Sabic Innovative Plastics IP B.v.

General Electric Company

Sabic Global Technologies B.v.

Dibakar Dhara

Katherine Campbell Glasgow

Gautam Chatterjee

Gary Charles Davis

Vikram Kumar

Veeraraghavan Srinivasan

Roopali Rai

Patrick Joseph McCloskey

Brian Daniel Mullen

Adam Zerda

Sarah Elizabeth Genovese

Sriramakrishna Maruvada

Soumyadeb Ghosh

Srinivasan Rajagopalan

Theodorus L Hoeks

Anubhav Saxena

Mark Leatherman

Johannes Martinus Dina Goossens

William David Richards

Mark D Elkovitch

Sanjay Gurbasappa Charati

Nitin Mutha

Muthuvijayan Jegathesan

Gautam Madan

Purushotham Adoni

Abbas Alli Shaikh

Suresh K Rajaraman

Jan Pleun Lens

Edward Kung

Prakash Purushottam Wadgaonkar

Rein Mollerus Faber

Chiel Albertus Leenders

Vaidyanath Ramakrishnan

Joshua James Stone

Jos Arie Van Den Bogerd

Raja Krishnamurthy

Matthew Robert Pixton

Sandeep Tyagi

Parnasree Maiti

Yohana Perez De Diego

Bhimrao Dhondiba Sarwade

Jennifer Dean

Rajashekhar Shiddappa Totad

Vitthal Abaso Sawant

Amit Biswas

C Seetharaman

Abbas Alli G Shaikh

Anandrao S Patil

Antoinette Van Bennekom

Jennifer Kübel

Guatam Chatterjee

Theodorus Lambertus Hoeks

Patrick J Mccloskey

Abbas Alli G Shaiki

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 polycarbonate nanocomposite is disclosed. Also disclosed are polycarbonate nanocomposites prepared in accordance with this method, and thermoplastic compositions comprising the polycarbonate nanocomposites. Also disclosed are polycarbonate compositions comprising the nanomaterial.

Polycarbonate composition comprising nanomaterials

A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used.

Polysiloxane-polycarbonate compositions, method of manufacture, and articles formed therefrom

Polysiloxane-polycarbonate compositions, and related methods and articles

A polycarbonate-polysiloxane copolymer comprising structural units of the formula: wherein each R, R, and Ris independently the same or different monovalent Cshould this be C1-C13 like in the document? hydrocarbon group, G comprises a monovalent Cpoly(oxyalkyl) group, each Rand Rtaken together is independently the same or different divalent Chydrocarbon linking group wherein Ris a Chydrocarbon and Ris a Caliphatic group, a is 0 or greater, and b is one or greater; and structural units of the formula: wherein each R is independently the same or different Cdivalent hydrocarbon group, and at least 60% of the R groups comprise aromatic moieties.

Polycarbonate-polysiloxane copolymers, methods for the preparation thereof, and articles derived therefrom

Disclosed herein is a copolymer comprising isosorbide carbonate units and a polysiloxane block, wherein the copolymer comprises greater than or equal to 50 mol % isosorbide carbonate units.

Aliphatic diol-based polycarbonates, method of making, and articles formed therefrom

The above-described and other deficiencies of the art are met by a method of making a polycarbonate polymer comprising isosorbide carbonate units, comprising melt reacting a dihydroxy compound comprising an isosorbide of the general formula (2): 

Polycarbonate compositions having an aromatic polycarbonate resin with 90% or greater fluoroalkylene carbonate end-groups are formed from a partially fluorinated alcohol or a partially fluorinated polymeric alcohol, and a bisphenol and a carbonate source using melt or interfacial polymerization methods. Copolymers and blends with a variety of other bisphenols and other thermoplastics are also described. The polycarbonate compositions show high water contact angles, fluorine enrichment on the surface layer of molded articles, and good flame retardant properties and are useful in a variety of applications including medical, automotive, telecommunication and weatherable applications.

Polycarbonates with fluoroalkylene carbonate end groups

Disclosed herein is a polycarbonate copolymer comprising A) a structure derived from a dihydroxy alkylene oxide compound selected from the group consisting of formula (1a) and formula (1b):H-(E-X)&#x2014;OH&#x2003;&#x2003;(1a)H-(E-X-E)-OH&#x2003;&#x2003;(1b)wherein E and X are different and each and independently are selected from the group consisting of formula (2a) and formula (2b):&#x2014;(OCHCH)&#x2014;&#x2003;&#x2003;(2a)&#x2014;(OCHRCH)&#x2014;&#x2003;&#x2003;(2b)wherein R is a Calkyl group; l, m, and n are integers greater than or equal to 1; and wherein the weight average molecular weight of the total amount of the structures corresponding to formula (2b) in the copolymer is between 100 and 2,000 g/mol; and B) a structure derived from a dihydroxy aromatic compound, wherein the weight percentages are based on the total weight of the structures of A) and B).

Polycarbonate-poly(alkylene oxide) copolymer compositions and articles formed therefrom

Disclosed herein is a polycarbonate copolymer comprising A) a structure derived from a dihydroxy alkylene oxide compound selected from the group consisting of formula (1a) and formula (1b):H-(E-X)&#x2014;OH&#x2003;&#x2003;(1a)H-(E-X-E)-OH&#x2003;&#x2003;(1b)

A method comprising treating an article with steam, wherein the article comprises a composition comprising an amount of a polysiloxane-polycarbonate copolymer effective to provide thermal and hydrolytic stability to the article for at least 15 cycles, wherein each cycle comprises 20 minutes of contact with steam at 100&#xb0; C., at atmospheric pressure. The articles are of utility in a wide variety of applications such as food service and medical applications.

Methods of sterilizing polycarbonate articles and methods of manufacture

A composition comprising an aromatic carbonate polymer and an amount of at least one solid cyclic aliphatic alcohol stabilizing compound sufficient to inhibit yellowing of the composition upon exposure to a sterilizing radiation, wherein said stabilizing compound is selected from the group consisting of 2,2,4,4-tetramethylcyclobutane-1,3-diol, 1,4-cyclohexanediol, and wherein said stabilizing compound is present in said composition in an amount of at least about 0.2 parts by weight per 100 parts by weight of said aromatic carbonate polymers.

Radiation stable aromatic carbonate polymer compositions

A method for manufacturing a conductive composition comprises blending a polymer precursor with a single wall carbon nanotube composition; and polymerizing the polymer precursor to form an organic polymer. The method may be advantageously used for manufacturing automotive components, computer components, and other components where electrical conductivity properties are desirable.

Electrically conductive compositions and method of manufacture thereof

The disclosure provides high quality, low yellowness index copolycarbonates comprising structural units derived from at least one aliphatic diol, at least an aromatic dihydroxy compound and a diaryl carbonate. Also disclosed herein is a method of making such copolycarbonates in presence of one or more catalysts.

Aliphatic diol polycarbonates and their preparation

A composition includes a polycarbonate-polysiloxane block copolymer that has at least one polycarbonate block and at least one polysiloxane block, and a surface modifying agent that includes at least one polysiloxane segment. Increased levels of the surface modifying agent can be incorporated without compromising high transmittance and low haze. The compositions also exhibit improved hemocompatibility and are therefore useful for a variety of articles that may contact blood.

Transparent polycarbonate-polysiloxane copolymer blend, method for the preparation thereof, and article derived therefrom

Compositions exhibiting water resistant anti-static properties prepared from a thermoplastic polymer and a polymeric anti-static salt is disclosed.

Thermoplastic composition containing polymeric anti-static salt, method of making, and use thereof

Growing community of inventors

Bengaluru, India

Dibakar Dhara