A polymeric composition to be used in producing foam in which the polymeric composition
comprises conventional linear polypropylene, high melt strength polypropylene and
a rheology modifier resin. The conventional linear polypropylene is in an amount
of from about 1 to 25 weight percent of the polymeric composition. The high melt
strength polypropylene is in the amount of from about 51 to 85 weight percent of
the polymeric composition. The rheology modifier resin is in the amount of from
5 to about 30 weight percent of the polymeric composition. The conventional linear
polypropylene may be offgrade virgin polypropylene or recycled polypropylene from
post-industrial or post-consumer sources. The rheology modifier resin is a member
of the group of styrene-olefin copolymers.