Blends are provided of (a) certain aromatic-aliphatic polyamides and (b) an impact resistance-enhancing amount of a particulate rubbery impact modifier.

Disclosed are adhesive compositions of (a) certain low-melting crystalline copolyesters or amorphous copolyesters having high glass transition temperatures with (b) certain very low melting highly crystalline aliphatic polyesters.

This invention is concerned with polyetherimide blends. More particularly the polyetherimide blend comprises a polyetherimide and a block copolymer of a vinyl aromatic hydrocarbon and a diene hydrocarbon, and a polyester to form a ternary blend.

Disclosed are low-melting blends of polyesters and polyethylene glycols which are useful as adhesives.

The impact resistance and crystallization velocity of polyalkylene terephthalates (polyethylene and polybutylene terephthalates in particular) are improved significantly by blending said polyesters with a minor amount of a segmented polyesteramide.

Shaped articles are made from blends of rubber and plastic in which the rubber is in the form of discrete vulcanized particles dispersed in the plastic. After shaping the articles, they are exposed to free-radical crosslinking which converts the blends from thermoplastics to thermosets.

Blends are disclosed of monoolefin rubber with high-diene hydrocarbon rubber in which the monoolefin rubber is in the form of discrete vulcanized particles dispersed in a matrix of unvulcanized high-diene hydrocarbon rubber. The blends can be easily processed, and in a subsequent step, the high-diene hydrocarbon portion cured to give rubber articles having the ozone resistance of the monoolefin rubber and the good physical properties of the high-diene hydrocarbon rubber.

A polyolefin blend comprising: (a) a linear low density copolymer of ethylene and at least one alpha-olefin having 3 to 6 carbon atoms produced in the presence of an activated supported catalyst containing chromium and titanium, said copolymer having a density in the range of about 0.916 to about 0.922 gram per cubic centimeter and a melt index in the range of about 0.30 to about 1.2 grams per 10 minutes and being present in an amount of about 55 to about 75 percent by weight; and (b) a very low...

Polycarbonate resin compositions are disclosed comprising: (a) a polycarbonate resin; (b) an ABS-type terpolymer; and (c) at least one polyether-polycarbonate-polyether ABA-type triblock copolymer. These compositions are characterized by an improved Izod toughness at lower temperatures.

Nucleating agents have been discovered which enable molded articles to be prepared with smooth glossy surfaces from blends of polyethylene terephthalate and polybutylene terephthalate in the "wet state", i.e., without the resin having been subjected to a predrying stage. The present invention is directed to polyalkylene terephthalate resin compositions. Specifically, it is directed to undried blends of polyethylene terephthalate and polybutylene terephthalate resins with nucleating agents which ...