Abstract: The present invention relates to a process for moulding a polymeric object, the process comprising the steps of: (a) providing a substantially flat horizontally positioned layer of a material, the layer being a film or sheet; (b) providing a layer of a thermoplastic powder onto the layer provided under (a); (c) subjecting a pre-defined part of the thermoplastic powder to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of material; (d) terminating the exposure to irradiation; (e) providing a further layer of the thermoplastic powder onto the layer provided under (b); (f) subjecting a pre-defined part of the thermoplastic powder of the layer provided under (e) to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of the material fused under (c); (g) terminating the exposure to

Abstract: Provided is a tape including a composition having a copolyester including polymeric units derived from ethylene glycol and terephthalic acid or a diester thereof and >0.50 and <5.00 wt % of polymeric units with regard to the total weight of the polyester derived from an oligomeric dihydroxy compound having a number average molecular weight of >500 g/mol and <5000 g/mol. Such tape has an improved tensile-impact strength and a reduced proneness to splitting during weaving.

Abstract: A polymer composition for the production of shaped objects via selective sintering includes ?70.0 wt % of poly(ethylene terephthalate), wherein ?25.0 wt % and ?90.0 wt % of the poly(ethylene terephthalate has resulted from a selective sintering process as unsintered material. The polymer composition is a powder having a D10 of ?10 and ?40 ?m, a D50 of ?75 and ?100 ?m, and a D90 of ?160 and ?200 ?m. The polymer composition allows for the production of an article having a continuous use temperature of ?100° C., and results in a low change of molecular weight during exposure to selective sintering powder processing temperatures. Further, the polymer composition allows for a significant reduction of the waste material generated during selective sintering as the unsintered material does not have to be disposed of as waste but may be used again.

Abstract: Container assembly comprising a container and a closure, wherein the container is made of a crystallisable polymer material and comprises a neck portion with an outer cap surface and defines an outlet opening, the neck portion being configured for receiving the closure, wherein the closure includes a closure cap made of a crystallisable polymer material and has an inner cap surface, the closure cap being matched to the neck portion of the container to cover the outlet opening in a closed state, wherein the inner cap surface of the closure cap contacts the outer cap surface of the neck portion when the container assembly is closed, and wherein the material of the inner cap surface of the closure cap and/or of the outer cap surface of the neck portion is crystallised, to allow the container assembly to be opened after being closed for an elongated period of time.

Abstract: Hinged container cap, comprising a base portion, a hinge member and a lid, wherein the base portion is made of a crystallisable polymer and includes a base circumferential wall and a base containment wall having an base outlet aperture and has an external base surfaceexternal base surface 44, wherein the hinge member connects the base portion to the lid and allows a movement of the lid between an opened position, in which the base outlet aperture is open, and a closed position, in which the base outlet aperture is closed, wherein in the closed position, at least part of the external base surfaceexternal base surface 44 of the base portion forms an interface with the lid contact surfacelid contact surface 42 of the lid, wherein the base portion and/or of the lid wall is crystallized at at least the interface of the base portion and the lid in the closed position, to allow the lid to be opened after being closed for an elongated period.

Abstract: The present invention relates to a material composition comprising: (i) a polyester selected from polyethylene terephthalate, polybutylene terephthalate, or mixtures thereof; and (ii) ?1.0 and ?30.0 vol % of aluminium particles and to a shaped object comprising a material composition comprising such material composition. Such shaped object does demonstrate the desirable mechanical impact properties, and also demonstrates the desirable electromagnetic shielding, electrical conductivity, and thermal conductivity, given its high loading of aluminium.

Abstract: A polymer powder composition for production of shaped objects via selective laser sintering includes a thermoplastic material, which is a polyester, wherein the powder has specific particles size distribution. The thermoplastic material has: has a crystallization half time of >30 s and <12 min at a supercooling of 50° C. below the peak melt temperature; a glass transition temperature Tg of >50° C.; a peak melt temperature Tp,m of >200° C.; an extrapolated first heating run melt onset temperature T ei,m of >5° C. above the extrapolated first cooling run crystallization end temperature Tef,c; and a degree of crystallinity of >10.0%. The polymer composition has a continuous use temperature of >100° C., and a low change of molecular weight during exposure to selective laser sintering processing temperatures.

