Abstract: An emulsion component includes a polyglycerol ester-base emulsifier and a polyglycerol ester-based coemulsifier. The polyglycerol ester-base emulsifier has a hydrophilic-lipophilic balance value greater than 10, and is formed by reacting a first polyglycerol having a degree of polymerization ranging from 4 to 20 with a first acid. The polyglycerol ester-based coemulsifier has a hydrophilic-lipophilic balance value not greater than 10, and is formed by reacting a polyol with a second acid. The polyol is selected from the group consisting of a glycerol and a second polyglycerol having a degree of polymerization ranging from 2 to 10. In addition, a weight ratio of the polyglycerol ester-based emulsifier and the polyglycerol ester-based coemulsifier ranges from 0.75 to 8. An oil-in-water sunscreen product including the emulsion component and an oil-in-water sunscreen lotion including the emulsion component are also provided.

Abstract: Disclosed herein is a scalp protection composition that includes a carboxylate compound, an emulsifier, and water. The carboxylate compound is represented by formula (I): In formula (I), R1 represents a C4-C8 alkyl group, and R2 represents a C10-C26 alkyl group.

Abstract: A liquid anti-friction composition includes an ester product having a number average molecular weight that is greater than 3800 g/mol, and obtained by subjecting a mixture that includes diglycerol, a monobasic acid component, and a dibasic acid component to an esterification reaction. The monobasic acid component includes at least one C14-C24 branched chain fatty acid.

Abstract: A base oil includes an ester compound obtained by reacting a fatty acid component and a monohydric alcohol component. The fatty acid component includes a C4-C28 fatty acid. The monohydric alcohol component includes at least one C4-C22 straight chain monohydric alcohol and at least one C4-C22 branched chain monohydric alcohol. A lubricant oil composition including the base oil is also disclosed.

Abstract: A liquid anti-friction composition includes an ester product having a number average molecular weight that is greater than 3800 g/mol, and obtained by subjecting a mixture that includes diglycerol, a monobasic acid component, and a dibasic acid component to an esterification reaction. The monobasic acid component includes at least one C14-C24 branched chain fatty acid.

Abstract: A base oil includes an ester compound obtained by reacting a fatty acid component and a monohydric alcohol component. The fatty acid component includes a C4-C28 fatty acid. The monohydric alcohol component includes at least one C4-C22 straight chain monohydric alcohol and at least one C4-C22 branched chain monohydric alcohol. A lubricant oil composition including the base oil is also disclosed.

Abstract: An ester-based lubricating oil for use in a rotary screw compressor utilizing a chlorine-free hydrofluorocarbon (HFC) refrigerant such as R-134a contains a product obtained from a reaction of tripentaerythritol and a mixed C5-C10 monocarboxylic acid, or a product obtained from a reaction of dipentaerythritol and a mixed C5-C10 monocarboxylic acid, and optionally a product obtained from a reaction of dipentaerythritol and a C5 monocarboxylic acid.

Abstract: The present invention relates to a novel refrigeration oil comprising any one of the following three: (A) a polyol ester (POE) obtained by reacting one or more polyol(s) with one or more C4-10 straight or branched chain fatty acid(s) and one or more C5-10 fatty acid(s) having a specific structure, (B) a mixture of above (A) polyol ester and another polyol ester obtained by reacting one or more polyol(s) with one or more C4-10 straight or branched chain fatty acid(s) and one or more C5-10 fatty acid(s) having a specific structure, and (C) a mixture of one or both of the aforesaid (A) polyol ester and (B) polyol ester with a polyol ester obtained by reacting a polyol with the other fatty acid than the aforesaid C5-10 fatty acid(s) having a specific structure.

Abstract: The present invention relates to a novel refrigeration oil comprising any one of the following three: (A) a polyol ester (POE) obtained by reacting one or more polyol(s) with one or more C4-10 straight or branched chain fatty acid(s) and one or more C5-10 fatty acid(s) having a specific structure, (B) a mixture of above (A) polyol ester and another polyol ester obtained by reacting one or more polyol(s) with one or more C4-10 straight or branched chain fatty acid(s) and one or more C5-10 fatty acid(s) having a specific structure, and (C) a mixture of one or both of the aforesaid (A) polyol ester and (B) polyol ester with a polyol ester obtained by reacting a polyol with the other fatty acid than the aforesaid C5-10 fatty acid(s) having a specific structure.

Abstract: An ester-based lubricating oil for use in a rotary screw compressor utilizing a chlorine-free hydrofluorocarbon (HFC) refrigerant such as R-134a contains a product obtained from a reaction of tripentaerythritol and a mixed C5-C10 monocarboxylic acid, or a product obtained from a reaction of dipentaerythritol and a mixed C5-C10 monocarboxylic acid, and optionally a product obtained from a reaction of dipentaerythritol and a C5 monocarboxylic acid.