Patents by Inventor Surachai Wimolkiatisak

Surachai Wimolkiatisak 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).

  • Vinyl halide polymer color concentrate
    Patent number: 5843524
    Abstract: The present invention provides a new and improved method of producing a dustless vinyl halide polymer color concentrate that does not require the formation of a hot melt or the use of wax. The color concentrate comprises a multitude of fine particles which each comprise a vinyl halide polymer resin core and a colorant material shell. The method includes the steps of providing a vinyl halide polymer, providing a colorant material, providing a compatibilizer having a solubility parameter of from about 7 to about 12 (cal/ml).sup.1/2, and mixing the vinyl halide polymer, compatibilizer and colorant material together to yield the dustless concentrate in the form of a vinyl halide resin core surrounded by a shell of the compatibilzer and the colorant material.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: December 1, 1998
    Assignee: Ferro Corporation
    Inventors: Surachai Wimolkiatisak, Dennis L. Hammond, Anthony S. Scheibelhoffer, Allen W. Carlson, Mir L. Ali
  • Abrasive and purge compositions
    Patent number: 5443768
    Abstract: This invention relates to an abrasive composition comprising (a) a major amount of at least one abrasive powder, (b) at least one resin selected from the group consisting of a polymer of a diene, a rosin material, a coumarone-indene resin, and a mixture of two or more thereof, and (c) at least one copolymer of an olefin and an acrylate or a methacrylate. The abrasive composition may additionally include (d) a surface active agent. The abrasive composition may be added to a polymer or resin to form purge compositions. The invention also relates to methods of cleaning processing equipment and preparing the abrasive compositions and purge composition.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: August 22, 1995
    Assignee: The Ferro Corporation
    Inventors: Anthony S. Scheibelhoffer, Dianna B. Dusek, Dennis L. Hammond, Surachai Wimolkiatisak, William R. Myers, Robert J. Opalko, Richard L. Abrams
  • Multilayer thermoformable structure
    Patent number: 5385781
    Abstract: This invention relates to a multilayer thermoformable structure comprising (A) at least one cap layer and (B) at least one core layer, and polymer compositions for making the same. The multilayer structures and polymer compositions of the invention are useful in preparing thermoformed articles and are particularly useful in preparing liners for refrigerators and freezers. The multilayer structures and the polymer composition have good thermoformability and chemical resistance. The multilayer structures and the polymer composition have good surface properties including a glossy finish. Further these materials are compatible with new blowing agents, such as the hydrochlorofluorocarbons and hydrofluorocarbon blowing agents, which are more environmentally friendly. The layers of the multilayer structure do not require a glue layer.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: January 31, 1995
    Assignee: Ferro Corporation
    Inventors: Deenadayalu Chundury, Anthony S. Scheibelhoffer, Berdine L. Leonard, Ronald E. Thompson, Randall S. McAllister, Surachai Wimolkiatisak, Anthony F. Dean, Jr.
  • Composites and polymer compositions for making the same
    Patent number: 5374680
    Abstract: A polymer blend composition consisting essentially of:(i) at least about 55% by weight polystyrene,(ii) from about 1% to about 45% by weight of a selectively hydrogenated block copolymer of conjugated dienes and vinyl aromatic monomers which has been grafted with a carboxylic reagent, wherein the block copolymer contains up to about 50% by weight bound vinyl aromatic monomer, and(iii) from about 0.3% to 45% by weight of at least one block polymer of a vinyl aromatic monomer and conjugated diene, wherein the block polymer contains greater than about 60% by weight bound vinyl aromatic monomer.The polymer composition is useful in preparing multilayer thermoformable structures and articles comprising (A) at least one cap layer and (B) at least one core layer, such as liners for refrigerators and freezers. The multilayer structures and polymer composition have good thermoformability, chemical resistance and surface properties including a glossy finish.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: December 20, 1994
    Assignee: Ferro Corporation
    Inventors: Deenadayalu Chundury, Anthony S. Scheibelhoffer, Berdine L. Leonard, Ronald E. Thompson, Randall S. McAllister, Surachai Wimolkiatisak, Anthony F. Dean Jr.
  • Multilayer thermoformable structure
    Patent number: 5264280
    Abstract: This invention relates to a multilayer thermoformable structure comprising (A) at least one cap layer and (B) at least one core layer, and polymer compositions for making the same. The multilayer structures and polymer compositions of the invention are useful in preparing thermoformed articles and are particularly useful in preparing liners for refrigerators and freezers. The multilayer structures and the polymer composition have good thermoformability and chemical resistance. The multilayer structures and the polymer composition have good surface properties including a glossy finish. Further these materials are compatible with new blowing agents, such as the hydrochlorofluorocarbons and hydrofluorocarbon blowing agents, which are more environmentally friendly. The layers of the multilayer structure do not require a glue layer.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: November 23, 1993
    Assignee: Ferro Corporation
    Inventors: Deenadayalu Chundury, Anthony S. Scheibelhoffer, Berdine L. Leonard, Ronald E. Thompson, Randall S. McAllister, Surachai Wimolkiatisak, Anthony F. Dean, Jr.