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US 10,647,082 B2Granted
Sandwich panel and method for manufacturing same
AssigneeLG Hausys, Ltd.
InventorsJi-Won Lim, Dong-Eung Kim, Sang-Hyun Rho
Life of this patent
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Abstract
Provided are a sandwich panel and a method for manufacturing same, the sandwich panel comprising: a flocking core layer; and skin layers stacked on either side of the flocking core layer, wherein the flocking core layer comprises a mixed fiber containing at least two types of fibers having different average cross sectional diameters.
Claims11
A sandwich panel comprising:
- a flocking core layer;
- and
- skin layers stacked on both sides of the flocking core layer,
- wherein the flocking core layer comprises:
- a layer formed of only a mixed fiber;
- and
- a layer of an adhesive comprising a planted end portion of the mixed fiber, wherein the planted end portion of the mixed fiber is stacked in the layer of the adhesive,
- wherein the mixed fiber comprises:
- a first fiber, wherein an average cross-sectional diameter of the first fiber ranges from 40 μm to 70 μm;
- and
- a second fiber, wherein an average cross-sectional diameter of the second fiber ranges from 10 μm to 20 μm,
- wherein the mixed fiber comprises one selected from the group consisting of a polyamide fiber, a polyester fiber, and a combination thereof, and
- wherein a volume ratio of the first fiber to the second fiber in the flocking core layer ranges from 4:1 to 9:1.
10 more elements
A method for manufacturing a sandwich panel comprising:
- preparing a mixed fiber containing at least two types of fibers having different average cross-sectional diameters, wherein
- the mixed fiber comprise:
- a first fiber, wherein an average cross-sectional diameter of the first fiber ranges from 40 μm to 70 μm;
- and
- a second fiber, wherein an average cross-sectional diameter of the second fiber ranges from 10 μm to 20 μm,
- the mixed fiber comprises one selected from the group consisting of a polyamide fiber, a polyester fiber, and a combination thereof;
- preparing two skin layers and applying an adhesive to one side of each of the skin layers;
- planting the mixed fiber on the adhesive of at least one skin layer of the two skin layers in which the adhesive is applied to one side;
- and
- stacking the two skin layers so that the respective sides applied with the adhesive face each other to thereby manufacture a sandwich panel having a flocking core layer between the two skin layers, wherein
- the flocking core layer comprises:
- a layer formed of only the mixed fiber;
- and
- a layer of the adhesive comprising a planted end portion of the mixed fiber, wherein the planted end portion of the mixed fiber is stacked in the layer of the adhesive, and
- a volume ratio of the first fiber to the second fiber in the flocking core layer ranges from 4:1 to 9:1.
12 more elements
Dependencies are inferred from the claim text.