Compound type polyurethane toilet seat and preparation technology thereof

A preparation process and polyurethane technology, applied in the field of sanitary ware, can solve the problems of unsightly product appearance, easy peeling time, increase processing cost, etc., achieve simple and convenient processing process, improve use quality and comfort, save secondary The effect of the molding process

Active Publication Date: 2015-04-29
FINEHOPE POLYUREHTHANE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the toilet seat, as a part in direct contact with the human skin, is mostly injection molded from plastic materials. The disadvantages are: 1. The human body feels cold when sitting on the toilet seat in winter; 2. The material of the toilet seat is too hard, making it uncomfortable to sit on. ; 3. When the toilet seat is put down, the toilet seat is easy to collide with the base, thus making noise; 4. The plastic material is easy to yellow and age, resulting in unsightly appearance and performance degradation of the product
[0003] In the prior art, polyurethane toilet seat includes two types, one type is embedded polyurethane seat cushion, such as patent number 201120402590.2, the embedded polyurethane foam toilet seat cushion discloses that the seat cushion bracket is used as an insert, and the seat cushion bracket and polyurethane foam The seat cushion is integrally formed and covered in the polyurethane foam cushion, which mainly has the following problems: 1. The adhesion between the polyurethane foam cushion and the cushion support is poor, it is easy to peel off after a long time, and the service life is short; 2. Due to the It is wrapped in polyurethane foam cushion, which increases the processing cost
Another type is composite polyurethane toilet seat, such as patent No. 201120402699.6, the composite polyurethane foam flush toilet seat discloses that the polyurethane foam seat and seat bracket are processed separately, and after processing, the two are bonded together Together, it mainly has the following problems: 1. The composite polyurethane toilet seat is secondary molding, and the polyurethane needs to be foamed and molded first, and then bonded to the seat bracket. The process is complicated and the steps are numerous, which undoubtedly increases the cost of use; 2. The bonding edge of the polyurethane foam seat cushion and the cushion support is easy to be layered and cracked, especially when the toilet seat is frequently turned over or in cold weather, the adhesion of the polyurethane foam seat cushion and the cushion support is affected, making the Polyurethane foam cushions detached from the cushion support, reducing the overall quality of the product

Method used

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  • Compound type polyurethane toilet seat and preparation technology thereof
  • Compound type polyurethane toilet seat and preparation technology thereof
  • Compound type polyurethane toilet seat and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Component A and component B were reacted at a temperature of 30° C. to obtain the polyurethane of this embodiment. Among them, component A is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol (70 parts of polyether polyol (Mn=5000), 30 parts of polymer polyol), 5 parts of chain extender (B 3.5 parts of diol, 2 parts of 1,4 butanediol), 1.2 parts of catalyst (1.2 parts of amine catalyst), 0.75 parts of surfactant (0.75 parts of silane surfactant), 15 parts of blowing agent (one fluoro di Chloroethane HCFC-141b 15 parts); B component is isocyanate, and the mass ratio of B component / A component is 0.35.

[0054] The technology for preparing composite polyurethane toilet seat cushion comprises the following steps:

[0055] Step 1, spraying a layer of release agent and a layer of in-mold paint successively in the cavity of mold 3;

[0056] Step 2, use industrial alcohol to clean the surface of cushion bracket 2;

[0057] Step 3, p...

Embodiment 2

[0066] Component A and component B were reacted at a temperature of 40° C. to obtain the polyurethane of this embodiment. Among them, component A is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol (80 parts of polyether polyol (Mn=5000), 20 parts of polymer polyol), 3 parts of ethylene glycol, 1 , 2 parts of 4 butanediol, 2 parts of amine catalyst, 0.5 part of surfactant, 20 parts of blowing agent; B component is isocyanate, and the mass ratio of B component / A component is 0.25.

[0067] The technology for preparing composite polyurethane toilet seat cushion comprises the following steps:

[0068] Step 1, spraying a layer of release agent and a layer of in-mold paint successively in the cavity of mold 3;

[0069] Step 2, use industrial alcohol to clean the surface of cushion bracket 2;

[0070] Step 3, polishing or sandblasting the cushion support 2, and blowing the dust on the surface of the treated cushion support 2;

[0071] St...

Embodiment 3

[0079] Component A and component B were reacted at a temperature of 20° C. to obtain the polyurethane of this embodiment. Among them, component A is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol, 3.5 parts of ethylene glycol, 1.5 parts of 1,4 butanediol, 0.8 parts of amine catalyst, 0.75 parts of silane surfactant Parts, 12 parts of fluorodichloroethane HCFC-141b; component B is isocyanate, and the mass ratio of B / A is 0.55.

[0080] The technology for preparing composite polyurethane toilet seat cushion comprises the following steps:

[0081] Step 1, spraying a layer of release agent and a layer of in-mold paint successively in the cavity of mold 3;

[0082] Step 2, use industrial alcohol to clean the surface of cushion bracket 2;

[0083] Step 3, polishing or sandblasting the cushion support 2, and blowing the dust on the surface of the treated cushion support 2;

[0084] Step 4, heat-treat the cleaned cushion bracket 2 at a t...

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Abstract

The invention discloses a compound type polyurethane toilet seat, including a surface coating layer, a positioning structure and a seat cushion support, wherein the surface coating layer of made of polyurethane and seamlessly wraps the outer surface of the seat cushion support by the positioning structure. The preparation technology includes the steps of: 1, spraying mold release agents and intramode paint in a mold cavity; 2, cleaning the surface of the seat cushion support; 3, polishing or abrasive blasting; 4, thermally processing seat cushion support; 5, spraying the mold release agent in the mold cavity, and installing the seat cushion support in the mold cavity; 6, injecting polyurethane material into the mold cavity, and shaking the mold; 7, foaming the polyurethane material; 8, after the polyurethane is cured in the mold, opening the mold to take out the product, and thereby completing the whole preparation technology of the product. The compound type polyurethane toilet seat achieves the one-time composite molding of the polyurethane toilet seat, optimizes the processing technology, saving the use cost, increases the bonding intensity of the product, and improves the use quality of the product.

Description

technical field [0001] The invention belongs to the field of sanitary ware, in particular to a composite polyurethane toilet seat and a preparation process thereof. Background technique [0002] The toilet is an indispensable sanitary equipment in the daily life of modern people. The toilet is composed of three parts: the toilet cover, the toilet seat and the base. Among them, the toilet seat, as a part in direct contact with the human skin, is mostly injection molded from plastic materials. The disadvantages are: 1. The human body feels cold when sitting on the toilet seat in winter; 2. The material of the toilet seat is too hard, making it uncomfortable to sit on. 3. When the toilet seat is put down, the toilet seat is likely to collide with the base, thereby making noise; 4. The plastic material is prone to yellowing and aging, resulting in unsightly appearance and performance degradation of the product. Therefore, some toilet seats are made of polyurethane to overcome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47K13/14A47K13/02C08G18/66C08G18/48C08G18/32C08J9/14B29C44/12B29B11/00
CPCA47K13/02B29C44/08B29C44/1271B29C45/14311B29C45/14336B29C2045/14877B29K2075/00B29K2623/12B29K2627/06B29K2655/02B29K2705/00B29K2711/14B29K2995/0063B29L2031/7694
Inventor 徐小虎
Owner FINEHOPE POLYUREHTHANE PROD
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