Abstract: Pressure sensitive adhesive compositions comprising (a) a synthetic polymer latex; and (b) an aqueous dispersion of thinned, derivatized starch are disclosed.

Abstract: Pressure sensitive adhesive compositions comprising (a) a synthetic polymer latex; and (b) an aqueous dispersion of thinned, derivatized starch are disclosed.

Abstract: A device for severing flexible polymeric tube, pipe, or tubular extrudate, such as flexible light pipe, reproducibly, cleanly, and safely is described. The device comprises a block with two specially aligned cylindrical devices for holding the pipe and a slot between the devices for guiding the severing blade with minimum deviation from its path, and a pivot and mounting upon which a blade in a holder is mounted to give even more accurate and uniform control of the path of the severing action.

Abstract: A device for coupling light from a light source to one or more light pipes is described. The device allows for direction of light from a single source through multiple light pipes with minimal loss of light. The device also minimizes heating of the light pipes and provides for an even light intensity distribution over several light pipe surfaces. Potential applications include automotive lighting and interior lighting.

Abstract: A method for preparing a plastic composite by feedblock coextrusion of a molten acrylic based capstock overlying and integrally bonded to an underlying structural plastic ply. The composition of the capstock contains from about 40 to about 88 wt. % of an acrylic polymer having a molecular weight of at least about 125,000 daltons, and from about 12 to about 60 wt. % of an acrylate-based impact modifier resin in the form of discrete multi-layered polymeric particles. The capstock composition has a melt flow index of about 0.4 to about 0.75 grams/10 minutes (ASTM Method D-1238, Condition I) and the underlying structural ply has substantially the same melt flow index as that of the capstock composition.

Abstract: Efficient, lower weight, more versatile rear projection screens can be produced by combining in laminated form an unmodified clear matrix resin layer with a second sheet containing light diffusing polymer particles of specific size and size distribution.

Abstract: A novel light diffusing resin (material) has been invented which combines excellent light diffusing properties with high light transmission. The combination of properties is possible because the material does not significantly backscatter light. Also, the material exhibits good contact clarity. This light diffusing material is an excellent choice for use in projection systems as a method for hiding scratches or imperfections in a rear projection screen such as TV screen, rear projected slides, liquid crystal display (LCD) screens or thin layer electric decoration sheet by using a plastic sheet containing a specific light diffusing particles therein and having a combination of properties including high light transmission properties that does not significantly backscatter ambient light from outside illuminating sources.