Sabic Innovative Plastics IP B.v.

Shpp Global Technologies B.v.

Sabic Global Technologies B.v.

Hans Looij

Jan Henk Kamps

Hans-Peter Brack

Edward Kung

Dennis James Patrick Maria Willemse

Wilhelmus Johannes Daniel Steendam

Peter Kennedy Davis

Maarten Antoon Jan Campman

Bernardus Johannes Paulus Jansen

Lina Prada

Han Vermeulen

Theodorus L Hoeks

Jan Pleun Lens

Vaidyanath Ramakrishnan

Bruke Jofore

Ning Hao

Soumyadeb Ghosh

Bernd Jansen

Jorge A Garcia Agudo

Pieter Jan Antoon Janssen

Sonia Oberoi

Parnasree Maiti

Johannes Gerardus Petrus Goossens

Laurus Van Der Wekke

Dennis Willemse

Fernando Olmedo Fernandez

Bernard Jansen

Vaidyanath Ramakrishan

Bruke Danniel Jofore

Theodorus Lambertus Hoeks

Provided are extrusion dies having entrance, orientation, merging (), and exit () sections, which dies may be used to produce fibers having, e.g., oriented reinforcement materials (e.g., PTFE) dispersed within. The dies provide fibers having enhanced mechanical and processing properties. The orientation section comprises orientation channels () wherein a ratio of a cross-sectional area having of the channel inlet to a cross-sectional area of the channel outlet is between 2 and 45.

Die design for property enhancement

Methods of forming nanocomposites comprising a polymer and metal nanoparticles are disclosed. The nanoparticles are disposed within a matrix of the polymer. In particular, the nanoparticles are formed in situ in an extruder. The methods comprise providing a reaction mixture comprising a polymer, a metal precursor, and a solvent and extruding the reaction mixture to form a polymer nanocomposite. The methods overcome nanoparticle dispersion issues arising from melt blending processes.

Methods of preparing polymer nanocomposites

Disclosed herein is a polycarbonate comprising a terminal olefin group of the formula wherein Ris a C-Chydrocarbon that can be unsubstituted or substituted with a halogen, olefin, ether, ketone, or C-Cpolyoxyalkylene functionality in which the alkylene groups contain 2 to 6 carbon atoms, Rto Rare each independently a hydrogen or a C-Chydrocarbon that can be unsubstituted or substituted with a halogen, olefin, ether, ketone, or a C-Cpolyoxyalkylene functionality in which the alkylene groups contain 2 to 6 carbon atoms, and optionally wherein any two of Rto Rtogether form a monocyclic, bicyclic, or tricyclic ring system optionally substituted with a heteroatom in each ring.

Polycarbonate resins method of manufacture, and articles formed therefrom

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

Isosorbide-based polycarbonates, method of making, and articles formed therefrom

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 and polydispersity relative to an otherwise equivalent polycarbonate without alkyl substituents.

Branched polycarbonate resins and processes to prepare the same

The present invention provides methods of producing high molecular weight polymer. A method of forming polycarbonate includes the step of combining in a reaction mixture a diaryl carbonate, a transesterification catalyst, an aliphatic dihydroxy compound, and a diacid compound in a reactor system. The temperature and pressure of the reactor system are adjusted to a first reactor setpoints and the reaction mixture is monitored to detect initiation of the exothermic oligomerization reaction. The reactor setpoint are adjusted to second reactor setpoints after detection of initiation of the exothermic oligomerization reaction. The reactor system is maintained at the second reactor setpoints to allow the reaction mixture to react to form an oligomer mixture. The oligomer mixture is then introduced to a polymerization reactor system operating under melt polymerization conditions sufficient to polymerize the oligomer mixture to a Mw of at least 9,000 g/mol (PC) and to remove the phenolic byproduct from the oligomer mixture to form polycarbonate.

Method of producing high molecular weight polymer

A method of making a polycarbonate is described. The method comprises melt reacting an ester-substituted diaryl carbonate and a multifunctional compound of the formula: in the presence of catalyst to form an oligomer comprising less than 2,000 ppm of an ester-linked terminal group, and melt polymerizing the oligomer to form a polycarbonate. Use of specific reaction conditions produces a polycarbonate having an Mw of greater than or equal to 25,000 g/mol as determined by gel-permeation chromatography relative to polystyrene standards. Polycarbonates comprising units derived from the multifunctional compound, including homopolycarbonates, aliphatic copolycarbonates further comprising units derived from an aromatic dihydroxy compound, and aliphatic polycarbonate-polyesters, are also disclosed, as are a thermoplastic composition and an article including the disclosed polycarbonates.

Aliphatic polycarbonates, methods of making, and articles formed therefrom

Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a Caliphatic diacid, Caliphatic diol, or combination of these; and optionally, an additional unit different from the isosorbide and aliphatic units, wherein the isosorbide unit, aliphatic unit, and additional unit are each carbonate, or a combination of carbonate and ester units. Also disclosed are a thermoplastic composition and an article comprising the isosorbide-based polycarbonate.

Polycarbonate is prepared by reactive extrusion on a reactive extruder. A method incorporates the steps of introducing a polycarbonate oligomer, an activated carbonate residue, and a transesterification catalyst to the extruder through a feed section. The extruder has the feed section, a polycarbonate exit section, and a reaction section between the feed section and the polycarbonate exit section. The reaction section is made up of at least one conveying section, kneading sections, and venting sections. The configuration of the reaction section requires that at least one venting section be disposed between each pair of kneading sections, and that the kneading sections and venting sections are selected such that the number of venting sections minus the number of kneading sections is greater than or equal to one. The method further contains the step of extruding the reaction components at a temperature in a range between 100&#xb0; C. and 500&#xb0; C., wherein during the extrusion of the reaction components, activated carbonate residue is removed through the venting sections.

Polycarbonates containing low levels of methyl salicylate prepared by a melt polymerization in a reactive extruder

Polycarbonate is prepared by reactive extrusion on a reactive extruder. A method incorporates the steps of introducing a polycarbonate oligomer, an activated carbonate, and a transesterification catalyst to the extruder through a feed section. The extruder has a feed section, a polycarbonate exit section, and a reaction section between the feed section and the polycarbonate exit section. The reaction section has one or more devolatilization units, wherein each devolatilization unit incorporates an array of vent-conveying sections and conveying sections arranged in a configuration of: (C V C)(V), and/or (V C V)(C). (V) is a vent-conveying section, (C) is a conveying section, x is 1 or more, and n is 1 or 0. The extruder screw in the vent-conveying sections and the conveying sections in each devolatilization unit have conveying elements or conveying elements and mixing elements and no elements that create a melt seal in the devolatilization unit. The method further includes the step of extruding the reaction components at a temperature in a range between 100&#xb0; C. and 500&#xb0; C., wherein during the extrusion of the reaction components, activated carbonate residue is removed through the vent-conveying sections.

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