Useful thermoplastic polymer powders are formed by a method comprising: cooling a foam comprised of a thermoplastic foam below the brittleness temperature of the thermoplastic polymer, wherein the foam has an average strut dimension of 10 to 500 micrometers, and comminuting the cooled foam to form a thermoplastic polymer powder. The method allows for the efficient grinding of the thermoplastic polymer having improved morphology and desirable characteristics such as dry flow without flow aids.

Useful thermoplastic polymer powders are formed by a method comprising: cooling a foam comprised of a thermoplastic foam below the brittleness temperature of the thermoplastic polymer, wherein the foam has an average strut dimension of 10 to 500 micrometers, and comminuting the cooled foam to form a thermoplastic polymer powder. The method allows for the efficient grinding of the thermoplastic polymer having improved morphology and desirable characteristics such as dry flow without flow aids.

In various embodiments, the present invention is directed to terpolymers of carbon monoxide (CO), olefins (alkenes), and epoxides, as well as related methods and catalysts for their making and use. These terpolymer chains are comprised of ketone repeat units, ester repeat units, and ether repeat units. The additional presence of the ester repeat units and ether repeat units have the effect of lowering terpolymer melt temperature relative to that of similar polyketone, thus separating melt temperature from decomposition temperature, making it suitable for melt processing. In a single reaction mixture, the same metal catalyst that polymerizes CO with olefins also incorporates epoxide monomers into the terpolymer in the form of ester or ester and ether linkages. As a part of the terpolymer chain, the ester groups can undergo hydrolysis, rendering these terpolymer compositions hydrolytically degradable.

In various embodiments, the present invention is directed to terpolymers of carbon monoxide (CO), olefins (alkenes), and epoxides, as well as related methods and catalysts for their making and use. These terpolymer chains are comprised of ketone repeat units, ester repeat units, and ether repeat units. The additional presence of the ester repeat units and ether repeat units have the effect of lowering terpolymer melt temperature relative to that of similar polyketone, thus separating melt temperature from decomposition temperature, making it suitable for melt processing. In a single reaction mixture, the same metal catalyst that polymerizes CO with olefins also incorporates epoxide monomers into the terpolymer in the form of ester or ester and ether linkages. As a part of the terpolymer chain, the ester groups can undergo hydrolysis, rendering these terpolymer compositions hydrolytically degradable.

The present disclosure provides multi-layer articles that comprise a polyolefin component and a polymer blend attached to the polyolefin component, wherein the polymer blend includes (1) a propylene and -olefin copolymer in an amount from about 15% to about 70% by weight of the polymer blend, and (2) a carbon monoxide-containing polyolefin-based copolymer in an amount from about 25% to about 85% by weight of the polymer blend. The polymer blend has an extractables fraction with pH higher than 5. Also provided are methods of bonding a first layer comprising polyvinyl chloride to a second layer comprising the disclosed polymer blend.

A conveyer module, small fragments of which are detectable by X-ray and magnetic sensors, is formed from a compounded mixture of a thermoplastic polymer and a ferrous metal powder. The thermoplastic polymer comprises a polyketone constituting less than 85% by weight of the mixture. The ferrous metal powder is a 400 series stainless steel constituting between 16% and 20% by weight of the mixture.

A conveyer module, small fragments of which are detectable by X-ray and magnetic sensors, is formed from a compounded mixture of a thermoplastic polymer and a ferrous metal powder. The thermoplastic polymer comprises a polyketone constituting less than 85% by weight of the mixture. The ferrous metal powder is a 400 series stainless steel constituting between 16% and 20% by weight of the mixture.

The present invention relates to polyketone molding compounds based on partially crystalline, aliphatic polyketones. In particular, it relates to halogen-free, flameproof molding compounds based on aliphatic polyketones which preferably comprise salts of phosphinic acids as flame retardant. The molding compounds fulfill the fire protection classification V0 according to UL94 and display good mechanical properties. These molding compounds are suitable for the production of in particular thin-walled molded articles for the electrical and electronics industry, such as for example housings, housing components or connectors.

The present invention relates to polyketone molding compounds based on partially crystalline, aliphatic polyketones. In particular, it relates to halogen-free, flameproof molding compounds based on aliphatic polyketones which preferably comprise salts of phosphinic acids as flame retardant. The molding compounds fulfill the fire protection classification V0 according to UL94 and display good mechanical properties. These molding compounds are suitable for the production of in particular thin-walled molded articles for the electrical and electronics industry, such as for example housings, housing components or connectors.

Aliphatic polyketone polymer compositions modified with carbon nanostructures, particularly carbon nanotubes are provided that dramatically improve mechanical, electrical conductivity and thermal conductivity properties. The provided compositions may be used to produce melt-processable, engineering thermoplastic parts for a wide range of applications such as in automotive, industrial, electrical and electronics, oil & gas and consumer industries.