| 摘要 |
A UV-curable pressure sensitive adhesive comprising: 1 to 90 percent of a UV-curable acrylic oligomer where the UV-curable acrylic oligomer is an acrylic acid ester, 1 to 65 percent of a tack control component where the tack control component is an aliphatic urethane acrylate oligomer, and optionally 5 to 20 percent of at least one elastomeric material where the elastomeric material includes one of curable elastomeric acrylate esters or methacrylate esters selected from the group consisting of polybutadiene, saturated polybutadiene and polyurethane; an adhesive component ratio (ACR) of the pressure sensitive adhesive defined by formula (A) where the weight percent of the UV-curable acrylic oligomer relative to the sum of the weight percents of the tack control component and the elastomeric material is about 0.5 to about 1.5: (UV-curable acrylic oligomer)/(tack control component + elastomeric material) --- (A);the ACR effective so that a UV-cured pressure sensitive adhesive forms a first peel adhesion force of about 200 to about 900 grams per linear inch (gpli) as measured per test method ASTM D3330/D3330M - 04 method F and up to five subsequent peel adhesions each about 30 percent to about 200 percent of the first peel adhesion and a first subsequent peel adhesion after fouling with debris at least about 50 percent of the first peel adhesion; and a liquid mixture of the UV-curable acrylic oligomer, the tack control component, and the optional elastomeric material are compatible such that the liquid mixture remains a stable liquid that is homogenous without phase separation for at least about 3 days at about 70 to about 75 Deg. F (about 21 to about 24 Deg. C). |
