Patents by Inventor Martin R. Greaves

Martin R. Greaves 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: 11566200
    Abstract: The present disclosure provides A lubricant composition comprises an antioxidant; and an esterified polyalkylene glycol: R1[O(R2O)n(R3O)m(C?O)R4]p, wherein R1 is a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1,2-propylene oxide; R3O is an oxybutylene moiety derived from butylene oxide, wherein R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with 1 to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4, wherein the antioxidant is present in an amount by weight of at least 0.5% to 20% based upon the weight of the antioxidant and the esterified polyalkylene glycol and the antioxidant is soluble in the esterified polyalkylene glycol in an amount of at least 0.5% by weight.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: January 31, 2023
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Yaokun Han, Martin R. Greaves, Yong Zhao, Cheng Shen, Tao Wang, Jieying Chen
  • Patent number: 11505762
    Abstract: A composition comprising water, a glycol, and a polyalkylene glycol which has a biodegradability of at least 60% as determined using OECD 301F wherein the composition has a kinematic viscosity of at least 25 mm2/sec at 40° C. is useful as a rheology modifier, particularly in subsea applications. In some instances, the composition comprises 10 to 65 weight % water, 20 to 60 weight % of a glycol selected from ethylene glycol, diethylene glycol, triethylene glycol and tetra ethylene glycol, 10 to 40 weight % of a polyalkylene glycol, and 0 to 10% of additives based on total weight of the composition wherein the polyalkylene glycol has a—molecular weight of no more than 4000 g/mol and is characterized in that it is an oxyethylene/oxypropylene block copolymer having a weight percent of oxyethylene of at least 20% based on total weight of the copolymer.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: November 22, 2022
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventor: Martin R. Greaves
  • Patent number: 11479734
    Abstract: Embodiments of the present disclosure directed towards synthetic lubricant compositions. In various embodiments, the present disclosure provides a synthetic lubricant compositions including an aromatic amine antioxidant comprising 0.25 to 5 weight percent of a total weight of the synthetic lubricant composition, dithiocarbamate antioxidant comprising 0.25 to 5 weight percent of the total weight of the synthetic lubricant composition, and a polyalkylene glycol PAG comprising 99.25 to 85 weight percent of the total weight of the synthetic lubricant composition, where the synthetic lubricant composition has a total acidic number (TAN) increase of 2 milligrams of potassium hydroxide per gram of the synthetic lubricant composition over 27 days or greater as measured in accordance with modified ASTM D-664, and where the synthetic lubricant composition does not include any of a Group I, II, III, IV base oil.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: October 25, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Evelyn A. Zaugg-Hoozemans
  • Publication number: 20220306961
    Abstract: Embodiments of the present disclosure are directed processes to produce a low-color esterified oil soluble polyalkylene glycol, the process comprising forming a reaction mixture including a low viscosity oil soluble polyalkylene glycol and an excess amount of valeric acid, where the reaction mixture is formed in the presence of a catalytic amount of ortho-phosphoric acid catalyst to yield an organic phase including the low-color esterified oil soluble polyalkylene glycol.
    Type: Application
    Filed: August 8, 2019
    Publication date: September 29, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Edward Daugs, Martin R. Greaves, Yaokun Han
  • Patent number: 11396638
    Abstract: The present disclosure provides for a lubricant formulation and a method of forming the lubricant formulation for use in an internal combustion engine. The lubricant formulation includes a base oil and an esterified oil-soluble polyalkylene glycol (E-OSP) of Formula (I): R1 [O(R2O)n(R3O)m(C?O)R4]p wherein R1 is a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1, 2-propylene oxide; R3O is an oxybutylene moiety derived from butylene oxide, wherein R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with 1 to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: July 26, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Yaokun Han, Yong Zhao
  • Patent number: 11390741
    Abstract: Alkoxylated hydrophobes that include a poly(alkylene oxide) chain of at least 5 oxyalkylene units having a terminal secondary hydroxyl group or a terminal C1-8 hydrocarbyl group are effective internal mold release agents for epoxy resin moldings. The alkoxylated hydrophobe, when mixed with an epoxy resin, forms a mixture that is highly stable when heated to 80 to 100° C. and held at that temperature for a period of as much as 22 days.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: July 19, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Aikaterini Tsoutsoura, Timothy A. Morley, Rainer Koeniger, Rene P. Geiger, Luis G. Madrigal, Luca Lotti, Nebojsa Jelic, Zeljko Sikman, Evelyn A. Zaugg-Hoozemans, Martin R. Greaves
  • Publication number: 20220127542
    Abstract: The present disclosure provides A lubricant composition comprises an antioxidant; and an esterified polyalkylene glycol: R1[O(R2O)n(R3O)m(C?O)R4]p, wherein R1 is a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1,2-propylene oxide; R3O is an oxybutylene moiety derived from butylene oxide, wherein R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with 1 to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4, wherein the antioxidant is present in an amount by weight of at least 0.5% to 20% based upon the weight of the antioxidant and the esterified polyalkylene glycol and the antioxidant is soluble in the esterified polyalkylene glycol in an amount of at least 0.5% by weight.
