CN105131566A - Polyurethane combined material for furniture sponge and preparation method thereof - Google Patents
Polyurethane combined material for furniture sponge and preparation method thereof Download PDFInfo
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- CN105131566A CN105131566A CN201510368746.2A CN201510368746A CN105131566A CN 105131566 A CN105131566 A CN 105131566A CN 201510368746 A CN201510368746 A CN 201510368746A CN 105131566 A CN105131566 A CN 105131566A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the field of polyurethane, and concretely relates to a polyurethane combined material for furniture sponge and a preparation method thereof. The combined material is prepared by mixing a composition A and a composition B, the composition A is prepared from polyether polyol, polymer polyol, a cross-linking agent, a foaming agent, a foam stabilizer , a pore-opening agent and a catalyst, and the composition B is prepared from polyether polyol, an isocyanate and a pore-opening agent. When the combined material is used, the composition A and the composition B are mixed according to the weight ratio of 100:75-110 and injected into a die, so that high-bearing low-density furniture sponge is prepared. The combined material employs low-volatilization low-atomization raw materials, and possesses advantages of low smell, good fluidity, wide applicable temperature scope and the like. The furniture sponge prepared from the combined material possesses the advantages of being basically odorless, safe, nontoxic, free of defects on the surface, good in elasticity, excellent in handfeel, low in density, good in bearing property and the like. The invention also provides a preparation method for the combined material, and the technology is reasonable.
Description
Technical field
The invention belongs to polyurethane field, be specifically related to a kind of furniture sponge polyurethane combined material and preparation method thereof.
Background technology
Since reform and opening-up, furniture industry fast development, material category is also on the increase, and wherein, is that the advantages such as the feel of furniture with its excellence of seat cushion and backrest, preferably rebound resilience have won liking of people with polyurethane foam.All the time, the thermal cutting that furniture polyurethane foam is isocyanate component by TDI is made, although this foam has excellent feel and good rebound resilience, load can not meet requirement, need to design metal spring below to provide load in sponge.Although polyurethane moulding foam can provide excellent load, higher density, makes the cost of moulded foam significantly promote, and especially with the moulded foam that environmental protection MDI is isocyanate component, density is generally all at 50kg/m
3above.And, along with the enhancing gradually of people's awareness of safety and environmental consciousness, more and more higher requirement is proposed to the smell of furniture polyurethane foam and hypotoxicity, traditional high volatile volatile, high smell, the A material containing HCFC-141B pneumatogen and the TDI type B material containing vapour pressure higher (1.33Pa, 20 DEG C) can not meet the requirement of contemporary people.So develop a kind of environment-protecting polyurethane premixed systems produced for high-mechanic low density furniture sponge, it is also an important topic in recent years on furniture sponge market.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide the environment-protecting polyurethane premixed systems of a kind of high-mechanic low density furniture sponge production, the advantages such as the furniture sponge adopting this premixed systems to prepare has odorlessness, safety non-toxic, epidermis zero defect, good springiness, soft handle, density is low, load is good; The present invention also provides its preparation method.
Furniture sponge polyurethane combined material of the present invention, is mixed by component A and B component:
Component A is made up of the raw material of following mass fraction:
B component is made up of the raw material of following mass fraction:
Polyether glycol: 10-20 part
Isocyanic ester: 75-89 part
Pore-creating agent: 1.0-5 part.
Wherein:
The polyether glycol of component A and B component is all take glycerine as initiator, proportion of primary OH groups >=75%, number-average molecular weight is 4500-7000, with the polyoxytrimethylene trivalent alcohol of ethylene oxide-capped, preferred FA-703 is (commercially available, can Leah polyether glycol Nanjing company limited) or KE-810 (commercially available, can Leah polyether glycol Nanjing company limited).
Polymer polyatomic alcohol is polyethers based on vinyl polyether triol, with vinylbenzene or acrylonitrile graft copolymer, the polymer polyatomic alcohol of solid content >=30%, preferred FA-3630 is (commercially available, can Leah polyether glycol Nanjing company limited) or KE-2045 (commercially available, can Leah polyether glycol Nanjing company limited).
