WO2008001686A1 - Mousse et tampon de polyuréthane mou jaunissant à peine - Google Patents

Mousse et tampon de polyuréthane mou jaunissant à peine Download PDF

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Publication number
WO2008001686A1
WO2008001686A1 PCT/JP2007/062586 JP2007062586W WO2008001686A1 WO 2008001686 A1 WO2008001686 A1 WO 2008001686A1 JP 2007062586 W JP2007062586 W JP 2007062586W WO 2008001686 A1 WO2008001686 A1 WO 2008001686A1
Authority
WO
WIPO (PCT)
Prior art keywords
polyurethane foam
polyol
flexible polyurethane
hardly
raw material
Prior art date
Application number
PCT/JP2007/062586
Other languages
English (en)
Japanese (ja)
Inventor
Yoriyuki Senba
Hideya Kinoshita
Original Assignee
Bridgestone Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Corporation filed Critical Bridgestone Corporation
Publication of WO2008001686A1 publication Critical patent/WO2008001686A1/fr

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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/487—Polyethers containing cyclic 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
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible

Definitions

  • the present invention relates to a hard yellowing flexible polyurethane foam, and in particular, a brassiere pad and a shoulder pad.
  • the present invention relates to a soft yellow polyurethane foam that is useful as a clothing pad such as a hanger pad, sanitary peripheral materials such as disposable diapers and napkins, medical supplies, and other miscellaneous goods.
  • the present invention also relates to a pad and a brassiere pad made of this hardly yellowed flexible polyurethane foam.
  • Flexible polyurethane foam has a good cushioning property, and has a soft and good feel that does not get loose during long-term or repeated use like cotton.
  • Flexible polyurethane foam is widely used as clothing pad materials such as brassiere pads, shoulder pad materials, hanger pad materials, sanitary peripheral materials such as paper diapers and napkins, medical-related products, and other miscellaneous materials. ing.
  • BHT dibutylcresol
  • NO nitrogen oxides
  • BHT has sublimation properties, it volatilizes and adheres to the nearby fabric, causing the fabric to change color as well.
  • the flexible polyurethane foam itself is yellowed by nitrogen oxide (NO), and further ultraviolet
  • a polyol component mainly composed of polypropylene glycol (PPG) is used as a polyurethane raw material, and an ultraviolet absorber and a NO-resistant agent ( By adding a chemical that suppresses the reaction with NO)
  • an aliphatic isocyanate effective for yellowing resistance may be used as an isocyanate component of the polyurethane raw material.
  • UV absorbers or NO-resistant agents are added to polyurethane raw materials, or BHT
  • UV absorbers and NO-resistant agents are very expensive, increasing the cost of the product.
  • Patent Document 1 WO2002Z053618
  • the present invention uses an ordinary aliphatic polyol component as the polyol component without using an expensive aliphatic isocyanate as the isocyanate, and hardly yellowed soft polyurethane in which yellowing and transfer discoloration of the foam are suppressed.
  • the primary purpose is to provide a form.
  • a second object of the present invention is to provide a pad made of this hardly yellowed flexible polyurethane foam.
  • the hardly yellowing flexible polyurethane foam according to the first aspect of the present invention is a polyurethane foam obtained by foaming a polyurethane raw material containing a polyol component and an isocyanate, wherein the polyurethane raw material contains urea. .
  • the hardly yellowed flexible polyurethane foam of the second aspect is that in the first aspect, the content of urea in the polyurethane raw material is 0.1 to 10 parts by weight with respect to 100 parts by weight of the polyol component.
  • the hardly yellowing flexible polyurethane foam of the third aspect is characterized in that, in the first or second aspect, the polyol component strength includes a polyether polyol having an ester bond in the polyol skeleton.
  • a polyol component power includes a polyether polyol having a plurality of benzene rings in a polyol structure.
  • the hardly yellowing flexible polyurethane foam of the fifth aspect is the first or second aspect, wherein the polyol component has an ester bond in the polyol skeleton and a plurality of benzene rings in the polyol structure. It contains the polyether polyol which has.
  • the hardly yellowed flexible polyurethane foam of the sixth aspect is characterized in that, in the fifth aspect, the polyether polyol is a phthalic polyether polyol.
  • the hardly yellowed flexible polyurethane foam of the seventh aspect is characterized in that, in the first to sixth aspects, the polyol component contains a non-volatile antioxidant having a molecular weight of 300 or more.
  • the hardly yellowed flexible polyurethane foam of the eighth aspect is characterized in that, in the first to seventh aspects, the polyurethane raw material contains an ultraviolet absorber and Z or NO-resistant agent.
  • the hardly yellowed flexible polyurethane foam of the ninth aspect is characterized in that, in the first to eighth aspects, the ⁇ value after a NO weak test according to JIS LO 855 is 10 or less.
  • the YI value is measured by the method described in the Examples section below.
  • the pad of the tenth aspect is composed of the hardly yellowed flexible polyurethane foam of each of the above aspects.
  • the brassiere pad according to the eleventh aspect is composed of the hardly yellowed flexible polyurethane foam according to each aspect described above.
  • the blending amount of urea is preferably 0.1 to: LO parts by weight, particularly 0.3 to 3 parts by weight with respect to 100 parts by weight of the polyol component in the polyurethane raw material.
  • polyether polyol having an ester bond in the polyol skeleton polyether polyol having a plurality of benzene rings in the polyol structure, or having an ester bond in the polyol skeleton and in the polyol structure
  • polyether polyol is preferably a phthalic polyether polyol.
  • the polyether polyol used in the present invention may contain a hardly volatile anti-oxidation agent having a molecular weight of 300 or more in the polyol component.
  • the polyurethane raw material may contain an ultraviolet absorber and Z or NO anti-foaming agent.
  • the hardly yellowed flexible polyurethane foam of the present invention is preferably NO in accordance with JIS L0855.
  • ⁇ value after weak test is 10 or less.
  • the hardly yellowing flexible polyurethane foam of the present invention is useful as various clothing-related pads such as brassiere pads, sanitary peripheral materials such as paper diapers and napkins, medical-related products, and other miscellaneous goods materials.
  • various clothing-related pads such as brassiere pads, sanitary peripheral materials such as paper diapers and napkins, medical-related products, and other miscellaneous goods materials.
  • the hardly yellowed flexible polyurethane foam of the present invention is obtained by foaming a polyurethane raw material containing urea. If the content of urea in the polyurethane raw material is too small, the effects of the present invention due to the urea combination cannot be obtained sufficiently, and if it is too large, the reaction control becomes difficult.
  • the proportion of urea in the polyurethane raw material is preferably 0.1 to 10 parts by weight, particularly 0.5 to 3 parts by weight, based on 100 parts by weight of the polyol component.
  • the polyol component of the polyurethane raw material of the present invention a general-purpose polyol component can be used.
