WO2001070838A1 - Mousse souple de polyurethane - Google Patents
Mousse souple de polyurethane Download PDFInfo
- Publication number
- WO2001070838A1 WO2001070838A1 PCT/JP2001/001800 JP0101800W WO0170838A1 WO 2001070838 A1 WO2001070838 A1 WO 2001070838A1 JP 0101800 W JP0101800 W JP 0101800W WO 0170838 A1 WO0170838 A1 WO 0170838A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- foam
- flexible polyurethane
- polyurethane foam
- weight
- bond
- Prior art date
Links
Classifications
-
- 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
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
-
- 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
- C08J2205/00—Foams characterised by their properties
- C08J2205/06—Flexible foams
Definitions
- the present invention relates to a flexible polyurethane foam suitable as an edge material of a diaphragm for a speaker used for various audio equipment and the like, and more particularly to a flexible polyurethane foam having excellent resistance to moist heat deterioration.
- Edge materials of diaphragms for speakers such as various types of audio equipment should have characteristics that can provide excellent sound quality, and should also have excellent moisture resistance and heat resistance.
- a woven fabric coated or impregnated with a resin such as SBR or NBR, or a flexible polyurethane foam has been often used.
- Japanese Patent Publication No. 8-333095 describes a soft polyurethane foam with improved resistance to moist heat degradation and acoustic properties.
- a soft polyurethane foam is impregnated with a water repellent.
- the moisture resistance and heat resistance of these flexible polyurethane foams should be further improved. Disclosure of the invention
- An object of the present invention is to provide a flexible polyurethane foam having extremely excellent resistance to moist heat deterioration.
- An object of the present invention is to provide a flexible polyurethane foam suitable for a speaker edge.
- the flexible polyurethane foam of the present invention is a flexible polyurethane foam obtained by mixing and foaming a foam raw material containing a hydroxyl compound, a polyisocyanate, a foaming agent, a foam stabilizer, and a catalyst. ⁇
- the molar ratio of rare bonds is 7 times or less.
- Urethane bond / urea bond (molar ratio) is the ratio of the number of moles of urethane bonds to the number of moles of urea bonds calculated as follows.
- ⁇ urethane bond Z ⁇ rare bond (molar ratio) will be 13.67 as calculated below.
- Hydroxyl compound A (3 functional groups, average molecular weight 300 0): 100 Hydroxyl compound B (3 functional groups, average molecular weight 1 3 4): 5
- Such a flexible polyurethane film having a urethane bond Z ⁇ rare bond (molar ratio) has a low molecular weight hydroxy compound of 0.5 part per 100 parts by weight of polyether polyol as a hydroxyl compound in the foam raw material. It can be realized by mixing up to 20 parts by weight.
- the resistance to wet heat deterioration can be further improved.
- the content of water as a foaming agent in the foam raw material is preferably 1.0 to 6.0 parts by weight based on 100 parts by weight of the polyether polyol.
- Such a flexible polyurethane foam of the present invention is particularly effective as a speaker edge material.
- the flexible polyurethane foam of the present invention has a urethane bond Z ⁇ rare bond (molar ratio) of 1 (7 or less), preferably 1 / (4 or less). If the number of rare bonds exceeds this range, sufficient resistance to moist heat deterioration cannot be obtained. However, it is preferable that the urethane-bonded urea bond (molar ratio) is in the range of 1 / 0.2 to 1 / 4.0 because the density of the urea bond is excessively reduced if the bond is excessively small. ,.
- the flexible polyurethane foam of the present invention preferably contains 0.5 to 20 parts by weight, more preferably 3.0 to 8.0 parts by weight of a low molecular weight polyol, based on 100 parts by weight of the polyether polyol as the hydroxyl compound. , But is not limited to this formulation.
- polyether polyol examples include a compound obtained by subjecting a polyhydroxyl compound such as glycerin, trimethinolpropane, or pentaerythritol to a ring-opening addition bond with propylene oxide, ethylene oxide, or the like using an alkaline catalyst. 50 weight of secondary hydroxyl group. /. Polyols having a molecular weight of 3,000 to 6,000 are preferred. These polyols are used in the production of general flexible polyurethane foams and are obtained by reacting glycerin with propylene oxide. Poly (oxypropylene) triol is commonly used.
- low molecular weight polyols examples include ethylene glycol, propylene glycol, diethylene glycol, butanediol, glycerin, trimethylonolepronone, and triethylone repronone.
- aliphatic alcohols such as trimethylol-l-ethane, triethylonoleethane, pentaerythritol and 1,2,6-hexanetriol.
