Abstract: Resin compositions, layers, and interlayers comprising two or more thermoplastic polymers and at least one RI balancing agent for adjusting the refractive index of at least one of the resins or layers is provided. Such compositions, layers, and interlayers exhibit enhanced optical properties while retaining other properties, such as impact resistance and acoustic performance.

Abstract: The disclosed device is directed toward a furling swivel mechanism comprising a liner defining a vertical centerline. An inner sleeve is disposed on the liner and the inner sleeve defines an inner sleeve recess. An outer sleeve is rotatably coupled to the inner sleeve and the outer sleeve defines an outer sleeve recess. A headsail yoke is coupled to the inner sleeve recess. A halyard yoke is coupled to the outer sleeve recess. The inner sleeve recess and the outer sleeve recess are configured to form a zero moment along the vertical centerline.