Claims
- 1. A method of using an acrylic pressure sensitive adhesive, comprising the steps of:(a) adhering the acrylic pressure sensitive adhesive to a surface of a polymeric backing, and (b) adhering the acrylic pressure sensitive adhesive to a low energy surface thereby adhering the backing to the low energy surface, wherein the acrylic pressure sensitive adhesive comprises: a) about 100 parts by weight of an acrylic copolymer, said acrylic copolymer comprising from about 70-98% by weight of one or more monofunctional acrylates having nontertiary alkyl groups with between 1 and 14 carbon atoms and from about 30-2% by weight of a polar monomer; b) about 10-40 parts by weight of a tackifier; c) about 3-10 parts by weight of a plasticizer; and d) optionally, a crosslinker, wherein:(i) the acrylic pressure sensitive adhesive is applied to the backing as a water-based emulsion, and adhering the adhesive to the backing comprises removing the water from the emulsion prior to adhering the adhesive to a low energy surface; (ii) the acrylic pressure sensitive adhesive is applied to the backing as a solvent-based solution, and adhering the adhesive to the backing comprises removing the solvent from the solution prior to adhering the adhesive to a low energy surface; (iii) the acrylic pressure sensitive adhesive is applied to the backing as a UV or thermally curable syrup, and adhering the adhesive to the backing comprises curing the syrup prior to adhering the adhesive to a low energy surface; or (iv) the acrylic pressure sensitive adhesive is applied to the backing as a melt, and adhering the adhesive to the backing comprises allowing the melt to cool and solidify prior to adhering the adhesive to a low energy surface.
- 2. The method of claim 1, wherein the monofunctional acrylate is selected from the group comprising ethylenically-unsaturated higher alkyl acrylates.
- 3. The method of claim 1, wherein the polar monomer is selected from the group consisting of ethylenically-unsaturated carboxylic acids and acrylamides.
- 4. The method of claim 1, wherein the tackifier is selected from the group comprising terpene phenolics, rosins, rosin esters, esters of hydrogenated rosins, synthetic hydrocarbon resins and combinations thereof.
- 5. The method of claim 1, wherein the plasticizer is selected from the group consisting of polyglycol ethers, polyethylene oxides, phosphate esters, aliphatic carboxylic acid esters, benzoic esters, and combinations thereof.
- 6. The method of claim 1, wherein the plasticizer is selected from the group consisting of sulfonamides, aromatic carboxylic acid esters, and combinations thereof.
- 7. The method of claim 1, wherein the polymeric backing comprises a material selected from the group consisting of vinyl films, woven and nonwoven sheets, woven and nonwoven fabrics, papers and retroreflective sheeting.
- 8. The method of claim 1, wherein the low energy surface is a high density polyolefin.
- 9. The method of claim 8, wherein the high density polyolefin is a high density polyethylene or a high density polypropylene.
- 10. The method of claim 1 wherein the low energy surface is selected from the group consisting of polypropylene and polyethylene.
Parent Case Info
This is a continuation of application Ser. No. 08/664,730 filed Jun. 17, 1996, now U.S. Pat. No. 5,874,143 which is a continuation of prior application Ser. No. 08/606,988 filed on Feb. 26, 1996 now abandoned.
US Referenced Citations (19)
Foreign Referenced Citations (4)
Number |
Date |
Country |
0 645 439 A2 |
Mar 1995 |
EP |
5-105856 |
Apr 1993 |
JP |
WO 9306184 |
Apr 1993 |
WO |
WO 9306182 |
Apr 1993 |
WO |
Non-Patent Literature Citations (2)
Entry |
Patent Abstracts of Japan—63215787. |
Patent Abstracts of Japan—60166366. |
Continuations (2)
|
Number |
Date |
Country |
Parent |
08/664730 |
Jun 1996 |
US |
Child |
09/248946 |
|
US |
Parent |
08/606988 |
Feb 1996 |
US |
Child |
08/664730 |
|
US |