  • the polyol component is a number average molecule that is not particularly limited.
  • Ability to use a wide range of amounts of about 500 to 8000 For example, polyether polyols having a molecular weight of 2500 to 5000 and an OH number of about 40 to 60, such as glycerin, polymethylolpropane or diethylene glycol, propylene oxide, ethylene oxide
  • polyether polyol examples include phthalic acid polyether polyol and maleic acid polyether polyol.
  • phthalic acid-based polyether polyol examples include polyether polyols in which propylene oxide and phthalic anhydride are alternately added to glycerin and the terminal is propylene oxide.
  • the polyol component includes the above-mentioned general-purpose polyol component and the above (0, G)
  • the polyol component may be added with a non-volatile high molecular weight acidification inhibitor.
  • a non-volatile high molecular weight acidification inhibitor e.g., a polymer phenolic acid antioxidant having a molecular weight of 300 or more is suitable.
  • the molecular weight of the phenolic acid proofing agent is less than 300, the phenolic acid oxidization inhibitor is volatilized and transfer discoloration occurs.
  • the molecular weight of phenolic acid rust inhibitor is
  • a power of 400 or more, especially 600 or more is preferable.
  • phenolic antioxidants include “Nauguard 445” manufactured by Euroyal and “AO80” manufactured by Asahi Denka Kogyo Co., Ltd.
  • a phenolic acid / antioxidant can be used.
  • the blending amount of the phenol-based anti-oxidation agent is preferably about 0.05 to 2.0 parts by weight with respect to 100 parts by weight of the polyol component.
  • the polyol component does not substantially contain BHT.
  • the hardly yellowed flexible polyurethane foam of the present invention is prepared by mixing urea with a polyurethane raw material, and preferably using the above-described (0, GO, (m) polyether polyol as a polyol component.
  • the usual polyurethane raw material composition can be used, and foaming can be performed according to a conventional method using such a raw material, and the NCO index of the polyurethane raw material is preferably 90 to 120.
  • Polyol component 100
  • Isocyanate component 90-120 (NCO index)
  • Foaming agent 1.0 to 25.0
  • Foam stabilizer 0.1 to 3.0
  • the isocyanate component an organic polyisocyanate having two or more isocyanate groups in one molecule, aliphatic and aromatic polyisocyanate compounds, and modified products thereof are used.
  • the present invention is not limited to this.
  • the aliphatic polyisocyanate include hexamethylene diisocyanate, isophorone diisocyanate, dicyclohexylmethane diisocyanate, methylcyclohexane diisocyanate, and the like.
  • the aromatic polyisocyanate include toluene diisocyanate, diphenylmethane diisocyanate, and polymeric diphenylmethane diisocyanate.
  • the polyisocyanate is preferably an aromatic polyisocyanate or a modified product of an aromatic polyisocyanate, particularly preferably toluene diisocyanate or diphenol. Nilmethane diisocyanate.
  • any foaming agent used in the production of polyurethane foam can be used.
  • chlorofluorocarbon, chlorodifluoromethane and other chlorofluorocarbon compounds as low-boiling inert solvents methylene chloride, liquids that generate gas by liquid carbon dioxide reaction, water, acid amide, nitroalkane, etc.
  • Sodium bicarbonate, ammonium carbonate, etc. generate gas by pyrolysis.
  • preferred blowing agents include methylene chloride, water and the like.
  • catalysts used for the production of ordinary urethane foam can be used.
  • examples thereof include tin-based catalysts such as dibutyltin dilaurate and stannous octoate, and tertiary amines such as triethylamine and tetramethylhexanemethylenediamine.
  • a surfactant may be further blended in the polyurethane raw material as necessary.
  • the surfactant include silicone surfactants.
  • the flame retardant include conventionally known flame retardants such as tris (2 chloroethyl) phosphate, tris (2,3 dibromopropyl) phosphate, and organic powders such as urea and thiourea or metal hydroxides. Inorganic powder such as antimony trioxide and antimony can be used!
  • auxiliary agents include colored powders such as pigments and dyes, powders such as talc and graphite, short glass fibers, other inorganic extenders and organic solvents.
  • At least polyurethane raw material power ultraviolet absorber and NO-resistant agent are required.
  • a benzotriazole-based ultraviolet absorber is suitable, and this prevents yellowing of the polyurethane foam due to ultraviolet rays.
  • this benzotriazole type ultraviolet absorber “T-213” manufactured by Ciba Specialty Chemicals, “LA-31” manufactured by Asahi Denki Kogyo Co., Ltd. and the like can be used. If too much benzotriazole UV absorber is added, the resulting foam may be disturbed in appearance, so the amount of benzotriazole UV absorber is 0 for 100 parts by weight of the polyol component in the polyurethane raw material. 1 to 3.0 parts by weight are preferred.
  • a phosphorus-based anti-oxidation agent is suitable.
  • the amount of the phosphorus antioxidant is based on 100 parts by weight of the polyol component in the polyurethane raw material. The amount is preferably 0.5 to 6.0 parts by weight.
  • Flame yellowing flexible polyurethane foam of the present invention preferred to be foam molded to a density 150KgZm 3 below especially 12-8 OkgZm about 3,.
  • the urethane reaction will be very slow and it will be difficult to solidify. For this reason, productivity becomes extremely low in a normal free foaming state. This tendency becomes more pronounced as more urea is added. If the density exceeds 150 kgZm 3 , adding 3 parts by weight of urea to 100 parts by weight of polyol will not harden even after 1 day. If the amount of catalyst is increased significantly, it may be hardened, but it is not feasible in terms of environment, safety and cost.
  • the density is 150 kgZm 3 or less, it will harden even if 3 parts by weight of urea is added to 100 parts by weight of polyol.
  • the hardly yellowed flexible polyurethane foam of the present invention can be molded into a desired shape even by hot pressing at a relatively low temperature and in a relatively short time.
  • the molded body include clothing-related pads such as brassiere pads, shoulder pads, and hanger pads. Among them, this hardly yellowed flexible polyurethane foam is suitable for application to a brassiere pad.
  • a hot-pressed mold of a predetermined size is sandwiched between an upper mold and a lower mold of a hot press mold and hot pressed. Good.
  • This pad may be used as it is as a bra pad, a shoulder pad, a hanger pad or the like, or may be used by being encapsulated with a cloth.
  • the fabric can be either woven or non-woven A woven fabric is preferred.
  • the material of the fabric may be a natural fiber such as cotton, or a chemical fiber such as nylon or polyester.
  • the thickness of the cloth is thin.
  • a polyurethane raw material having the composition shown in Table 1 was foamed at 25 ° C according to a conventional method to produce a flexible polyurethane foam.
  • the YI value was measured with a colorimetric color difference meter “ZE2000” manufactured by Nippon Denshoku Industries Co., Ltd. NO
  • the difference ( ⁇ ) between the YI value before the test and the YI value after the test is 50 or less, In particular, it is desired to be 30 or less, especially 20 or less, further 10 or less, most preferably 5 or less.
  • Amine catalyst ( ⁇ 5) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 port
  • ⁇ 1 to 7 in Table 1 are as follows.
  • ⁇ 1 Sanix “GS3000V” manufactured by Sanyo Chemical Industries
  • ⁇ 3 “Cosmonate T-80” manufactured by Mitsui Chemicals Polyurethanes Co., Ltd.

