Novel compositions comprise a blend of (A) a thermoplastic polymer selected from copolymers of ethylene and tetrafluoroethylene, and thermoplastic vinylidene fluoride polymers; and (B) a thermoplastic elastomer having (i) at least one elastomeric segment comprising (a) vinylidene fluoride, hexa- or pentafluoropropylene, and tetrafluoroethylene repeating units in a mole ratio of 45-90:5-50:0-35 or (b) perfluoro(alkyl vinyl ether), tetrafluoroethylene and vinylidene fluoride repeating units in a m...

Non-miscible polymeric blends comprising a major proportion of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and lesser amounts of a maleated, partially hydrogenated block copolymer and an alpha-olefin/alpha,beta-ethylenically unsaturated copolymer exhibit improved melt stability and improved toughness and impact strength.

Novel copolymer blends comprising (a) a copolymer of alkenyl aromatic monomers containing from about 10 to about 70 percent by weight of an isopropenyl aromatic monomer, (b) a block copolymer having an alkenyl aromatic monomer blocks and polybutadiene blocks containing from about 10 to about 70 percent by weight isopropenyl aromatic monomer in the alkenyl aromatic block and from about 15 to about 50 weight percent butadiene, (c) a block copolymer having alkenyl aromatic monomer blocks and polybu...

An emulsifier blend includes at least one alkali metal sulfonate and at least one alkali metal alkyl salicylate. The emulsifier blend can be combined with a lubricant oil to provide a water-miscible lubricating oil concentrate capable of forming a stable aqueous emulsion when added to an aqueous medium.

An unground, fine pozzolan having a sulphur content determined as wt. % SO.sub.3 of 5 to 25 wt. % is employed in admixture with Portland cement to provide a blended hydraulic cement which has increased compressive strength characteristics as well as extended retardation time without the need for separate addition of gypsum; the pozzolan may also be admixed with fly ash to provide a pozzolan blend for use with Portland cement with reduced Portland cement content and use of Class C fly ash; the po...

The solvent-resistance and thermal stability of polyamideimides of the general formulae: ##STR1## is improved by capping the amideimides with a crosslinking functionality (Y) containing a residue selected from the group of: ##STR2## wherein R.sub.1 =lower alkyl, lower alkoxy, aryl, aryloxy, substituted alkyl, substituted aryl (either including hydroxyl or halo-substituents), halogen, or mixtures thereof; j= 0, 1, or 2; G=--CH.sub.2 --, --O--, --S--, --SO.sub.2 --, --SO--, --CO--, --CHR--, or --C...

Polymer blends comprising: (A) 99.5-0.5 wt. % of a copolymer comprising: a1) 50-99 wt. % of C.sub.1 -C.sub.10 -alkyl- or C.sub.5 -C.sub.8 -cycloalkylmethacrylates or mixtures thereof, a2) 0.5-20 wt. % of maleic acid anhydride or fumaric acid anhydride or maleimide, and a3) 0.5-40 wt. % of vinyl aromatics which may be unsubstituted or substituted on the aromatic ring with 1 or 2 alkyl groups of 1 to 4 carbon atoms; and (B) 0.5-99.5 wt. % of a copolymer comprising: b1) 99.5-50 wt. % of styrene and...

Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and N-vinyllactams or N-vinylamides and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

The invention is directed to clear polymer blends of acrylic/vinyl aromatic copolymers with certain core-shell polymer impact modifiers. The core-shell modifiers have lightly crosslinked, predominantly diolefinic rubbery cores and one or more hard shells.

Paving composition comprising a blend of specified bitumen and high vinyl butadiene, substantially free of added sulphur or peroxide, with elastic recovery greater than 50%.