Abstract: The present invention relates to a polymer composition for the production of shaped objects via selective sintering wherein the polymer composition comprises a thermoplastic polyester selected from poly(ethylene terephthalate), polyethylene naphthalate), poly(ethylene furanoate), poly(trimethylene terephthalate), poly(ethylene succinate), or poly(hydroxyl butyrate), wherein ?10.0 wt % of the thermoplastic polyester has been subjected to a thermal treatment. Such polymer composition allows for the production of an article having a continuous use temperature of ?100° C., and results in a low change of molecular weight during exposure to selective sintering powder processing temperatures.

Abstract: The present invention relates to a tape comprising a composition comprising a copolyester comprising polymeric units derived from ethylene glycol and terephthalic acid or a diester thereof and >0.50 and <5.00 wt % of polymeric units with regard to the total weight of the polyester derived from an oligomeric dihydroxy compound having a number average molecular weight of >500 g/mol and <5000 g/mol. Such tape has an improved tensile-impact strength and a reduced proneness to splitting during weaving.

Abstract: The present invention relates to a polymer composition for production of shaped objects via selective laser sintering wherein the polymer composition comprises a thermoplastic material having: —a crystallisation half time of ?30 s and ?12 min at a supercooling of 50° C. below the peak melt temperature, wherein the crystallisation half time t1/2,c as determined via differential scanning calorimetry in accordance with ISO 11357-1 (2009); —a glass transition temperature Tg of ?50° C. as determined in accordance with ISO 11357-2 (2013); —a peak melt temperature Tp,m of ?200° C. as determined in accordance with ISO 11357-3 (2011), first heating nm; —an extrapolated first heating run melt onset temperature Tei,m of ?5° C. above the extrapolated first cooling run crystallisation end temperature Tef,c as determined in accordance with ISO 11357-1 (2009), first heating and cooling run; and —a degree of crystallinity of ?10.

Abstract: A composition containing a semicrystalline poly(2,6-dimethyl-1,4-phenylene ether) having a glass transition temperature of 205 to 225° C. can be compression molded under conditions that include a molding temperature substantially below the glass transition temperature. In some cases, the crystallinity of the poly(2,6-dimethyl-1,4-phenylene ether) increases substantially during molding, even though the molding temperature is below the glass transition temperature. Also described are articles formed by the molding method, articles in which the poly(2,6-dimethyl-1,4-phenylene ether) has a crystallinity of at least 5 weight percent, and a method of increasing the crystallinity of poly(2,6-dimethyl-1,4-phenylene ether).

Abstract: The present invention relates to Flexible Intermediate Bulk Containers (FIBC) having a body made of flexible fabric woven from polymeric tapes, and transport loops, wherein the body comprises side walls, bottom and top parts, characterised in that the fabric of at least one of the side walls and transport loops is woven from uniaxially-drawn PET tape having a density greater than 1.333 g/cm3.

Abstract: The present invention relates to a polyester sheet comprising a crystallized portion, said crystallized portion being in the form of one or more strip extending along at least a portion of the polyester sheet. The present invention further relates to a method for the manufacture of such sheet and use of such sheet.

Abstract: The present invention relates to a polyester sheet comprising a crystallised portion, said crystallised portion being in the form of one or more strip extending along at least a portion of the polyester sheet. The present invention further relates to a method for the manufacture of such sheet and use of such sheet.

