Patents by Inventor Donald C. Schall

Donald C. Schall 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: 8841380
    Abstract: The present invention provides high solids, two-component polyurethane compositions comprising, as one component, polyisocyanate compositions having one or more isocyanurate made from bis(isocyanatomethyl)-cyclohexane, as a second component, one or more high solids polyol, and in either component, one or more tertiary amine catalyst. Optionally, the compositions further comprise one or more zinc amine catalyst. The compositions provide coatings, which exhibit an excellent balance of pot life and dry to touch or tack free time, as well as early rain resistance and hardness, while enabling a lower volatile organic content (VOC) of the compositions for comparable performance.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: September 23, 2014
    Assignee: Rohm and Haas Company
    Inventors: Donald C. Schall, Jia Tang
  • Patent number: 8802771
    Abstract: The present invention provides two-component polyurethane compositions comprising, as one component, polyisocyanate compositions of the isocyanurate of one or more bis(isocyanatomethyl)cyclohexane or, preferably, a mixture of two or more of these, and of the isocyanurate of hexamethylene diisocyanate (HDI trimer), and, as the other component, a mix of a soft polyol having a hydroxyl functionality of from 2.5 to 5.0 and a molecular weight of from 500 to 3,000, and a hard polyol. Such compositions provide coatings, especially clear topcoats, which exhibit excellent scratch and mar and solvent resistance in addition to a good balance of hardness and flexibility without the need for increasing the volatile organic content (VOC) of the compositions. Also provided are compositions of a polyisocyanate compositions of the isocyanurate of one or more bis(isocyanatomethyl)cyclohexane with soft polyol which have lower VOCs.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: August 12, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: John N. Argyropoulos, Debkumar Bhattacharjee, Donald C. Schall, Allen Xu, Aaron Yang, Louie Luo
  • Patent number: 8304460
    Abstract: The present invention provides methods of making shapeable composites in the form of finely divided materials or articles and the materials and articles produced by the methods, the methods comprising forming mixtures by (i) treating an aqueous thermoplastic acrylic or vinyl polymer to increase the particle size thereof to a weight average particle size of 1 ?m or more, and, optionally, dewatering to form a crumb mixture; and (ii) combining a thermoplastic acrylic or vinyl polymer with one or more waste rubber vulcanizate having a sieve particle size ranging from 10 to 600 ?m in the amount of from 15 to 95 wt. %, based on the total weight of polymer and rubber to form a crumb slurry, such that (ii) can take place before, during, after (i) but before any dewatering, or after any dewatering; and (iii) thermoplastic processing the mixture. Thermoplastic processing can directly form articles, like sheets or films. The shapeable composites have excellent adhesion to other materials.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: November 6, 2012
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Donald C. Schall, Harry R. Heulings, IV, Kimberly B. Kosto, Joseph M. Rokowski
  • Publication number: 20120130016
    Abstract: The present invention provides two-component polyurethane compositions comprising, as one component, polyisocyanate compositions of the isocyanurate of one or more bis(isocyanatomethyl)cyclohexane or, preferably, a mixture of two or more of these, and of the isocyanurate of hexamethylene diisocyanate (HDI trimer), and, as the other component, a mix of a soft polyol having a hydroxyl functionality of from 2.5 to 5.0 and a molecular weight of from 500 to 3,000, and a hard polyol. Such compositions provide coatings, especially clear topcoats, which exhibit excellent scratch and mar and solvent resistance in addition to a good balance of hardness and flexibility without the need for increasing the volatile organic content (VOC) of the compositions. Also provided are compositions of a polyisocyanate compositions of the isocyanurate of one or more bis(isocyanatomethyl)cyclohexane with soft polyol which have lower VOCs.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 24, 2012
    Inventors: John N. ARGYROPOULOS, Debkumar BHATTACHARJEE, Donald C. SCHALL, Allen XU, Aaron YANG, Louie LUO
  • Publication number: 20120130002
    Abstract: The present invention provides high solids, two-component polyurethane compositions comprising, as one component, polyisocyanate compositions having one or more isocyanurate made from bis(isocyanatomethyl)-cyclohexane, as a second component, one or more high solids polyol, and in either component, one or more tertiary amine catalyst. Optionally, the compositions further comprise one or more zinc amine catalyst. The compositions provide coatings, which exhibit an excellent balance of pot life and dry to touch or tack free time, as well as early rain resistance and hardness, while enabling a lower volatile organic content (VOC) of the compositions for comparable performance.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 24, 2012
    Inventors: Donald C. Schall, Jia Tang
  • Publication number: 20110136936
    Abstract: The present invention provides fast dry binder compositions comprising one or more anionically stabilized emulsion polymer having a weight average particle size of from 100 to 165 nm, one or more polyamine, one or more volatile base and one or more filler, extender and/or pigment in a composition having a % PVC of from 63 to 80. The invention provides surprisingly stable fast dry binder compositions for such a high extender or filler loading and the compositions dry far faster than binders made with waterborne polymers having a larger particle size. The invention provides high performance traffic paints at a reduced cost in use and coated substrates, such as traffic markings or exterior insulation finishes (EIFS).
