Patents by Inventor Anne L. Schwartz

Anne L. Schwartz 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).

  • Preparation of differentially dyeable polyamide having N-haloamine end groups and amino end groups
    Patent number: 4777222
    Abstract: A method for producing a differentially dyeable polyamide is disclosed. Polyamides produced according to the process of this invention will have distinct areas thereon that show varying degrees of receptivity to acid dyes and can thereby be differentially dyed using a single dyebath.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: October 11, 1988
    Assignee: Armstrong World Industries, Inc.
    Inventors: Xuan T. Phan, Paul J. Shannon, Anne L. Schwartz
  • Differential acid dyeing of polyamide
    Patent number: 4722979
    Abstract: A method for producing a differentially dyeable polyamide is disclosed. Polyamides produced according to the process of this invention will have distinct areas thereon that show varying degrees of receptivity to acid dyes and can thereby be differentially dyed using a single dyebath.
    Type: Grant
    Filed: February 12, 1986
    Date of Patent: February 2, 1988
    Assignee: Armstrong World Industries, Inc.
    Inventors: Xuan T. Phan, Paul J. Shannon, Anne L. Schwartz
  • Mono-sulfonyl azide composition used to photolytically develop a colored image on a cellulosic material
    Patent number: 4640885
    Abstract: The present invention discloses a method of photolytically developing a colored image on a cellulosic material. In this method, the material is contacted with a nitrogen containing polymer in solution and a mono-sulfonyl azide compound in solution. The sample is thereafter exposed to a UV-containing light source for an amount of time sufficient to develop a color thereon.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: February 3, 1987
    Assignee: Armstrong World Industries, Inc.
    Inventors: Ronald S. Lenox, Anne L. Schwartz, Charles E. Hoyle
  • Differential acid dyeing of polyamide reacted with N-halogenating agent
    Patent number: 4603178
    Abstract: A method for producing a differentially dyeable polyamide is disclosed. The method comprises selectively reacting a polyamide's free amines with an N-halogenating agent. Polyamides produced according to the process of this invention will have distinct areas thereon that show varying degrees of receptivity to acid dyes and can thereby be differentially dyed using a single dyebath.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: July 29, 1986
    Assignee: Armstrong World Industries, Inc.
    Inventors: Xuan T. Phan, Paul J. Shannon, Anne L. Schwartz
  • Development of a colored image on a cellulosic material with monosulfonyl azides
    Patent number: 4556625
    Abstract: The present invention discloses a method of photolytically developing a colored image on a cellulosic material. In this method, the material is contacted with a nitrogen containing polymer in solution and a mono-sulfonyl azide compound in solution. The sample is thereafter exposed to a UV-containing light source for an amount of time sufficient to develop a color thereon.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: December 3, 1985
    Assignee: Armstrong World Industries, Inc.
    Inventors: Ronald S. Lenox, Anne L. Schwartz, Charles E. Hoyle
  • Decorative sheets and coverings comprising polyvinyl chloride and cationic dyestuffs
    Patent number: 4452604
    Abstract: The present invention concerns our discovery that decorative sheets and coverings comprising polyvinyl chloride and having substantially non-migratable through-color images may be prepared using cationic dyestuffs. These coverings may be prepared by providing a variety of polyvinyl chloride-containing substrates with image compositions comprising cationic dyestuffs and a suitable binder, and then treating these materials such that the cationic dyestuffs migrate into the substrate. Through-color images are obtained which are substantially non-migrating, even under severe conditions.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: June 5, 1984
    Assignee: Armstrong World Industries, Inc.
    Inventors: Ronald S. Lenox, Anne L. Schwartz, Moses Sparks, Jr.
  • Process for reducing the acid dye uptake of polyamide textile materials with N-acylimidazole compound
    Patent number: 4343923
    Abstract: A method for decreasing a polyamide textile material's affinity for acid dyes, which comprises pretreating the textile material with an acylimidazole compound.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: August 10, 1982
    Assignee: Armstrong World Industries, Inc.
    Inventors: Ronald S. Lenox, Anne L. Schwartz