Linking agent is ethylene glycol (EG), glycol ether (DEG), 1,4-butyleneglycol (1,4-BG), 1, one or more in ammediol (1,3-PDO), dipropylene glycol (DPG), trolamine (TEA), diethanolamine (DEOA) or glycerine.
Whipping agent is water.
Suds-stabilizing agent is polysiloxane-olefin oxide segmented copolymer, preferred AK-7703 (commercially available prod, Jiangsu Maysta Chemical Co., Ltd.).
Catalyzer is at least two kinds in low fogging catalyzer, response type catalyzer or delaying type catalyzer.Catalyzer is preferably at least two kinds in MP601, MP602, EF600, EF700 or DMEA; MP601, MP602 are that gas chemical company of the U.S. produces, and EF600, EF700 are that Mai Tu company of the U.S. produces, and DMEA is commercially available response type catalyzer dimethylethanolamine.
Isocyanic ester is pure MDI, in Carbodiimide-Modified MDI, MDI-50 or polymeric MDI (being commonly called as thick MDI) at least two kinds.
Pore-creating agent is GK-350D, Shanghai Gaoqiao petrochemical industry commercially available prod.
The preparation method of furniture sponge polyurethane combined material of the present invention, comprises the following steps:
Component A: first polyether glycol, polymer polyatomic alcohol are dropped into answer in still and stir, then add pore-creating agent, linking agent, catalyzer, suds-stabilizing agent, whipping agent successively, at ambient temperature, rotating speed is 60-100 rev/min, stir 1-2 hour, obtain component A product;
B component: will drop in reactor under polyether glycol and pore-creating agent normal temperature, stirring is warming up to 90-100 DEG C, dewater under vacuum condition degassed 2-3 hour, then 30 DEG C are cooled to, add isocyanic ester, at 80-85 DEG C of reaction 2-3 hour, when detection isocyanato content reaches 23.0-28.5%, cooling, discharging.Cooling is for being cooled to less than 40 DEG C.
During use, A, B component material are mixed by the mass ratio of A:B=100:75-110, machinery injects mould, and sealing, die sinking after 7-8 minute, can obtain high-mechanic low density furniture sponge.
In sum, the present invention has the following advantages:
(1) technical problem to be solved by this invention is to provide a kind of environment-protecting polyurethane premixed systems for the production of high-mechanic low density furniture sponge, this premixed systems is not containing toxic substance or pollution substances such as TDI, heavy metal catalyst, 141B, volatility is low, safety and environmental protection; This premixed systems selects low volatilization, low fogging class raw material, has the advantages such as smell is low, good fluidity, Applicable temperature are wide.
(2) advantages such as furniture sponge has basic odorlessness, safety non-toxic, epidermis zero defect, good springiness, soft handle, density is low, load is good adopting premixed systems of the present invention to prepare.
(3) A, B premixed systems of the present invention reacts at normal temperatures, and speed of response is fast, within 7-8 minute, gets final product die sinking, without the three wastes, and constant product quality.This polyurethane combined material product quality indicator provided by the invention after testing, VOC examination criteria is NESM0402 [2005-1], can reach:
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
Component A is made up of the raw material of following mass fraction:
B component is made up of the raw material of following mass fraction:
Component A: load weighted FA-703, FA3630 are dropped in reactor and stirs, then add load weighted GK350D, DEOA, MP601, MP602, AK7703, H successively respectively
2o, after stirred at ambient temperature mixes 1 hour, obtain component A qualified product.
B component: add reactor by under FA703 and GK350D room temperature, stirring is warming up to 95 DEG C, degassed 2.5 hours of vacuum hydro-extraction, when being cooled to 30 DEG C, add MDI-50, when being warming up to 82 DEG C, react 2.5 hours, after detection NCO% content reaches set(ting)value (28.1 ± 0.3) %, add thick MDI again, stir and be cooled to less than 40 DEG C.
During use, by A, B component material by A:B=100:90 weight proportion mixing inject mould high-mechanic low density furniture sponge goods.
Embodiment 2
Component A is made up of the raw material of following mass fraction:
B component is made up of the raw material of following mass fraction:
Component A: load weighted KE810, FA3630 are dropped in reactor and stirs, then add load weighted GK350D, DEOA, EF600, EF700, AK7703, H successively respectively
2o, after being at room temperature uniformly mixed 1 hour, obtains component A qualified product.
