WO1990014819A1

WO1990014819A1 - An ointment

Info

Publication number: WO1990014819A1
Application number: PCT/SE1990/000358
Authority: WO
Inventors: Erik Arne Persson
Original assignee: MEKOFE AB
Current assignee: MEKOFE AB
Priority date: 1989-06-01
Filing date: 1990-05-28
Publication date: 1990-12-13
Anticipated expiration: 1991-12-01
Also published as: AU5858590A; SE8902002L; SE8902002D0

Abstract

The invention relates to a composition which will function as an ointment, salve, unguent or like product and which contains an oil product, particularly a lubricating oil product, in a proportion of at least 50 % by volume, and at least the major part of the remaining part of the composition comprises a viscosity-enhancing mixture. The viscosity-enhancing mixture comprises at least substantially tallow and zink-white, with the proportion of tallow exceeding the proportion of zink-white. The ointment is effective to heal sores and to prevent crack formations in hooves and foot pads.

Description

TITLE OF THE INVENTION! AN OINTMENT

TECHNICAL FIELD

The present invention relates to a composition which will serve as an ointment, a salve , an unguent or the like , and particularly, but not exclusively to an ointment-like composition which includes at least 50% by volume of a low-viscous oil product, particularly a lubricating oil product, and at least the major part of the remainder of which comprises a viscosity-enhancing mixture .

The composition is primarily intended for use as a healing ointment for application to sores on animals and human beings , but is also suitable for use in other applications . For instance , the composition can be used as a protective ointment and is applied in a thin film or a thin layer over those parts to be protected, so as to counteract and/or heal fissures or like crack forma¬ tions on hooves and feet pads .

B ACKSRQVNP ART

It is known to use low-viscosity oils as ointments , salves , unguents or l iniments , etc, and it is also known to adapt the consi stency , viscosity^and composition of such ointment. The ingredients of the ointment have been adap¬ ted either to selected, particular applications and environments, or to a more general use, preferably within mutual ly diffe.rent environments . It is al so known to mix a viscosity-enhancing substance with oil products of low viscosity , so as to form a highly viscous composition .

Thus it is known through the publ ication Svenska Farmakopen (Stockholm, Sweden 1931 ,) page 496 , a composition using vasel ine, lanoline and zinc oxide. In the publ ication Svensk Medicinsk Uppslagsbok 1965 , page 1017 it is known a composition containing vasel ine , lanol ine and 10% zinc oxide.

A process for producing a medicated ointment is previously known through the publ ication W088/07364 and GB-A-1 106 348. It is also known that ointments have obtained a general use within regions where water is present, in larger or smaller quantities.

SUMMARY OF THE INVENTION

TECHNICAL PROBLEMS

When considering the state of the prior art as des¬ cribed above, it will be seen that a technical problem resides in the ability to provide an ointment composi¬ tion on the basis of an oil product of relatively low viscosity and possessing well-defined, known proper- ties, and to increase the viscosity towards a grease- consistency, by admixing the oil product with a vis¬ cosity-enhancing mixture, and also in selecting the proportions in which the different ingredients are present in said mixture in a manner such that the prop- erties of the oil product can be utilized in beneficial combination with the properties of the viscosity- enhancing mixture.

It will also be seen that a technical problem is one of realizing that from all available low-viscosity oil products at least one category has shown itself to be particularly suited as a main ingredient in an ointment or like product, such as to afford good adhesion, good lubrication and good protective properties, even in a highly viscous state.

It will also be seen that a technical problem resides in realizing that from all available low-viscosity oil products at least one category can be used as a main ingredient which, when admixed with a particularly consistency friendly to the skin.

It will be seen that a more qualified technical problem is one of realizing that such a composition will afford a healing effect, at least with respect to skin injuries and to certain skin complaints.

A further qualified technical problem is one of realiz¬ ing that a composition having one or more of the afore- said technical effects will also have a healing effect on animals, such as the hocks of horses and like quadrupeds.

