Patents by Inventor Thomas F. Lim

Thomas F. Lim 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).

  • Publication number: 20220212483
    Abstract: Examples of the present disclosure relate generally to a printing apparatus and, more particularly, to apparatuses, systems, and methods for printing utilizing laser print head and reactive media.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 7, 2022
    Inventors: Sze Ping CHING, Suraini Binte SAPTU, Phek Thong LEE, Cheng Khoon NG, Deenadayalan DURAIRAJU, Florante Sumalinog GO, David Pratama DJAYAPUTRA, Eng Hing LIM, Rajan NARAYANASWAMI, Yong Xing SHU, Sebastien Michel Marie Joseph D'ARMANCOURT, Harry Nicholas Makabali LANSANGAN, Thomas Axel Jonas CELINDER, WenWei ZHANG, Brian H. Nelson, Timothy Allen GOOD, Norman DAVIES, David CHANEY, Teck Siong SOH, Heng Yew LIM, Kar Boon Oung, Zhiwei WANG, Fong Yin LAU, Hao ZHENG, Henry G. ARDIFF, Giri Babu GUNTIPALLI, Praveen ALLAKA, Zyn Ming LAI, Jang Wei CHAO, Jose F. SANCHEZ GUTIERREZ, Chin Chean LIM
  • Patent number: 7674871
    Abstract: The present invention concerns ?-silyl terminated polydiorganosiloxanes, a method of making the ?-silyl terminated polydiorganosiloxanes, and sealant compositions containing said compounds and a method of using such sealant compositions.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: March 9, 2010
    Assignee: Henkel AG & Co. KGaA
    Inventors: Matthias Koch, Thomas Bachon, Andreas Ferencz, Thomas F. Lim
  • Patent number: 7307134
    Abstract: This invention relates to silylated polymers having mixed alkoxy groups on the silyl portion thereof, methods of their preparation, and compositions and reaction products formed therefrom. These alkoxysilylated polymers can be crosslinked when exposed to atmospheric moisture to become useful elastomers, sealants or adhesives. The presence of different alkoxy groups on the silicon atoms can control or otherwise moderate the cure speeds of these silylated polymers.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: December 11, 2007
    Assignees: Henkel Corporation, Henkel KGaA
    Inventors: Thomas F. Lim, Thomas Bachon, Bernd Beuer, Johann Klein
  • Publication number: 20040116639
    Abstract: This invention relates to silylated polymers having mixed alkoxy groups on the silyl portion thereof, methods of their preparation, and compositions and reaction products formed therefrom. These alkoxysilylated polymers can be crosslinked when expoesed to atmospheric moisture to become useful elastomers, sealants or adhesives. The presence of different alkoxy groups on the silicon atoms can control or otherwise moderate the cure speeds of these silylated polymers.
    Type: Application
    Filed: August 25, 2003
    Publication date: June 17, 2004
    Inventors: Thomas F. Lim, Thomas Bachon, Bernd Beuer, Johann Klein
  • Patent number: 4962176
    Abstract: Chlorine or bromine-containing polysilanes of the general formula (R.sub.2 Si)(RSi)(R'Si) are disclosed. In these polysilanes there are also bonded to the silicon atoms other silicon atoms and chlorine or bromine atoms, R is an alkyl radical containing 1 to 4 carbon atoms, and R' is selected from the group consisting of alkyl radicals of at least six carbon atoms, phenyl radicals, and radicals of the formula A.sub.y X.sub.(3-y) Si(CH.sub.2).sub.z -- wherein each A is independently selected from a hydrogen atom or alkyl radicals containing 1 to 4 carbon atoms, y is an integer equal to 0 to 3, X is chlorine or bromine, and z is an integer greater than or equal to 1. These preceramic polymers can be pyrolyzed at elevated temperatures under an inert atmosphere to yield ceramic materials or articles. These polysilanes may also be converted into other preceramic polymers which can be pyrolyzed to ceramic materials or articles.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: October 9, 1990
    Assignee: Dow Corning Corporation
    Inventors: Duane R. Bujalski, Gary E. DeGrow, Thomas F. Lim
  • Patent number: 4962175
    Abstract: Alkylpoly(polysilyl)azanes are prepared by the reaction of chlorine-containing polysilane preceramic polymers and various disilazanes. The alkylpoly(polysily)azanes may be converted to ceramic materials by pyrolysis at elevated temperatures.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: October 9, 1990
    Assignee: Dow Corning Corporation
    Inventors: Duane R. Bujalski, Gary E. LeGrow, Thomas F. Lim
  • Patent number: 4889899
    Abstract: A method is described to prepare preceramic polysilanes which contain at least one weight percent vinyl. To ensure the survival of the vinyl groups in the polysilane the reaction and process conditions must be carefully controlled. The vinyl-containing polysilanes can be formed into fibers, cured either thermally or by UV irradiation, and then pyrolyzed to form ceramic fibers. Thermal curing and pyrolysis can be combined into a single process step.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: December 26, 1989
    Assignee: Dow Corning Corporation
    Inventors: Duane R. Bujalski, Gary E. Le Grow, Jonathan Lipowitz, Thomas F. Lim
  • Patent number: 4824918
    Abstract: Vinyl-containing polysilanes are described wherein the vinyl groups are attached to endblocking sites of intermediate reactivity. These vinyl-containing polysilanes are prepared by reacting a halogen-endblocked polysilane with, first, a non-vinyl-containing Grignard reagent or a non-vinyl organolithium compound whereby the most reactive halogen endblocking groups are replaced; then, second, reacting the resulting polysilane with vinyl Grignard reagent or vinyllithium whereby the halogen endblocking groups of intermediate reactivity are replaced; and, third, reacting the resulting polysilane with a non-vinyl-containing Grignard reagent or a non-vinyl organolithium compound whereby the least reactive halogen endblocking groups are replaced. The vinyl-containing polysilanes can be coverted to ceramic materials, including ceramic fibers, by pyrolysis.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: April 25, 1989
    Assignee: Dow Corning Corporation
    Inventors: Duane R. Bujalski, Gary E. LeGrow, Jonathan Lipowitz, Thomas F. Lim
  • Patent number: 4609486
    Abstract: The shelf life of an aqueous, anionic silicone emulsion, which contains an organic tin compound and which forms an elastomer upon removal of the water, is improved by the addition of an additive. The additive is selected from the group consisting of alkyl mercaptan, 8-quinolinol, thioglycolic acid, and salts of thioglycolic acid. Elastomers produced by removing the water from these emulsions, once shelf aged, have more consistent physical properties than do elastomers produced from similar emulsions not containing the additives.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: September 2, 1986
    Assignee: Dow Corning Corporation
    Inventors: Alan L. Freiberg, Daniel Graiver, Thomas F. Lim, Antony P. Wright
  • Patent number: 4574149
    Abstract: A novel class of resinous organosiloxane polymers includes triorganosiloxy, fluorinated organosiloxy, SiO.sub.4/2 and silicon-bonded hydroxyl groups. The fluorine-containing hydrocarbon radicals are bonded to silicon by means of a sequence of at least two methylene group. Preferred organosiloxane polymers stabilize the cellular structure of polydimethylsiloxane foams during curing.
    Type: Grant
    Filed: October 26, 1984
    Date of Patent: March 4, 1986
    Assignee: Dow Corning Corporation
    Inventors: Chi-Long Lee, Thomas F. Lim, Antony P. Wright
  • Patent number: 4549003
    Abstract: A novel class of organosiloxane copolymers are prepared by the reaction of (1) a silane containing from 1 to 3 hydrolyzable groups and a fluorinated hydrocarbon radical that is bonded to silicon through a --CH.sub.2 CH.sub.2 -- radical, and (2) a resinous organosiloxane copolymer containing trimethylsiloxy units, SiO.sub.4/2 units and silicon-bonded hydroxyl groups.
    Type: Grant
    Filed: October 26, 1984
    Date of Patent: October 22, 1985
    Assignee: Dow Corning Corporation
    Inventors: Thomas F. Lim, Antony P. Wright