Pechiney Plastic Packaging, Inc.

Douglas J Jackson

John P Eckstein

Mark E Nordness

Johnny Qiang Zheng

Ronald J Dembowski

Justin E McDonough

Keith Duane Lind

George Herbert Walbrun

Gregory K Jones

Daniel L King

Joseph Leboeuf

Gregory J Seeke

Victor Reggie Edgerton

Yury P Gerasimenko

Roland R Roy

John F Naber

Yu-Chong Tai

Susan J Harkema

A tubular dispensing container has a head whose shoulder is joined to a tubular body. The head and shoulder can be thin because they are provided with a plurality of ribs that extend axially from the neck to the lower end of the shoulder and rigidify the head. A head for a tubular dispensing container is provided having the above-mentioned ribs. Apparatus for forming the head has male or female tooling with axially grooves formed therein to form the ribs on the inside or outside surface of the head. Methods involve flowing moldable material along the grooves to provide the lower end of the shoulder of the head with enough moldable material at elevated temperature and pressure to form a good bond of the shoulder with the tubular body.

Method for forming an improved container

Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.

Structures of polymers made from single site catalysts

A dual dispense container, for example, a collapsible dual dispense tube, is provided that has a dual dispense orifice whose shape generally corresponds to a cloverleaf. The cloverleaf-like shape of the dual dispense orifice renders the dual dispense container capable of simultaneously dispensing two products with the same or similar flow characteristics in the same or substantially the same volumes.

Dual dispense container having cloverleaf orifice

Closure

Insect storing toy

Growing community of inventors

Wayne, NJ, United States of America

Douglas J Jackson