Abstract: A polyimide, comprising 1-100 mol % of repeating units of formula (1), based on 100 mol % of total repeating units of the polyimide, wherein each V is as defined herein; and each R1 is independently a divalent group of formula (3), wherein A is anionic, and each A is independently —O, —S, —S(O)2, —S(O)2O, —OS(O)2O, —OP(O) (OR)dO, —P(O)(Re)O, —P(O)(ORf)O, or —OP(O)(Rg)O; and X is cationic, and each X is independently Li, Na, K, Cs, Mg, Ca, Sr, Cr, Mn, Fe, Co, Ni, Cu, Ag, Zn, Cd, B, Al, Ga, In, Ge, Sn, Pb, As, Sb, phosphonium, imidazolium, guanidinium, or pyridinium; and Rd, Re, Rf, and Rg are each independently hydrogen, substituted or unsubstituted C1-8 alkyl, or substituted or unsubstituted C6-12 aryl.

Abstract: A self-branching polyetherimide comprising a first repeating unit derived from polymerization of the aromatic dianhydride and a first diamine, wherein the first diamine comprises a carboxyl-substituted C6-24 aromatic hydrocarbon group; and optionally, a second repeating unit derived from polymerization of an aromatic dianhydride and a second diamine, wherein the second diamine comprises a C1-30 divalent hydrocarbon group, optionally comprising 1 to 4 heteroatoms, wherein the self-branching polyetherimide is end-capped with phthalic anhydride.

Abstract: The present invention relates to relates to a polymer formulation for three-dimensionally (3D) printing an article by stereolithography, the formulation comprising a functionalized polymer. The invention further relates to lithographic methods to form 3D objects that incorporate the aforementioned polymer formulation.

Abstract: The present invention relates to poly(amide imide) (PAI) precursor polymers which can for example be used in Vat photopolymerization processes like lithographic processes for the photofabrication of three-dimensional (3D) articles. The invention further relates to polymer compositions including these poly(amide imide) (PAI) precursor polymers. Still further, the invention relates to vat photopolymerization methods to form three-dimensional (3D) objects that incorporate the aforementioned polymer compositions.

Abstract: The present invention relates to relates to a polymer formulation for three-dimensionally (3D) printing an article by stereolithography, the formulation comprising a functionalized polymer. The invention further relates to lithographic methods to form 3D objects that incorporate the aforementioned polymer formulation.

Abstract: A polyimide oligomer of formula (1a), (1b), a copolymer thereof, or a combination thereof wherein each G1 is independently the same or different, and is a cation group; each G2 is independently the same or different, and is an anion group; each D is independently the same or different, and is a single bond or C1-20 divalent hydrocarbon group; each V is independently the same or different, and is a tetravalent C4-40 hydrocarbon group; each R is independently the same or different, and is a C1-20 divalent hydrocarbon group; each n is independently the same or different, and is 1 to 1000, provided that the total of all values of n is greater than 4; and t is 2 to 1000.

Abstract: A polyimide composition includes 1 to 99 weight percent, preferably 70 to 99 weight percent, more preferably 75 to 95 weight percent of a first polyimide; and 1 to 99 weight percent, preferably 1 to 30 weight percent, more preferably 2 to 25 weight percent of a second polyimide, wherein the first polyimide and the second polyimide are different, and wherein the polyimide composition has a melt flow rate that is greater than a melt flow rate of the first polyimide and less than a melt flow rate of the second polyimide; an apparent viscosity that is less than an apparent viscosity of the first polyimide and less than an apparent viscosity of the second polyimide; and a notched Izod impact strength that is greater than a notched Izod impact strength of the first polyimide and greater than a notched Izod impact strength of the second polyimide.

Abstract: The present invention relates to relates to a polymer formulation for three-dimensionally (3D) printing an article by stereolithography, the formulation comprising a functionalized polymer. The invention further relates to lithographic methods to form 3D objects that incorporate the aforementioned polymer formulation.

