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US5147676A Expired / Lapsed US ⏱️ 0.0 years remaining

Blends of non-lauric coating fats and liquid, trans-hardened high stability oils with high rancimat induction period values and coatings and food products obtained therefrom

Assignee: Unilever Patent Holdings BV
•
Filing: 1991-06-14
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Granted: 1992-09-15
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Expires: 2011-06-14
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Abstract

Abstract Blends of mid-fractions and olein fractions of the wet-fractionation of hardened soybean oil and optionally hardened palm oil olein and/or hardened cottonseed oil containing fat mixtures show improved Rancimat Induction Period (RIP) values.

Inventors

  • 👤 Geoffrey Talbot

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 13:16
CPC Classifications
A; A23; A23G; A23G1/00; A23G1/30; A23G1/305; A23D; A23D9/00; A23G3/00; A23G3/34; A23G3/343; C; C11; C11B; C11B7/00; C11B7/0008; C11B7/0025; C11C; C11C3/00; C11C3/12; C11C3/123; A23G2200/00; A23G2200/08

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 77 words
A blend of (I) non-lauric coating fats comprising a mid-fraction of the wet fractionation of fat mixtures containing hardened soybean oil and (II) liquid, trans-hardened high-stability oils comprising the olein-fraction of the wet fractionation of mixtures containing soybean oil, wherein the weight ratio of I:II ranges from 90:10 to 70:30 and wherein the Rancimat Induction Period value of the blend is more than calculated from the Rancimat Induction Period values of the individual components of the blend.
Claim 2
Dependent Claim 77 words
A blend of (I) non-lauric coating fats comprising a mid-fraction of the wet fractionation of fat mixtures containing hardened soybean oil and (II) liquid, trans-hardened high-stability oils comprising the olein-fraction of the wet fractionation of mixtures containing soybean oil, wherein the weight ratio of I:II ranges from 90:10 to 70:30 and wherein the Rancimat Induction Period value of the blend is more than calculated from the Rancimat Induction Period values of the individual components of the blend.
Claim 3
Dependent Claim 33 words
A blend according to claim 1, wherein the mixture containing hardened soybean oil also comprises at least one member from the group consisting of hardened, wet-fractionated palm oil olein and hardened cottonseed oil.
Claim 4
Dependent Claim 50 words
A blend according to claim 2, wherein the mixture containing hardened soybean oil comprises at least one member from the group consisting of hardened, wet-fractionated palm oil olein and hardened cottonseed oil in an amount such that the weight ratio of hardened soybean oil: said member is 90:10 to 10:90.
Claim 5
Dependent Claim 26 words
A blend according to claim 1, wherein the liquid, trans-hardened, high-stability oils (II) are olein fractions of the wet fractionation of mixtures containing hardened soybean oil.
Claim 6
Dependent Claim 31 words
A blend according to claim 4, wherein the mixtures containing hardened soybean oil also comprise a member of the group consisting of hardened, wet-fractionated palm oil olein and hardened cottonseed oil.
Claim 7
Dependent Claim 24 words
A blend according to claim 1 wherein the components (I) and (II) originate from the same wet fractionation of mixtures containing hardened soybean oil.
Claim 8
Dependent Claim 24 words
A blend according to claim 1 wherein the components (I) and (II) originate from a different wet fractionation of mixtures containing hardened soybean oil.
Claim 9
Dependent Claim 16 words
A blend according to claim 1 wherein the ratio of I:II ranges from 90:10 to 80:20.
Claim 10
Dependent Claim 32 words
A blend according to claim 1 wherein (I) has a relatively low Rancimat Induction Period value and (II) has a Rancimat Induction Period value of more than 50 hours at 120° C.
Claim 11
Dependent Claim 13 words
A blend according to claim 1 wherein the ratio of I:II is 80:20-70:30.
Claim 12
Dependent Claim 86 words
Process for the preparation of a blend of non-lauric coating fats and liquid, trans-hardened, high-stability oil, wherein soybean oil or soybean oil mixed with a least one member of the group consisting of wet-fractionated palm oil olein and cottonseed oil, is hardened catalytically, whereupon the hardened product is wet-fractionated and separated into a hard stearin fraction, a mid-fraction and an olein fraction after which the mid-fraction as non-lauric coating fat is blended with part of an olein fraction from the same or a different wet fractionation.
Claim 13
Dependent Claim 86 words
Process for the preparation of a blend of non-lauric coating fats and liquid, trans-hardened, high-stability oil, wherein soybean oil or soybean oil mixed with a least one member of the group consisting of wet-fractionated palm oil olein and cottonseed oil, is hardened catalytically, whereupon the hardened product is wet-fractionated and separated into a hard stearin fraction, a mid-fraction and an olein fraction after which the mid-fraction as non-lauric coating fat is blended with part of an olein fraction from the same or a different wet fractionation.
Claim 14
Dependent Claim 15 words
Process according to claim 11, wherein the hardening is carried out with a sulphided Ni-catalyst.
Claim 15
Dependent Claim 29 words
Process according to claim 12, wherein the wet fractionation is carried out with acetone in a ratio of more than 3 volume units acetone per weight unit of oil.
Claim 16
Dependent Claim 16 words
Chocolate coatings having an improved oxidation stability, which contain a fat blend according to claim 1.
Claim 17
Dependent Claim 10 words
Food products containing a chocolate coating according to claim 14.

References Cited (Backward Citations)

GB867615A Cited
GB1219245A Cited
US3856831A Cited
US4061798A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-09-15 1996-03-16 1996-09-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-09-15 2000-03-16 2000-09-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-09-15 2004-03-16 2004-09-15 $7700.00 Window Closed / Lapsed

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