Abstract: The present invention relates to thermoplastic polyamides (PA) comprising recurring units derived from a PFPE dicarboxylic acid (PFPA-DA) or a PFPE diamine (PFPE-NN) in a defined weight amount with respect to other units derived from the other monomers used in the course of polymerization. Polyamides (PA) are endowed with improved surface properties, chemical resistance and reduced brittleness and do not require the addiction of impact modifiers.

Abstract: The invention pertains to an improved method for synthesizing a branched poly(hydroxyl acid) polymer comprising effecting polycondensation reaction of a monomer mixture comprising: (i) at least one hydroxyl acid having only one hydroxyl group and only one carboxylic acid group [hydroxyacid (A)]; (ii) at least one polyol comprising at least three hydroxyl groups and being free from carboxylic acid group [polyol (H)]; (iii) at least one polyacid comprising at least three carboxylic acid groups and being free from hydroxyl groups [polyacid (O)]; and (iv) at least one carboxylic acid having one or two carboxylic acid groups and being free from hydroxyl group [acid (C)], wherein the amount of said acid (C) is such that the number of carboxylic acid groups thereof is comprised between 0.0001 to 0.010% with respect to the number of hydroxyl groups of hydroxyacid (A).

Abstract: The present invention relates to thermoplastic polyamides (PA) comprising recurring units derived from a PFPE dicarboxylic acid (PFPA-DA) or a PFPE diamine (PFPE-NN) in a defined weight amount with respect to other units derived from the other monomers used in the course of polymerization. Polyamides (PA) are endowed with improved surface properties, chemical resistance and reduced brittleness and do not require the addiction of impact modifiers.

Abstract: A polymer composition having improved processing properties, in particular improved crystallization behavior, comprising a semi-aromatic polyamide and a graphene material. The graphene material may be a nano-graphene platelet. The semi-aromatic polyamide may comprise recurring units obtainable by a polycondensation reaction between at least one aromatic diamine and at least one non-aromatic diacid or derivatives thereof and/or recurring units obtainable by a polycondensation reaction between at least one aromatic diacid or derivatives thereof and at least one non-aromatic diamine. The composition may further comprise a polyamide different than the semi-aromatic polyamide. The composition may further comprise a filler.

Abstract: Disclosed herein too is a method of manufacturing an electrically conducting polymeric composition comprising blending an organic polymer composition that comprises a thermoplastic organic polymer; an electrically conducting filler composition that comprises metal fibers; and an electrically insulating composition in an extruder; wherein the electrically insulating composition is fed into the extruder downstream of the location at which the organic polymer composition is fed into the extruder and wherein the electrically conducting filler composition is fed into the extruder at a location downstream of the location at which the electrically insulating composition is fed into the extruder.

Abstract: A mixture comprising at least one polymer and from 0.1 wt % to 1.5 wt %, based on the weight of the polymer, of at least one fumed silica, wherein the polymer comprises at least one semi-aromatic polyamide in an amount of more than 50 wt %, based on the weight of the polymer. The presence of the fumed silica in the semi-aromatic polyamide-based mixture allows notably for reducing the cycle time necessary for the manufacture of various shaped articles, such as mobile phone housings, by melt processing methods like injection molding.

Abstract: A polymer composition having improved processing properties, in particular improved crystallization behavior, comprising a semi-aromatic polyamide and a graphene material. The graphene material may be a nano-graphene platelet. The semi-aromatic polyamide may comprise recurring units obtainable by a polycondensation reaction between at least one aromatic diamine and at least one non-aromatic diacid or derivatives thereof and/or recurring units obtainable by a polycondensation reaction between at least one aromatic diacid or derivatives thereof and at least one non-aromatic diamine. The composition may further comprise a polyamide different than the semi-aromatic polyamide. The composition may further comprise a filler.

Abstract: Disclosed herein too is a method of manufacturing an electrically conducting polymeric composition comprising blending an organic polymer composition that comprises a thermoplastic organic polymer; an electrically conducting filler composition that comprises metal fibers; and an electrically insulating composition in an extruder; wherein the electrically insulating composition is fed into the extruder downstream of the location at which the organic polymer composition is fed into the extruder and wherein the electrically conducting filler composition is fed into the extruder at a location downstream of the location at which the electrically insulating composition is fed into the extruder.

Abstract: Disclosed herein is a flame-retardant polyamide composition, comprising about 60 to about 90 weight percent a polyamide composition; and a flame-retardant composition, comprising about 15 to about 30 wt % of a condensed triazine derivative; and about 5 to about 15 wt % of the reaction product of a triazine derivative with a cyanuric acid; and wherein the ratio of the weight of the condensed triazine derivative to the weight of the reaction product of a triazine derivative with a cyanuric acid is greater than 1.

Abstract: Disclosed herein is a flame-retardant polyamide composition comprising about 60 to about 90 weight percent a polyamide composition; and a flame-retardant composition, comprising (a) a compound based on a reaction product of a triazine derivative with cyanuric acid; (b) a compound based on reaction products of triazine derivatives with boric, phosphoric, or polyphosphoric acid; and (c) a polyhydric alcohol; wherein the ratio of the weight of the compounds based on reaction products of triazine derivatives with boric, phosphoric, or polyphosphoric acid to the weight of the polyhydric alcohol is less than or equal to about 5 while the ratio of the weight of the compounds based on the reaction product of a triazine derivative with cyanuric acid to the weight of the polyhydric alcohol is less than or equal to about 10.

Abstract: 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.

Abstract: Disclosed herein is composition comprising a polycarbonate composition; a fibrous reinforcing composition comprising glass fibers or a combination of glass fibers and carbon fibers; and a flame retardant composition comprising a phosphorus based flame retardant; and a synergist composition; wherein the composition has a flame retardancy of V-1 or better for a sample having a thickness of up to about 1.6 millimeters as measured in a UL-94 test and a heat distortion temperature of greater than or equal to about 75° C. when subjected to a deforming force of about 1.8 megapascals.

Abstract: 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.