US4659573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral oil substitute for toiletries and cosmetics
Assignee: PNC Bank NA
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Filing: 1985-02-14
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Granted: 1987-04-21
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Expires: 2005-02-14
Abstract
Abstract This invention relates to a substitute for mineral oil in toiletry and cosmetics. In particular it relates to blends of esters which match the viscosity and feel of mineral oil. Specifically, it relates to ester blends which include tridecyl trimellitate. Tridecyl trimellitate ("TDTM") is the ester of tridecyl alcohol and trimellitic acid, and has recently been offered for use to the cosmetics industry. It has surprisingly been found that by blending tridecyl trimellitate with other esters, the viscosity and feel of mineral oil can be matched, the resulting product being a substitute for mineral oil in toiletry and cosmetic compositions.
Inventors
- 👤 Louis B. Frischling
- 👤 Stephen M. Greenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:20
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/37; A61K8/375; A61Q; A61Q19/00; A61Q19/10; A61Q9/00; A61Q9/02
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
59 words
An ester blend suitable for use as a mineral oil substitute in cosmetics and toiletries comprising tridecyl trimellitate blended with at least one additional ester selected from the group consisting of dipentaerythritol hexacaprylate/hexacaprate, tridecyl stearate and neopentyl glycol dicaprylate/dicaprate, said blend comprising about 5 to about about 85 wt. % tridecyl trimellitate based on the weight of the blend.
Claim 2
Dependent Claim
59 words
An ester blend suitable for use as a mineral oil substitute in cosmetics and toiletries comprising tridecyl trimellitate blended with at least one additional ester selected from the group consisting of dipentaerythritol hexacaprylate/hexacaprate, tridecyl stearate and neopentyl glycol dicaprylate/dicaprate, said blend comprising about 5 to about about 85 wt. % tridecyl trimellitate based on the weight of the blend.
Claim 3
Dependent Claim
33 words
The ester blend according to claim 1 wherein two additional esters are blended with the tridecyl trimellitate and each additional ester is incorporated into the blend at about 2 to about 60 wt%.
Claim 4
Dependent Claim
17 words
The ester blend according to claim 1 where three additional esters are blended with the tridecyl trimellitate.
Claim 5
Dependent Claim
42 words
The ester blend according to claim 2 wherein the two additional esters are tridecyl stearate (TDS) incorporated into the blend at about 5 to about 55 wt% and neopentylglycol dicaprylate/dicaprate (NPGC) incorporated into the blend at about 2 to about 55 wt%.
Claim 6
Dependent Claim
42 words
The ester blend according to claim 4 wherein the TDTM is utilized at about 10 to about 14 wt%, the TDS is utilized at about 40 to about 50 wt% and the NPGC is utilized at about 40 to about 50 wt%.
Claim 7
Dependent Claim
57 words
The ester blend according to claim 5 wherein the TDTM is utilized at about 11 to about 13 wt% based on the ester blend, the TDS is utilized at about 42 to about 46 wt% based on the ester blend, and the NPGC is utilized at about 42 to about 46 wt% based on the ester blend.
Claim 8
Dependent Claim
20 words
The ester blend according to claim 2 wherein the two additional esters are tridecyl stearate (TDS) and dipentaerythritol hexacaprylate/hexacaprate (DPHC).
Claim 9
Dependent Claim
51 words
The ester blend according to claim 7 wherein the TDTM is utilized at about 33 to about 38 wt% based on the ester blend, the TDS is utilized at about 40 to about 50 wt% based on the blend, and the DPHC is utilized at about 12 to about 25 wt%.
Claim 10
Dependent Claim
36 words
The ester blend according to claim 8 wherein the TDS is utilized at about 42 to about 46 wt% and the DPHC is utilized at about 16 to about 20 wt% based on the ester blend.
Claim 11
Dependent Claim
19 words
The ester blend according to claim 9 wherein the DPHC is utilized at about 17 to about 19 wt%.
Claim 12
Dependent Claim
17 words
The ester blend according to claim 3 wherein the three additional esters are TDS, DPHC and NPGC.
Claim 13
Dependent Claim
62 words
The ester blend according to claim 11 wherein the TDTM is utilized at about 38 to about 42 wt% based on the ester blend, the TDS is utilized at about 5 to about 20 wt%, the NPGC is utilized at about 2 to about 10 wt% and the DPHC is utilized at about 40 to about 55 wt% based on the blend.
Claim 14
Dependent Claim
24 words
The ester blend according to claim 12 wherein the TDS is utilized at about 5 to about 12 wt% based on the ester blend.
Claim 15
Dependent Claim
24 words
The ester blend according to claim 13 wherein the TDS is utilized at about 6 to about 9 wt% based on the ester blend.
Claim 16
Dependent Claim
16 words
The ester blend according to claim 12 wherein the NPGC is utilized at about 3-5 wt%.
Claim 17
Dependent Claim
21 words
The ester blend according to claim 12 wherein the DPHC is utilized at about 42-52 wt% based on the ester blend.
Claim 18
Dependent Claim
19 words
The ester blend according to claim 16 wherein the DPCH is utilized at about 46 to about 50 wt%.
Claim 19
Dependent Claim
57 words
The ester blend according to claim 12 wherein the TDS is utilized at about 6 to about 9 wt% based on the ester blend, the NPGC is utilized at about 3 to about 5 wt% based on the ester blend, and the DPHC is utilized at about 46 to about 50 wt% based on the ester blend.
Claim 20
Dependent Claim
41 words
In a toiletry or cosmetic product having as a constituent thereof mineral oil, the improvement which comprises substituting for the mineral oil, the ester blend according to claim 1, said ester blend having substantially the same viscosity as the mineral oil.
References Cited (Backward Citations)
US3682694A
Cited
US3957854A
Cited
US3981838A
Cited
US4338431A
Cited
US4275189A
Cited
US4370319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |