Abstract: A method of forming a three-dimensional object comprises the steps of forming a layer of a particulate composition, selectively depositing a liquid composition onto the layer of the particulate composition in accordance with computer data corresponding to the shape of at least a portion of a three-dimensional object, and repeating the steps a plurality of times to form a three-dimensional object. The particulate composition comprises a plurality of first particles that comprise a resin component comprising a first resin, the first resin comprising a first resin polymerizable group. Either or both of the particulate composition and the liquid composition comprise an initiator capable of initiating polymerization of at least the first resin. At least the first resin undergoes melting and polymerization in a plurality of the locations where the liquid composition has been selectively deposited.

Abstract: The invention is in the field of additive manufacturing. According to a first aspect of the invention, there is provided an additive manufacturing process for producing a printed article, comprising the step of sintering a powder composition comprising a thermoplastic elastomer, wherein the powder composition has a melting onset temperature Tm,onset and a melting peak temperature Tm,peak, which are measured according to ISO 11357-1/3 (2009), wherein Tm,peak minus Tm,onset is 30° C. or less; and wherein a test article printed from the powder composition has a rebound resilience of 50% or more, measured according to DIN 53512.

Abstract: A method of forming a three-dimensional object comprises the steps of forming a layer of a particulate composition, selectively depositing a liquid composition onto the layer of the particulate composition in accordance with computer data corresponding to the shape of at least a portion of a three-dimensional object, and repeating the steps a plurality of times to form a three-dimensional object. The particulate composition comprises a plurality of first particles that comprise a resin component comprising a first resin, the first resin comprising a first resin polymerizable group. Either or both of the particulate composition and the liquid composition comprise an initiator capable of initiating polymerization of at least the first resin. At least the first resin undergoes melting and polymerization in a plurality of the locations where the liquid composition has been selectively deposited.

Abstract: A method of forming a three-dimensional object comprises the steps of forming a layer of a particulate composition, selectively depositing a liquid composition onto the layer of the particulate composition in accordance with computer data corresponding to the shape of at least a portion of a three-dimensional object, and repeating the steps a plurality of times to form a three-dimensional object. The particulate composition comprises a plurality of first particles that comprise a resin component comprising a first resin, the first resin comprising a first resin polymerizable group. Either or both of the particulate composition and the liquid composition comprise an initiator capable of initiating polymerization of at least the first resin. At least the first resin undergoes melting and polymerization in a plurality of the locations where the liquid composition has been selectively deposited.

Abstract: A method of forming a three-dimensional object comprises the steps of forming a layer of a particulate composition, selectively depositing a liquid composition onto the layer of the particulate composition in accordance with computer data corresponding to the shape of at least a portion of a three-dimensional object, initiating polymerization, and repeating the steps a plurality of times to form a three-dimensional object. The particulate composition comprises a plurality of first particles that comprise a resin component comprising a first resin, the first resin comprising a first resin polymerizable group, the first resin polymerizable group comprising a carbon-carbon double bond directly attached to an electron withdrawing group, a thermal radical initiator dispersed or dissolved in the resin component, and a retardant dispersed or dissolved in the resin component.

Abstract: Described herein are coated optical fibers including an optical fiber portion, wherein the optical fiber portion includes a glass core and cladding section that is configured to possesses certain mode-field diameters and effective areas, and a coating portion including a primary and secondary coating, wherein the primary coating is the cured product of a composition that possesses specified liquid glass transition temperatures, such as below ?82° C., and/or a viscosity ratios, such as between 25° C. and 85° C., of less than 13.9. Also described are radiation curable coating compositions possessing reduced thermal sensitivity, methods of coating such radiation curable coating compositions to form coated optical fibers, and optical fiber cables comprising the coated optical fibers and/or radiation curable coating compositions elsewhere described.

