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Цитата: Допис від Aлeксандр  Вот и Женя, Клубень кстати, почему то хотел бак водой промыть...

Цитата: Semi-synthetic two-stroke engine oil formulation A semi-synthetic two-stroke engine oil formulation which comprises a base oil consisting of a high-viscosity mineral oil, a medium-viscosity mineral oil, a solvent and a mixture of three(!) polyisobutylenes with different molecular weights(!), and appropriate detergents and dispersants. This semi-synthetic two-stroke engine has both high lubricity and high detergency, and also meets the requirements of low smoke and low exhaust system blocking.

Цитата: We claim: 1. A semi-synthetic two-stroke engine oil comprising the following components: a mineral base oil selected from the group consisting of a medium-viscosity mineral oil (MN) having a viscosity of about 4-8 cSt at 100° C., a high-viscosity mineral oil (HN) having a viscosity of about 10-15 cSt at 100° C., and a mixture of said medium-viscosity mineral oil and said high-viscosity mineral oil; wherein the amount of the high-viscosity mineral oil is from about 0 to 20% and the medium-viscosity mineral oil is from about 10 to 50%. 5-30% by weight of kerosene as the solvent; 2-12% by weight of detergents and dispersants; and a mixture of three polyisobutylenes comprising, based on the total weight of the two-stroke engine oil, 5-30% by weight of a first polyisobutylene with a molecular weight of from 900 to 1000, 5-30% by weight of a second polyisobutylene with a molecular weight of from 400 to 500 and 2-10% by weight of a third polyisobutylene with a molecular weight of from 1200 to 1400. 2. The two-stroke engine oil according to claim 1, wherein the detergents have at least one main ingredient selected from the group consisting of phenates, salicylates, neutral or overbased petroleum sulphonates and synthetic sulphonates of alkaline earth metals. 3. The two-stroke engine oil according to claim 1, wherein the dispersants have at least one main ingredient selected from the group consisting of mono, di or boronated polybutene succinimides, borated polybutene amines, non-borated polybutene amines and polybutene succinimides.

Цитата: The preparation method of the semi-synthetic two-stroke engine oil of the present invention is as follows. Add the mineral base oil, i.e., the high-viscosity mineral oil and the medium-viscosity mineral oil, at room temperature into a vessel. Then add the solvent at room temperature while mixing. Add the detergents and dispersants having been preheated to 60°-70° C (!). while mixing. Finally, add a mixture of the three PIBs having been preheated to 60°-70° C(!). while mixing.

Patent US5498353 - Semi-synthetic two-stroke engine oil formulation - Google Patents

Следующий патент:

Цитата: 4. A lubricating oil composition comprising a. a major portion of a synthetic lubricant component or a mixture of the synthetic lubricant component and a lubricating hydrocarbon mineral base oil, the synthetic lubricant component having a viscosity at 210° F. of between 3.5 and 4.5 centistokes, a viscosity at 25° C. of between 25 and 34 centistokes, a viscosity index of greater than 110, a thermogravimetric analysis value of greater than 86 weight percent and a pour point of less than -50° F., being produced by oligomerizing a mixture of internal olefins having between 9 and 24 carbon atoms inclusive, where the double bond of the internal olefins is randomly distributed throughout the carbon chain by means of reacting the mixture of olefins in the presence of a boron trifluoride catalyst at a temperature between 25° and 150° C. and subsequently conducting one or more mild stripping steps to remove any unreacted olefin monomer as the only separation steps, then hydrogenating the oligomerized olefins to make the synthetic lubricant component, and b. minor portions of additive components. 5. The lubricating oil composition of claim 4 in which in the making of the synthetic lubricant component, the number of carbon atoms in the internal olefins of the mixture is between 11 and 14, inclusive. 6. The lubricating oil composition of claim 4 in which in the making of the synthetic lubricant component, the number of carbon atoms in the internal olefins of the mixture is 13 or 14. 7. The lubricating oil composition of claim 4 in which in the making of the synthetic lubricant component, the oligomerization is conducted in the presence of a protonic promoter selected from the group consisting of alcohols, carboxylic acids and water. 8. The lubricating oil composition of claim 7 in which the protonic promoter in the oligomerization is 1-butanol. 9. The lubricating oil composition of claim 4 in which any mild stripping is conducted at a temperature between 150° and 180° C.

Patent US4420647 - Semi-synthetic lubricating oil composition - Google Patents


Словарь дать? Или на слово поверите что там описана очень сложная формула с кучей реагентов, которые требуют нетривиальных действий при определенной температуре?