摘要:
The present invention discloses a method of purification of prostaglandins including fluorine atoms by using preparative HPLC. Tafluprost and Travoprost are prostaglandins including fluorine. The chemical structure of the impurities in crude Tafluprost and crude Travoprost also contain fluorine, therefore, the removal of the impurities is difficult. Purification by using preparative high performance liquid chromatography (HPLC) can achieve high-quality liquid bulk drugs.
摘要:
A stabilizer composition which includes (a) a UV absorber of foramidine derivative, (b) a UV absorber of benzotriazole derivative, and (c) an antioxidant is disclosed. The stabilizer composition disclosed here are suitable for improving the stabilization of the organic polymers to against the degradation by light.
摘要:
The present invention discloses a chemical amplified photoresist composition including a polymer having a repeated unit of the formula (II), 1 wherein R1 is H, haloalkyl group or C1-C4 alkyl group; R2 is hydroxyl group, C1-C8 alkoxy group or C1-C8 thioalkyl group; G is (CH2)n, O or S, wherein n is 0, 1, 2, 3 or 4; Rc is a lactone group; and m is 1, 2 or 3. The chemical amplified photoresist composition of the present invention can be applied to general lithography processes, and particularly to the lithography of ArF, KrF or the like light sources, and exhibit excellent resolution, figures and photosensitivity.
摘要:
The present invention discloses a compound having the following formula (I), 1 wherein R1 is H, haloalkyl group or C1-C4 alkyl group; R2 is hydroxyl group, C1-C8 alkoxy group or C1-C8 thioalkyl group; G is (CH2)n, O or S, wherein n is 0, 1, 2, 3 or 4; Rc is a lactone group; and m is 1, 2 or 3. This compound is a monomer and suitable for synthesis to form polymers with good hydrophilicity, adhesion and dry-etch resistance. Particularly, this compound can form photosensitive polymers or copolymers by reacting with suitable photosensitive monomers.
摘要:
The present invention relates to a novel method of synthesizing bepotastine or its benzenesulfonic acid salt and novel intermediates used therein. The present invention uses L-α-hydroxy acid for chiral resolution to form an L-α-hydroxy acid salt of a compound represented by the following formula (VII-1), so as to synthesize bepotastine or its benzenesulfonic acid salt in high optical purity.
摘要:
A dye composition is disclosed, which comprises a blue anthraquinone dye of the following formula (I) 1 wherein Y is nullCHnullCH2, nullCH2CH2Cl or nullCH2CH3OSO3H; and a gray-black azo dye of the following formula (II) 2 wherein Y is defined as the above. The dye compositions of the present invention have good stability and build-up property. The dye compositions are suitable for dyeing and printing materials that contain either cellulose fibers, such as cotton, artificial cotton, linen, and artificial linen, or synthetic polyamide, such as wool, silk, and nylon. The materials obtained through treatment with the dye compositions aforementioned show excellent properties, especially in wash-off, level-dyeing, build-up, light fastness and perspiration-light fastness.
摘要:
A chemically-amplified resist composition is disclosed, which comprises a polymer of formula (I) below: 1 wherein R1 is H, C1-C4 alkyl, or CF3; Q is C4-C12 cycloalkyl; R2 is H, C1-C4 alkyl, or CF3; R3 is C4-C12 branched or cyclic alkyl; and xnullynullz equals to 1. The chemically-amplified resist compositions of the present invention not only can be applied maturely to general lithographic processes, especially to 193 nm lithographic process, but also have excellent photo-sensitivity, and can form a well-resolved pattern and profile.
摘要翻译:公开了一种化学放大抗蚀剂组合物,其包含下式(I)的聚合物:其中R 1是H,C 1 -C 4烷基或CF 3; Q是C 4 -C 12环烷基; R 2是H,C 1 -C 4烷基或CF 3; R 3是C 4 -C 12支链或环状烷基; x + y + z等于1.本发明的化学增幅抗蚀剂组合物不仅可以成熟地应用于一般的光刻工艺,特别是对193nm的光刻工艺,而且还具有优异的光敏性,并且可以形成 良好的模式和形象。
摘要:
Disclosed herein is an ink composition for ink-jet textile printing, which primarily includes (a) at least a reactive dye, (b) water, and (c) at least an organic solvent that is a C4-C6 polyhydric alcohol having one or less primary alcohol groups. The ink composition of the present invention is suitable for dyeing and printing of materials containing either cellulose fibers such as cotton, synthetic cotton, hemp, and synthetic hemp, or amide fibers such as wool and nylon.
摘要:
Reactive dye mixtures comprising a black or navy reactive dye and a reactive disazo dye. The reactive dye mixtures of the present invention are suitable for exhaust dyeing, printing, continuous dyeing or discharge printing of a blended or interwoven fabric of cellulose fibres or cellulose nylon blends. The compounds of the present invention display good level dyeing properties, good build up and excellent low nylon cross-dyeing.
摘要:
A monoazo reactive red dyestuff of the formula (I), 1 wherein the R1, R2, R3, X, D, Z and n are as defined in the description. These kinds of dyestuffs are suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, artificial cotton, linen, and artificial linen, or synthetic polyamide, such as wool, silk, and nylon etc., as well as on mixed or cross-linked cellulose fibers and other fibers. Dyed materials with excellent properties can be obtained, showing especially outstanding performance in of wash-off, level-dyeing, light fastness and perspiration-light fastness.