    Type: Application
    Filed: March 5, 2019
    Publication date: April 28, 2022
    Inventors: Yaokun Han, Martin R. Greaves, Yong Zhao, Cheng Shen, Tao Wang, Jieying Chen
  • Publication number: 20220119728
    Abstract: A lubricant composition that comprises a hydrocarbon base oil, a polar viscosity improver; and an esterified polyalkylene glycol: R1[O(R2O)n(R3O)m(C?O)R4]p, wherein R1 is a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1, 2-propylene oxide; R3O is an oxybutylene moiety derived from butylene oxide, wherein R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with 1 to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4. The lubricant composition may have a viscosity index of at least 150, a kinematic viscosity at 100° C. from 2 to 5 centistokes and a kinematic viscosity at ?20° C. of at most 600 centistokes.
    Type: Application
    Filed: March 5, 2019
    Publication date: April 21, 2022
    Inventors: Yaokun Han, Martin R. Greaves, Yong Zhao, Cheng Shen, Tao Wang, Jieying Chen
  • Patent number: 11279897
    Abstract: Embodiments of the present disclosure are directed towards esterified oil soluble polyalkylene glycols of Formula (I): R1[O(R2O)n(R3O)m(C?O)R4]p, where R1 is a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1, 2-propylene oxide; R3O is an oxybutylene moiety derived from butylene oxide, where R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: March 22, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Yaokun Han, Cheng Shen, Martin R. Greaves, Yong Zhao
  • Publication number: 20220002536
    Abstract: Alkoxylated hydrophobes that include a poly(alkylene oxide) chain of at least 5 oxyalkylene units having a terminal secondary hydroxyl group or a terminal C1?8 hydrocarbyl group are effective internal mold release agents for epoxy resin moldings. The alkoxylated hydrophobe, when mixed with an epoxy resin, forms a mixture that is highly stable when heated to 80 to 100° C. and held at that temperature for a period of as much as 22 days.
    Type: Application
    Filed: August 3, 2017
    Publication date: January 6, 2022
    Inventors: Aikaterini Tsoutsoura, Timothy A. Morley, Rainer Koeniger, Rene P. Geiger, Luis G. Madrigal, Luca Lotti, Nebojsa Jelic, Zeljko Sikman, Evelyn A. Zaugg-Hoozemans, Martin R. Greaves
  • Patent number: 11193083
    Abstract: An industrial base oil formulation comprising a base oil, preferably a hydrocarbon base oil, having a kinematic viscosity of more than 100 centiStokes, preferably 150 centiStokes or more, at 40 degrees Celsius and an AC-OSP where the AC-OSP has the structure of Formula I: R1[O(R2O)n(R3O)mR4]p (I) where R1 is an alkyl having from one to thirty carbons, R2 and R3 are independently selected from alkyl groups having three or four carbons and can be in block form or randomly combined, R4 is an alkyl having from one to 18 carbon atoms, n and m are independently numbers ranging from zero to 20 provided that n+m is greater than zero and p is a number within a range of one to three; wherein the industrial base oil formulation has a kinematic viscosity of greater than 100 centiStokes, preferably 150 centiStokes or more, at 40 degrees Celsius is useful in a lubricant for mechanical devices.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: December 7, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Nadjet Khelidj, Martin R. Greaves, Evelyn A. Zaugg-Hoozemans
  • Publication number: 20210371768
    Abstract: A composition comprising water, a glycol, and a polyalkylene glycol which has a biodegradability of at least 60% as determined using OECD 301F wherein the composition has a kinematic viscosity of at least 25 mm2/sec at 40° C. is useful as a rheology modifier, particularly in subsea applications. In some instances, the composition comprises 10 to 65 weight % water, 20 to 60 weight % of a glycol selected from ethylene glycol, diethylene glycol, triethylene glycol and tetra ethylene glycol, 10 to 40 weight % of a polyalkylene glycol, and 0 to 10% of additives based on total weight of the composition wherein the polyalkylene glycol has a—molecular weight of no more than 4000 g/mol and is characterized in that it is an oxyethylene/oxypropylene block copolymer having a weight percent of oxyethylene of at least 20% based on total weight of the copolymer.
