SURFACE PROTECTION SHEET AND WATER-DISPERSED PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR SURFACE PROTECTION SHEET  

Inventor(s): UKEI NATSUKI [JP]; NISHIMURA IZUMI [JP]; MATSUMOTO CHIE [JP]; OKADA MIKA [JP] 

Priority number(s): JP20130224663 20131029 ; JP20130224664 20131029 ; WO2014JP76264 20141001

Abstract of  US2016264825 (A1)：

Provided are a surface protection sheet with excellent weatherability, good anti-residue properties and low-contaminating properties and a water-dispersed PSA composition for surface protection sheets. The surface protection sheet provided by this invention comprises a PSA layer and a support substrate. The PSA layer is formed from a water-dispersed PSA composition comprising an acrylic polymer and a crosslinking agent. The acrylic polymer is obtained by emulsion polymerization of a starting monomer mixture comprising 50 to 99.9 wt % C1-20alkyl (meth)acrylate and 0.1 to 5 wt. % carboxy group-containing monomer. The crosslinking agent comprises one, two or more species selected from a group consisting of oxazoline-based crosslinking agents, isocyanate-based crosslinking agents and epoxy-based crosslinking agents. The support substrate comprises 50% by weight or more polyolefin resin and 5 to 30% by weight inorganic powder.