Patents by Inventor Kam L. Lock

Kam L. Lock 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: 20210009845
    Abstract: A coating composition for a food and/or beverage container comprising a polyester material, wherein the polyester material comprises the reaction product of; (a) 1,2-propanediol, (b) terephthalic acid, and (c) a molecular weight increasing agent, characterized in that the polyester material has a number-average molecular weight (Mn) of at least 6,100 Da and a glass transition temperature (Tg) of at least 80° C.
    Type: Application
    Filed: July 28, 2020
    Publication date: January 14, 2021
    Inventors: Kam L. Lock, Richard Woods, Ibrahim Akseki, Beatrice Virginia Harrison
  • Patent number: 10442889
    Abstract: Coating compositions that include a binder formed from a polyester and a phosphorus acid are disclosed. The binder includes a polyester material formed as the reaction product of a polyacid, a polyol, and a phosphorous acid, wherein the polyester material has a number-average molecular weight (Mn) from about 1,000 Da to 25,000 Da and a polydispersity index (Mw/Mn) of from about 1 to 10. The polyester material is present in the binder composition in amounts of more than about 10 weight percent (wt %). The coating compositions are useful for coating food and/or beverage containers.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 15, 2019
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Kam L. Lock, Richard A. Woods
  • Publication number: 20170335060
    Abstract: Coating composition comprising a binder formed from polyester and a phosphorus acid A coating composition comprising a binder, the binder comprising a polyester material, wherein the polyester material comprises the reaction product of; (a) a polyacid, (b) a polyol and (c) a phosphorous acid, wherein the polyester material has a weight-average molecular weight (Mn) from about 1,000 Da to 25,000 Da and the polydispersity index (Mw/Mn) of the polyester material is from about to 10and characterised in that the polyester material is present in said binder composition in amounts of more than about 10 weight percent (wt %). The coating composition is useful for coating food and/or beverage containers.
    Type: Application
    Filed: November 27, 2015
    Publication date: November 23, 2017
    Inventors: Kam L. Lock, Richard A. Woods
  • Publication number: 20170029660
    Abstract: A coating composition for a food and/or beverage container comprising a polyester material, wherein the polyester material comprises the reaction product of a two step process, the two step process comprising: a first step comprising preparing a polyester prepolymer by contacting (a) 1,2-propanediol, (b) terephthalic acid, and a second step comprising contacting the polyester prepolymer with (c) a molecular weight increasing agent, characterised in that the polyester material has a number-average molecular weight (Mn) of at least 6,100 Da and a glass transition temperature (Tg) of at least 80° C.
    Type: Application
    Filed: November 27, 2014
    Publication date: February 2, 2017
    Inventors: Kam L. Lock, Richard Woods
  • Publication number: 20170022387
    Abstract: A coating composition for a food and/or beverage container comprising a polyester material, the polyester material comprising the reaction product of; (a) 1,2-propanediol, (b) terephthalic acid, and (c) a molecular weight increasing agent, characterised in that the polyester material has a number-average molecular weight (Mn) of at least 6,100 Da and a glass transition temperature (Tg) of at least 80° C., wherein the molecular weight increasing agent comprises a polyacid, a polyol or a combination thereof, the polyacid comprises a diacid of formula (I) wherein each R independently represents hydrogen or an alkyl, alkenyl, alkynyl, or aryl group; n=0 or 1; X represents a bridging group selected from: an alkylene group; an alkenylene group; an alkynylene group; an arylene group; the bridge between the —COOR groups is C1 or C2, and the hydroxyl groups of the polyol are connected by a C1 to C3 alkylene group.
    Type: Application
    Filed: November 27, 2014
    Publication date: January 26, 2017
    Inventors: Kam L. Lock, Richard Woods