PASTEURIZABLE, WATER WHITENING RESISTANT EMULSION BASED PRESSURE SENSITIVE ADHESIVE

摘要

Water whitening of waterborne pressure sensitive adhesives is a very complex phenomenon. To improve the water whitening performance one should prevent either the segregation of ionic species and surfactant during film formation or seriously limit the swelling of the hydrophilic domains by absorbed water. GME-3194 has a unique surfactant morphology compared to traditional pressure sensitive adhesive films. We believe that this morphology is responsible for the excellent water whitening resistance in both hot water and ice/water mixture. GME-3194's morphology is very stable and there is no evidence of surfactant segregation even after a prolonged aging time at 70 C.