Patents Assigned to Chemline Industries
  • Patent number: 4581256
    Abstract: The stability of alkaline electroless plating baths and the rate at which such baths are capable of depositing a metal film on a nonconductor substrate are both enhanced by the incorporation of a water soluble saccharide derivative into the bath composition. The saccharide derivatives include monosaccharides, oligosaccharides, polysaccharides, and saccharide reaction products such as gluconic and glucoheptonic acids and salts thereof.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: April 8, 1986
    Assignee: Chemline Industries
    Inventor: Walter R. Sommer
  • Patent number: 4306933
    Abstract: An improved tin/tin-lead stripping solution and method of preparing and using same, the solution including one or more compounds containing at least one amino (NH.sub.2) group, one carboxylic acid (--COOH) group and optionally a divalent sulfur group selected from the class of compounds known as amino acids or water/acid soluble derivatives thereof, or selected from the class of compounds known as aromatic carboxylic acids or water/acid soluble derivatives thereof, and incorporated in a basic fluoride-hydrogen peroxide tin-lead stripping solution.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: December 22, 1981
    Assignee: Chemline Industries
    Inventor: Bento Da Fonte, Jr.