Abstract: An exhaust mixer apparatus, emissions cleaning module, and a method of manufacturing the exhaust mixer apparatus is provided. The exhaust mixer apparatus comprises an exhaust conduit, a first exhaust mixer and a second exhaust mixer. The exhaust conduit is configured to extend in an elongate direction comprising an inlet and an outlet for transporting exhaust fluid. The first exhaust mixer comprises a plurality of elongate mixing blades each having a length extending in the elongate direction. The elongate mixing blades are connected together along at least part of their lengths and arranged about the elongate direction, each elongate mixing blade comprising an outer edge extending in the elongate direction. The elongate mixing blades are twisted along their lengths such that the outer edge of each elongate mixing blade is rotated about the elongate direction. The exhaust conduit is configured to locate the first exhaust mixer in an upstream location of the exhaust conduit.

Abstract: Methods, systems, and devices for defining an action node series at a database system are described. In some examples, the workflow may include one or more nodes are associated with an action. When executed, the workflow may produce an outcome based on the occurrence of an event or parameter associated with the one or more nodes. In some examples, the workflow may include one or more branch nodes. A branch node may include logic such that, when the workflow is executed, the logic selects a particular workflow path that includes its own specific nodes. The path may be selected based on the occurrence of an event or a value of one or more parameters. Thus, when a workflow including one or more branch nodes is executed, the outcome of the workflow may be based on the occurrence of the event or the value of the parameter.

Abstract: A polyimide oligomer of the formula wherein G is a group having a valence of t and is connected by a covalent bond or an ionic bond, each Q is independently the same or different, and is a cation or a substituted or unsubstituted divalent C1-60 hydrocarbon group, each M is independently the same or different, and is a substituted or unsubstituted divalent C1-60 hydrocarbon group, —O—, —C(O)—, —OC(O)—, —OC(O)O—, —NHC(O)—, —(O)CNH—, —S—, —S(O)—, or —S(O)2—, D is a phenylene, each V is independently the same or different, and is a tetravalent C4-40 hydrocarbon group, each R is independently the same or different, and is a C1-20 divalent bridging group, a C1-20 alkylene-XA, or a C6-30 arylene-XA wherein XA is a cation-anion complex, provided that at least one R is C1-20 alkylene-XA or C6-30 arylene-XA, q, m, d, p, t, and n are as provided herein.

Abstract: A polyimide oligomer of formula (1a), (1b), a copolymer thereof, or a combination thereof wherein each G1 is independently the same or different, and is a cation group; each G2 is independently the same or different, and is an anion group; each D is independently the same or different, and is a single bond or C1-20 divalent hydrocarbon group; each V is independently the same or different, and is a tetravalent C4-40 hydrocarbon group; each R is independently the same or different, and is a C1-20 divalent hydrocarbon group; each n is independently the same or different, and is 1 to 1000, provided that the total of all values of n is greater than 4; and t is 2 to 1000.

Abstract: A ureido-pyrimidinone oligomer having the formula (I) wherein each Z? is independently the same or different, and is a substituted or unsubstituted straight or branched chain C1-10 alkyl, each R1 is independently the same or different, and is a substituted or unsubstituted straight or branched chain C1-20 alkylene, substituted or unsubstituted C2-20 alkenylene, substituted or unsubstituted C3-8 cycloalkylene, or substituted or unsubstituted C6-18 arylene, each V is independently the same or different, and is a substituted or unsubstituted tetravalent C4-40 hydrocarbon group, each R is independently the same or different, and is a substituted or unsubstituted C1-24 divalent hydrocarbon group; and n has an average value of 2 to 50, preferably 3 to 40, more preferably 5 to 30.

Abstract: A branched polyimide of the formula (I) wherein G is a group having a valence of t present in an amount 0.01 to 20 mol %, each Q is independently the same or different, and is a divalent C1-60 hydrocarbon group, each M is independently the same or different, and is —O—, —C(O)—, —OC(O)—, —OC(O)O—, —NHC(O), —(O)CNH—, —S—, —S(O)—, or —S(O)2—, D is a phenylene, each V is independently the same or different, and is a tetravalent C4-40 hydrocarbon group, each R is independently the same or different, and is a C1-20 divalent hydrocarbon group, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 2 to 6, and each n is independently the same or different, and is 1 to 1,000, provided that the total of all values of n is greater than 4.

