Appeal No. 94-0591
Application 07/755,610
or a C to C ’acid, and R may be a C " or C "’ acid.12 18 3 18 18
Preferably, R may be a C to C acid, and R a C to18 6
1 12 2 12
C ’ acid.
18
C ’,C " and C "’represent the number of double18 18 18
bonds in the fatty acid moiety being one, two and three
double bonds respectively.
The medium chain triglycerides may be lauric oils
such as, balassee oil, coconut oil, cohune oil, palm
kernel oil, tucum oil and fractions thereof. The
preferred medium chain triglyceride oil is coconut oil.
The long chain triglycerides may be polyunsaturated
vegetable oils such as, corn oil, peanut oil, safflower
oil, soybean oil, sunflower seed oil, and fish oil. The
preferred long chain triglyceride oils are safflower oil,
soybean oil, and sunflower seed oil.
Preferably, the percent composition of mixtures of
medium chain triglycerides to long chain triglycerides
of this invention may be 70 to 30%, 80 to 20%, 85 to 15%,
or 90 to 10%. The 80 to 20%, and the 85 to 15% mixtures
are most preferred.
4. Discussion
Whether the long-chain fatty acids which form the lipid
phase of the lipid emulsions described by Bilton are present in
the lipid phase as long-chain fatty acids or as triglyceride
derivatives of long-chain fatty acids, the vegetable and animal
oils employed are “rich in polyunsaturated, long-chain fatty
acids” (Bilton, p. 4, final para.). Bilton’s disclosure would
have led persons having ordinary skill in the art away from
emulsions wherein essential fatty acids constitute no more than
15-45% of the total fatty acids in the lipid phase of the lipid
emulsion. Bilton’s “preferred oils possess an unsaturated fatty
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