Patents by Inventor Stanley J. Gromelski

Stanley J. Gromelski 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).

  • Copolymerizable ultraviolet light absorber members which are .alpha.,.beta. -
    Patent number: 4312995
    Abstract: This invention relates to copolymerizable ultraviolet light absorber monomers which are .alpha.,.beta.-unsaturated dicarboxylic half-esters of 2-hydroxy,alkoxy,methylolbenzophenone intermediate compounds. The monomers have the formula: ##STR1## where R is alkyl C.sub.1 -C.sub.8, and n is 1 or 2, andY is a half-acyl radical of a .alpha.,.beta.-unsaturated dicarboxylic acid selected from the group of maleic and itaconic acids.The monomers herein are made by monoesterifying intermediate compounds, prepared by converting a 2-hydroxy,alkoxy,benzophenone to the corresponding methylol derivative by a formylation reaction, with the anhydride of the desired acid.In the preferred embodiments of the invention, the alkoxy group is methoxy in the 4-position, the methylol group which is half-esterified is a monomethylol group located at the 3- or 5- position of the phenyl ring containing the hydroxy group, and the acid anhydride is maleic anhydride.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: January 26, 1982
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, Prakash Mallya, Stanley J. Gromelski, Jr.
  • Copolymerizable ultraviolet light absorber monomers which are acrylate esters of 2-hydroxy, alkoxy, methylol benzophenones
    Patent number: 4310687
    Abstract: This invention relates to copolymerizable ultraviolet light monomers which are acrylate esters of 2-hydroxy, alkoxy, methylolbenzophenones having the formula: ##STR1## where R is alkyl C.sub.1 -C.sub.8,n is 1 or 2, andY is a copolymerizable radical selected from acryloyl and alkylacryloyl.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: January 12, 1982
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, Prakash Mallya, Stanley J. Gromelski, Jr.
  • 2-Hydroxy,alkoxy,methylolbenzophenone intermediate compounds for the manufacture of improved copolymerizable ultraviolet light absorber compounds
    Patent number: 4302606
    Abstract: This invention relates to 2-hydroxy,alkoxy,methylolbenzophenone intermediate compounds for the manufacture of copolymerizable ultraviolet light absorber compounds. The intermediates have the formula: ##STR1## where R is alkyl C.sub.1 -C.sub.8, andn is 1 or 2.The intermediate compounds herein are prepared by converting a 2-hydroxy,alkoxy,benzophenone to the corresponding methylol derivative by a formylation reaction.In the preferred embodiments of the invention, the alkoxy group is methoxy in the 4-position, and methylol is a monomethylol group located at the 3- or 5- position of the phenyl ring containing the hydroxy group.The intermediates of this invention can be transformed into useful copolymerizable ultraviolet light absorber compounds by monoesterification with an .alpha.,.beta.-unsaturated dicarboxylic acid anhydride to produce the corresponding polymerizable half-ester compound, or by esterification with an acryloyl halide to form corresponding acrylate compound.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: November 24, 1981
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, Prakish Mallya, Stanley J. Gromelski
  • Ultraviolet light stable copolymer compositions comprising monomers which are .alpha.,62 -unsaturated dicarboxylic acid half-esters of 2-hydroxy, alkoxy, methylolbenzophenones and styrene-butadiene comonomers
    Patent number: 4301267
    Abstract: This invention relates to ultraviolet light stable copolymer compositions comprising:(a) a monomer which is an .alpha.,.beta.-unsaturated dicarboxylic half-ester of a 2-hydroxy, alkoxy, methylolbenzophenone, and,(b) a comonomer which is styrene or styrene-butadiene, is described.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: November 17, 1981
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, Prakash Mallya, Stanley J. Gromelski, Jr.