| abstract |
This invention relates to a reactive plastisol dispersion comprisingn (1) a polyvinyl acetal thermoplast in particle form; (2) a liquid plasticizer' member of the group consisting ofn (a) at least one an ethylenically unsaturated monomer, oligomer or prepolymer of the formula:n wherein R is H or CH 3 , R 1 is an organic moiety and n is 1 or more, (b) at least one unsaturated polyester containing the group:n wherein R 2 and R 3 are organic moieties, x is 0-20 and y is 1-20; and (c) a mixture of (a) and (b); and, optionally, either (3) a free radical thermal initiator or (4) a photoinitiator for crosslinking. n The reactive plastisol dispersion when fluxed can be useful as a sealant or adhesive. |