Patents by Inventor Joseph S. Racciato

Joseph S. Racciato 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: 4339239
    Abstract: S-119 is used for the control of migration during pad dyeing of fabrics.
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: July 13, 1982
    Assignee: Merck & Co., Inc.
    Inventor: Joseph S. Racciato
  • Patent number: 4331440
    Abstract: A method of printing using polysaccharide gum S-88 as a thickening agent for printing pastes has been developed. The S-88 gum is gellable in the presence of about above 6% to 50% electrolyte. The gelling characteristic of the gum is useful in both single- and multi-phase print systems. The single-phase print system uses a print paste composition containing the S-88 gum together with about 1-6% concentration of electrolyte which, when applied to a substrate, and when the overall moisture content drop (by such methods as heating, etc.) results in a concomitant increase in electrolyte concentration sufficient to cause gelation. The multi-phase print system uses the electrolyte in one phase and the gellable gum in another; i.e., the electrolyte-containing paste or solution with concentration of 6-50% electrolyte is either impregnated on or in the substrate or is present in the printing paste which is applied before or after the S-88 gum-containing paste.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: May 25, 1982
    Assignee: Merck & Co. Inc.
    Inventor: Joseph S. Racciato
  • Patent number: 4324554
    Abstract: TKP is used for the control of migration during pad dyeing of fabrics.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: April 13, 1982
    Assignee: Merck & Co., Inc.
    Inventor: Joseph S. Racciato
  • Patent number: 4311601
    Abstract: S-119 is used as a warp size for textiles, either alone or as an additive with other sizes such as starch, polyvinyl alcohol, CMC, etc.
    Type: Grant
    Filed: August 13, 1980
    Date of Patent: January 19, 1982
    Assignee: Merck & Co., Inc.
    Inventor: Joseph S. Racciato
  • Patent number: 4270916
    Abstract: Cationic or certain anionic dyes are rendered compatible with normally incompatible anionic and nonanionic polymers by the addition of certain surface active agents.
    Type: Grant
    Filed: September 6, 1978
    Date of Patent: June 2, 1981
    Assignee: Merck & Co., Inc.
    Inventor: Joseph S. Racciato
  • Patent number: 4257768
    Abstract: Novel blends of algin and TKP are disclosed. The blends are useful in commercial gum applications where thickening, suspending, emulsifying, stabilizing, film-forming, and gel-forming properties are needed. They are particularly useful in the paper and textile industries.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: March 24, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Joseph S. Racciato, Robert I. Yin
  • Patent number: 4214912
    Abstract: This invention relates to a deacetylated borate-biosynthetic gum or a partially deacetylated borate-biosynthetic gum having improved dispersion characteristics. The invention also relates to a method of preparing such compositions.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: July 29, 1980
    Assignee: Merck & Co., Inc.
    Inventors: Joseph S. Racciato, Ian W. Cottrell
  • Patent number: 4155885
    Abstract: A series of novel amphoteric graft copolymers of xanthomonas hydrophilic colloid and partially N-aminoalkylated acrylamide has been prepared by reacting the corresponding acrylamide copolymer with an alkyl amine and an active aldehyde. The new copolymer is cationized via acidification or quaternization, and is reverted to its anionic form via basification.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: May 22, 1979
    Assignee: Merck & Co., Inc.
    Inventors: Joseph S. Racciato, Ian W. Cottrell, Jaewon L. Shim
  • Patent number: 4105605
    Abstract: A water-soluble anionic graft copolymer of xanthan gum and polyacrylamide wherein at least part of the amide function is sulfomethylated.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: August 8, 1978
    Assignee: Merck & Co., Inc.
    Inventors: Ian W. Cottrell, Richard A. Empey, Joseph S. Racciato
  • Patent number: 4105461
    Abstract: A blend of xanthan gum, guar gum, or guar gum derivatives, a starch ether has unique thickening properties. The blend is particularly useful in printing pastes, salad dressings and oil well drilling muds.
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: August 8, 1978
    Assignee: Merck & Co., Inc.
    Inventor: Joseph S. Racciato
  • Patent number: 4073653
    Abstract: Sodium cellulose sulfate can be used alone, or in combination with other natural or synthetic gums, as thickening agents for fabric printing paste compositions containing acid dyes. The printing paste is applied in the usual manner, and then the printed goods are heated. The sodium cellulose sulfate content of the paste, upon heating, fixes the acid dye on the printed goods, thereby eliminating the necessity of using acid or acid salts in printing pastes.
    Type: Grant
    Filed: February 10, 1976
    Date of Patent: February 14, 1978
    Assignee: Merck & Co., Inc.
    Inventors: Thomas A. Lindroth, Joseph S. Racciato