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).
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Patent number: 9988518Abstract: 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: GrantFiled: January 15, 2015Date of Patent: June 5, 2018Assignee: Momentive Performance Materials Inc.Inventors: Christine Lacroix, Philbert E. Ramdatt, Eric Pohl
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Publication number: 20150132518Abstract: 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: ApplicationFiled: January 15, 2015Publication date: May 14, 2015Inventors: Christine Lacroix, Philbert E. Ramdatt, Eric Pohl
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Patent number: 8962718Abstract: 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: GrantFiled: April 25, 2011Date of Patent: February 24, 2015Assignee: Momentive Performance Materials Inc.Inventors: Christine Lacroix, Philbert E. Ramdatt, Eric R. Pohl
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Patent number: 8378008Abstract: 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: GrantFiled: July 2, 2010Date of Patent: February 19, 2013Assignee: Momentive Performance Materials Inc.Inventor: Philbert E. Ramdatt
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Patent number: 8299181Abstract: A process for crosslinking polymers employs a silane crosslinker which, upon hydrolysis, produces a reduced quantity of volatile organic compound.Type: GrantFiled: February 20, 2009Date of Patent: October 30, 2012Assignee: Momentive Performance Materials, Inc.Inventors: Keith J. Weller, Philbert E. Ramdatt
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Patent number: 8063140Abstract: 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: GrantFiled: June 13, 2007Date of Patent: November 22, 2011Assignee: Momentive Performance Materials Inc.Inventors: Philbert E. Ramdatt, Roy M. Griswold, Eric R. Pohl
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Publication number: 20110259464Abstract: 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: ApplicationFiled: April 25, 2011Publication date: October 27, 2011Applicant: Momentive Performance Materials Inc.Inventors: Christine Lacroix, Philbert E. Ramdatt, Eric R. Pohl
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Publication number: 20110009545Abstract: 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: ApplicationFiled: July 2, 2010Publication date: January 13, 2011Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.Inventor: Philbert E. Ramdatt
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Publication number: 20080311419Abstract: 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: ApplicationFiled: June 13, 2007Publication date: December 18, 2008Inventors: Philbert E. Ramdatt, Roy M. Griswold, Eric R. Pohl
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Publication number: 20080038549Abstract: 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 selectType: ApplicationFiled: August 14, 2006Publication date: February 14, 2008Applicant: General Electric CompanyInventors: Roy M. Griswold, Francis J. McKeon, Timothy J. Fahrenkopf, Philbert E. Ramdatt
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Publication number: 20080039576Abstract: 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; aType: ApplicationFiled: August 14, 2006Publication date: February 14, 2008Applicant: General Electric CompanyInventors: Roy M. Griswold, Francis J. McKeon, Timothy J. Fahrenkopf, Philbert E. Ramdatt
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Publication number: 20070287773Abstract: 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: ApplicationFiled: June 13, 2006Publication date: December 13, 2007Inventor: Philbert E. Ramdatt
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Publication number: 20070287791Abstract: 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: ApplicationFiled: June 13, 2006Publication date: December 13, 2007Inventor: Philbert E. Ramdatt
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Patent number: 6894089Abstract: 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: GrantFiled: September 9, 2003Date of Patent: May 17, 2005Assignee: General Electric CompanyInventors: Henry L. Mei, Louis M. Panzer, Eric R. Pohl, Robert E. Christie, Philbert E. Ramdatt
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Publication number: 20040048952Abstract: 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: ApplicationFiled: September 9, 2003Publication date: March 11, 2004Inventors: Henry L. Mei, Louis M. Panzer, Eric R. Pohl, Robert E. Christie, Philbert E. Ramdatt
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Publication number: 20030027897Abstract: 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: ApplicationFiled: April 26, 2001Publication date: February 6, 2003Inventors: Henry L. Mei, Louis M. Panzer, Eric R. Pohl, Robert E. Christie, Philbert E. Ramdatt
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Patent number: 6455158Abstract: 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: GrantFiled: June 16, 2000Date of Patent: September 24, 2002Assignee: Crompton CorporationInventors: Henry L. Mei, Louis M. Panzer, Herbert E. Petty, Philbert E. Ramdatt, Robert E. Christie, Juan Alfonso
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Patent number: 5236514Abstract: 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: GrantFiled: October 29, 1991Date of Patent: August 17, 1993Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Pak S. Leung, Philbert E. Ramdatt, Roswell E. King, III
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Patent number: 4857583Abstract: 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: GrantFiled: July 2, 1987Date of Patent: August 15, 1989Assignee: Union Carbide CorporationInventors: Paul E. Austin, David D. Farris, James D. Reedy, Charles Blevins, Philbert E. Ramdatt