- the polyisocyanate used in the present invention is preferably tolylene diisocyanate.
- diphenyl methane diisocyanate, diphenyl diisocyanate, triphenyl diisocyanate, and Phenyl 1,2,4-diisocyanate, p-phenylenediocyanate, xylene diisocyanate, polyanilinepolyisocyanate and the like can also be used.
- the polyisocyanate is preferably blended so as to have an isocyanate index of 85 to 120.
- Volatile liquids having a low boiling point include, for example, These blowing agents can be used alone or in combination.
- the amount of water is preferably 1.0 to 6.0 parts by weight based on 100 parts by weight of the polyether polyol.
- a silicone-based foam stabilizer generally used for a flexible polyurethane foam can be used.
- a polyether-modified silicone-based foam stabilizer containing an active hydrogen-containing group such as a carboxyl group, a hydroxyl group, an amino group, or a methoxy group, and preferably a reactive group such as a hydroxyl group or a hydroxyl group.
- Such a silicone foam stabilizer is preferably blended in an amount of 0.5 to 20.0 parts by weight based on 100 parts by weight of the polyether polyol of the hydroxyl compound.
- the other foam raw materials are not particularly limited, and those used for ordinary flexible polyurethane foams can be blended.
- carbon black may be blended in an amount of 20.0 parts by weight or less based on 100 parts by weight of the polyether polyol.
- Other additives such as a pigment, a crosslinking agent, and a flame retardant may be blended.
- the flexible polyurethane foam of the present invention can be prepared by a so-called one-shot method in which a polyhydroxyl compound, water, a catalyst, and a foam stabilizer are mixed and reacted and foamed simultaneously with a polyisocyanate, or a part of the polyhydroxyl compound is formed by a polyhydroxy compound. It is possible to adopt a two-stage method in which the prepolymer is reacted with the entire amount of isocyanate in advance, and other components are mixed with the produced prepolymer and foamed. A predetermined amount of the catalyst may be mixed and stirred with the polyhydroxyl compound in advance and used as a uniform solution or a uniform dispersion.
- the density is preferably in the range of 20 to 40 kg Zm 3 .
- the main materials used as foam raw materials are as follows.
- Polyether polyol "GP300” manufactured by Sanyo Chemical Industries, Ltd.
- Silicone foam stabilizer Toray's Dow Corning Silicon “S R X—280 A
- Reactive silicone foam stabilizer Toray 'Dow Corning Silicone
- the foam raw materials having the composition shown in Table 1 are mixed and foamed to produce a flexible polyurethane foam having a urethane bond / a urea bond (molar ratio) shown in Table 1, and the obtained flexible polyurethane foam has a density, tensile strength,
- the wet heat resistance was measured, and the results are shown in Table 1.
- the tensile strength was measured by a tensile test according to JISK640, and the resistance to wet heat degradation was determined by placing a soft polyurethane foam in an autoclave at 115 ° C, and after 24 hours, the tensile strength was similarly measured. It was expressed by the retention of tensile strength when measured.
- the pressure inside the kakko is MPa. From Table 1, it can be seen that according to the present invention, a soft polyurethane foam having extremely good resistance to moist heat deterioration is provided. Industrial applicability
- a flexible polyurethane foam suitable for a speaker edge material and having remarkably good resistance to wet heat deterioration is provided.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001241059A AU2001241059A1 (en) | 2000-03-17 | 2001-03-08 | Flexible polyurethane foam |
US10/227,269 US20030013779A1 (en) | 2000-03-17 | 2002-08-26 | Flexible polyurethane foam |
