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Sandeep Tyagi Sandeep Tyagi
Amit Biswas, Dibakar Dhara, Raja Krishnamurthy, Edward Kung, Parnasree Maiti, Roopali Rai, Vaidyanath Ramakrishnan, Vitthal Abaso Sawant, Rajashekhar Shiddappa Totad, Sandeep Tyagi: Polycarbonate composition comprising nanomaterials. Sabic Global Technologies, Cantor Colburn, October 21, 2014: US08865833

A method of preparing a polycarbonate nanocomposite comprising forming a reactant mixture comprising a nanomaterial, a solvent, a dihydroxy compound and an activated carbonate; and polymerizing the dihydroxy compound and the activated carbonate in the presence of the solvent to form the polycarbonat ...


2
Sandeep Tyagi
Amit Biswas, Dibakar Dhara, Raja Krishnamurthy, Edward Kung, Parnasree Maiti, Roopali Rai, Vitthal Abaso Sawant, Rajashekhar Shiddappa Totad, Sandeep Tyagi: Method of making polycarbonate nanocomposites. Sabic Lexan, SABIC Innovative Plastics IP Legal, April 3, 2008: US20080081865-A1

A method of preparing a polycarbonate nanocomposite comprising forming a reactant mixture comprising a nanomaterial, a solvent, a dihydroxy compound and an activated carbonate; and polymerizing the dihydroxy compound and the activated carbonate in the presence of the solvent to form the polycarbonat ...


3
Sandeep Tyagi
Amit Biswas, Dibakar Dhara, Raja Krishnamurthy, Edward Kung, Parnasree Maiti, Roopali Rai, Vaidyanath Ramakrishnan, Vitthal Abaso Sawant, Rajashekhar Shiddappa Totad, Sandeep Tyagi: Polycarbonate composition comprising nanomaterials. Sabic Innovative Plastics Ip, Cantor Colburn, November 4, 2010: US20100280176-A1

A method of preparing a polycarbonate nanocomposite comprising forming a reactant mixture comprising a nanomaterial, a solvent, a dihydroxy compound and an activated carbonate; and polymerizing the dihydroxy compound and the activated carbonate in the presence of the solvent to form the polycarbonat ...


4
Sandeep Tyagi
Amit Biswas, Dibakar Dbara, Raja Krishnamurthy, Edward Kung, Parnasree Maiti, Roopali Raj, Vaidyanath Ramakrishnan, Vitthal Abaso Sawant, Rajashekhar Shiddappa Totad, Sandeep Tyagi: Polycarbonate composition comprising nanomaterials. Sabic Lexan, SABIC Innovative Plastics IP Legal, July 10, 2008: US20080167414-A1

A method of preparing a polycarbonate nanocomposite comprising forming a reactant mixture comprising a nanomaterial, a solvent, a dihydroxy compound and an activated carbonate; and polymerizing the dihydroxy compound and the activated carbonate in the presence of the solvent to form the polycarbonat ...


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Bernardus Johannes Paulus Jansen, Jan Henk Kamps, Edward Kung, Hans Looij, Lina Prada, Wilhelmus Johannes Daniel Steendam: Isosorbide-based polycarbonates, method of making, and articles formed therefrom. SABIC Innovative Plastics IP, Cantor Colburn, August 31, 2010: US07786246 (24 worldwide citation)

Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C14-44 aliphatic diacid, C14-44 aliphatic diol, or combination of these; and a polysiloxane block.


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Theodorus Lambertus Hoeks, Jan Henk Kamps, Dennis Karlik, Edward Kung, Michael Teruki Takemori: Transparent articles prepared from thermoplastic compositions having low birefringence. Sabic Innovative Plastics IP, Cantor Colburn, November 22, 2011: US08064140 (5 worldwide citation)

An optical grade article comprises a thermoplastic composition comprising a poly(aliphatic ester)-polycarbonate copolymer comprising 10 to 25 wt % of a soft block ester unit derived from a C20-44 aliphatic dicarboxylic acid or derivative thereof, 34 to 77 wt % of a carbonate unit derived from 2-hydr ...


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Bernardus Johannes Paulus Jansen, Jan Henk Kamps, Edward Kung, Hans Looij, Lina Prada, Wilhelmus Johannes Daniel Steendam: Isosorbide-based polycarbonates, method of making, and articles formed therefrom. SABIC Innovative Plastics IP, February 23, 2010: US07666972 (5 worldwide citation)

Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C14-44 aliphatic diacid, C14-44 aliphatic diol, or combination of these; and optionally, an additional unit different from the isosorbide and aliphatic units, wherein the is ...


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Bernd Jansen, Jan Henk Kamps, Edward Kung, Patrick Joseph McCloskey, Paul Michael Smigelski Jr: Polycarbonates and method of preparing same. Sabic Innovative Plastics IP, Marina Larson & Associates, January 27, 2009: US07482423 (4 worldwide citation)

Polycarbonates incorporating terminal carbonate groups derived from ester-substituted activated carbonates, for example terminal methyl salicyl carbonate (TMSC) derived from the use of BMSC as the activated carbonate in a transesterification process, have unfavorable properties with respect to color ...


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Hans Peter Brack, Bernd Jansen, Jan Henk Kamps, Edward Kung, Jan Pleun Lens, Hans Looij, Han Vermeulen: Branched polycarbonate resins and processes to prepare the same. Sabic Innovative Plastics IP, Larson & Anderson, July 20, 2010: US07759456 (4 worldwide citation)

A method of increasing the branching and polydispersity of a polycarbonate includes the steps of: (a) including in the polycarbonate at least one species of an alkyl substituted monomer, and (b) treating the polycarbonate at an elevated temperature and for a sufficient time to increase the branching ...


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Shreyas Chakravarti, Gabrie Hoogland, Vishvajit Chandrakant Juikar, Ganesh Kannan, Edward Kung, Nina P Vaze, Karin I van de Wetering: Polycarbonate-polyester blends, methods of manufacture, and methods of use. Sabic Innovative Plastics IP, Cantor Colburn, February 2, 2010: US07655737 (3 worldwide citation)

A composition comprising a blend of: from 1 to 99 weight percent of a polycarbonate comprising from 10 to 90 mole percent of one or more arylate carbonate units of the formula wherein each Rf is independently a C1-12 hydrocarbon, halogen, or halogen-substituted C1-12 hydrocarbon, and u is 0 to 4; an ...