Abstract: Described herein are radiation curable compositions for coating optical fibers including a reactive oligomer with at least one polymerizable group and a backbone, a reactive diluent monomer, a photoinitiator, optionally one or more additives, and a filler component. Such compositions are configured to possess specified liquid glass transition temperatures and/or viscosity ratios when measured between 25, 55, and/or 85 degrees Celsius. Also described are compositions wherein the filler component is present in specified amounts and/or sizes, and contains specified types of filler constituents. Also described are optical fibers coated from such compositions, optical fiber cables including optical fibers coated from such compositions, and methods of producing coated optical fibers from such compositions.

Abstract: A method of forming a three-dimensional object comprises the steps of forming a layer of a particulate composition, selectively depositing a liquid composition onto the layer of the particulate composition in accordance with computer data corresponding to the shape of at least a portion of a three-dimensional object, initiating polymerization, and repeating the steps a plurality of times to form a three-dimensional object. The particulate composition comprises a plurality of first particles that comprise a resin component comprising a first resin, the first resin comprising a first resin polymerizable group, the first resin polymerizable group comprising a carbon-carbon double bond directly attached to an electron withdrawing group, a thermal radical initiator dispersed or dissolved in the resin component, and a retardant dispersed or dissolved in the resin component.

Abstract: A method of forming a three-dimensional object comprises the steps of forming a layer of a particulate composition, selectively depositing a liquid composition onto the layer of the particulate composition in accordance with computer data corresponding to the shape of at least a portion of a three-dimensional object, initiating polymerization, and repeating the steps a plurality of times to form a three-dimensional object. The particulate composition comprises a plurality of first particles that comprise a resin component comprising a first resin, the first resin comprising a first resin polymerizable group, the first resin polymerizable group comprising a carbon-carbon double bond directly attached to an electron withdrawing group, a thermal radical initiator dispersed or dissolved in the resin component, and a retardant dispersed or dissolved in the resin component.

Abstract: Described herein are coated optical fibers including an optical fiber portion, wherein the optical fiber portion includes a glass core and cladding section that is configured to possesses certain mode-field diameters and effective areas, and a coating portion including a primary and secondary coating, wherein the primary coating is the cured product of a composition that possesses specified liquid glass transition temperatures, such as below ?82° C., and/or a viscosity ratios, such as between 25° C. and 85° C., of less than 13.9. Also described are radiation curable coating compositions possessing reduced thermal sensitivity, methods of coating such radiation curable coating compositions to form coated optical fibers, and optical fiber cables comprising the coated optical fibers and/or radiation curable coating compositions elsewhere described.

Abstract: Described herein are coated optical fibers including an optical fiber portion, wherein the optical fiber portion includes a glass core and cladding section that is configured to possesses certain mode-field diameters and effective areas, and a coating portion including a primary and secondary coating, wherein the primary coating is the cured product of a composition that possesses specified liquid glass transition temperatures, such as below ?82° C., and/or a viscosity ratios, such as between 25° C. and 85° C., of less than 13.9. Also described are radiation curable coating compositions possessing reduced thermal sensitivity, methods of coating such radiation curable coating compositions to form coated optical fibers, and optical fiber cables comprising the coated optical fibers and/or radiation curable coating compositions elsewhere described.

Abstract: Described herein are coated optical fibers including an optical fiber portion, wherein the optical fiber portion includes a glass core and cladding section that is configured to possesses certain mode-field diameters and effective areas, and a coating portion including a primary and secondary coating, wherein the primary coating is the cured product of a composition that possesses specified liquid glass transition temperatures, such as below ?82° C., and/or a viscosity ratios, such as between 25° C. and 85° C., of less than 13.9. Also described are radiation curable coating compositions possessing reduced thermal sensitivity, methods of coating such radiation curable coating compositions to form coated optical fibers, and optical fiber cables comprising the coated optical fibers and/or radiation curable coating compositions elsewhere described.

Abstract: A method of forming a three-dimensional object comprises the steps of forming a layer of a particulate composition, selectively depositing a liquid composition onto the layer of the particulate composition in accordance with computer data corresponding to the shape of at least a portion of a three-dimensional object, initiating polymerization, and repeating the steps a plurality of times to form a three-dimensional object. The particulate composition comprises a plurality of first particles that comprise a resin component comprising a first resin, the first resin comprising a first resin polymerizable group, the first resin polymerizable group comprising a carbon-carbon double bond directly attached to an electron withdrawing group, a thermal radical initiator dispersed or dissolved in the resin component, and a retardant dispersed or dissolved in the resin component.