US10/642,493 US20040068022A1 (en) | 2000-03-17 | 2003-08-18 | Flexible polyurethane foam |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000076626 | 2000-03-17 | ||
JP2000-76626 | 2000-03-17 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/227,269 Continuation US20030013779A1 (en) | 2000-03-17 | 2002-08-26 | Flexible polyurethane foam |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001070838A1 true WO2001070838A1 (fr) | 2001-09-27 |
Family
ID=18594341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/001800 WO2001070838A1 (fr) | 2000-03-17 | 2001-03-08 | Mousse souple de polyurethane |
Country Status (4)
Country | Link |
---|---|
US (1) | US20030013779A1 (ja) |
CN (1) | CN1193053C (ja) |
AU (1) | AU2001241059A1 (ja) |
WO (1) | WO2001070838A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006070220A (ja) * | 2004-09-06 | 2006-03-16 | Inoac Corp | 撥水性ポリウレタン樹脂発泡体 |
JP2012116900A (ja) * | 2010-11-29 | 2012-06-21 | Bridgestone Corp | スピーカーエッジ材 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4640669B2 (ja) * | 2004-06-11 | 2011-03-02 | 日本発條株式会社 | フレキソ印刷用クッション材 |
CN109810238A (zh) * | 2019-01-14 | 2019-05-28 | 重庆科莱高分子材料有限公司 | 用于扬声器上的聚氨酯高分子材料的配方 |
CN109851756A (zh) * | 2019-01-14 | 2019-06-07 | 重庆科莱高分子材料有限公司 | 用于扬声器上的聚氨酯高分子材料加工工艺 |
CN111040115B (zh) * | 2019-12-27 | 2022-01-28 | 陕西科技大学 | 一种复合型腐植酸海绵仿生土壤基质及其制备方法和应用 |
CN111040125B (zh) * | 2019-12-27 | 2022-01-28 | 陕西科技大学 | 一种复合型黄腐酸抗菌海绵基质及其制备方法和应用 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4997858A (en) * | 1988-06-28 | 1991-03-05 | Recticel | Method for preparing a flexible polyurethane foam |
JPH03128915A (ja) * | 1988-10-25 | 1991-05-31 | Asahi Glass Co Ltd | ポリウレタン弾性フォームの製造方法 |
JPH06212012A (ja) * | 1993-01-14 | 1994-08-02 | Asahi Glass Co Ltd | 合成樹脂発泡体の製造方法 |
JPH06212016A (ja) * | 1993-01-14 | 1994-08-02 | Asahi Glass Co Ltd | 発泡合成樹脂を製造する方法 |
JPH0833095A (ja) * | 1994-07-20 | 1996-02-02 | Bridgestone Corp | スピーカーエッジ素材 |
JPH09100336A (ja) * | 1995-08-03 | 1997-04-15 | Sanyo Chem Ind Ltd | ポリオール組成物及びポリウレタンフォームの製法 |
EP0806442A1 (en) * | 1996-05-09 | 1997-11-12 | Inoac Corporation | Flexible polyurethane foam |
JPH1160676A (ja) * | 1997-08-20 | 1999-03-02 | Takeda Chem Ind Ltd | 軟質ポリウレタンフォームの製造方法 |
-
2001
- 2001-03-08 CN CNB018067182A patent/CN1193053C/zh not_active Expired - Fee Related
- 2001-03-08 WO PCT/JP2001/001800 patent/WO2001070838A1/ja active Application Filing
- 2001-03-08 AU AU2001241059A patent/AU2001241059A1/en not_active Abandoned
-
2002
- 2002-08-26 US US10/227,269 patent/US20030013779A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4997858A (en) * | 1988-06-28 | 1991-03-05 | Recticel | Method for preparing a flexible polyurethane foam |
JPH03128915A (ja) * | 1988-10-25 | 1991-05-31 | Asahi Glass Co Ltd | ポリウレタン弾性フォームの製造方法 |
JPH06212012A (ja) * | 1993-01-14 | 1994-08-02 | Asahi Glass Co Ltd | 合成樹脂発泡体の製造方法 |
JPH06212016A (ja) * | 1993-01-14 | 1994-08-02 | Asahi Glass Co Ltd | 発泡合成樹脂を製造する方法 |
JPH0833095A (ja) * | 1994-07-20 | 1996-02-02 | Bridgestone Corp | スピーカーエッジ素材 |
JPH09100336A (ja) * | 1995-08-03 | 1997-04-15 | Sanyo Chem Ind Ltd | ポリオール組成物及びポリウレタンフォームの製法 |
EP0806442A1 (en) * | 1996-05-09 | 1997-11-12 | Inoac Corporation | Flexible polyurethane foam |
JPH1160676A (ja) * | 1997-08-20 | 1999-03-02 | Takeda Chem Ind Ltd | 軟質ポリウレタンフォームの製造方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006070220A (ja) * | 2004-09-06 | 2006-03-16 | Inoac Corp | 撥水性ポリウレタン樹脂発泡体 |
JP4647265B2 (ja) * | 2004-09-06 | 2011-03-09 | 株式会社イノアックコーポレーション | 撥水性ポリウレタン樹脂発泡体 |
JP2012116900A (ja) * | 2010-11-29 | 2012-06-21 | Bridgestone Corp | スピーカーエッジ材 |
Also Published As
Publication number | Publication date |
---|---|
CN1418231A (zh) | 2003-05-14 |
US20030013779A1 (en) | 2003-01-16 |
AU2001241059A1 (en) | 2001-10-03 |
CN1193053C (zh) | 2005-03-16 |
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