Patents by Inventor Philbert E. Ramdatt

Philbert E. Ramdatt 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: 9988518
    Abstract: The present invention relates to chlorine resistant crosslinkable silane-containing polyolefin compositions and stabilizer masterbatch compositions, their preparation, and articles made therefrom. These crosslinkable silane-containing compositions contain a mixture of antioxidants, light absorbers and stabilizers that provide resistance to the levels of chlorine used in potable water and to light, thereby extending the useful life of said articles made therefrom, such as potable water pipes and valves, bottles, tanks, and the like.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: June 5, 2018
    Assignee: Momentive Performance Materials Inc.
    Inventors: Christine Lacroix, Philbert E. Ramdatt, Eric Pohl
  • Publication number: 20150132518
    Abstract: The present invention relates to chlorine resistant crosslinkable silane-containing polyolefin compositions and stabilizer masterbatch compositions, their preparation, and articles made therefrom. These crosslinkable silane-containing compositions contain a mixture of antioxidants, light absorbers and stabilizers that provide resistance to the levels of chlorine used in potable water and to light, thereby extending the useful life of said articles made therefrom, such as potable water pipes and valves, bottles, tanks, and the like.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 14, 2015
    Inventors: Christine Lacroix, Philbert E. Ramdatt, Eric Pohl
  • Patent number: 8962718
    Abstract: The present invention relates to chlorine resistant crosslinkable silane-containing polyolefin compositions and stabilizer masterbatch compositions, their preparation, and articles made therefrom. These crosslinkable silane-containing compositions contain a mixture of antioxidants, light absorbers and stabilizers that provide resistance to the levels of chlorine used in potable water and to light, thereby extending the useful life of said articles made therefrom, such as potable water pipes and valves, bottles, tanks, and the like.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: February 24, 2015
    Assignee: Momentive Performance Materials Inc.
    Inventors: Christine Lacroix, Philbert E. Ramdatt, Eric R. Pohl
  • Patent number: 8378008
    Abstract: The invention relates to surface-modified non-halogenated mineral filler compositions comprising a particulate mineral filler core comprising hydroxide groups bound to divalent or trivalent metal ions, said particulate mineral filler core having on its surface (i) one or more short-chain organosilano groups each having one to three silicon-bound short-chain hydrocarbon groups having, independently, one to three carbon atoms, and (ii) one or more long-chain organosilano groups having one to three silicon-bound straight-chained or branched, saturated or unsaturated, long-chain hydrocarbon groups containing, independently, eight to twelve carbon atoms, wherein the long-chain organosilano groups are present in an amount of up to about fifty-five mole percent of combined molar amount of long-chain and short-chain organosilano groups.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: February 19, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventor: Philbert E. Ramdatt
  • Patent number: 8299181
    Abstract: A process for crosslinking polymers employs a silane crosslinker which, upon hydrolysis, produces a reduced quantity of volatile organic compound.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: October 30, 2012
    Assignee: Momentive Performance Materials, Inc.
    Inventors: Keith J. Weller, Philbert E. Ramdatt
  • Patent number: 8063140
    Abstract: A moisture-curable, graft-modified resin composition includes at least one thermoplastic polymer (i) and at least one silyl group containing polymer (ii) possessing at least one hydrolyzable silyl group that is bonded to the polymer through a linking group containing at least one heteroatom selected from the group consisting of oxygen and nitrogen, each of polymers (i) and (ii) having grafted thereto at least one same or different silane (iii) which, prior to being grafted, possesses at least one reactive carbon-carbon unsaturated bond.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: November 22, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Philbert E. Ramdatt, Roy M. Griswold, Eric R. Pohl
  • Publication number: 20110259464
    Abstract: The present invention relates to chlorine resistant crosslinkable silane-containing polyolefin compositions and stabilizer masterbatch compositions, their preparation, and articles made therefrom. These crosslinkable silane-containing compositions contain a mixture of antioxidants, light absorbers and stabilizers that provide resistance to the levels of chlorine used in potable water and to light, thereby extending the useful life of said articles made therefrom, such as potable water pipes and valves, bottles, tanks, and the like.
    Type: Application
    Filed: April 25, 2011
    Publication date: October 27, 2011
    Applicant: Momentive Performance Materials Inc.
