Abstract: Compounds of formula I may be used in optoelectronic devices wherein R1, R2 and R4 are, independently at each occurrence, H, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 is H or a is, independently at each occurrence, 1 or 2; b is, independently at each occurrence, an integer ranging from 0-3; c is, independently at each occurrence, an integer ranging from 0-4; Ar is independently at each occurrence, H, or heteroaryl; and at least two of Ar are heteroaryl.

Abstract: The invention relates to a polymer comprising structural unit of formula II: wherein R1, R2, R3, R4, R5, R6 and R7 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a, b, d, e and f are independently at each occurrence 0, or an integer ranging from 1 to 4; c and g are independently at each occurrence 0, or an integer ranging from 1 to 3. In another aspect, the invention relates to monomers for preparing the polymers. In yet another aspect, the invention relates to an optical electronic device comprising a polymer comprising structural unit of formula II.

Abstract: Compounds of formula I may be used in optoelectronic devices wherein R1 is, independently at each occurrence, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a is, independently at each occurrence, an integer ranging from 0-4; b is 0, 1 or 2; Ar1 is a direct bond or heteroaryl, aryl, or alkyl or cycloalkyl; Ar2 is heteroaryl, aryl, or alkyl or cycloalkyl; c is an integer ranging from 1-7; and n is an integer ranging from 2-4.

Abstract: A method for making a material useful in an optoelectronic device comprises: providing a mixture of a polytriarylamine and a compound; forming a film of the mixture; and treating the film; wherein the compound comprises at least one functional group selected from arylamine and arylphosphine and at least two functional groups selected from vinyl, allyl, vinyl ether, epoxy, and acrylate. The materials made and the optoelectronic device are also provided.

Abstract: A polymer useful in an optoelectronic device comprises structural unit of formula I: wherein R1 is, independently at each occurrence, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a is, independently at each occurrence, an integer ranging from 0-4; Ar1 is aryl or heteroaryl; Ar2 is fluorene; R2 is alkylene, substituted alkylene, oxaalkylene, CO, or CO2; R3, R4 and R5 are independently hydrogen, alkyl, alkoxy, alkylaryl, aryl, arylalkyl, heteroaryl, substituted alkyl; substituted alkoxy, substituted alkylaryl, substituted aryl, substituted arylalkyl, or substituted heteroaryl; and L is derived from phenylpyridine, tolylpyridine, benzothienylpyridine, phenylisoquinoline, dibenzoquinozaline, fluorenylpyridine, ketopyrrole, 2-(1-naphthyl)benzoxazole)), 2-phenylbenzoxazole, 2 phenylbenzothiazole, coumarin, thienylpyridine, phenylpyridine, benzothienylpyridine, 3 methoxy-2-phenylpyridine, thienylpyridine, phenylimine, vinylpyridine, pyridylnaphthalene, pyridylpyrro

Abstract: Copolymers are disclosed comprising structural units derived from ?-methylene-?-butyrolactone, styrene, methyl methacrylate and acrylonitrile. The copolymers may be used as protective layers in multilayer articles that include UV sensitive substrate materials. The multilayer articles may also include a silicone hardcoat.

Abstract: A polymer useful in an optoelectronic device comprises structural unit of formula I: wherein Ar is heteroaryl or aryl, other than formula I; R1, R2, R3 and R4 are, independently at each occurrence, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a, c and d are, independently at each occurrence, an integer ranging from 0-4; b is an integer ranging from 0-3; and n is an integer greater than 3.

Abstract: The present invention relates to compounds useful as Chemokine Receptor antagonists. Compounds of general formula I are provided: or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compounds and compositions for the inhibition of Chemokine Receptors and also for the treatment of various diseases, conditions, or disorders, including acute or chronic inflammatory disease, cancer or osteolytic bone disorders.

Abstract: An inkjet head maintenance method is used in an inkjet printing apparatus, the inkjet printing apparatus includes a control unit, an inkjet head maintenance unit and at least one inkjet head. Firstly, the control unit reads inkjet head maintenance data from a predetermined inkjet head maintenance table. The inkjet head maintenance table includes the inkjet head maintenance data correlating with different printing modes. The inkjet head maintenance data include the number of maintenance times of the inkjet head during a predetermined printing period or a time interval between two adjacent maintenance times of the inkjet head. Next, the control unit issues an inkjet head maintenance command to the inkjet head maintenance unit according to the read inkjet head maintenance data. In response to the inkjet head maintenance command, the inkjet head maintenance unit is controlled to perform an inkjet head maintenance task corresponding to the inkjet head maintenance data.

Abstract: Compositions comprising at least one phosphorescent organometallic compound and a polymer comprising structural units of formula II are useful in organic light emitting devices wherein R1, R2, and R4 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; wherein R3 and R5 are independently selected from the group consisting of hydrogen, triphenylsilyl, t-butyl, mesityl, diphenyl phosphine oxide, and diphenyl phosphine sulfide; and a, b and d are independently 0 or an integer ranging from 1 to 3.

