FOIL TAPE
An adhesive tape includes a foil layer and an adhesive layer. The adhesive tape satisfies the physical test requirements of the UL 181A foil tape specification.
1 . An adhesive tape, comprising:
a first layer comprising a foil;
a second layer comprising an adhesive, the adhesive comprising:
a styrenic block copolymer approximately in a range of about 33.8% to about 55.5% of the total weight percentage of the adhesive;
an adhesion promoter approximately in a range of about 1.1% to about 1.5% of the total weight percentage of the adhesive;
an endblock modifier approximately in a range of about 7% to about 10% of the total weight percentage of the adhesive; and
a tackifier approximately in a range of about 20% to about 40% of the total weight percentage of the adhesive.
2 . The tape of claim 1 , wherein a styrene of the styrenic block copolymer is approximately in a range of about 15% to about 20.5% of the total weight percentage of the styrenic block copolymer and a di-block of the styrenic block copolymer is approximately in a range of about 25% to about 75% of the total weight percentage of the styrenic block copolymer.
3 . The tape of claim 1 , wherein the a styrene of the styrenic block copolymer has a composition of 17.2% of the total weight percentage of the styrenic block copolymer and a di-block of the styrenic block copolymer has a composition of 72.8% of the total weight percentage of the styrenic block copolymer.
4 . The tape of claim 1 , wherein the tape is UL181A certification compliant.
5 . The tape of claim 1 , wherein the tape has an adhesion to steel of greater than 60 oz/inch, a shear adhesion at room temperature under a ten-pound load of greater than 120 hours while having less than 1/32-inch slip, and a shear adhesion at 150 degrees Fahrenheit under a five-pound load of greater than six hours while having less than 1/32-inch slip.
6 . The tape of claim 1 , wherein the adhesion promoter comprises one or more a phenolic resin or a thermoplastic alkylphenolic resin.
7 . The tape of claim 6 , wherein the end-block modifier comprises one or more aromatic hydrocarbon resins.
8 . The tape of claim 1 , wherein the tackifier includes one or more modified aliphatic hydrocarbon resins.
9 . The tape of claim 8 , wherein the tackifier includes Escorez 2203 in about 28.4% of the total weight percentage of the adhesive and Piccotex 100 in about 2.87% of the total weight percentage of the adhesive.
10 . The tape of claim 8 , further comprising one or more additives including an oil approximately in a range of about 1.5% to about 2.5% of the total weight percentage of the adhesive.
11 . The tape of claim 1 , wherein the one or more additives includes an antioxidant approximately in a range of about 0.45% to about 0.7% of the total weight percentage of the adhesive.
12 . The tape of claim 11 , further comprising a polymerized rosin approximately in a range of about 7.5% to about 10% of the total weight percentage of the adhesive.
13 . The tape of claim 1 , wherein the polymerized rosin includes one or more of Dymerex or P-95 summit rosin.
14 . The tape of claim 1 , further comprising a release liner layer adjacent to the adhesive layer, wherein the release liner layer is configured to detach from the adhesive layer to expose the adhesive layer to the environment.
15 . The tape of claim 14 , wherein the release liner layer comprises a paper coated with a silicone release agent on the adhesive side such that it attaches to the adhesive layer to block the adhesive from attaching to surfaces.
16 . The tape of claim 1 , wherein the styrenic block copolymer includes a pair of polystyrene endblocks separated by a rubber block.
17 . The tape of claim 16 , wherein each of the polystyrene endblocks form domains providing cross-linking structure.
18 . A method of making and using a hot melt adhesive tape, comprising:
preparing an adhesive layer by combining one or more raw ingredients, the raw ingredients comprising:
a styrenic block copolymer approximately in a range of about 33.8% to about 55.5% of the total weight percentage of the adhesive;
an adhesion promoter approximately in a range of about 1.1% to about 1.5% of the total weight percentage of the adhesive;
an endblock modifier approximately in a range of about 7% to about 10% of the total weight percentage of the adhesive; and
a tackifier approximately in a range of about 20% to about 40% of the total weight percentage of the adhesive;
applying a foil layer to the adhesive layer to form the tape, and
applying the tape to an object,
wherein the tape is UL181A certification compliant.
19 . The method of claim 18 , wherein applying the foil layer to the adhesive layer further comprises laminating the adhesive layer to the foil layer.
20 . A pressure sensitive hot-melt adhesive comprising:
a styrenic block copolymer approximately in a range of about 33.8% to about 55.5% of the total weight percentage of the pressure sensitive hot-melt adhesive;
an adhesion promoter approximately in a range of about 1.1% to about 1.5% of the total weight percentage of the pressure sensitive hot-melt adhesive;
an endblock modifier approximately in a range of about 7% to about 10% of the total weight percentage of the pressure sensitive hot-melt adhesive; and
a tackifier approximately in a range of about 20% to about 40% of the total weight percentage of the pressure sensitive hot-melt adhesive.