POLYMERIC COMPOSITIONS WITH IMPROVED NOISE SUPPRESSION

摘要

Disclosed is a method for improving vibration damping of a substrate, such as the underbody of an automobile. The method comprises applying a plastisol which comprises a polymeric component and a polymeric plasticizer. The fused plastisol has improved damping behavior as determined using Dynamic Mechanical Thermal Analysis. Novel plastisols are also disclosed.

主权项

1. A plastisol comprising a polymeric component and a polymeric plasticizer wherein said polymeric plasticizer is produced by reaction (I)wherein n ranges from 0 to 8; R is selected from the group consisting of saturated, linear or branched alkyl having 1 to 10 carbon atoms; and the number average molecular weight of said polymeric plasticizer ranges from 400 to 3000, and wherein said plastisol comprises 10 weight percent to 70 weight percent of said polymeric plasticizer, 10 weight percent to 70 weight percent of said polymeric component, and 10 weight percent to 80 weight percent of other components, each based on the total weight of said plastisol, and wherein said other components comprise a second plasticizer, fillers, pigments, stabilizers, foaming agents, hollow materials, elastomeric materials, rheology control additives, and/or adhesion promoters.