Abstract: In an embodiment, an article comprises a crystalline polycarbonate, wherein the article has a polycarbonate crystallinity of greater than or equal to 10 wt % based on the total weight of the polycarbonate. In another embodiment, a method of making an article comprises adding a crystalline polycarbonate powder into a cavity of a compression mold; wherein the crystalline polycarbonate powder has a crystallinity of greater than or equal to 10 wt % based on the total weight of the crystalline polycarbonate powder; compressing the crystalline polycarbonate powder in the cavity at a compression temperature of greater than or equal to 10° C. less than the melting temperature of the crystalline polycarbonate powder (Tcomp?Tm?10° C.) and at a compression pressure of greater than or equal to 1 MPa; and removing the article from the cavity.

Abstract: The present invention relates to an integrated process for the production of polyester tape, comprising the steps of a) preparing feed polyester comprising a polymerisation reaction in one or more reactors in series and measuring the viscosity of the obtained feed polyester, b) feeding the feed polyester obtained from step a) and optional additives to a melt mixing device, mixing said feed polyester and said optional additives so as to form a molten polyester composition and measuring the viscosity of the obtained polyester composition, c) extruding the molten polyester composition through a film extrusion die thereby forming a molten film of said polyester composition, d) preparing a polyester tape from said molten polyester film, said preparing comprising trimming the edges of the film at a stage where said film is below its melting temperature, e) feeding at least a part of the trimmed edges obtained in step d) in-line to the melt mixing device in step b) wherein the amount of trimmed edges and optional fu

Abstract: The present invention relates to Flexible Intermediate Bulk Containers (FIBC) having a body made of flexible fabric woven from polymeric tapes, and transport loops, wherein the body comprises side walls, bottom and top parts, characterised in that the fabric of at least one of the side walls and transport loops is woven from uniaxially-drawn PET tape having a density greater than 1.333 g/cm3.

Abstract: The invention relates to a process for making an opaque and glossy film from a thermoplastic polyester composition, comprising the steps of a) extruding the polyester composition through a slot die, and quenching to form a substantially amorphous film having a crystallinity of at most 5%; b) rapidly heating the amorphous film to a drawing temperature in the range from Tg to (Tg+50)° C. while applying a draw ratio in the range of from ?initiation to ?max. in longitudinal direction, and a drawing rate of at least 1 m/min to form an oriented film showing stress-whitening, wherein ?initiation is the draw ratio at which a transfer from a transparent product to a stress-whitened product occurs and ?max. is the draw ratio at which failure of the stress whitened film occurs; and c) heat-setting the oriented stress-whitened film; the thermoplastic polyester composition substantially consisting of at least one crystallizable polyester derived from at least one aliphatic diol and at least one aromatic dicarboxylic acid.

Abstract: A process for making a shaped part from a polymer selected from polyethylene terephthalate (PET) and polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) by using a compacting tool comprising a die having a cavity and a punch having an outer surface. The process comprises the steps of: a) placing particles of the polymer in the cavity of the die heated to a compaction temperature, wherein the polymer has an intrinsic viscosity of at least 0.45 dL/g wherein the particles are a mixture of first particles with a particle size of 0.5-4000 ?m and second particles with a particle size of 1000-4000 ?m b) pressing the particles in the die cavity at a pressure of at least 3 MPa for 5-15 minutes while maintaining the temperature of the die at the compaction temperature and c) removing the shaped part from the die cavity. When the polymer is PET, the compaction temperature is 235-259° C. When the polymer is PEN, the compaction temperature is 250-275 ° C.

Abstract: In an embodiment, a method of processing a polymer comprises: mixing polymer and solid carbon dioxide; introducing the polymer and solid carbon dioxide mixture to a hopper of a vented extruder; plasticizing the mixture to form a polymer melt with dissolved carbon dioxide; venting carbon dioxide as a gas before the die exit; and extruding the polymer melt through a die. In an embodiment, a method of making an article comprises: introducing a polymer powder to an extruder; introducing solid carbon dioxide powder to the extruder at the hopper; plasticizing and extruding the polymer and solid carbon dioxide mixture; venting the solid carbon dioxide before the die exit; extruding the polymer melt through a die to form pellets; and injection molding the polymer pellets without solid carbon dioxide to form molded articles.