    Inventors: Christine Lacroix, Philbert E. Ramdatt, Eric R. Pohl
  • Publication number: 20110009545
    Abstract: The invention relates to surface-modified non-halogenated mineral filler compositions comprising a particulate mineral filler core comprising hydroxide groups bound to divalent or trivalent metal ions, said particulate mineral filler core having on its surface (i) one or more short-chain organosilano groups each having one to three silicon-bound short-chain hydrocarbon groups having, independently, one to three carbon atoms, and (ii) one or more long-chain organosilano groups having one to three silicon-bound straight-chained or branched, saturated or unsaturated, long-chain hydrocarbon groups containing, independently, eight to twelve carbon atoms, wherein the long-chain organosilano groups are present in an amount of up to about fifty-five mole percent of combined molar amount of long-chain and short-chain organosilano groups.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 13, 2011
    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventor: Philbert E. Ramdatt
  • Publication number: 20080311419
    Abstract: A moisture-curable, graft-modified resin composition includes at least one thermoplastic polymer (i) and at least one silyl group containing polymer (ii) possessing at least one hydrolyzable silyl group that is bonded to the polymer through a linking group containing at least one heteroatom selected from the group consisting of oxygen and nitrogen, each of polymers (i) and (ii) having grafted thereto at least one same or different silane (iii) which, prior to being grafted, possesses at least one reactive carbon-carbon unsaturated bond.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 18, 2008
    Inventors: Philbert E. Ramdatt, Roy M. Griswold, Eric R. Pohl
  • Publication number: 20080038549
    Abstract: A composite structure comprising at least one transparent or translucent panel member having at least two surfaces to said panel member wherein at least one of said surfaces has a adhesive and/or sealant comprising a hot melt vulcanizate composition disposed on at least a portion thereof; wherein said hot melt vulcanizate composition is made by the process comprising: In one embodiment herein there is provided a hot melt vulcanizate composition made by the process comprising: a) producing a reaction product (i) from (1) at least one first resin selected from the group consisting of thermoplastic polymer and elastomeric polymer, (2) at least one unsaturated carboxylic acid anhydride, (3) at least one alkylamine possessing two or more amine functionalities, and optionally (4) at least one free-radical generating catalyst, and wherein said reaction product (i) optionally further comprises, at least one first additive; and, optionally, b) blending said reaction product (i) with at least one second resin select
    Type: Application
    Filed: August 14, 2006
    Publication date: February 14, 2008
    Applicant: General Electric Company
    Inventors: Roy M. Griswold, Francis J. McKeon, Timothy J. Fahrenkopf, Philbert E. Ramdatt
  • Publication number: 20080039576
    Abstract: In one embodiment herein there is provided a hot melt vulcanizate composition made by the process comprising: a) producing a reaction product (i) from (1) at least one first resin selected from the group consisting of thermoplastic polymer and elastomeric polymer, (2) at least one unsaturated carboxylic acid anhydride, (3) at least one alkylamine possessing two or more amine functionalities, and optionally (4) at least one free-radical generating catalyst, and wherein said reaction product (i) optionally further comprises, at least one first additive; and, optionally, b) blending said reaction product (i) with at least one second resin selected from the group consisting of thermoplastic polymer and elastomeric polymer, provided that at least one of second resin is different from at least one of first resin and, optionally, at least one second additive; c) curing said reaction product (i), wherein reaction product (i) has been blended as in (b) above, or not, to produce a hot melt vulcanizate composition; a
    Type: Application
    Filed: August 14, 2006
    Publication date: February 14, 2008
    Applicant: General Electric Company
    Inventors: Roy M. Griswold, Francis J. McKeon, Timothy J. Fahrenkopf, Philbert E. Ramdatt
  • Publication number: 20070287773
    Abstract: The invention relates to surface-modified non-halogenated mineral filler compositions comprising a particulate mineral filler core comprising hydroxide groups bound to divalent or trivalent metal ions, said particulate mineral filler core having on its surface (i) one or more short-chain organosilano groups each having one to three silicon-bound short-chain hydrocarbon groups having, independently, one to three carbon atoms, and (ii) one or more long-chain organosilano groups having one to three silicon-bound straight-chained or branched, saturated or unsaturated, long-chain hydrocarbon groups containing, independently, eight to twelve carbon atoms, wherein the long-chain organosilano groups are present in an amount of up to about fifty-five mole percent of combined molar amount of long-chain and short-chain organosilano groups.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 13, 2007
    Inventor: Philbert E. Ramdatt
  • Publication number: 20070287791
