Ethyl Corporation

Michael E Kucsma

Jesse D Jones

Thomas S Allen

Edwin D Hornbaker

Paul A Zorzi

Albert J Haefner

F Alexander Pettigrew

Harold R Penton

Gary J Babcock

Berlin C Harris, Jr

A prosthesis for subcutaneous implantation such as a mammary implant used in reconstructive surgery is made from a polyphosphazene elastomer (e.g. polyfluoroalkoxy phosphazene) sac containing a silicone gel. The sac is essentially impermeable to the silicone gel fill and overcomes a gel migration problem encountered with implants made using polysiloxane sacs.

Mammary implant

Intimate blends of polypivalolactone resin and polycarbonate resin enable the production of molded articles exhibiting low warpage properties.

Polypivalolactone-polycarbonate blends

A recyclable blow molded, injection blow molded or injection molded plastic container having laminated walls that include a frangible load-bearing lamina and a non-frangible fluid-barrier lamina which can be easily separated from each other in a crushing operation and recycled to make another container.

Crushing process for recyclable plastic containers

Flame retardant thermoplastic compositions containing polypivalolactone resin, an inorganic phosphate, and optionally a fiberglass filler and a polybrominated aromatic compound.

Flame retardant polypivalolactone compositions

Improved thermoplastic compositions comprising glass fibers blended with polypivalolactone, and a process for producing these compositions.

Reinforced polypivalolactone

Improved thermoplastic compositions comprising a particulate reinforcing filler blended with polypivalolactone, and a process for producing these compositions.

Polypivalolactone molding compounds

Recyclable plastic containers

A process for preparing improved glass fiber reinforced thermoplastic compositions, the products produced thereby, and articles injection molded from the thermoplastic compositions. The process includes mixing and plastifying a powdered thermoplastic resin containing glass fibers in a screw extruder, milling the plastified resin-glass blend into a sheet on a hot roll mill, and dicing the sheet into pellets. The pellets are particularly suitable for use in forming articles by injection molding.

Growing community of inventors

Baton Rouge, LA, United States of America

Michael E Kucsma