Curable composition, pressure-sensitive adhesive, method of making the same, and adhesive articles
A curable composition includes components: a) at least one ethylene-propylene-(nonconjugated diene) terpolymer; b) at least one ethylene-propylene copolymer; c) at least one bis(halomethyl)triazine crosslinker; and d) at least one tackifier. A weight ratio of component a) to component b) is in a range of from 15:85 to 85:15. A pressure-sensitive adhesive includes an at least partially crosslinked reaction product of the curable composition. Adhesive articles including the pressure-sensitive adhesive are disclosed.
1. A curable composition comprising components:
a) at least one ethylene-propylene-(nonconjugated diene) terpolymer;
b) at least one ethylene-propylene copolymer;
c) at least one bis(halomethyl)triazine crosslinker; and
d) at least one tackifier,
wherein a weight ratio of component a) to component b) is in a range of from 15:85 to 85:15.
2. The curable composition of claim 1 , wherein the components further comprise:
e) at least one Type-I photoinitiator; and
f) at least one polyfunctional (meth)acrylate.
3. The curable composition of claim 1 , wherein the curable composition is hot melt extrudable.
4. A method of making a pressure-sensitive adhesive, the method comprising at least partially curing the curable composition of claim 1 .
5. The method of claim 4 , wherein the at least partially curing comprises exposing the curable composition to actinic radiation.
6. A pressure-sensitive adhesive comprising an at least partially crosslinked reaction product of components comprising:
a) at least one ethylene-propylene-nonconjugated diene terpolymer;
b) at least one ethylene-propylene copolymer;
c) at least one bis(halomethyl)triazine crosslinker; and
d) at least one tackifier,
wherein a weight ratio of component a) to component b) is in a range of from 15:85 to 85:15.
7. The pressure-sensitive adhesive of claim 6 , wherein the components further comprise:
e) at least one Type-I photoinitiator; and
f) at least one polyfunctional (meth)acrylate.
8. The pressure-sensitive adhesive of claim 6 , wherein a weight ratio of component a) to component b) is in a range of from 15:85 to 35:65.
9. The pressure-sensitive adhesive of claim 6 , wherein a weight ratio of component a) to component b) is in a range of from 35:65 to 65:35.
10. The pressure-sensitive adhesive of any one of 6 , wherein component d) is present in an amount of from 50 to 150 parts by weight per hundred parts by weight of components a) and b) combined.
11. The pressure-sensitive adhesive of claim 6 , wherein the tackifier comprises a hydrogenated tackifier.
12. The pressure-sensitive adhesive of claim 6 , wherein the curable composition is hot melt extrudable.
13. An adhesive article comprising a first pressure-sensitive adhesive according to claim 6 adhered to a first major surface of a substrate.
14. The adhesive article of claim 13 , wherein the first pressure-sensitive adhesive is releasably adhered to the substrate.
15. The adhesive article of claim 13 , wherein the substrate comprises at least one of a polymer film and a metal foil.
16. The adhesive article of claim 13 , wherein the substrate comprises a foam.