B component: add reactor by under FA703 and GK350D room temperature, stirring is warming up to 100 DEG C, dewater under vacuum condition degassed 2 hours, when being cooled to 30 DEG C, add pure MDI, be warming up to 85 DEG C of reactions 2 hours, after detection reaches setting NCO% content (23.3 ± 0.3) %, add thick MDI again, stir and be cooled to less than 40 DEG C.
During use, by A, B component material by A:B=100:90 weight proportion mixing inject mould polyurethane foam toy.
Embodiment 3
Component A is made up of the raw material of following mass fraction:
Take glycerine as initiator, proportion of primary OH groups 75%, number-average molecular weight is 6000, the polyoxytrimethylene trivalent alcohol by ethylene oxide-capped: 55
Polyethers based on vinyl polyether triol, with vinylbenzene or acrylonitrile graft copolymer, the polymer polyatomic alcohol of solid content 30%: 35
B component is made up of the raw material of following mass fraction:
Take glycerine as initiator, proportion of primary OH groups 75%, number-average molecular weight is 6000, the polyoxytrimethylene trivalent alcohol by ethylene oxide-capped: 15
Component A: KE810, the KE2045 based on formula ratio is dropped in reactor and stirs, then add load weighted GK350D, DEOA, DEG, MP601, MP602, AK7703, H respectively
2o, after being uniformly mixed 1 hour at normal temperatures, obtains component A qualified product.
B component: add reactor by under KE810 and GK350D normal temperature, stir at rising to 90 DEG C, dewater under vacuum condition degassed 3 hours, add pure MDI, MDI-50, liquefied mdi successively when being cooled to 30 DEG C, be warming up to 80 DEG C, react 3 hours, after detection reaches setting NCO% content (26.15 ± 0.3) %, add thick MDI again, stir and be cooled to 35 DEG C.During use, by A, B component material by A:B=100:90 weight proportion mixing inject mould polyurethane foam toy.The sponge product prepared by embodiment 1-3 carries out performance test, and test result is in table 1.
The performance test results of the sponge product that table 1 embodiment 1-3 prepares
Note: VOC examination criteria NESM0402 [2005-1].
Claims (10)
1. a furniture sponge polyurethane combined material, is characterized in that: be mixed by component A and B component:
Component A is made up of the raw material of following mass fraction:
B component is made up of the raw material of following mass fraction:
Polyether glycol: 10-20 part
Isocyanic ester: 75-89 part
Pore-creating agent: 1.0-5 part.
2. furniture sponge polyurethane combined material according to claim 1, is characterized in that: polyether glycol take glycerine as initiator, proportion of primary OH groups >=75%, and number-average molecular weight is 4500-7000, with the polyoxytrimethylene trivalent alcohol of ethylene oxide-capped.
3. furniture sponge polyurethane combined material according to claim 1, is characterized in that: polymer polyatomic alcohol is polyethers based on vinyl polyether triol, with vinylbenzene or acrylonitrile graft copolymer, and the polymer polyatomic alcohol of solid content >=30%.
4. furniture sponge polyurethane combined material according to claim 1, it is characterized in that: linking agent is ethylene glycol, glycol ether, 1, one or more in 4-butyleneglycol, 1,3-PD, dipropylene glycol, trolamine, diethanolamine or glycerine.
5. furniture sponge polyurethane combined material according to claim 1, is characterized in that: whipping agent is water.
6. furniture sponge polyurethane combined material according to claim 1, is characterized in that: suds-stabilizing agent is polysiloxane-olefin oxide segmented copolymer.
7. furniture sponge polyurethane combined material according to claim 1, is characterized in that: catalyzer is at least two kinds in low fogging catalyzer, response type catalyzer or delaying type catalyzer.
8. furniture sponge polyurethane combined material according to claim 1, is characterized in that: isocyanic ester is at least two kinds in pure MDI, Carbodiimide-Modified MDI, MDI-50, polymeric MDI.
9. furniture sponge polyurethane combined material according to claim 1, is characterized in that: pore-creating agent is GK350D.
