Abstract: A component comprising a first part and a second part, wherein a third part is positioned between the first and second parts, wherein: (iv) said first part comprises a polymeric material (A) which comprises a repeat unit of formula (XI) wherein t1, and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2; (v) said second part comprises a polymeric material (B) which comprises a repeat unit of formula (XI) wherein t1, and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2; and (vi) said third part comprises a polymeric material (C) which comprises a polymer having a repeat unit of formula —O-Ph-O-Ph-CO-Ph-??I and a repeat unit of formula —O-Ph-Ph-O-Ph-CO-Ph-??II wherein Ph represents a phenylene moiety.

Abstract: A reinforcement sheet has a composite layer including fibres and a polymer A and a coating layer including polymer B, each polymer having at least 65 mol % of a repeat unit of formula: wherein for each polymer A and B, t1, and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2. A method of forming the reinforcement sheet is also disclosed, in addition to a method for forming an article comprising a laminate of the reinforcement sheets and the article comprising such a laminate. The repeat unit may be ether-ether-ketone.

Abstract: A component comprising a first part and a second part, wherein a third part is positioned between the first and second parts, wherein: (iv) said first part comprises a polymeric material (A) which comprises a repeat unit of formula (XI) wherein t1, and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2; (v) said second part comprises a polymeric material (B) which comprises a repeat unit of formula (XI) wherein t1, and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2; and (vi) said third part comprises a polymeric material (C) which comprises a polymer having a repeat unit of formula —O-Ph-O-Ph-CO-Ph-??I and a repeat unit of formula —O-Ph-Ph-O-Ph-CO-Ph-??II wherein Ph represents a phenylene moiety.

Abstract: A polymeric material includes phenyl moieties, ketone moieties and ether moieties in the polymeric backbone of said polymeric material, wherein the difference between the nucleation temperature (Tn) and the glass transition temperature (Tg) of said polymeric material is greater than 23° C.

Abstract: A polymeric material includes phenyl moieties, ketone moieties and ether moieties in the polymeric backbone of said polymeric material, wherein the difference between the nucleation temperature (Tn) and the glass transition temperature (Tg) of said polymeric material is greater than 23° C.

Abstract: A polymeric material includes phenyl moieties, ketone moieties and ether moieties in the polymeric backbone of said polymeric material, wherein the difference between the nucleation temperature (Tn) and the glass transition temperature (Tg) of said polymeric material is greater than 23° C.

Abstract: Polyaryletherketones and a method for producing the same are described wherein, for a given melt viscosity, the melt flow index is higher than expected. Such polymers may be used in situations where relative high flow is desirable.

Abstract: A gel profile article comprising a multi-filament yarn carrier carrying an elongate body of gel which encloses more than 50%, preferably more than 75%, more preferably substantially all, of the perimeter of the carrier as viewed in transverse cross-section, wherein the carrier is at least partly composed of synthetic polymeric material, preferably polyester filaments (e.g. polyethylene terephthalate) or spun yarns of a co-mingled blend of polyacrylonitrile staple fibres and polyamide staple fibres ("baby wool"), the proportion of polyamide preferably being at least 30%, more preferably 40-60%, by weight of the said spun yarn(s). The gel is preferably melt-coated, especially pressure-extruded, around the carrier at a gel temperature less than the softening temperature of at least a component of the carrier, and the selected class of carrier materials enhances the processability, cohesion, and appearance of the resulting profile.