Abstract: The invention relates to a polymer comprising structural unit of formula II: wherein R1, R2, R3, R4, R5, R6 and R7 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a, b, d, e and f are independently at each occurrence 0, or an integer ranging from 1 to 4; c and g are independently at each occurrence 0, or an integer ranging from 1 to 3. In another aspect, the invention relates to monomers for preparing the polymers. In yet another aspect, the invention relates to an optical electronic device comprising a polymer comprising structural unit of formula II.

Abstract: An optoelectronic device comprises a cathode; an electron-transporting layer comprising a compound of formula I; a light emitting-layer; and an anode; wherein R1 and R2 are independently at each occurrence, hydrogen, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 is H or alkyl; a and b are, independently at each occurrence 0, or an integer ranging from 1 to 3; n is 2 or 3; and Ar is an aryl.

Abstract: The invention relates to a polymer comprising structural unit of formula I: wherein R1, R2, R3, R4, R5, and R6 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a, b, d, e and f are independently at each occurrence 0, or an integer ranging from 1 to 4; c is independently at each occurrence 0, or an integer ranging from 1 to 3. In another aspect, the invention relates to monomers for preparing the polymers. In yet another aspect, the invention relates to an optical electronic device comprising a polymer comprising structural unit of formula I.

Abstract: An inkjet printing correction method is used with an inkjet printing apparatus. The inkjet printing correction method includes the following steps. Firstly, a first test image file is printed out as a print test pattern by the inkjet printing apparatus. Then, the print test pattern is scanned to obtain a second test image file. Then, all second block intervals are compared with respective first block intervals, thereby obtaining correction interval difference data. According to the comparing results, a procedure of ejecting ink droplets from the ink nozzles is determined to be advanced or delayed.

Abstract: Compound of formula C is made by reacting a compound of formula A with an pyridyl boronic acid or pyridyl borate ester to form a compound of formula B; and combining the compound of formula B with a pyridyl dihalide to form the compound of C; wherein R3, R4, R5, R6 and R7 are, independently at each occurrence, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; X is, independently at each occurrence, CH or N; Y is chloro or bromo; Z is bromo or iodo; and when Y is bromo, Z is iodo; d, e, and g are, independently at each occurrence, an integer ranging from 0-4; f is an integer ranging from 0-2; and h is an integer ranging from 0-3.

Abstract: Compounds of formula I may be used in optoelectronic devices wherein R1 and R2 are, independently at each occurrence, H, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a is an integer ranging from 0-2; b is 1 or 2; c is an integer ranging from 0-4; and Ar1 and Ar2 are independently heteroaryl.

Abstract: The invention provides an opto-electronic device comprising at least one sulfonated aromatic condensation copolymer or at least one phosphonated aromatic condensation copolymer. The at least one sulfonated aromatic condensation copolymer is selected from sulfonated polyarylethers, sulfonated polyimides, sulfonated polyphenylene oxides, sulfonated polyarylenes, sulfonated polyphosphazenes, and the at least one phosphonated aromatic condensation copolymer is selected from phosphonated polyarylethers, phosphonated polyimides, phosphonated polyphenylene oxides, phosphonated polyarylenes, phosphonated polyphosphazenes and combinations thereof. The sulfonated polyarylether is a sulfonated polyarylether block copolymer having sulfonated polyaryletherketone blocks, sulfonated polyethersulfone blocks, or combinations thereof.

Abstract: The invention relates to polymers useful in optoelectronic devices and comprising structural unit of formula I: wherein R1 and R2 are independently at each occurrence, hydrogen, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 is H or alkyl; a and b are, independently at each occurrence 0, or an integer ranging from 1 to 3; and Ar is a direct bond or aryl.

Abstract: The present invention provides compositions comprising at least one novel polymeric organic iridium compound which comprises at least one cyclometallated ligand and at least one ketopyrrole ligand. The polymeric organic iridium compositions of the present invention are referred to as Type (2) organic iridium compositions and are constituted such that at least one ligand of the novel organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (2) organic iridium compositions are referred to herein as comprising “polymeric organic iridium complexes”. The novel organic iridium compositions are useful in optoelectronic electronic devices such as OLED devices and photovoltaic devices. In one aspect, the invention provides novel organic iridium compositions useful in the preparation of OLED devices exhibiting enhanced color properties and light output efficiencies.

Abstract: The present invention provides electronic devices comprising novel polymeric organic iridium compositions which provide for enhanced device performance. The polymeric organic iridium compositions employed comprise a polymeric organic iridium compound comprising at least one cyclometallated ligand and at least one ketopyrrole ligand. The polymeric organic iridium compositions employed are referred to as Type (2) organic iridium compositions and are constituted such that at least one ligand of the polymeric organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (2) organic iridium compositions are referred to herein as comprising “polymeric organic iridium complexes”. In one aspect, the present invention provides optoelectronic devices, such as OLED devices and photovoltaic devices. In another aspect, the invention provides OLED devices exhibiting enhanced color properties and light output efficiencies.