Abstract: Learning materials of an Ueda Method can be distributed to teachers and learners through a computer network, and a teacher can effectively teach a language using the distributed learning materials of the Ueda Method. The method includes: (A) inputting to a computer predetermined information about our daily life which refers to an advertisement of a company; (B) preparing language learning materials for a learner and language teaching materials for a teacher based on the advertisement; (C) distributing the language learning materials to the learner through a network; (D) distributing to a teacher the language learning materials and the language teaching materials through a network; (E) training a teacher using the language learning materials and the language teaching materials; (F) inputting and registering the trained teacher and a learner in the computer; and (G) the trained teacher teaching a language to a learner through the computer.

Abstract: Learning materials of an Ueda Method can be distributed to teachers and learners through a computer network, and a teacher can effectively teach a language using the distributed learning materials of the Ueda Method. The method includes: (A) inputting to a computer predetermined information about our daily life which refers to an advertisement of a company; (B) preparing language learning materials for a learner and language teaching materials for a teacher based on the advertisement; (C) distributing the language learning materials to the learner through a network; (D) distributing to a teacher the language learning materials and the language teaching materials through a network; (E) training a teacher using the language learning materials and the language teaching materials; (F) inputting and registering the trained teacher and a learner in the computer; and (G) the trained teacher teaching a language to a learner through the computer.

Abstract: A method for preparing language learning materials includes the steps of: selecting predetermined information from the information about our daily life; producing predetermined types of sentences based on sentences described in the information, sentences produced by amending sentences described in the information, or sentences produced according to the information; and representing predetermined types of sentences by segmenting the predetermined types of sentences in word units, representing each word by a picture, a symbol, and/or a photo, and representing a portion of each of the segmented words which cannot be, or can hardly be, represented by the picture, the symbol, and/or the photo in a foreign language to be learned. The language learning materials are prepared by these steps.

Abstract: A petroleum additive having excellent storage stability and heat stability, which comprises an alkaline earth metal salt of aromatic hydroxycarboxylic acid containing a higher aliphatic carboxylic acid, a higher aliphatic amine or a higher aliphatic amide, or a sulfurized mixture thereof. A process for improving storage stability, heat stability and viscosity character of the petroleum additive.

Abstract: Disclosed is a process for producing a mixture of sulfurized alkaline earth metal salts of a salicylic acid compound and a phenol which comprises reacting either a mixture of reactants comprising a phenol, a dihydric alcohol, and an alkaline earth metal oxide and/or hydroxide or a mixture of these reactants and water, subsequently distilling off water and the dihydric alcohol, reacting the resulting bottom with carbon dioxide, and then adding a dihydric alcohol and elemental sulfur to the resulting reaction product to conduct sulfurization reaction.

Abstract: Disclosed are a process for producing an over-based sulfurized alkaline earth metal phenate which comprises reacting either a mixture of reaction materials comprising a phenol, a dihydric alcohol, an alkaline earth metal reagent which is an alkaline earth metal oxide or hydroxide or a mixture of both, and sulfur or a mixture of these reaction materials with water, distilling off an excess amount of the dihydric alcohol and at least excess amount of water, and subsequently treating the resulting distillation residue with carbon dioxide, wherein the carbon dioxide treatment is carried out (A) in the presence of 0.001 to 0.7 mol of a fatty acid or a fatty amine per 1 mol of the alkaline earth metal reagent and (B) in the presence of either (i) 0.01 to 0.9 mol of water per 1 mol of the alkaline earth metal reagent or (ii) 0.05 to 5.

Abstract: A process for the production of an over based alkaline earth metal phenate (sulfurized, unsulfurized or a mixture thereof), in which the process comprises the steps of: effecting reactions among phenols, dihydric alcohols and an alkaline earth metal reagent (alkaline earth metal oxide or hydroxide or a mixture thereof), or among these compounds further mixed with sulfur and/or water; removing an excess of the dihydric alcohols and at least an excess of water by distillation; and subsequently treating resulting distillation residue with carbon dioxide, wherein the improvement resides in that the carbon dioxide treatment is carried out in the presence of water in an amount of from 0.01 to 1.0 mol per 1 mol of the alkaline earth metal reagent. Preferably, the carbon dioxide treatment is carried out in the presence of 0.1 to 0.7 mol sulfur and 0.1 to 1.0 mol water per 1 mol of the alkaline earth metal reagent.

Abstract: A process for producing an over-based sulfurized alkaline earth metal phenate type detergent, which comprises reacting a phenol and a dihydric alcohol with an alkaline earth metal reagent to carry out a metal addition reaction, and reacting sulfur therewith to carry out a sulfurization reaction, and then reacting carbon dioxide therewith to carry out a carbon dioxide treatment, characterized in that the metal addition reaction and the sulfurization reaction are carried out under pressure and closed conditions. The sulfurization reaction may be carried out simultaneously with the metal addition reaction, or, alternatively, with the carbon dioxide treatment after the metal addition reaction. Furthermore, the sulfurization reaction may be carried out between the metal addition reaction and the carbon dioxide treatment.

Abstract: A process for producing a mixture of sulfides of alkaline earth metal salts of an alkylhydroxybenzoic acid and an alkylphenol comprising the steps of: reacting a mixture of a phenol, a dihydric alcohol and an alkaline earth metal oxide and/or hydroxide (hereinafter referred to as an alkaline earth metal reagent) in an amount of no more than 0.99 gram equivalents per gram equivalent of said phenol; distilling off water and the dihydric alcohol until the amount of the dihydric alcohol becomes no more than 0.6 moles per mole of the alkaline earth metal reagent; reacting the resulting distillation residue with carbon dioxide; and reacting the resulting product with elemental sulfur in an amount of 0.1-4.0 moles per mole of the alkaline earth metal reagent.

Abstract: A process for the production of a basic alkaline earth metal phenate is disclosed. The process comprises reacting a phenol, a dihydric alcohol, and an alkaline earth metal agent selected from alkaline earth metal oxides and hydroxides to achieve the addition of the alkaline earth metal to the phenol, wherein water is added to the reaction system in an amount of from 0.01 to 10 mols per mol of the alkaline earth metal agent. This basic alkaline earth metal phenate is useful as an additive for lubricating oils and fuel oils.