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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)
  • Polyurethanes Or Polyureas (AREA)
  • Details Of Garments (AREA)
  • Corsets Or Brassieres (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une mousse de polyuréthane mou jaunissant à peine qui est obtenue sans utiliser un isocyanate aliphatique onéreux en tant qu'isocyanate, tout en utilisant un polyol généraliste classique en tant que composant polyol. Le jaunissement et la migration des couleurs de cette mousse de polyuréthane mou jaunissant à peine sont supprimés. L'invention concerne spécifiquement une mousse de polyuréthane mou jaunissant à peine obtenue par le moussage d'une matière première polyuréthane contenant un composant polyol et un isocyanate. Cette mousse de polyuréthane est caractérisée en ce que la matière première polyuréthane contient de l'urée. En utilisant en tant que composant polyol un polyol de polyéther doté d'une liaison ester dans le squelette polyol tout en ayant une pluralité de cycles benzéniques dans la structure polyol, il est possible d'améliorer les effets de prévention de la décoloration.
PCT/JP2007/062586 2006-06-27 2007-06-22 Mousse et tampon de polyuréthane mou jaunissant à peine WO2008001686A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006176773A JP5186735B2 (ja) 2006-06-27 2006-06-27 難黄変軟質ポリウレタンフォーム及びパット
JP2006-176773 2006-06-27

