Adjustable modules are disclosed for building final products of various sizes from a single-sized, mass-produced unit. In the preferred embodiment, each module is made of mass-produced, left-hand and right-hand sections that are joinable at oppositely facing, abuttable ends by any suitable means--here, dowels that fit into aligned channel halves in the complemental faces of the two sections. By utilizing the split-section aspect, the overall size of the final product, e.g., a door, can be reduced without detracting from the functional, and sometimes even ornamental, aspects of the modules. This is achieved by trimming back the modular sections along their complemental faces prior to joining the faces together.
Disclosed herein is a process for suspension polymerization of a vinyl polymer which comprises using as the suspending agent a polyvinyl ester polymer having an ionic group at an end thereof or a polyvinyl alcohol polymer having a degree of hydrolysis of 90 mol % or less which is obtained by hydrolysis of the above polyvinyl ester polymer. According to the above-mentioned process, vinyl polymer granules having a sharp granulometric dispersion, high bulk density, high plasticizer absorption and low vinyl monomer residue are obtained.
