Sabic Innovative Plastics IP B.v.

Sabic Global Technologies B.v.

Roopali Rai

Dibakar Dhara

Vaidyanath Ramakrishnan

Parnasree Maiti

Sandeep Tyagi

Veeraraghavan Srinivasan

Sriramakrishna Maruvada

Sonia Oberoi

Purushotham Adoni

Edward Kung

Shantaram Narayan Naik

Susanta Mitra

Andries Adriaan Volkers

Sriram Krishnamurthy

Shrikant Bhat

Raja Krishnamurthy

Theo Hoeks

Rajashekhar Shiddappa Totad

Vitthal Abaso Sawant

Stephen D Pask

Amit Biswas

Shweta Hegde

Abdulsattar Dawood

Sandeep Tvagi

Hariharan Ramalingham

Subramanyam Santhanam

Bg Umesh

Jaykisore Pal

Andries Andriaan Volkers

The present invention relates to a process for the production of polyacrylonitrile by polymerisation of a reaction mixture comprising acrylonitrile in a solution where the solvent is a eutectic system comprising a quaternary ammonium compound and a hydrogen donor. Such process allows for the production of a polyacrylonitrile having a desirably high molecular weight, whilst polymerisation time is reduced, and where the solvents are environmentally benign, biodegradable and may be reused in the polymerisation process.

Process for the production of polyacrylonitrile

Disclosed herein are methods and compositions of polycarbonate compositions having, among other characteristics, improved thermal dimensional stability, hydrolytic stability and high refractive index. The resulting polycarbonate copolymer composition, comprising a polycarbonate and a polysulfone, can be used in the manufacture of articles for optical applications. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Polycarbonate compositions having improved thermal dimensional stability and high refractive index

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

Polycarbonate nanocomposites comprising a polycarbonate matrix having non-oxidized metal nanoparticles dispersed therein are disclosed. The polycarbonate nanocomposite is produced by a process comprising forming a reaction mixture comprising a dihydroxy compound, an activated carbonate, a metal precursor, and a solvent; and in-situ polymerizing the reaction mixture to form a nanocomposite comprising a polycarbonate matrix and metal nanoparticles dispersed therein. The metal precursor comprises a metal selected from a specified group. The nanocomposites have improved mechanical, optical, electrical and/or magnetic properties. Also disclosed are articles formed from such polycarbonate nanocomposites.

Polycarbonate nanocomposites

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 thermoplastic composition comprising, based on the total weight of the thermoplastic composition, from 0.1 to 30 weight percent of an inorganic filler composition comprising an inorganic filler-polyorganosiloxane composite; up to 80 weight percent of a polycarbonate; and from 1 to 25 weight percent of an impact modifier. Methods of preparing the compositions and articles comprising the compositions are described.

Thermoplastic compositions, method of manufacture, and articles therefrom

Growing community of inventors

Bengaluru, India

Roopali Rai