Appeal No. 1998-0787
Application No. 08/491,769
phase crystals into beta prime crystals in the
cooled emulsion;
(7) passing the beta prime containing cooled emulsion
into a second scraped surface heat exchange unit to
cool the emulsion;
(8) recirculating the beta prime containing cooled
emulsion from step (7) into the partially
crystallized emulsion of step (5) as the partially
cooled crystallized emulsion exits the scraped
surface heat exchanger unit and passes int [sic,
into] the crystallizing unit of step (6) to
introduce crystal seeds into the partially
crystallized emulsion;
wherein the throughput of the emulsion throughout
the entire production line is x kilograms per hour, the
shortened residence time of the emulsion in the crystal-
lizing unit (C-unit) is y minutes and the recirculation
flow rate of the emulsion recirculated into the cooled
partially crystallized emulsion of step (8) is 0.2 x to
10 x; and
(9) packing the fat continuous spread to form a fat
continuous product having less than 80% fat, less
than 10% trans fatty acid, less than 5% free water
and the product is not brittle due to post storage
crystallization.
The examiner relies upon the following references as
evidence of obviousness:
Havenstein, deceased et al. 5,374,445 Dec. 20, 1994
(Havenstein) (filed Nov. 19, 1992)
Wheeler et al. (Wheeler) 5,407,6795 Apr. 18, 1995
(Mar. 13, 1992)
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