Water whitening-resistant pressure sensitive adhesives
An acrylic pressure sensitive adhesive, polymer technology, applied in the direction of adhesive type, ester copolymer adhesive, adhesive, etc., which can solve the problem of obstructing the visibility of containers and/or container contents
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Embodiment 1
[0038] [0034] A reactor charge was formed containing 307.2 g of deionized water. A pre-emulsion feed soap was formed by dissolving 42.01 g of Disponil 993 (32% solids, manufactured by Cognis Corp.), 7.26 g of Aerosol OT-75 (75% solids, manufactured by Cytec) in 120.03 g deionized water .
[0039][0035] A monomer mixture was prepared using 753.62 g of 2-ethylhexyl acrylate, 89.75 g of methyl methacrylate, 44.88 g of styrene, and 8.97 g of acrylic acid. The monomer mixture was added to the pre-emulsion while mixing and agitating until the viscosity ranged from 1000-4000 cps (Brookfield, RV, #3 / 12 rpm).
[0040] [0036] An aqueous initiator feed solution was prepared by dissolving 1.95 g of potassium persulfate in 77.96 g of deionized water. A kickoff initiator was prepared consisting of 1.95 g of potassium persulfate.
[0041] [0037] The reactor charge was introduced into a 1.5 liter reactor. The reactor charge was heated to 78°C and the starting initiator was added. The mix...
Embodiment 2
[0043] [0038] A reactor charge was formed containing 283.81 g of deionized water. A pre-emulsion feed soap was formed by dissolving 17.65 g of Disponil AFX-1080 (80% solids, manufactured by Cognis Corp.), 7.45 g of Aerosol OT-75 (75% solids, manufactured by Cytec) in 106.78 g of deionized water liquid.
[0044] [0039] A monomer mixture was prepared using 772.74 g of 2-ethylhexyl acrylate, 92.03 g of methyl methacrylate, 46.01 g of styrene, and 9.20 g of acrylic acid. The monomer mixture was added to the pre-emulsion while mixing and agitating until the viscosity ranged from 1000-4000 cps (Brookfield, RV, #3 / 12 rpm).
[0045] [0040] An aqueous initiator feed solution was prepared by dissolving 2.67 g of potassium persulfate in 118.54 g of deionized water. A starting initiator was prepared consisting of 2.67 g of potassium persulfate.
[0046] [0041] The reactor charge was introduced into a 1.5 liter reactor. The reactor charge was heated to 78°C and the starting initiator w...
Embodiment 3
[0048] [0042] A reactor charge was formed containing 283.52 g of deionized water. A pre-emulsion feed was formed by dissolving 17.65 g of Disponil AFX-1080 (80% solids, manufactured by Cognis Corp.), 7.44 g of Aerosol OT-75 (75% solids, manufactured by Cytec) in 106.67 g of deionized water Soap.
[0049] [0043] 771.95 g of 2-ethylhexyl acrylate, 91.93 g of methyl methacrylate, 45.97 g of styrene, 9.20 g of acrylic acid, and 1.54 g of tetraethylene glycol diacrylate (100% active, manufactured by Sartomer ), to prepare the monomer mixture. The monomer mixture was added to the pre-emulsion while mixing and agitating until the viscosity ranged from 1000-4000 cps (Brookfield, RV, #3 / 12 rpm).
[0050] [0044] An aqueous initiator feed solution was prepared by dissolving 2.67 g of potassium persulfate in 118.42 g of deionized water. A starting initiator was prepared consisting of 2.67 g of potassium persulfate.
[0051] [0045] The reactor charge was introduced into a 1.5 liter rea...
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