Ointment bases lanolin alcohols

Petrolatum and lanolin alcohols is a soft solid used in topical pharmaceutical formulations and cosmetics as an ointment base with emollient properties. It is also used in the preparation of creams and lotions. Petrolatum and lanolin alcohols can be used to absorb wound exudates. See Table I. 

Dark-brown, viscous, oily liq. Odor of burnt petroleum, A 0.970-0,980. Immiscible with water. Freely sol in ale, volatile and fixed oils. Marketed as a 17% ointment, which also contains 4% titanium dioxide in an ointment base consisting of beeswax cetyl alcohol, lanolin, and petrolatum,... 

Lanolin, wool fat, wool wax the fatty or more correctly waxy substance secreted by the skin of the sheep, m-p. 36-42°C. L constitutes up to 50% of the wei t of raw wool. It is a complicated mixture of fatty adds, alcohols, fats and waxy substances. The latter are chiefly esters of steroids (cholesterol and lanoster-ol) and long chain aliphatic alcohols with higher fatty acids, which are 6-hydroxylated or carry a terminal isopropyl or isobutyl residue. L. is obtained from raw wool by extraction with organic solvents or soap solutions. It forms water-in-oil suspensions, and is used widely in the pharmaceutical and cosmetics industries (as Adeps Lanae) as an ointment base. 

The vast majority of ophthalmic ointments are essentially lipophilic and consist of mixtures of hydrocarbons. To improve spreading over the comeal surface and mixing with the precorneal him. small amount.s of lanolin and/or lanolin alcohols, impaning to the ointment base W/0 emulsifying properties, can be added. Suspension-type hydrocarbon ointments share with their "solution-type" homologs a poor patient acceptance, mostly due to their greasiness and vi.sion-blurring effect therefore, they are preferentially applied as nocturnal medications. 

Chem. Descrip. Petrolatum, lanolin alcohol, stearyl alcohol, and stearone Uses Lubricating base, moisturizer, aux. emulsifer, stabilizer, emollient, conditioner for creams/lotions, pigmented makeup, ointments pigment dispersant ... 

Chem. Descrip. Lanolin/lanolin alcohol blend in petrolatum base Uses Primary w/o emulsifier, aux. o/w emulsifier emollienL nnoisturizer for skin and hair care prods., pharmaceutical ointments Properties Gardner < 6 solid sol. in min. oil, IPM disp. in triolein dens. 7.4 Ib/gal m.p. 4046 C flash pt. 425 F. 

Chem. Descrip. Polysorbate 80, cetyl acetate, acetylated lanolin alcohol Uses Skin/hair conditioner, sec. emulsifier, pigment wetting agent, solubilizer, emollient, humectant, superfatting agent for antiperspirants, lotions and creams, sunscreens, pharmaceuticals lubricant for topical pharmaceutical ointments Properties Amber to yel. liq., pract. odorless acid no. 2 max. sapon. no. 60-80 hyd. no. 55-70 Fancol Base C [Fanning]... 

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