It will also be seen that a technical problem is one of providing an ointment which is not only effective to heal sores on animals but also on human beings and also which will counteract and heal the formation of cracks on hooves and feet pads.

Another technical problem is one of realizing that a special composition proposed in accordance with the invention will give clinically established healing results when applied to inflamed sores, and even to sores which are highly inflamed.

Similarly, a technical problem is one of realizing that such an ointment can also be used as a lubricant in mechanical bearings and as a corrosion preventing agent.

For the purpose of solving one or more of the aforesaid technical problems, it is surprising that such a solu¬ tion can be readily obtained solely by mixing the oil product in a particular manner with tallow and zink- white, optionally together with a filler and in such white, optionally together with a filler and in such case in a small quantity.

It will be seen that a technical problem is one of realizing that the proportion of tallow should, normally, exceed the proportion of zink-white.

It will also be seen that a technical problem is one of _^realizing that the proportion of tallow should exceed the proportion of zink-white by a predetermined factor, selected from well-defined ranges.

It will also be seen that a technical problem is one of realizing that the aforesaid good properties can be obtained with a composition in which the•proportion of oil product is 60-75% by volume, the proportion of tallow is 8-22% by volume and the proportion of zink- white is 8-15% by volume, and the proportion of filler is preferably less than 15%, preferably less than 5%.

Another technical problem is one of realizing the ad¬ vantages that can be gained when the oil-product con¬ tent of the composition comprises an oil which posses¬ ses good adhesion properties and good water-separation properties, such as steam-cylinder oil, having a vis¬ cosity of between 10,000 and 3,000 σSt at room tempera¬ ture, and to realize the advantage that is gained when the tallow proportion comprises sheep tallow.

It will also be seen that a technical problem is one of realizing that in preparing the composition, the oil product shall be heated to a temperature which provides a viscosity within predetermined limit values, and that the tallow proportion and oil-product proportion must be heated to a temperature of preferably less than 100°C for the oil product, so that the oil product and the tallow proportion can be mixed together effectively while stirring.

It will also be seen that a technical problem is one of realizing the necessity of reheating the resultant mixture of heated oil product and heated tallow to a temperature of at least twice the temperature of the .mixture prior to adding the zink-white while stirring the mixture, whereafter the total mixture must be heated still further before allowing the mixture to cool while stirring.

It will be seen that a technical problem is one of realizing that the oil product, in the form of cylinder oil should be heated to about 70°C, whereas the sheep- tallow proportion should be heated to about 95^βC prior to mixing said two ingredients together.

It will also be seen that a technical problem is one of realizing the importance that this mixture of oil pro¬ ducts and sheep tallow must be heated further to a temperature slightly above 200°C, prior to adding the zink-white.

It will also be seen that a technical problem is one of realizing that the temperature of the mixture must be raised by at most 50°C subsequent to adding the zink-white.

Finally, another technical problem is one of realizing that the thus heated mixture while stirring shall be allowed to cool to a temperature somewhat beneath 45°C, say about 38°C, before sealing the mixture in a storage vessel intended therefor. SOLUTION

The present invention relates to a composition which will function as an ointment, salve, unguent or the like and which includes an oil product, particularly a ubricating oil product present in a proportion of at least 50% by volume, with the remaining proportion, or at least the major part of said remaining proportion comprising a viscosity-enhancing mixture or composition.

In accordance with the invention, it is suggested that the viscosity-enhancing mixture comprises, at least substantially, tallow and zink-white, with the propor¬ tion of tallow being greater than the proportion of zink-white.

As suggested embodiments within the scope of the inven¬ tive concept, it is proposed that the tallow proportion approximately exceeds the zink-white proportion by a factor of two, say by a factor of between 1.5 and 2.5.

The proportion of oil products shall comprise 60-70% by volume, the tallow proportion 8-22% by volume and the zink-white proportion 8-15% by volume.

