Methods for making plasticized polymers, methods for making compositions using plasticized polymers, and compositions comprising plasticized polymers

摘要

A process for making a plasticized polymer comprises polymerizing a polymerizable monomer, such as an ethylenically unsaturated monomer, in a plasticizer, such as mineral oil, and in the presence of a catalyst system. The plasticized polymer may be mixed with a tackifying resin in the method of making the adhesive. Compositions that may be useful as adhesives include polymer systems comprising a first polymer; a plasticized system comprising a first plasticizer that was in the presence of the first polymer during the polymerization step to produce the first polymer; and tackifiers. The method can be used to prepare compositions having polymers of low density or low molecular weight or both. The final composition produced by the method of the present invention includes an adhesive, sealant, coating, or lubricant.