Aromatic hydrocarbon

About: Aromatic hydrocarbon is a research topic. Over the lifetime, 5814 publications have been published within this topic receiving 55499 citations. The topic is also known as: arene & arenes.

Salt for use in acid generating agent, and resist composition of chemical amplification type

Abstract: PROBLEM TO BE SOLVED: To provide a salt forming a pattern of excellent CD uniformity and an excellent focus margin, and a resist composition or the like comprising the saltSOLUTION: The salt is represented by formula (I-CC) In the formula, Qand Qeach represents a fluorine atom or a perfluoroalkyl group; Xrepresents a single bond or -[CH]-, provided that k is an integer of 1-17; Yrepresents an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, or an aromatic hydrocarbon group; Aand Aeach represents an aliphatic hydrocarbon group, an alicyclic hydrocarbon group or an aromatic hydrocarbon group, provided that Aand Atogether may form a ring; Arrepresents a (m+1)-valent aromatic hydrocarbon group; Brepresents a single bond or an alkylene group; Brepresents a group that can be eliminated by the action of an acid; and mand meach represents an integer of 0-2, mrepresents an integer of 1-3, and mrepresents an integer of 1-3

Method for copolyestercarbonate synthesis

Abstract: Thermally stable block copolyestercarbonates comprising chain members derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of anhydride linkages linking at least two mers of the polyester chain segments, are prepared by a method comprising the steps of: (a) preparing a hydroxy-terminated polyester intermediate comprising structural units derived from at least one dihydroxysubstituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety; and (b) conducting a reaction of the polyester intermediate with phosgene in a reaction mixture comprising water, a substantially water-immiscible organic solvent, and a base, wherein base and phosgene are added simultaneously to the reaction mixture at a substantially constant molar ratio of base to phosgene for a time period of at least about 60 % of the total amount of phosgene added.

Aromatic hydrocarbon resins

Abstract: A method of producing a condensation product by reacting together an aromatic hydrocarbon with a carbonyl compound having more than one carbon atom (therefore excluding formaldehyde) in the presence of aluminium chloride or bromide, at a temperature of from 5° to 90° C. The aluminium chloride or bromide should be substantially anhydrous. The aromatic hydrocarbon should be mono- or bi-nuclear and may be alkylated. The carbonyl compound may be an aldehyde or a betone and may be albyl or aryl.

The electronic spectra of aromatic hydrocarbon anions

Abstract: The electronic spectra of several hydrocarbon anions have been measured. A comparison is given between these spectra and the spectra obtained by Hoytink et al.2). It appeared that the positions of the absorption bands are only shifted about 0.2 kK to lower wavelengths, using potassium instead of sodium as reducing agent.

Process for producing molded product composed of crosslinked resin or crosslinked-resin coated material on a substrate by means of electron beam

Abstract: A process for producing molded product composed of crosslinked resin or coated material composed of crosslinked resin on a substrate which comprises blending a polyolefin-series resin, a compound represented by the formula X -- Y.sub.m I wherein X is a group not containing an acetylenic linkage, Y is a group containing an acetylenic linkage and m is an integer of 1 or more, which is compatible with the resin at a room temperature or an elevated temperature, and a compound selected from the group consisting of an amino compound represented by the formula ##STR1## wherein each of R 1 and R 2 is independently substituted or non-substituted aliphatic hydrocarbon, substituted or non-substituted alicyclic hydrocarbon, or substituted or non-substituted aromatic hydrocarbon, provided that at least one of R 1 or R 2 is substituted or non-substituted aromatic hydrocarbon, an amino compound represented by the formula ##STR2## wherein each of R 3 , R 4 and R 5 is independently substituted or non-substituted aliphatic hydrocarbon, substituted or non-substituted alicyclic hydrocarbon, or substituted or non-substituted aromatic hydrocarbon, provided that at least one of R 3 , R 4 and R 5 is substituted or non-substituted aromatic hydrocarbon; and mixtures thereof which are compatible with the resin at a room temperature or an elevated temperature; and molding the mixture or coating the mixture on a substrate and irradiating the resulting molded material or the resulting coated material by means of an electron beam.