Publications (1)

Publication Number Publication Date
WO2008001686A1 true WO2008001686A1 (fr) 2008-01-03

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JP (1) JP5186735B2 (fr)
WO (1) WO2008001686A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009249427A (ja) * 2008-04-02 2009-10-29 Bridgestone Corp 難黄変軟質ポリウレタンフォーム
CN110016118A (zh) * 2019-04-19 2019-07-16 蔡卫华 一种健康环保舒适的内衣罩杯材料

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5479077B2 (ja) * 2009-12-21 2014-04-23 株式会社イノアックコーポレーション 軟質ポリウレタンフォーム
JP2012213711A (ja) * 2011-03-31 2012-11-08 Mitsubishi Chemicals Corp 乳化剤
JP5830779B2 (ja) * 2011-09-08 2015-12-09 ライオン株式会社 衣料用液体洗剤組成物

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230898A (en) * 1976-01-26 1977-03-08 Goldschmidt Ag Th Preparation of foam containing urethane group
JPS55112228A (en) * 1979-02-22 1980-08-29 Bayer Ag Manufacture of high resilience foam containing urethane group
JPS55147517A (en) * 1979-05-04 1980-11-17 Bridgestone Corp Preparation of soft polyether-polyurethane foam substantially free from cell menbrane
JPS6254719A (ja) * 1985-09-04 1987-03-10 Toyo Tire & Rubber Co Ltd 軟質ポリエ−テルポリウレタンフオ−ムの製造方法
JPH02261818A (ja) * 1989-02-02 1990-10-24 Bayer Ag 弾性の連続気泡軟質成形ポリウレタンフオームの製造方法
JPH03106922A (ja) * 1989-08-25 1991-05-07 Dow Chem Co:The 相溶化活性水素化合物―アルキレングリコール組成物
WO2002053618A1 (fr) * 2000-12-27 2002-07-11 Bridgestone Corporation Mousses de polyurethannes souples a jaunissement inhibe et coussin

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230898A (en) * 1976-01-26 1977-03-08 Goldschmidt Ag Th Preparation of foam containing urethane group
JPS55112228A (en) * 1979-02-22 1980-08-29 Bayer Ag Manufacture of high resilience foam containing urethane group
JPS55147517A (en) * 1979-05-04 1980-11-17 Bridgestone Corp Preparation of soft polyether-polyurethane foam substantially free from cell menbrane
JPS6254719A (ja) * 1985-09-04 1987-03-10 Toyo Tire & Rubber Co Ltd 軟質ポリエ−テルポリウレタンフオ−ムの製造方法
JPH02261818A (ja) * 1989-02-02 1990-10-24 Bayer Ag 弾性の連続気泡軟質成形ポリウレタンフオームの製造方法
JPH03106922A (ja) * 1989-08-25 1991-05-07 Dow Chem Co:The 相溶化活性水素化合物―アルキレングリコール組成物
WO2002053618A1 (fr) * 2000-12-27 2002-07-11 Bridgestone Corporation Mousses de polyurethannes souples a jaunissement inhibe et coussin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009249427A (ja) * 2008-04-02 2009-10-29 Bridgestone Corp 難黄変軟質ポリウレタンフォーム
CN110016118A (zh) * 2019-04-19 2019-07-16 蔡卫华 一种健康环保舒适的内衣罩杯材料

Also Published As

Publication number Publication date
JP2008007553A (ja) 2008-01-17
JP5186735B2 (ja) 2013-04-24

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