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US 11,628,637 B2Granted
Hot press cushioning material
AssigneeYamauchi Corporation
InventorsAkira Yoshida, Shuhei Kouno
Life of this patent
Estimating the term…
Abstract
A hot press cushioning material includes a cushioning material body in the form of a plate; and surface materials provided on the front and back sides of the cushioning material body. The surface material includes a core layer composed of a heat resistant fiber material for a nonwoven structure, and a front-side resin layer covering the entire front side of the core layer. The core layer has an air permeability of 5 cm3·cm−2·s−1 or less and a bulk density of 0.8 g/cm3 or more.
Claims10
A hot press cushioning material, comprising:
- a cushioning material body in a form of a plate;
- and
- surface materials provided on front and back sides of the cushioning material body, wherein
- the surface material includes a core layer composed of a heat resistant fiber material for a nonwoven structure, and a front-side resin layer covering an entire front side of the core layer,
- the front-side resin layer has a first surface facing the core layer, and a second surface facing away from the core layer, and the second surface of the front-side resin layer has surface irregularities corresponding to irregularities of fibers of the heat resistant fiber material, and
- the core layer has an air permeability of 5 cm3·cm−2·s−1 or less and a bulk density of 0.8 g/cm3 or more.
3 more elements
A hot press cushioning material, comprising:
- a cushioning material body in a form of a plate;
- and
- surface materials provided on front and back sides of the cushioning material body, wherein
- the surface material includes a core layer composed of a heat resistant fiber material for a nonwoven structure, and a front-side resin layer covering an entire front side of the core layer,
- the front-side resin layer contains a conductive filler, and
- the core layer has an air permeability of 5 cm3·cm−2·s−1 or less and a bulk density of 0.8 g/cm3 or more.
3 more elements
Dependencies are inferred from the claim text.