Abstract: Novel, uncured tapes are provided comprising a raw polymer mixture of HDPE, LLDPE or isotactic polypropylene, chlorosulfonated polyethylene rubber, a small amount of a filler or pigment and, optionally, a minor proportion of chlorinated polyethylene rubber or an elastomeric polymer. They are self-bonding when elongated at least about 50% and wrapped on a substrate, and possess various degrees of flame resistance depending on their composition.

Abstract: A process is provided for affixing to a substrate a non-tacky, flexible layer consisting of a raw polymer mixture of a minor proportion of high density polyethylene, linear low density polyethylene or isotactic polypropylene and a major proportion of elastomeric polymer of which at least about 50 percent by weight is butyl rubber, by applying a stretching elongation to the flexible layer before application to the substrate. The process may be used in a wide variety of applications, for example, to cover metal parts, make repairs to cracked cover components and electrical wiring splicing and to repair leaks in pipes or hoses.

Abstract: A polymeric covering material is provided which is prepared by crosslinking a mixture comprising a polyethylene and a polybutadiene. Such material may be used as a heat shrinkable film, for splice covering tubes and as a protective coating for articles.

Abstract: Compositions having improved low temperature impact strength are provided which comprise a mixture of high density polyethylene and polybutadiene. Such compositions may be used for coating of pipes, especially for Arctic-type use conditions or for containers for low temperature use.

Abstract: Thermoplastic compositions are provided which comprise, as the polymeric materials, poly(epsilon caprolactone), a predominantly cis-1,4 polydiolefin and optionally an ionomer and, as filler, silica or calcium silicate. The compositions are useful in orthopaedic applications.

Abstract: Blends of trans-1,4 polymers of C.sub.4 -C.sub.5 conjugated diolefinic compounds and poly(epsilon-caprolactone) have improved properties and are suitable for use in medical casts or, when vulcanized, as golf ball covers.