, substituted and unsubstituted unsaturated carboxylic acids, such as methacrylic acid or halfacid maleates. Also included are comonomers containing basic nitrogen groups therein, such as vinyl pyridine, or alkylamino acrylates and methacrylates. The polymers are formed on inert substrates of both solid and porous types.
    Type: Grant
    Filed: May 30, 1974
    Date of Patent: March 2, 1976
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, Frederick Grosser
  • Patent number: 3941817
    Abstract: Improved amphoteric surface active agents are obtained from tertiary amides that have been formed by condensation of esters of fatty acids with an aminoalkyl alkanolamine, e.g., aminoethyl ethanolamine, under special conditions, by conventional carboxymethylation with ClCH.sub.2 CO.sub.2 Na or ClCH.sub.2 CO.sub.2 H. The resultant amphoteric surface active agents are especially useful as wetting agents, forming agents, emulsifiers, etc., and in the manufacture of improved shampoos.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: March 2, 1976
    Assignee: GAF Corporation
    Inventor: Paritosh Mohan Chakrabarti
  • Patent number: 3933516
    Abstract: A photographic element or film, such as photographic or medical X-ray film, having improved antistatic and slippage properties can be prepared by applying to said element or film a protective surface containing a calcium stearate dispersion and stearamido-propyl dimethyl-beta-hydroxy-ethyl ammonium nitrate.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: January 20, 1976
    Assignee: GAF Corporation
    Inventor: E. Scudder Mackey