    Type: Application
    Filed: October 3, 2019
    Publication date: December 2, 2021
    Inventor: Martin R. GREAVES
  • Patent number: 11053450
    Abstract: An automotive lubricant base oil formulation contains a base oil, preferably a hydrocarbon base oil, having a kinematic viscosity of 100 centiStokes or less at 40 degrees Celsius and an ailcyl capped oil soluble polymer where the alkyl capped oil soluble polymer has the structure of Formula 0): where R1 is an alkyl having from one to thirty carbons, R2 and R3 are independently selected from alkyl groups having three or four carbons and can be in block form or randomly combined, R4 is an alkyl having from one to 18 carbon atoms, n and m are independently numbers ranging from zero to 20 provided that n+m is greater than zero and p is a number within a range of one to three and a kinematic viscosity of 100 centiStokes or less at 40 degrees Celsius is useful in a lubricant for mechanical devices.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 6, 2021
    Inventors: Nadjet Khelidj, Martin R. Greaves
  • Patent number: 10844312
    Abstract: An antioxidant package composition including a combination of: (i) at least one hindered phenolic antioxidant, and (ii) at least one polyether sulphide; a lubricant composition including: (a) the antioxidant package composition and (b) at least one base oil; a process for preparing the antioxidant package composition; and a process for preparing the lubricant composition.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: November 24, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Evelyn A. Zaugg-Hoozemans
  • Publication number: 20200332217
    Abstract: The present disclosure provides for a lubricant formulation and a method of forming the lubricant formulation for use in an internal combustion engine. The lubricant formulation includes a base oil and an esterified oil-soluble polyalkylene glycol (E-OSP) of Formula (I): R1 [O(R2O)n(R3O)m(C?O)R4]p wherein R1 is a linear alkyi having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1, 2-propylene oxide; R3O is an oxvbutvlene moiety derived from butylene oxide, wherein R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4.
    Type: Application
    Filed: December 25, 2017
    Publication date: October 22, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Yaokun Han, Yong Zhao
  • Publication number: 20200318024
    Abstract: Embodiments of the present disclosure are directed towards esterified oil soluble polyalkylene glycols of Formula (I): R1[O(R2O)n(R3O)n(C?O)R4]p, where R1 is a linear alkyl having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1, 2-propylene oxide; R3O is an oxybutylene moiety derived from butylene oxide, where R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with to 18 carbon atoms, N a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4.
    Type: Application
    Filed: December 25, 2017
    Publication date: October 8, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Yaokun Han, Cheng Shen, Martin R. Greaves, Yong Zhao
  • Patent number: 10752860
    Abstract: An antioxidant package composition including a combination of: (i) at least one aromatic amine, and (ii) at least one polyether sulphide; a lubricant composition including: (a) the above antioxidant package and (b) at least one base oil; a process for preparing the antioxidant package; and a process for preparing the lubricant composition.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: August 25, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Evelyn A. Zaugg-Hoozemans
  • Patent number: 10640727
    Abstract: A lubricant contains alcohol initiated propylene oxide homopolymer, an oil soluble polyalkylene glycol other than the alcohol initiated propylene oxide homopolymer, and a calcium salt of dinonylnaphthalene sulphonate where the lubricant is further characterized by containing less than ten weight-percent of polyol esters based on total lubricant weight is useful as a lubricant for compressors.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: May 5, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Jiangbo Ma
  • Patent number: 10633607
    Abstract: A fluid contains a base oil and an antioxidant, the base oil consisting of sulfur-containing polyalkylene glycol where greater than 80 weight-percent of the fluid is a sulfur-containing polyalkylene glycol and less than one weight-percent of the fluid is water, with weight percent based on total fluid weight an wherein the sulfur-containing polyalkylene glycol is free of oxygen bound directly to sulfur.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: April 28, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Ronald Van Voorst, Marinus Meertens
  • Patent number: 10577557
    Abstract: A fluid contains a base oil consisting of an alcohol-initiated polyalkylene glycol where polyalkylene glycol component is selected from a homopolymer of 1,2-butylene oxide and copolymer of 1,2-butylene oxide and propylene oxide; a glycerol-initiated unsaturated ester that is free of tertiary carbon atoms and quaternary carbon atoms; and an antioxidant.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: March 3, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Martin R. Greaves, Evelyn A. Zaugg-Hoozemans