Abstract: A method of forming a three-dimensional object comprises the steps of forming a layer of a particulate composition, selectively depositing a liquid composition onto the layer of the particulate composition in accordance with computer data corresponding to the shape of at least a portion of a three-dimensional object, and repeating the steps a plurality of times to form a three-dimensional object. The particulate composition comprises a plurality of first particles that comprise a resin component comprising a first resin, the first resin comprising a first resin polymerizable group. Either or both of the particulate composition and the liquid composition comprise an initiator capable of initiating polymerization of at least the first resin. At least the first resin undergoes melting and polymerization in a plurality of the locations where the liquid composition has been selectively deposited.

Abstract: A polyester having a saturated backbone, a method of preparing said polyester, an intermediate unsaturated polyester product, and a method for preparing said intermediate unsaturated polyester product, where the number of carbon backbone atoms between two neighboring ester groups in the backbone is randomly distributed over the polyester, and the polyester has an M/E ratio of 14 or more, wherein M is the number of backbone carbon atoms in the polyester not including the ester carbons and E is the number of ester groups in the polyester.

Abstract: The invention is directed to a polymer composition including a polyolefin and a polyester containing first repeating units of general structure wherein Rx is an organic group having a chain length of at least 8 atoms, n1 is the number of first repeating units in the polyester. Such polymer composition is homogeneous and may be used as an alternative for pure polyolefin showing improved printability and oxygen permeability.

Abstract: A process for preparing a copolymer comprising subjecting a first cyclic ester having a ring size from 4 to 11 atoms and a second cyclic ester having a ring size from 12 to 40 atoms to ring-opening copolymerization using as catalyst a compound of formula I, wherein M is trivalent Al, Ti, V, Cr, Mn, Co, yttrium, Sc or lanthanides; X and X? are both a heteroatom; Y and Y? are O, N, S or P; Z is a substituent as described herein; L1 is an organic moiety linking X and Y; L2 is an organic moiety linking X? and Y?; L3 is an organic moiety linking Y and Y? and has a chain length between Y and Y? of at least 2 atoms. The copolymer has a randomness of at least 0.5 and a number average molecular weight of at least 15000 g/mol.

Abstract: The invention is directed to a polymer composition comprising a polyolefin and a polyester containing first repeating units of general structure (I) wherein RX is an organic group having a chain length of at least 8 atoms, —n1 is the number of first repeating units in the polyester. Such polymer composition is homogeneous and may be used as an alternative for pure polyolefin showing improved printability and oxygen permeability.

Abstract: A polyester having a saturated backbone, a method of preparing said polyester, an intermediate unsaturated polyester product, and a method for preparing said intermediate unsaturated polyester product, where the number of carbon backbone atoms between two neighbouring ester groups in the backbone is randomly distributed over the polyester, and the polyester has an M/E ratio of 14 or more, wherein M is the number of backbone carbon atoms in the polyester not including the ester carbons and E is the number of ester groups in the polyester.

Abstract: A process for preparing a copolymer comprising subjecting a first cyclic ester having a ring size from 4 to 11 atoms and a second cyclic ester having a ring size from 12 to 40 atoms to ring-opening copolymerization using as catalyst a compound of formula I, wherein M is trivalent Al, Ti, V, Cr, Mn, Co, yttrium, Sc or lanthanides; X and X? are both a heteroatom; Y and Y? are O, N, S or P; Z is a substituent as described herein; L1 is an organic moiety linking X and Y; L2 is an organic moiety linking X? and Y?; L3 is an organic moiety linking Y and Y? and has a chain length between Y and Y? of at least 2 atoms. The copolymer has a randomness of at least 0.5 and a number average molecular weight of at least 15000 g/mol.