John Edward Cornetta, 61132 Verdant Dr, Phoenixville, PA 19460

RE37526, Jan 22, 2002

Oct 8, 1999

09/416199

John Anthony Flint - Berkeley Heights NJ
Michael Jaffe - Maplewood NJ
M. Ishaq Haider - Mooresville NC
Joseph J. DiBiase - Nazareth PA
John Edward Cornetta - Missouri City TX

Celanese Acetate LLC - Charlotte NC

B32B 900

428364, 264345, 428392, 428395

The present invention discloses and claims a novel process for the formation of high denier as-spun and heat-treated filaments of a thermotropic liquid crystalline polymer. Preferred embodiments include process for the formation of as-spun and heat treated monofilaments of a few wholly aromatic polyesters and polyesteramides. The process involves (a) heating of a thermotropic liquid crystalline polymer to above its melting transition temperature; (b) passing said molten polymer through an extrusion chamber equipped with an extrusion capillary of an aspect ratio of greater than about 1 and less than about 15 to form a filament; and (c) winding the filament at a draw-down ratio of at least about 4. The filaments so formed are of at least 50 denier per filament (dpf) and feature essentially uniform molecular orientation across the cross-section. In a final optional step, the filaments are heat treated in stages to form filaments exhibiting excellent tensile properties.

5232113, Aug 3, 1993

Oct 11, 1991

7/774931

Charlotte H. Chen-Tsai - Murrysville PA
William L. Burton - Natrona Heights PA
John E. Cornetta - Munhall PA
David S. Hills - Pittsburgh PA

Aluminum Company of America - Pittsburgh PA

B65D 5300

220240

A cap for substantially gas-tight sealing engagement with a container wall having an opening therein circumscribed by a sealing surface has an end wall and a depending skirt with a portion for securing the cap to the container wall. The cap is preferably composed of about 94. 5 to 99. 89 weight percent low density polyethylene and may have a polybutylene copolymer present in an amount of about 0. 01 to 5. 0 weight percent. A mold release agent may be employed. A tab for manual engagement to rotate the cap between a container wall sealing surface engaging position and a storage position may be provided. The cap has a vent region provided by a weakened zone that is preferably located on or near the tab. The cap is adapted once in gas-tight sealing engagement with the sealing surface of the container wall to vent automatically in the weakened zone upon predetermined internal container pressure being attained and to subsequently reseal automatically. A container in combination with such a cap is also disclosed.