摘要:
A resist developer obtained by a process comprising mixing (1) at least one compound selected from the group consisting of a basic compound A and an organic compound B having phenolic hydroxyl group and carboxyl group in a molecule, and/or (2) a salt C formed between the basic compound A and the organic compound B. The resist developer exhibiting excellent dissolution selectivity, and developing a resist in a short period of time, can be used for developing positive and negative resists.
摘要:
An ester compound having thermal stability in the presence of a metal characterized in that the ester compound is formed between a dihydric to nonahydric hindered alcohol having 5-15 carbon atoms and a saturated aliphatic monocarboxylic acid having 3-20 carbon atoms or a derivative thereof; that the ratio of a branched carboxylic acid or a derivative thereof to the entire carboxylic acids or derivatives thereof is not less than 50 mol %; that the hydroxyl value of the ester compound is not more than 30 mg KOH/g; and that the acid value after a sealed tube test is not more than 10 mg KOH/g; and a lubricating oil composition comprising the ester compound in an amount of not less than 50% by weight. The present invention provides an ester compound having outstandingly good thermal stability in the presence of a metal and a lubricating oil composition and a working fluid composition for a refrigerating machine comprising the ester compound as the main component.
摘要:
The present invention is directed to a working fluid composition for a refrigerating machine which contains difluoromethane and a refrigeration oil. An ester formed between (a) an aliphatic polyhydric alcohol having a carbon number of 2 to 12; and (b) a saturated aliphatic monocarboxylic acid having a carbon number of 4 to 9 or a derivative thereof, the ratio of the number of acyl groups having a branched chain or branched chains to the number of the entire acyl groups in the ester being not less than 95%, is used as a base oil of the refrigeration oil. The working fluid composition for refrigerating machine of the present invention is excellent not only in compatibility, lubricity, and electric insulating property but also in thermal stability as compared to the conventional products.
摘要:
The refrigeration oil composition comprises (1) a hydrogenated fluoroethane and (2) an ester compound obtained from (2-a) an aliphatic polyhydric alcohol having 1 to 6 primary hydroxyl groups, (2-b) a saturated aliphatic monocarboxylic acid having 2 to 9 carbon atoms, straight or branched, or a derivative thereof and (2-c) a saturated aliphatic dicarboxylic acid having 2 to 10 carbon atoms, straight or branched, or a derivative thereof, said ester compound having a kinematic viscosity at 100 degree C. of 1 to 100 cst.
摘要:
A resist developer comprising (1) a basic organic compound A and (2) a salt C of (a) a basic compound A′ and (b) an organic compound B capable of forming a salt together with said basic compound A′, wherein said basic compound A′ is the same or different from said basic organic compound A, and wherein said resist developer is prepared by combining (1) and (2), or by reacting an excess amount of said basic organic compound A with said organic compound B.
摘要翻译:一种抗蚀剂显影剂,其包含(1)碱性有机化合物A和(2)碱性化合物A'的(a)和(b)能够与所述碱性化合物A'一起形成盐的有机化合物B的盐C(其中 所述碱性化合物A'与所述碱性有机化合物A相同或不同,并且其中所述抗蚀剂显影剂通过组合(1)和(2)制备,或通过使过量的所述碱性有机化合物A与所述有机化合物 B.
摘要:
A working fluid composition for use in a refrigeration system which comprises a refrigerating oil comprising a compound having one or more ketone groups in the molecular structure as a base oil and a hydrofluorocarbon.
摘要:
A working fluid composition for use in a refrigeration system which comprises a refrigerating oil comprising a compound having one or more ketone groups in the molecular structure as a base oil and a hydrofluorocarbon.
摘要:
The present invention is directed to a working fluid composition for refrigerating machine comprising: (i) a hydrofluorocarbon, (ii) a compound having an epoxycyclohexyl group and/or a compound having an epoxycyclopentyl group, and (iii) an ester formed between a neopentylpolyol and a saturated branched aliphatic monocarboxylic acid having a carbon number of 7 to 9.The working fluid composition of the present invention is excellent in compatibility, lubricity, thermal stability and insulating property.
摘要:
To provide a detergent composition which has little corrosion to a wiring material and is excellent in cleaning ability of a semiconductor substrate or semiconductor device on which the fine particles and the metal impurities are deposited. A detergent composition comprising a reducing agent, wherein the detergent composition has an oxidation-reduction potential at 25° C. of +0.2 V or less, and a pH at 25° C. of from 3 to 12; and a cleaning process of a semiconductor substrate or a semiconductor device using the detergent composition.
摘要:
The present invention relates to a synthetic lubricating oil comprising cyclic ketals or cyclic acetals obtained by a reaction between one or more polyhydric alcohols having an even number of hydroxyl groups of not less than 4 and not more than 10 and one or more specific carbonyl compounds, or one or more ketals or acetals which are reactive derivatives of said carbonyl compounds; a working fluid composition for a refrigerating machine comprising a hydrofluorocarbon and a refrigeration oil containing the cyclic ketals or cyclic acetals; and novel compounds of the above cyclic acetals and a production method thereof. The present invention provides a synthetic lubricating oil which shows a good thermal stability, a good oxidation resistance, no carboxylic acid formation due to hydrolysis and a low hygroscopicity and is inexpensive as well. Also, a working fluid composition for a refrigerating machine which shows a good insulating property, favorable hygroscopicity, and no carboxylic acid formation due to hydrolysis as well as being inexpensive can be provided.