10. a preparation method for the arbitrary described furniture sponge polyurethane combined material of claim 1-9, is characterized in that: comprise the following steps:
Component A: first polyether glycol, polymer polyatomic alcohol are dropped into answer in still and stir, then add pore-creating agent, linking agent, catalyzer, suds-stabilizing agent, whipping agent successively, at ambient temperature, rotating speed is 60-100 rev/min, stir 1-2 hour, obtain component A product;
B component: will drop in reactor under polyether glycol and pore-creating agent normal temperature, stirring is warming up to 90-100 DEG C, dewater under vacuum condition degassed 2-3 hour, then 30 DEG C are cooled to, add isocyanic ester, at 80-85 DEG C of reaction 2-3 hour, when detection isocyanato content reaches 23.0-28.5%, cooling, discharging.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368746.2A CN105131566A (en) | 2015-06-29 | 2015-06-29 | Polyurethane combined material for furniture sponge and preparation method thereof |
| PCT/CN2016/082293 WO2017000688A1 (en) | 2015-06-29 | 2016-05-17 | Polyurethane composed material for furniture sponge and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368746.2A CN105131566A (en) | 2015-06-29 | 2015-06-29 | Polyurethane combined material for furniture sponge and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105131566A true CN105131566A (en) | 2015-12-09 |
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|---|---|---|---|
| CN201510368746.2A Pending CN105131566A (en) | 2015-06-29 | 2015-06-29 | Polyurethane combined material for furniture sponge and preparation method thereof |
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| CN (1) | CN105131566A (en) |
| WO (1) | WO2017000688A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105646820A (en) * | 2016-02-24 | 2016-06-08 | 湖北祥源新材科技股份有限公司 | Microporous PU (polyurethane) material |
| CN105646837A (en) * | 2016-02-24 | 2016-06-08 | 湖北祥源新材科技股份有限公司 | Preparation method of ultrathin polyurethane material |
| WO2017000688A1 (en) * | 2015-06-29 | 2017-01-05 | 山东一诺威聚氨酯股份有限公司 | Polyurethane composed material for furniture sponge and preparation method therefor |
| CN106397711A (en) * | 2016-09-22 | 2017-02-15 | 上海馨源新材料科技有限公司 | Low-density high-bearing sponge and manufacturing process |
| CN106478912A (en) * | 2016-09-22 | 2017-03-08 | 上海馨源新材料科技有限公司 | A kind of medical sponge formula and manufacture craft |
| CN106632982A (en) * | 2016-12-31 | 2017-05-10 | 山东诺威聚氨酯股份有限公司 | Polyurethane mixed component for soft volleyball and preparation method of polyurethane mixed component |
| CN106866928A (en) * | 2017-02-24 | 2017-06-20 | 耿佃勇 | Polyurethane high intensity hydrophily sponge and preparation method thereof |
| CN109456457A (en) * | 2018-11-19 | 2019-03-12 | 江苏钟山化工有限公司 | It is used to prepare the sponge material and preparation method thereof of color inhibition cotton pads |
| CN109535695A (en) * | 2018-11-30 | 2019-03-29 | 沈阳金杯安道拓汽车部件有限公司 | The small seat polyurethane foam material and its preparation method and application of the low volatilization compressed residual variable of high fire-retardance |
| CN110003437A (en) * | 2019-04-24 | 2019-07-12 | 东莞市腾崴塑胶制品有限公司 | A kind of tear-resistant sponge and preparation method |
| CN110016313A (en) * | 2019-03-04 | 2019-07-16 | 核工业第八研究所 | A kind of foaming sealant polyurethane combined material and preparation method thereof |
| CN112608441A (en) * | 2020-12-17 | 2021-04-06 | 广州皇朝家具有限公司 | Polyurethane material for furniture foam cotton and preparation method thereof |