Abstract: A polyimide oligomer of the formula wherein G is a group having a valence of t, each R is independently a C1-30 divalent bridging group, a C1-20 alkylene-X, or a C6-30 arylene-X wherein —X is —O-M?, —C(O)O-M?, —OC(O)O-M?, —S-M?, —S(O)2-M?, —S(O)3-M?, —OS(O)3-M?, or —OP(O)3-M? wherein each M? is independently Li, Na, K, Cs, Mg, Ca, Sr, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Ge, Sn, Pb, As, or Sb, provided that at least one R is C1-20 alkylene-X or C6-30 arylene-X, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 1 to 6, and each n is independently 1 to 1,000, the total of all values of n is greater than 4, the polyimide oligomer is thermoplastic, and Q, M, D, and V are as provided herein.

Abstract: Methods, systems, and devices for defining an action node series at a database system are described. In some examples, the workflow may include one or more nodes are associated with an action. When executed, the workflow may produce an outcome based on the occurrence of an event or parameter associated with the one or more nodes. In some examples, the workflow may include one or more branch nodes. A branch node may include logic such that, when the workflow is executed, the logic selects a particular workflow path that includes its own specific nodes. The path may be selected based on the occurrence of an event or a value of one or more parameters. Thus, when a workflow including one or more branch nodes is executed, the outcome of the workflow may be based on the occurrence of the event or the value of the parameter.

Abstract: A polyimide composition includes 1 to 99 weight percent, preferably 70 to 99 weight percent, more preferably 75 to 95 weight percent of a first polyimide; and 1 to 99 weight percent, preferably 1 to 30 weight percent, more preferably 2 to 25 weight percent of a second polyimide, wherein the first polyimide and the second polyimide are different, and wherein the polyimide composition has a melt flow rate that is greater than a melt flow rate of the first polyimide and less than a melt flow rate of the second polyimide; an apparent viscosity that is less than an apparent viscosity of the first polyimide and less than an apparent viscosity of the second polyimide; and a notched Izod impact strength that is greater than a notched Izod impact strength of the first polyimide and greater than a notched Izod impact strength of the second polyimide.

Abstract: A ureido-pyrimidinone oligomer having the formula (I) wherein each Z? is independently the same or different, and is a substituted or unsubstituted straight or branched chain C1-10 alkyl, each R1 is independently the same or different, and is a substituted or unsubstituted straight or branched chain C1-20 alkylene, substituted or unsubstituted C2-20 alkenylene, substituted or unsubstituted C3-8 cycloalkylene, or substituted or unsubstituted C6-18 arylene, each V is independently the same or different, and is a substituted or unsubstituted tetravalent C4-40 hydrocarbon group, each R is independently the same or different, and is a substituted or unsubstituted C1-24 divalent hydrocarbon group; and n has an average value of 2 to 50, preferably 3 to 40, more preferably 5 to 30.

Abstract: A system for facilitating peer-to-peer sharing of at least one image is disclosed. The system may include a communication device configured to receive the at least one image captured by a first user device along with an orientation and a location of the first user device. Further, the communication device may be configured to receive a location of a second user device. Further, the communication device may be configured to send a notification to the second user device based on matching of a coverage area with the location of the second user device. Further, the system may include a processing device configured to determine the coverage area based on a field of view, the orientation and the location of the first user device. Further, the processing device may be configured to match the coverage area with the location of the second user device.

Abstract: A polyimide oligomer of the formula wherein G is a group having a valence of t, each R is independently a C1-30 divalent bridging group, a C1-20 alkylene-X, or a C6-30 arylene-X wherein —X is —O-M?, —C(O)O-M?, —OC(O)O-M?, —S-M?, —S(O)2-M?, —S(O)3-M?, —OS(O)3-M?, or —OP(O)3-M? wherein each M? is independently Li, Na, K, Cs, Mg, Ca, Sr, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Ge, Sn, Pb, As, or Sb, provided that at least one R is C1-20 alkylene-X or C6-30 arylene-X, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 1 to 6, and each n is independently 1 to 1,000, the total of all values of n is greater than 4, the polyimide oligomer is thermoplastic, and Q, M, D, and V are as provided herein.