The Dexter Corporation

Other

Peter J Perron

Satchit Srinivasan

Peter Solera

Gerald A Capocci

Anthony DeBellis

Joseph Stephen Puglisi

Edmund K Lau

Douglas Wayn Horsey

Chia-Hu Chang

Edward A Bourbonais

Khemchand Nangrani

Ed Bourbonais

The invention relates to thermoplastic polyolefin compositions having enhanced surface durability and products thereof which include a thermoplastic polyolefin base component at least one radiation-crosslinkable component present in an amount sufficient to enhance the surface durability of the thermoplastic polyolefin component when radiation-cured and at least one photoinitiator present in an amount sufficient to initiate crosslinking of the radiation-crosslinkable component upon exposure of the thermoplastic polyolefin composition to radiation. The invention further relates to methods of providing a cured thermoplastic polyolefin composition having enhanced surface durability by preparing a mixture having a thermoplastic polyolefin base component, at least one radiation-crosslinkable component in an amount sufficient to enhance the surface durability of the polyolefin when radiation cured, and at least one photoinitiator each in an amount sufficient to facilitate crosslinking of the radiation-crosslinkable component when a surface of the thermoplastic polyolefin composition is exposed to radiation, and then exposing the thermoplastic polyolefin composition to radiation in an amount sufficient to crosslink the radiation-crosslinkable component thereby providing a thermoplastic polyolefin composition having enhanced surface durability.

Polyolefin materials having enhanced surface durability and methods of making the same by exposure to radiation

A monoglycidyl stabilized polycarbonate and polyamide blend comprising a polycarbonate, a polyamide, a polymeric compatabilizing agent and a monoglycidyl compatabilizing agent is provided wherein the monoglycidyl stabilizer effectively end caps the polyamide without cross linking polymer chains. The polymeric compatabilizing agent comprises a polyetherimide, a polyurethane, a linear segmented thermoplastic elastomer having an ester segment and a hard segment of semi-crystalline, partially aromatic polyamide based on diphenylmethane diisocyanate, hydroxyl containing phenoxypolymers, polyamide-polyarylate block copolymers, polyamide-polyester block copolymers, or blends thereof. The polycarbonate and polyamide blend may further comprise an impact modifying agent or an alloying agent.

Stabilizer for compatibilized polycarbonate and polyamide polymer blends

A compatibilizing agent for polymeric blends of polycarbonates and polyamides which have improved physical and chemical resistance properties, without any substantial sacrifice of the desirable properties of the polycarbonate or polyamide. The polymeric compatibilizing agent has at least one functional group soluble in the polycarbonate and at least one functional group soluble in the polyamide, and preferably is a polymeric compatibilizing agent for blends of polycarbonate and polyamide resins, which comprises from about 10 to 90 or even 100 weight percent of a compound selected from the group consisting of a polyetherimide, a polyurethane and a linear segmented thermoplastic elastomers having an ester segment and a hard segment of semi-crystalline, partially aromatic polyamide, based on diphenylmethane diisocyanate; from about 90 to about 10 weight percent of a maleic anhydride grafted polymeric blend; from 0 to about 80 weight percent of an alloying agent; said compatibilizing agent thus having at least one functional group soluble in the polycarbonate resin and at least one functional group soluble in the polyamide resin; wherein the melting or softening point of said compatibilizing agent is no greater than the melting or softening points of the polycarbonate and polyamide resin constituents in the blend. A process for producing the polymeric blends of a polycarbonate and a polyamide is also provided.

Compatibilizing agent for polycarbonate and polyamide polymer blends

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Arlington, TX, United States of America

Peter J Perron