Compound, adhesive article, and methods of making the same
A method of making an adhesive article comprises three steps. First, a backing is provided having first and second opposed major surfaces with respective first and second silicone release layers disposed thereon. The second silicone release layer further comprises organic solvent and a compound represented by the formula: R 1 represents a monovalent, divalent, or trivalent hydrocarbon radical having from 2 to 40 carbon atoms or covalent bond. R f represents a perfluorinated group having from 3 to 5 carbon atoms. X 1 represents —NH— or a covalent bond. Second, an adhesive layer is disposed onto the first silicone release layer. Third, the adhesive layer is exposed to E-beam radiation within a process chamber containing oxygen to provide a crosslinked adhesive layer. An adhesive article made by the method and the compound are also disclosed.
1. A method of making an adhesive article, the method comprising:
providing a backing having first and second opposed major surfaces, wherein a first silicone release layer is disposed on the first major surface, wherein a second silicone release layer is disposed on the second major surface, and wherein the second silicone release layer further comprises a compound represented by the formula:
wherein
R 1 represents a hydrocarbyl group having from 2 to 40 carbon atoms;
R f represents a perfluorinated group having from 3 to 5 carbon atoms;
X 1 represents —NH— or a covalent bond; and
an amount of organic solvent sufficient to dissolve at least a portion of the compound in the second silicone release layer;
disposing an adhesive layer onto the first silicone release layer; and
exposing at least the adhesive layer to electron beam radiation within a process chamber thereby providing a crosslinked adhesive layer, wherein the process chamber contains oxygen, wherein the second silicone release layer is exposed to the oxygen during crosslinking of the adhesive layer.
2. The method of claim 1 , wherein the electron beam radiation is directed from opposing directions at both the adhesive layer and the second silicone release layer, respectively.
3. The method of claim 1 , further comprising winding the crosslinked adhesive layer onto the second silicone release layer.
4. The method of claim 1 , wherein the crosslinked adhesive layer is a pressure-sensitive adhesive layer.
5. An adhesive article made according to the method of claim 3 .
6. An adhesive article comprising:
a backing having first and second opposed major surfaces, wherein a first silicone release layer is disposed on the first major surface, wherein a second silicone release layer is disposed on the second major surface, and wherein the second silicone release layer further comprises a compound represented by the formula:
wherein
R 1 represents a hydrocarbyl group having from 2 to 40 carbon atoms;
R f represents a perfluorinated group having from 3 to 5 carbon atoms;
X 1 represents —NH— or a covalent bond; and
an adhesive layer sandwiched between the first and second silicone release layers.
7. The adhesive article of claim 6 , wherein R f is perfluorobutyl.
8. The adhesive article of claim 6 , wherein R 1 has 6 carbon atoms and is aromatic.
9. The adhesive article of claim 6 , wherein R 1 has from 2 to 12 carbon atoms.
10. The adhesive article of claim 6 , wherein the adhesive layer is a pressure-sensitive adhesive layer.