Foam element having molded gas passageways and process for production thereof
First Claim
Patent Images
1. A foam element comprising an isocyanate-based foam matrix having surface, at least a portion of the surface comprising at least one channel having a channel surface, the channel surface being coated with a substantially fluid impermeable material.
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Abstract
In one of its aspects, the invention relates to a foam element comprising an isocyanate-based foam matrix having surface, at least a portion of the surface comprising at least one channel having a channel surface, the channel surface being coated with a substantially fluid impermeable material. The foam element is particularly useful in a climate-control vehicular (e.g., automobile) seat.
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Citations
44 Claims
- 1. A foam element comprising an isocyanate-based foam matrix having surface, at least a portion of the surface comprising at least one channel having a channel surface, the channel surface being coated with a substantially fluid impermeable material.
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25. A process for producing a foam element in a mold comprising a first mold half and a second mold, the first mold half comprising at least one ridge element, the first mold half and the second mold half being engageable to define a mold cavity, the process comprising the steps of:
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(i) substantially completely covering the at least one ridge element with a substantially fluid impermeable material;
(ii) dispensing a liquid foamable composition in at least one of the first mold half and the second mold half;
(iii) closing the first mold half and the second mold half;
(iv) expanding the liquid foamable composition to substantially completely fill the mold cavity to produce the foam element. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A mold for producing a foam element, the mold comprising a first mold half and a second mold, the first mold half and the second mold half being engageable to define a mold cavity, the first mold half comprising at least one ridge element and the second mold half comprising at least one post, the least one ridge element and the at least one post oriented to substantially abut one another upon engagement of the first mold half and the second half.
Specification