The olefin may be, for example, 1- decene, 1-dodecene, or 1-tetradecene.

Disodium salt of the product formed by the reaction of disulfonated diphenyl ether with .alpha.-decene

5, 9-dimethyl-9-hydroxy-decen-4-al, having the formula (I).

Or 2,6-exo-tricyclo[5.2.1.02,6]decene-8 can be hydroformylated and also optionally brought into equilibrium.

The invention relates to a polyalphaolefin formed from a decene and propene and having a branch level greater than 19 % and to a process for forming such polyalphaolefins.

Elimax® Lotion and Elimax® Shampoo are two effective treatment products based on oligodecene oil and LPF®.

Oligomers of C6-C20 alpha-olefins, such a 1-decene, with branch ratios below 0.19 and high viscosity indices (HVI) can be functionalized to provide unique phosphate derivatives.

After 10 minutes shaking in a boiling water bath, a tube of sulphuric acid with a 5 g sample of hydrogenated poly-1-decene is not darker than a very slight straw colour

Additionally, the comonomers may be selected from mono-1-olefins having 4 to 10 carbon atoms, such as, 1 -hexene, 1 -butene, 4methyl- l-pentene, 1-octene, and 1-decene.

Alternatively, the enriched epimer mixture can be prepared starting from 8-formyl-2,6-exo-tricyclo[5.2.1.02,6]decene-3(4), catalytically hydrogenated for example with palladium coal and then optionally brought into equilibrium.

The poly alpha-olefin is prepared from an olefin feed comprised of a blend of octene, decene, and dodecene, the feed comprising at least 10 weight % octene and at least 30 weight% dodecene.

with ethylene, propylene, 1-butene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, 1-decene or 1-eicosene, or mixtures thereof,