    Abstract: The invention relates to polymer compositions comprising an olefin-derived polymer component and a surface-modified non-halogenated mineral filler composition comprising a particulate mineral filler core containing hydroxide groups bound to divalent or trivalent metal ions, said particulate mineral filler core having on its surface (i) one or more short-chain organosilano groups each having one to three silicon-bound short-chain hydrocarbon groups having, independently, one to three carbon atoms, and (ii) one or more long-chain organosilano groups having one to three silicon-bound straight-chained or branched, saturated or unsaturated, long-chain hydrocarbon groups containing, independently, eight to twelve carbon atoms, wherein the long-chain organosilano groups are present in an amount of up to about fifty-five mole percent of combined molar amount of long-chain and short-chain organosilano groups.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 13, 2007
    Inventor: Philbert E. Ramdatt
  • Patent number: 6894089
    Abstract: The present invention is directed to a composition comprising a white pigment or extended white pigment surface treated with a silane having at least one functional group capable of reacting with acids and anhydrides, at least one polymeric material and a compatibilizer. Once treated, the pigment has improved processability and dispersibility in polymeric materials. Silanizing the pigment also enhances the brightness (increase whiteness and reduce yellowness) of the pigment.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 17, 2005
    Assignee: General Electric Company
    Inventors: Henry L. Mei, Louis M. Panzer, Eric R. Pohl, Robert E. Christie, Philbert E. Ramdatt
  • Publication number: 20040048952
    Abstract: The present invention is directed to a composition comprising a white pigment or extended white pigment surface treated with a silane having at least one functional group capable of reacting with acids and anhydrides, at least one polymeric material and a compatibilizer. Once treated, the pigment has improved processability and dispersibility in polymeric materials. Silanizing the pigment also enhances the brightness (increase whiteness and reduce yellowness) of the pigment.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 11, 2004
    Inventors: Henry L. Mei, Louis M. Panzer, Eric R. Pohl, Robert E. Christie, Philbert E. Ramdatt
  • Publication number: 20030027897
    Abstract: The present invention is directed to a composition comprising a white pigment or extended white pigment surface treated with a silane having at least one functional group capable of reacting with acids and anhydrides, at least one polymeric material and a compatibilizer. Once treated, the pigment has improved processability and dispersibility in polymeric materials. Silanizing the pigment also enhances the brightness (increase whiteness and reduce yellowness) of the pigment.
    Type: Application
    Filed: April 26, 2001
    Publication date: February 6, 2003
    Inventors: Henry L. Mei, Louis M. Panzer, Eric R. Pohl, Robert E. Christie, Philbert E. Ramdatt
  • Patent number: 6455158
    Abstract: The present invention relates to the silanization or surface treatment of minerals with alkylsilanes and alkylsilane copolymers. More specifically, the present invention relates to alkylsilane copolymers useful for surface treating pigments or fillers. The alkylsilane copolymers comprise at least two different monomers. The copolymers find particular utility for the surface treatment of white pigments, such as titanium dioxide, for improving the dispersibility and processibility of the pigments when compounded with a polymeric material, in particular, when compounded with polyolefins.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: September 24, 2002
    Assignee: Crompton Corporation
    Inventors: Henry L. Mei, Louis M. Panzer, Herbert E. Petty, Philbert E. Ramdatt, Robert E. Christie, Juan Alfonso
  • Patent number: 5236514
    Abstract: A purging composition is provided which is useful for cleaning thermoplastic processing equipment. The composition is composed of the following components in the following concentrations:______________________________________ Component Percent by Weight ______________________________________ Adsorbate 0.05 to 5 Matrix resin 49.5 to 99.5 Abrasive (optional) 0 to 50 ______________________________________The composition can also contain a carrier resin having a melting point different from that of the matrix resin.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: August 17, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Pak S. Leung, Philbert E. Ramdatt, Roswell E. King, III
  • Patent number: 4857583
    Abstract: An improved process is provided for the preparation of siloxane-oxyalkylene block copolymer surfactant compositions which utilized a hydrosilation reaction with high boiling point polar polyols as the reaction solvent. The reaction solvent need not be removed from the block copolymer, particularly when the block copolymer is used as a surfactant for polyurethane foam formulations. Dipropylene glycol is the preferred polar solvent and when used in the preparation of the surfactants need not be removed when the surfactants are employed in the preparation of urethane foams.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: August 15, 1989
    Assignee: Union Carbide Corporation
    Inventors: Paul E. Austin, David D. Farris, James D. Reedy, Charles Blevins, Philbert E. Ramdatt