Bathtub with cushion and preparation method thereof
AssigneeKyung-Jun Kim
InventorsKyung-Jun Kim, Jong-Kwan Lee, Kyung-Jun Kim
Life of this patent
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Abstract
The present invention relates to a bathtub with cushion and a preparation method thereof which comprises an external structure layer which forms an external appearance of the bathtub; a foaming layer which is formed on the external structure layer; and a elastic protecting layer which is selected from groups of a rapid-hardening polyurea resin hardened layer, a polyurethane-urea resin hardened layer and an unfoaming painted layer, on the foaming layer.
Claims14
A bathtub with cushion comprising:
- an external structure layer which forms an external appearance of the bathtub;
- a foaming layer which is formed on the external structure layer;
- and
- a elastic protecting layer which is selected from groups of a rapid-hardening polyurea resin hardened layer, a polyurethane-urea resin hardened layer and an unfoaming painted layer, on the foaming layer.
A preparation method of a bathtub comprising:
- a first operation of forming an external structure layer forming an external appearance of the bathtub;
- a second operation of forming a mold-release agent layer having a bathtub forming surface corresponding to an internal shape of the bathtub and a flange extending from a circumference of the bathtub forming surface to the outside, on an external surface of an internal mold;
- and
- a third operation of forming a semi-rigid foam layer having a soft foam layer and an unfoaming painted layer formed sequentially between the external structure layer and the mold-release agent layer by being injected in a space between the external structure layer and the mold-release layer.
A preparation method of a bathtub with cushion in which a cushion surface coating layer, a elastic protecting layer, a foam layer and an external structure layer are sequentially formed from an internal surface, the preparation method comprising forming a elastic protecting layer with a hardened layer comprising a rapid-hardening polyurea resin or polyurethane-urea resin.
Dependencies are inferred from the claim text.