Abstract: A composition is provided comprising: a) polyvinylchloride, b) inorganic solid particles, and c) a polymer having a polyether segment, wherein at least 60 mol-% of the end groups of the polymer are selected from the group consisting of carboxylic acid groups and hydroxyl groups, and wherein at least a part of the end groups of the polymer is a carboxylic acid group, wherein the carboxylic acid end groups are linked to the polyether segment via a linking segment comprising an ester group.

Abstract: A modular, temporary safety railing system that provides fall restraint protection during masonry wall construction projects includes a plurality of anchoring sleeves which are embedded in wet grout within a hollow cavity of a masonry block onto which posts and rail sections are assembled. The embedded pins receive and secure respective vertical posts via interconnecting locking pins comprising spring pin fasteners. A plurality of top and intermediate rail sections are attached to the vertical posts using connecting hardware designed to adjustable position said rail sections at an offset distance allowing additional courses of block to be added to the wall without interference from said railing system. As construction continues, the vertical posts are detached from the embedded sleeves and reused with newly installed sleeves.