US PATENT SUBCLASS 264 / 171.26
.~.~ Producing hollow composite

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

165  DF  FORMING CONTINUOUS OR INDEFINITE LENGTH WORK {8}
171.1  DF  .~ Layered, stratified traversely of length, or multiphase macrostructure containing material (e.g., conjugate, composite, islands-in-sea, core-sheath, etc.) {8}
171.26.~.~ Producing hollow composite {4}
171.27  DF  .~.~.~> Having three or more layers of at least two different materials
171.28  DF  .~.~.~> Polyamide (e.g., nylon,, etc.) or addition polymer of at least one monoethylenically unsaturated monomer (e.g., polyethylene, polypropylene, polystyrene, etc.) containing layer
171.29  DF  .~.~.~> Including rotation of shaping surface or material being shaped
172.1  DF  .~.~.~> Having particular noncircular cross-section (e.g., T-configured, etc.)

DEFINITION

Classification: 264/171.26

Producing hollow composite:

(under subclass 171.1) Processes wherein the composite formed is hollow.

SEE OR SEARCH THIS CLASS, SUBCLASS:

166, for processes in which a core mold may be formed or the core mold employed in the process is removed or destroyed, wherein at least for an interval of time, the mold and the molding material may be in a composite relationship.

172.11, for processes of producing nonhollow composite stands, filaments or threads.

SEE OR SEARCH CLASS

427, Coating Processes,

230+, for processes of coating the interior of hollow articles.