US PATENT SUBCLASS 264 / 46.4
.~.~ Shaping material and uniting to a preform or solidified layer

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

41  DF  PORE FORMING IN SITU (E.G., FOAMING, ETC.) {6}
45.1  DF  .~ Composite article making {7}
46.4.~.~ Shaping material and uniting to a preform or solidified layer {5}
46.5  DF  .~.~.~> Uniting spaced preforms or solidified layers by introducing foamable material therebetween
46.6  DF  .~.~.~> Against inner surface of a hollow preform or solidified layer
46.7  DF  .~.~.~> Utilizing metal part or reinforcement
46.8  DF  .~.~.~> Introducing preform into mold by thermoforming operation (e.g., vacuum forming, etc.)
46.9  DF  .~.~.~> On a preform or solidified layer which is spherical, toroidal, or annular

DEFINITION

Classification: 264/46.4

(under subclass 45.1) Processes in which a molding material remains united with a preform or solidified layer to constitute a composite article, one of whose layers is porous.

(1) Note. Solidified layer includes any collection of material given form by a shape defining means and possessing at least a minimal degree of cohesiveness, for example, layers formed by slush molding, spraying or layup on a mold or more generally any material that would be a preform, but for the fact that it remains in the mold in which it is formed.