| CN113831500A (en) * | 2021-09-22 | 2021-12-24 | 佛山市集北龙华海绵制造有限公司 | Moisture absorption breathable sponge and curing equipment thereof |
| CN115197386A (en) * | 2022-06-01 | 2022-10-18 | 南京金栖化工集团有限公司 | Preparation method and application of hydrophilic polyurethane sponge |
| CN115466592A (en) * | 2022-11-02 | 2022-12-13 | 山东一诺威聚氨酯股份有限公司 | High-weather-resistance non-yellowing adhesive and preparation method thereof |
| CN116836366A (en) * | 2023-08-10 | 2023-10-03 | 东莞市腾崴塑胶制品有限公司 | Super soft sponge |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108610464A (en) * | 2018-05-22 | 2018-10-02 | 广汉市新鸿海绵有限公司 | A kind of dedicated high rigidity shaping sponge of sofa and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017000688A1 (en) * | 2015-06-29 | 2017-01-05 | 山东一诺威聚氨酯股份有限公司 | Polyurethane composed material for furniture sponge and preparation method therefor |
| CN105646820A (en) * | 2016-02-24 | 2016-06-08 | 湖北祥源新材科技股份有限公司 | Microporous PU (polyurethane) material |
| CN105646837A (en) * | 2016-02-24 | 2016-06-08 | 湖北祥源新材科技股份有限公司 | Preparation method of ultrathin polyurethane material |
| CN105646837B (en) * | 2016-02-24 | 2018-08-17 | 湖北祥源新材科技股份有限公司 | A kind of preparation method of ultra-thin polyurethane material |
| CN105646820B (en) * | 2016-02-24 | 2018-09-25 | 湖北祥源新材科技股份有限公司 | A kind of microvoid polyurethane material |
| CN106397711A (en) * | 2016-09-22 | 2017-02-15 | 上海馨源新材料科技有限公司 | Low-density high-bearing sponge and manufacturing process |
| CN106478912A (en) * | 2016-09-22 | 2017-03-08 | 上海馨源新材料科技有限公司 | A kind of medical sponge formula and manufacture craft |
| CN106632982A (en) * | 2016-12-31 | 2017-05-10 | 山东诺威聚氨酯股份有限公司 | Polyurethane mixed component for soft volleyball and preparation method of polyurethane mixed component |
| CN106866928A (en) * | 2017-02-24 | 2017-06-20 | 耿佃勇 | Polyurethane high intensity hydrophily sponge and preparation method thereof |
| CN109456457A (en) * | 2018-11-19 | 2019-03-12 | 江苏钟山化工有限公司 | It is used to prepare the sponge material and preparation method thereof of color inhibition cotton pads |
| CN109535695A (en) * | 2018-11-30 | 2019-03-29 | 沈阳金杯安道拓汽车部件有限公司 | The small seat polyurethane foam material and its preparation method and application of the low volatilization compressed residual variable of high fire-retardance |
| CN110016313A (en) * | 2019-03-04 | 2019-07-16 | 核工业第八研究所 | A kind of foaming sealant polyurethane combined material and preparation method thereof |
| CN110003437A (en) * | 2019-04-24 | 2019-07-12 | 东莞市腾崴塑胶制品有限公司 | A kind of tear-resistant sponge and preparation method |
| CN112608441A (en) * | 2020-12-17 | 2021-04-06 | 广州皇朝家具有限公司 | Polyurethane material for furniture foam cotton and preparation method thereof |
| CN113831500A (en) * | 2021-09-22 | 2021-12-24 | 佛山市集北龙华海绵制造有限公司 | Moisture absorption breathable sponge and curing equipment thereof |
| CN115197386A (en) * | 2022-06-01 | 2022-10-18 | 南京金栖化工集团有限公司 | Preparation method and application of hydrophilic polyurethane sponge |
| CN115466592A (en) * | 2022-11-02 | 2022-12-13 | 山东一诺威聚氨酯股份有限公司 | High-weather-resistance non-yellowing adhesive and preparation method thereof |
| CN115466592B (en) * | 2022-11-02 | 2023-03-24 | 山东一诺威聚氨酯股份有限公司 | High-weather-resistance non-yellowing adhesive and preparation method thereof |
| CN116836366A (en) * | 2023-08-10 | 2023-10-03 | 东莞市腾崴塑胶制品有限公司 | Super soft sponge |
| CN116836366B (en) * | 2023-08-10 | 2024-01-30 | 东莞市腾崴塑胶制品有限公司 | Super soft sponge |
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| WO2017000688A1 (en) | 2017-01-05 |
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