A blend comprising a high molecular weight, high density polyethylene (HMW HDPE) and a linear low density polyethylene (LLDPE) is disclosed. The blend comprises from about 50 wt. % to about 80 wt. % of HMW HDPE. The HMW HDPE has a density greater than about 0.94 g/cc and a melt index MI.sub.2 less than about 0.1 dg/min. The blend also comprises about 20 wt. % to about 50. wt % of LLDPE. The LLDPE has a density within the range of about 0.90 to about 0.93 g/cc and an MI.sub.2 within the range of ...

There is provided a diesel fuel blend comprising one or more commercially available diesel fuels; ethanol and a coupling agent.

A blend of polymers comprising from 5 to 95 weight % of a polymer having a high molecular weight made using a single site type catalyst and from 95 to 5 weight % of a polymer having a lower molecular weight made using a catalyst containing a phenoxide, preferably a salicylaldimine ligand, has an excellent toughness and would be suitable for use in applications such as polyolefin pipes.

The invention includes a blend composition comprising (a) about 1 to about 15 weight percent of amorphous polypropylene (b) about 99 to about 85 weight percent of crystalline polypropylene, wherein the molecular weight of the amorphous polypropylene is lower than the molecular weight of the crystalline polypropylene; the molecular weight (Mw) of the amorphous polypropylene is higher than about 50,000, preferably 100,000 g/mole; the amorphous polypropylene has a MWD less than about 3; and wherein...

Halide polymers such as polyvinyl chloride and polyamides melt blended at a polyamide to halide polymer weight ratio of about 1.5:1 to about 2:1 with an effective amount of a carboxyl and/or CO-functional ethylene polymer to compatibilize the halide polymer and polyamide exhibit superior chemical resistance.

Emulsion blends are provided containing Fischer-Tropsch hydrocarbons, non-Fischer-Tropsch hydrocarbons, water, and a surfactant.

Liquid-crystalline polymer blends comprising two or more cholesteric liquid-crystalline polymers or at least one nematic liquid-crystalline polymer and at least one cholesteric liquid-crystalline polymer. All hues can be produced specifically and in a reproducible manner by variation in the blend components and in the mixing ratio. The polymer blends are suitable as materials or as effect pigments.

A polymer blend is disclosed which comprises a blend of (1) one or more polymers made using a late transition metal catalyst, and (2) one or more polyolefins made using a free radical process or polymerized using a Phillips type (chromium oxide) catalyst, a metallocene catalyst, or a Ziegler-Natta catalyst.

In the blending of a polymer of chloroprene with a lesser proportion of a diene/nitrile rubbery copolymer, a composition of much improved processing, as for example ease of handling on a mill and uniformity of mixing, is obtained when the nitrile copolymer is selected as a copolymer of about 55-80 mole % of a 2-alkyl butadiene-1,3 and about 20-45 mole % of an acrylic nitrile.

A substantially uniform blend of (A) at least one copolyetherester having a melting point of at least 120.degree.C. which is prepared from a dicarboxylic acid, a low molecular weight diol and poly(tetramethylene oxide) glycol and (B) at least one polyetherester, which may be a copolymer. If a polyetherester is to be utilized it is prepared from poly(tetramethylene oxide) glycol and a dicarboxylic acid. If a polyetherester copolymer is to be utilized it is prepared from a dicarboxylic acid, a low...