    Type: Application
    Filed: November 30, 2010
    Publication date: June 9, 2011
    Inventors: Ann R. HERMES, Kimberly B. Kosto, Mary Anne R. Matthews, Donald C. Schall
  • Publication number: 20100009152
    Abstract: The present invention provides methods of making shapeable composites in the form of finely divided materials or articles and the materials and articles produced by the methods, the methods comprising forming mixtures by (i) treating an aqueous thermoplastic acrylic or vinyl polymer to increase the particle size thereof to a weight average particle size of 1 ?m or more, and, optionally, dewatering to form a crumb mixture; and (ii) combining a thermoplastic acrylic or vinyl polymer with one or more waste rubber vulcanizate having a sieve particle size ranging from 10 to 600 ?m in the amount of from 15 to 95 wt. %, based on the total weight of polymer and rubber to form a crumb slurry, such that (ii) can take place before, during, after (i) but before any dewatering, or after any dewatering; and (iii) thermoplastic processing the mixture. Thermoplastic processing can directly form articles, like sheets or films. The shapeable composites have excellent adhesion to other materials.
    Type: Application
    Filed: June 17, 2009
    Publication date: January 14, 2010
    Inventors: Willie Lau, Harry R. Heulings, IV, Kimberly B. Kosto, Joseph M. Rokowski, Donald C. Schall
  • Patent number: 7645815
    Abstract: The present invention provides fast-drying aqueous compositions that lower the cost of making roadway markings without impairing the quality or appearance of the markings made therewith. The aqueous compositions comprise one or more hollow core binder having an average particle size of from 200 to 500 nanometers (nm), preferably from 300 to 470 nm, and made of a first polymer having a glass transition temperature (Tg) of 50° C. or more and containing one or more void, the first polymer being substantially encapsulated by one or more second polymer having a Tg of ?30° C. or more, preferably, ?20° C. or more. Fast-drying aqueous compositions may be one component or two component compositions.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: January 12, 2010
    Assignee: Rohm and Haas Company
    Inventors: Ann R. Hermes, Francis J. Landy, Mary Anne R. Matthews, Donald C. Schall
  • Publication number: 20080171810
    Abstract: The present invention provides fast-drying aqueous compositions that lower the cost of making roadway markings without impairing the quality or appearance of the markings made therewith. The aqueous compositions comprise one or more hollow core binder having an average particle size of from 200 to 500 nanometers (nm), preferably from 300 to 470 nm, and made of a first polymer having a glass transition temperature (Tg) of 50° C. or more and containing one or more void, the first polymer being substantially encapsulated by one or more second polymer having a Tg of ?30° C. or more, preferably, ?20° C. or more. Fast-drying aqueous compositions may be one component or two component compositions.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 17, 2008
    Inventors: Mary Anne R. Matthews, Donald C. Schall, Francis J. Landy, Ann R. Hermes
  • Patent number: 7235595
    Abstract: An aqueous traffic paint including hard-soft polymer particles, polyfunctional amine, and volatile base is provided. The hard-soft polymer particles, which contain soft polymer and hard polymer, have a hydrophobicity characterized by a Hansch parameter of at least 3. Also provided is a method of producing a traffic marking on a road surface using the aqueous paint. The aqueous traffic paint is suitable for application to road surfaces, including oily road surfaces, and may be applied at temperatures below 15° C.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: June 26, 2007
    Assignee: Rohm and Haas Company
    Inventors: Ann R. Hermes, Mary Anne R. Matthews, Donald C. Schall, Jeffrey J. Sobczak