Polymers of ethylene, an alpha mono-olfin, and ethylidene bicycloheptene which can be sulfur-cured to form elastomers.

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.

In a polymer actuator driven by extension and contraction of the polymer by electrical stimulation, the displacement generated by extension and contraction of the polymer is taken out through a movable body connected to a second terminal member which is connected to one end of the polymer, by way of a first elastic body and pressed against a first terminal member which is connected to the other end of the polymer, by the elastic force of the first elastic body.

The dissemination of gas turbine aviation fuels under shock conditions, particularly and the accompanying fire hazard are reduced by dissolving in the fuel a segmented copolymer of ethylene and a higher olefine. The fuel may be gelled by the dissolved copolymer or if the molecular weight is greater than 10.sup.6 and the concentration of the polymer is such that its molecules overlap in the fuel, the fuel may be a liquid, but with a reduced tendency to form mist particles under shock conditions.

A blend of at least one boron, phosphorus or sulphur containing acid which may contain amino, hydrocarbyl or hydrocarbylamino substituents and a polypropylene/unsaturated carboxylic acid or anhydridge graft copolymer has adhesive properties similar to those of the graft copolymer alone. The blend is readily produced and can be used in a fibre reinforced thermoplastic material or in blends of an olefine polymer with a different type of polymer such as a polyamide or polyester. Suitable acids incl...

This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited p...

A polymer alloy of polyphenylene sulfide resin and a polyester resin with polyethylene terephthalate as a main component, and forming a co-continuous structure with a wavelength of concentration fluctuation of 0.001 to 1 .mu.m or a dispersed structure with a distance between particles of to 1 .mu.m. The co-continuous structure or dispersed structure of the polymer alloy is formed by the phase separation caused by spinodal decomposition. The polymer alloy is miscible when the shear rate is kept i...

A film contains a first polymer having a plurality of hydrogen bond donating moieties, and a second polymer having a plurality of hydrogen bond accepting moieties. The second polymer is hydrogen bonded to the first polymer.

Polysaccaride polymers are employed in various medical applications. For example, chitosan--arabinogalactan and polysaccharide amine polymers are disclosed. The polymers can be used to prevent wound adhesion, to provide scaffolds for tissue transplantation and carriers for cell culture.

A polymer electrolyte for lithium secondary batteries in which growth of lithium dendrites is suppressed is disclosed, batteries exhibiting excellent discharge characteristics in low to high temperature, comprising a polymer gel holding a nonaqueous solvent containing an electrolyte, wherein the polymer gel comprises (I) a unit derived from at least one monomer having one copolymerizable vinyl group and (II) a unit derived from at least one compound selected from the group consisting of (II-a) a...