Abstract: The present disclosure relates to a process of preparing an elastomer composite in an extruder, said process comprising: (a) providing at least one solid particulate ingredient in a first mixing zone to obtain a first mix; (b) providing at least one elastomer in a second mixing zone to obtain a second mix; (c) contacting the first mix and the second mix to obtain a third mix; and (d) processing the third mix to obtain an elastomer composite, wherein the first mixing zone and the second mixing zone has a temperature in the range of 30° C.-50° C., the processing of the third mix is carried out at a temperature in the range of 100° C.-250° C. The present disclosure also relates to a formulation comprising an elastomer composite produced by the process as disclosed herein.

Abstract: A vulcanization mix includes: a) at least one elastomer; b) at least one cross-linking agent; and c) at least one polyol-based accelerator. A vulcanized elastomer can be obtained from the vulcanization mix. A process of preparation of the vulcanization mix and the vulcanized elastomer is also provided.

Abstract: A process for preparing hydrogels is disclosed. Said process comprises passing reactants comprising a monomer, an initiator and a cross-linker through a co-rotating twin screw extruder, the co-rotating twin screw extruder being operated at a screw speed of at least 200 rpm and comprising an inlet zone, an outlet zone, and in between the inlet zone and the outlet zone at least one mixing zone, at least one conveying zone and at least one back-mixing zone, wherein the back-mixing zone comprises of restricting elements which restrict the reactants from moving forward in the co-rotating twin screw extruder until a forward force sufficient to overcome the restriction is achieved, such that the co-rotating twin screw extruder provides sufficient shear energy and residence time to the reactants to (co)polymerize and produce hydrogel having a water uptake greater than 100 g/g.

Abstract: A process for preparing a blend having a styrene resin and a polyphenylene ether in a co-rotating twin screw processor is described. A blend having a styrene resin and a polyphenylene ether is also described. A co-rotating screw processor for preparing a blend having a styrene resin and a polyphenylene ether comprising two processing zones is also described.