1
Clem B Shriver, Donald E Richeson, Robert H Vogliano: Collapsible-stable blown container. The Goodyear Tire & Rubber Company, Alvin T Rockhill, J D Wolfe, October 4, 1988: US04775564 (60 worldwide citation)

A molded extensible-collapsible container having a series of flutes, in the generic sense, in its side to permit the container when subjected to an external force to move to a collapsed position or to the extended position when preferably the yield point of the plastic is no greater than about 5% an ...


2
Donald E Richeson, Judith A Tweedie: Polyester composition which is particularly suitable for use in thermoforming thin walled articles. The Goodyear Tire & Rubber Company, Alvin T Rockhill, February 26, 1991: US04996269 (16 worldwide citation)

This invention relates to a thermoplastic resin composition which is particularly suitable for use in thermoforming thin walled articles. The thermoplastic resin compositions are comprised of (1) from about 94 to about 99 weight percent polyethylene naphthalate and (2) from about 1 to 6 weight perce ...


3
Donald E Richeson, William G Perkins, Walter F Johnston: Nucleation of crystallization in polyesters. Shell Oil Company, Douglas Baldwin, Denise Y Wolfs, July 11, 1995: US05431972 (7 worldwide citation)

This invention is a composition and a kit to prepare the composition and articles made from the composition, which composition comprises polyethylene terephthalate, a nucleating agent having a defined Nucleation Index and optionally a polyolefin and a heat stabilizer. A particularly effective nuclea ...


4
Hoyt M Wells, William J Determan, Vernon V Vanis, John E Hrivnak, Donald E Richeson, Timothy P Saupe: Utilization of polyester in place of lead for use as a sheathing material for curing long length hose. The Goodyear Tire & Rubber Company, Marc R Dion Sr, February 6, 1990: US04898703 (2 worldwide citation)

A method of vulcanizing a tubular article by extruding a sheath of unoriented polyethylene terephthalate about the article followed by quenching the sheath to an amorphous state. The sheathed article is then subjected to vulcanizing conditions in order to convert the sheath from the low density amor ...


5
Donald E Richeson: Method for conditioning polyester and controlling expansion of polyester during thermoforming. M & G USA Corporation, Renner Kenner Greive Bobak Taylor & Weber, May 20, 2004: US20040096640-A1

A method for thermoforming a cellular thermoplastic resin comprises exposing a cellular thermoplastic resin to a controlled humidity environment to obtain a conditioned cellular thermoplastic resin, molding the conditioned cellular thermoplastic resin to form a desired shape, and heating the conditi ...


6
Donald E Richeson: Method for conditioning polyester and controlling expansion of polyester during thermoforming. M&G USA Corporation, M & G Polymers USA, June 2, 2005: US20050116388-A1

A method for thermoforming a cellular thermoplastic resin comprises exposing a cellular thermoplastic resin to a controlled humidity environment to obtain a conditioned cellular thermoplastic resin, molding the conditioned cellular thermoplastic resin to form a desired shape, and heating the conditi ...



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