It is proposed that the oil-product proportion will preferably comprise an oil which exhibits good adhesion properties and good water-separation properties, and that the tallow proportion comprises sheep tallow. It is particularly proposed that the oil product used is so-called steam cylinder oil. The invention also relates to a method of preparing a composition adapted as an ointment and the main ingredient of which includes at least 50% by volume of an oil product and the remaining part of which, or at least the major part of said remaining part comprises a viscosity-enhancing mixture of tallow and zink-white.

.The invention proposes a particular mixing and tempera- ture schedule, in which the oil product is heated to a temperature of between 60°C and 100°C, such as to ob¬ tain a viscosity of between 100 and 250 cst, in which the tallow proportion is also heated, in which the oil product and tallow proportion are mixed and heated, while stirring, to at least double the temperature or to a temperature above 180°C for the mixture, and in which zink-white is then added while stirring and the mixture is heated further, whereafter the mixture is allowed to cool while stirring.

As proposed embodiments within the scope of the inven¬ tion, the inventive method proposes that the oil pro¬ duct shall be heated to about 70°C and the tallow pro¬ portion heated to about 95°C, before being mixed while stirring.

Subsequent to having mixed the heated oil product and heated sheep's tallow the resultant mixture is further heated immediately to about 220°C, whereafter zink- white is added. Subsequent to adding zink-white, the mixture is heated to about 250°C.

The thus heated mixture is allowed to cool and it is proposed that when introduced into a storage vessel, the mixture will have a temperature of less than 45^°C, say about 38 ° C .

ADVANTAGES

Those advantages primarily associated with a composi¬ tion functioning as an ointment or similar composition as before described, in accordance with the invention, -reside in the provision of an ointment, etc., which has very good adhesion properties and which can therewith be used suitably in moist environments.

Furthermore, the inventive ointment, salve, etc, is very friendly to the skin and has been found to have infection-healing properties.

The primary characteristic features of a composition which functions as an ointment in accordance with the present invention are set forth in the characterizing clause of the following Claim 1, while the primary characteristic features of a method for preparing such a composition are set forth in the characterizing clause of the following Claim 5.

DESCRIPTION OF EMBODIMENTS AT PRESENT PREFERRED

The present invention relates to a composition which functions functions as an ointment, a salve, -an unguent or similar product and which shall include a low-vis¬ cosity oil product, particularly a lubricating oil product, in a proportion of at least 50% by volume, and at least the major part of the remaining part of said composition comprises a viscosity-enhancing mixture.

In accordance with the invention, the viscosity- enhancing mixture shall comprise at least substantially of tallow and zink-white, with the tallow proportion somewhat exceeding the zink-white proportion.

As a first example of such a composition, it is pro¬ posed that the proportion of oil-products present is 60-75% by volume, the tallow proportion is 18-22% by volume and the zink-white proportion is 8-15% by vol¬ ume.

In a second example, it is proposed that the oil pro¬ ducts are present in a proportion of 65-70% by volume, the tallow proportion is 19-20.5% by volume, and the zink-white proportion is 10-13.5% by volume.

It may be appropriate in certain applications to add a small proportion of filler, such as rose oil, in an amount corresponding approximately to two drops per litre. The filler should be added during the cooling sequence.

It is proposed that the oil product is a steam cylinder oil sold by TEXACO under reference "650 T Cylinder Oil 1000%, that the tallow is sheep tallow, and that the zink-white is a commercially available zink-white designated "green seal".

In accordance with a third example, it is proposed that the oil product is present in a proportion of about 67% by volume, that the sheep tallow is present in a pro- portion of 19% by volume and that the zink-white is present in a proportion of 14% by volume.

The invention also relates to a method of preparing a composition adapted for use as an ointment or like preparation and including at least 50% by volume of an oil product and at least the major part of the remain¬ ing part of which composition comprises a viscosity- -enhancing mixture of tallow and zink-white.

It is proposed that the oil product is heated to a temperature of about 70°C, so as to obtain a viscosity of between 100 and 250 set.

