BODY ADHESIVE

Abstract

The present invention relates to body adhesive formulations. In particular, body adhesives that are water resistant yet are washable and removeable by way of washing in water in accordance with the garment's manufacturers instructions. The present formulations comprise one or more water soluble polymers, one or more waterproofing agents, and glycerin in at least one volatile solvent. The preferable formulation contained Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer (Lexorez 200 MB) and VP/VA (Luviskol VA 64 P comprising an acetic acid, ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone), silica gel and isopropanol as solvent, glycerine, and Geogard ECT (Benzyl Alcohol, Salicylic Acid, Glycerin, Sorbic Acid) as preservative.

Claims

1. A cosmetic adhesive formulation for use in at least, bonding garments and fabric to the skin of a user, wherein the formulation comprises at least: Lexorez? 200 MB (Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer; VP/VA Copolymer glycerin silica isopropanol as solvent.

2. The cosmetic adhesive formulation of claim 1 wherein the formulation comprises silica between 0.2% and 10% w/w and a Trimethylpentanediol, Adipic Acid and Glycerin crosspolymer between 0.5% to 10%.

3. The cosmetic adhesive formulation of claim 2 wherein the formulation comprises silica between 1% and 6% w/w and a combination of Trimethylpentanediol, Adipic Acid and Glycerin crosspolymer between 1% to 5%.

4. The cosmetic adhesive formulation of claim 3 wherein the formulation comprises silica at around 4% w/w and a combination of Trimethylpentanediol, Adipic Acid and Glycerin crosspolymer at around 2%.

5. The cosmetic adhesive formulation of claim 4 wherein the formulation further comprises any of the following Glycerin, Phenoxyethanol, Ethylhexylglycerin, Benzyl Alcohol, Salicylic Acid, and Sorbic Acid.

6. The cosmetic adhesive formulation of claim 5 wherein the formulation further comprises VP/VA Copolymer at between 20 and 80% w/w, Glycerin between 5 and 20% w/w, Geogard ECT (Benzyl Alcohol, Salicylic Acid, Glycerin, Sorbic Acid) between 0.1% to 5% w/w, isopropanol between 0-70%% w/w.

7. The cosmetic adhesive formulation of claim 6 wherein the formulation further comprises VP/VA Copolymer at between 50 and 70% w/w, Glycerin between 5 and 20% w/w, Geogard ECT (Benzyl Alcohol, Salicylic Acid, Glycerin, Sorbic Acid) between 0.2% to 2% w/w, isopropanol between 15-60%% w/w.

8. The cosmetic adhesive formulation of claim 7 wherein the formulation further comprises VP/VA Copolymer at between 45 and 48% w/w, Glycerin at around 10% w/w, Geogard ECT (Benzyl Alcohol, Salicylic Acid, Glycerin, Sorbic Acid) at around 1% w/w, isopropanol at around 35% w/w.

9. A method of using a cosmetic adhesive of claim 1 wherein the method comprises: applying said composition to either the user's skin or fabric and forming a bond therebetween upon contacting said skin and fabric; dissolving and washing the adhesive off using water after the bond is no longer required; laundering the garment as per the manufacturer's normal instructions to remove traces of the said adhesive.

Description

BEST MODE FOR CARRYING OUT THE INVENTION

Example 1

[0023] A study involving isopropanol and various waterproofing agents was conducted. TruProtect? Sun was obtained from Trulux Pty Ltd (Australia).

[0024] All other waterproofing agents were manufactured by Inolex Chemical Company Philadelphia USA and supplied by A.S. Harrison & Co Pty Limited (Sydney Australia).

[0025] Method: 0.5 g waterproofing agent was placed in a 20 mL glass vial, and

[0026] 3.28 g isopropanol was added. The mixture was stirred vigorously by hand using a metal paddle. The following waterproofing agents were utilised: [0027] a. Lexfilm? Spray (Polyester-10 and Propylene Glycol Dibenzoate). [0028] b. Lexorez? 100 MB (Adipic Acid/Diglycol Crosspolymer). [0029] C. Lexorez? 200 MB (Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer). [0030] d. TruProtect? Sun (Polyester-7 Neopentyl Glycol Diheptanoate). [0031] e. Lexfilm? Sun Natural (Capryloyl Glycerin/Sebacic acid Copolymer).

[0032] All of the formulations were of acceptable clarity and stability but formulation (c) was the best. From this, Lexorez 200 MB was chosen for further evaluation.

