ADHESIVE COMPOSITIONS
Disclosed herein are pressure sensitive adhesive compositions that can include a styrene-butadiene rubber latex and a tackifier agent. In another example, the pressure sensitive adhesive compositions can include a styrene-butadiene rubber latex and acrylic polymer. The adhesive compositions can further include mineral oil and ethylene propylene diene monomer rubber. The pressure sensitive adhesives compositions can have a have low volatile organic compound vapor pressures while having effective adhesion properties on low surface energy substrates.
1 . An adhesive composition comprising:
a styrene-butadiene rubber latex, wherein the styrene-butadiene rubber latex is present in a concentration from about 60 wt % to about 70 wt %, based on the total weight of the adhesive composition; and
a tackifier agent, wherein the tackifier agent is present in a concentration from about 30 wt % to about 40 wt %, based on the total weight of the adhesive composition.
2 . The adhesive composition of claim 1 , wherein the adhesive composition has a loop tack from about 0.01 lb/in to about 3.0 lb/in conducted according to ASTM D6195.
3 . The adhesive composition of claim 1 , wherein the adhesive composition has a lap shear from about 1 psi to about 36 psi conducted according to ASTM D 1002.
4 . The adhesive composition of claim 1 , wherein the styrene-butadiene rubber latex has a viscosity from about 4,000 cP to about 5,000 cP.
5 . The adhesive composition of claim 1 , wherein the styrene-butadiene rubber latex has a viscosity from about 7,000 cP to about 8,000 cP.
6 . The adhesive composition of claim 1 , wherein the styrene-butadiene rubber latex has a solids content of greater than 50 wt %.
7 . The adhesive composition of claim 1 , wherein the tackifier is selected from rosin ester tackifier, rosin acid, hydrocarbon, terpene, modified terpene, coumarone-indene, or a combination thereof.
8 . The adhesive composition of claim 1 , further comprising a mineral oil.
9 . The adhesive composition of claim 1 , further comprising an ethylene propylene diene monomer rubber.
10 . The adhesive composition of claim 5 , wherein the styrene-butadiene rubber latex is crosslinked.
11 . The adhesive composition of claim 2 , wherein the styrene-butadiene rubber latex is selected from a group comprising crosslinked, non-crosslinked, or a combination of crosslinked and non-crosslinked latex.
12 . The adhesive composition of claim 2 , wherein the tackifier is a rosin ester.
13 . An adhesive composition comprising:
a styrene-butadiene rubber latex, wherein the styrene-butadiene rubber latex is present in a concentration from about 20 wt % to about 80 wt %, based on the total weight of the adhesive composition; and
an acrylic polymer, wherein the acrylic polymer is present in a concentration from about 20 wt % to about 80 wt %, based on the total weight of the adhesive composition.
14 . The adhesive composition of claim 13 , wherein the adhesive composition has a loop tack from about 0.01 lb/in to about 3.0 lb/in conducted according to ASTM D6195.
15 . The adhesive composition of claim 13 , wherein the adhesive composition has a lap shear from about 1 psi to about 36 psi conducted according to ASTM D 1002.
16 . The adhesive composition of claim 13 , further comprising a mineral oil.
17 . The adhesive composition of claim 13 , further comprising an ethylene propylene diene monomer rubber.
18 . The adhesive composition of claim 13 , wherein the adhesive composition has a solids content of greater than 50 wt %.
19 . The adhesive composition of claim 14 , wherein the acrylic polymer comprises a latex.
20 . An adhesive composition comprising:
a styrene-butadiene rubber latex, wherein the styrene-butadiene rubber latex is present in a concentration from about 60 wt % to about 70 wt %, based on the total weight of the adhesive composition;
a tackifier agent, wherein the tackifier agent is present in a concentration from about 30 wt % to about latex 40 wt %, based on the total weight of the adhesive composition; and
a naphthenic oil, wherein the naphthenic oil is present in a concentration from about 1 wt % to about 10 wt %, based on the total weight of the adhesive composition, wherein the adhesive composition has a loop tack from about 0.01 lb/in to about 3.0 lb/in conducted according to ASTM D6195, and wherein the adhesive composition has a lap shear from about 1 psi to about 36 psi conducted according to ASTM D 1002.