The tallow proportion, preferably sheep tallow, is heated separately. There is nothing to prevent the sheep tallow proportion from being heated to a tempera¬ ture slightly above the temperature of 70°C of the oil product, say to a temperature of 95^βC. The heated oil product and the heated tallow proportion are mixed while being rigorously stirred, and are heated to at least twice the temperature of the mixture, say to a temperature of 220^βC.

Zink-white is then added while stirring, and the resul¬ tant mixture is further heated, say to a temperature of 250^βC, and is maintained at this temperature for a short duration. This duration is normally at most 10 minutes, normally about 5 minutes, whereafter the mix- ture is allowed to cool while stirring.

Naturally, the mixture can be cooled with the aid of induced cooling. The resultant composition shall be introduced into suitably containers or vessels at a temperature of about 38°C. It should be noted that in this particular case the temperature of the composition should not be above 41°C when introducing said composition into a storage vessel or container. The composition then soli¬ difies to grease consistency at room temperature.

it should be emphasized that the proposed ointment-like composition can also be used as a lubricating grease and as an anti-corrosion agent.

The filler is preferably introduced during the cooling process. The filler can be added within the aforesaid temperature limits, depending on the structure, eva¬ poration point, etc. of the filler. The filler is pre¬ ferably introduced at a temperature beneath 100°C.

It will be understood that the invention is not res- tricted to the aforedescribed exemplifying embodiments and that modifications can be made within the scope of the inventive concept illustrated in the following Claims.

The composition now described can also be used as lubricant in bearings, especially slide bearings in water. The composition can also be used as a protecting layer for eliminating or reducing rust or other oxides on iron or steel products.

Claims

£L&ffi_3

1. A composition which will function as an ointment, salve, unguent, or the like and which includes an oil product, particularly a lubricating oil product, in a proportion of at least 50% by volume, and at least the major part of the remaining part of the composition comprises a viscosity-enhancing mixture, c h a r a c t β r i z e d in that the viscosity-enhancing mixture comprises at least substantially tallow and zink-white, with the tallow proportion exceeding the zink-white proportion.

2. A composition according to Claim 1, σ h a r a c - t e r i z e d in that the tallow proportion exceeds the zink-white proportion by a factor of approximately t o.

3. A composition according to Claim 1 or 2, c h a r - a c t e r i z e d in that the proportion of oil pro¬ ducts is 60-70% by volume, the tallow proportion is 18-22% by volume and the zink-white proportion is 8-15% by volume.

4. A composition according to Claim 1, c h a r a c ¬ t e r i z e d in that the oil-product proportion com¬ prises an oil which exhibits good adhesion properties and good water-separation properties, and in that the tallow proportion comprises sheep's tallow.

5. A method of preparing a composition which functions as an ointment and which includes at least 50% by vol¬ ume of an oil product and in which at least the major part of the remaining part of the composition comprises at viscosity-enhancing mixture of tallow and zink-white, c h a r a c t e r i z e d by heating the oil product to a temperature at which the viscosity of the product is between 100 and 250 cSt, heating the tallow proportion to a temperature of 60°-100°c, mixing the oil product and the tallow proportion together while stirring and heating to a temperature which is at least twice the temperature of the mixture, and subse¬ quently adding zink-white while stirring and heating Jthe mixture still further, and permitting the mixture to cool while stirring.

6. A method according to Claim 5, c h a r a c ¬ t e r i z e d by heating the oil-product proportion to about 70^βC and by heating the tallow proportion to about 95°C before mixing said proportions together while stirring.

7. A method according to Claim 5 and 6, c h a r a c ¬ t e r i z e d by heating the resultant mixture of oil product and sheep-tallow proportion to a temperature of about 220°C.

8. A method according to Claim 5 or 7, c h a r a c ¬ t e r i z e d by heating the mixture to about 250°C subsequent to adding zink-white.

9. A method according to Claim 5, c h a r a c ¬ t e r i z e d by introducing the mixture into a stor¬ age container at a temperature somewhat beneath 38°C, say about 38°C.