[0033] Lexorez? 100 MB and Lexorez? 200 MB are proprietary formulations manufactured by Inolex Chemical Company Philadelphia USA. They are comprised of Trimethylpentanediol/Adipic Acid/Glycerin crosspolymer that differ between them by their degree of cross linking. Their preparation and use are described in U.S. Pat. Nos. 5,833,961 and 5,989,527 which are incorporated herein by way of reference.

Example 2

[0034] All of the following exemplary formulations contain VP/VA copolymer, glycerin and a preservative. Formulation 1 utilises isopropanol as a solvent. Formulation 2 contains a traditional water-soluble thickening agent (xanthan gum) but contains water as the solvent. Formulation 3 uses isopropanol as the solvent and silica as a thickening agent. Silica can thicken alcohol-based formulas without water. Moreover, Formulation 3 contains Lexorez? 200 MB (Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer) as a waterproofing agent. This was found to be soluble and stable in the ispropropanol solvent. The silica gel was capable of absorbing moisture after application, thus it functioned as a second waterproofing agent. VP/VA Copolymer referenced is Luviskol VA 64 P comprising an acetic acid, ethenyl ester, polymer with 1-ethenyl-2-pyrrolidinone, obtained from BASF. Xanthan Gum is Rheocare? XGN, obtained from BASF AG. Precipitated silica was obtained from New Directions Australia. Fumed silica can also be used at lower concentrations or a mixture of the two types of silica powder can also be substituted when silica is called for in the method set out below.

[0035] Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer (Lexorez? MB 200) was manufactured by Inolex and obtained from A.S. Harrison. Glycerin (palm-free), Phenoxyethanol/Ethylhexylglycerin and Geogard ECT (preservative) were obtained from Trulux.

[0036] Water is deionized water, prepared in-house. Isopropanol (Hypergrade for LC) was obtained from Chem Supply Pty Ltd.

TABLE-US-00001 TABLE 1 Constituents of Formulations Formu- Formu- Formu- lation lation lation 1 2 3 Constituent (g) (g) (g) VP/VA Copolymer 45 50 48 Xanthan Gum 0.2 Silica 4 Water 39 Isopropanol 44 35 Lexorez 200 MB (crosspolymer) 2 Glycerin 10 10 10 Phenoxyethanol/Ethylhexylglycerin 0.8 Geogard ECT (Benzyl Alcohol, 1 1 Salicylic Acid, Glycerin, Sorbic Acid)

[0037] Formulation 1: A 60 g batch was prepared. All ingredients were placed in a 125 ml jar and mixing by hand with metal paddle for 2 minutes. Mixture was clear after 15 hours at room temperature.

[0038] Formulation 2: A 50 g batch was prepared. VP/VA copolymer and xantham gum were dry blended in the jar with a metal paddle. The liquid ingredients were then added and mixed by hand with a metal paddle for 2 minutes. The mixture underwent a slight exotherm upon mixing. The mixture was clear after 15 hours at room temperature (See FIG. 1).

[0039] Formulation 3: A 50 g batch was prepared. VP/VA copolymer and silica were dry blended in the jar with a metal paddle. Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer (Lexorez 200 MB) and isopropanol were mixed by hand in a 125 ml jar using the metal paddle until the mixture was clear. The liquid ingredients were then added to the jar and the contents mixed by hand with a metal paddle for 2 minutes. The mixture was uniform but translucent (due to the silica gel) after 15 hours at room temperature with no settling of solids.

[0040] Table 2 provides the feedback from evaluations of the 3 example formulations. The viscosity of Example 3 leads to optimal consistency and workability. Moreover, the combination of VA/VP copolymer, silica gel and Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer leads to an optimal balance of durability, sweat and moisture resistance and ability to wash the product from skin and fabric using water.

TABLE-US-00002 TABLE 2 Feedback from panel evaluations (rating 1-51 poor to 5 very good) Formulation Formulation Formulation Category 1 2 3 Consistency 2 3 4 Application and Fabric 1 1 5 effects Dry Time 3 4 4 Workability 2 3 5 Integrity 4 5 5 Durability/Sweat 2 3 5 Resistance Removability 4 4 3 Washability 4 4 4 Allergies 5 5 5 Experience 3 3 5 Totals 30 35 45

[0041] The skilled reader appreciates that the disclosure in one example can be combined with disclosure contained in other examples to arrive at formulations that fall within the scope of the present invention.

INDUSTRIAL APPLICABILITY

[0042] The present invention has industrial applicability as a cosmetic adhesive used to bond fabric to skin. This has application in the cosmetics and apparel industries.