JPH05329852A - Manufacture of foamed polyurethane molded matter - Google Patents
Manufacture of foamed polyurethane molded matterInfo
- Publication number
- JPH05329852A JPH05329852A JP4181462A JP18146292A JPH05329852A JP H05329852 A JPH05329852 A JP H05329852A JP 4181462 A JP4181462 A JP 4181462A JP 18146292 A JP18146292 A JP 18146292A JP H05329852 A JPH05329852 A JP H05329852A
- Authority
- JP
- Japan
- Prior art keywords
- foamed polyurethane
- foamed
- foaming
- polyurethane molded
- mold
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用成型天井材、
バッグ類、椅子などに使用される発泡ポリウレタン成型
物の製造方法に関する。FIELD OF THE INVENTION The present invention relates to a molded ceiling material for automobiles,
The present invention relates to a method for producing a foamed polyurethane molded product used for bags, chairs and the like.
【０００２】[0002]
【従来の技術】発泡ポリウレタンシートは広く利用され
ているが、絞り加工で型付けすることが困難であった。
これを改良するために、発泡ポリウレタンシートに水溶
性メラミン樹脂やジイソシアネート化合物を含浸させる
方法、あるいは発泡ポリウレタンシートに未硬化の熱硬
化性樹脂粉末を含有させる方法（特願平３−３６１１０
９号）などが知られている。しかし、これらの方法では
型付け性は得られるが、発泡ポリウレタンシート本来の
風合いが著しく阻害される。2. Description of the Related Art Foamed polyurethane sheets are widely used, but it is difficult to form them by drawing.
In order to improve this, a method of impregnating a foamed polyurethane sheet with a water-soluble melamine resin or a diisocyanate compound, or a method of containing an uncured thermosetting resin powder in the foamed polyurethane sheet (Japanese Patent Application No. 3-36110).
No. 9) is known. However, although the moldability can be obtained by these methods, the original texture of the foamed polyurethane sheet is significantly impaired.
【０００３】発泡ポリウレタンシート本来の風合を阻害
しない方法として、金型内で発泡させる方法が知られて
いるが、この方法では厚さが薄く面積の大きな発泡ポリ
ウレタン成型物を得ることは困難である。As a method of preventing the original feeling of the foamed polyurethane sheet, a method of foaming in a mold is known, but it is difficult to obtain a foamed polyurethane molded product having a small thickness and a large area by this method. is there.
【０００４】また発泡性ポリウレタン組成物を常温で発
泡させて得られる発泡ポリウレタンシートは、発泡直後
においては寸法安定性が悪いため、変形を与えた状態で
一定時間放置すると変形されたままの状態を維持する
が、発泡後一定時間経過したものは変形されないことは
すでに知られている。この理由として、発泡直後におい
ては未反応のイソシアネート基が存在しているものと考
えられるが、従来はこの現象を積極的に利用する方法は
知られていない。A foamed polyurethane sheet obtained by foaming a foamable polyurethane composition at room temperature has poor dimensional stability immediately after foaming. Therefore, if it is left in a deformed state for a certain period of time, it will remain deformed. It is already known that the material which is maintained but is not deformed after a certain time has passed after foaming. For this reason, it is considered that unreacted isocyanate groups are present immediately after the foaming, but heretofore no method has been known to positively utilize this phenomenon.
【０００５】[0005]
【発明が解決しようとする課題】本発明者らは、従来の
方法を改良すべく鋭意研究した結果、未反応のイソシア
ネート基が存在する発泡ポリウレタンシートを金型内で
熱処理することにより、風合いにすぐれ、良好に型付け
された厚さに比して面積の大きな発泡ポリウレタン成型
物が容易に得られることを見出して、本発明に至ったも
のである。DISCLOSURE OF THE INVENTION As a result of intensive studies to improve the conventional method, the present inventors have found that a foamed polyurethane sheet having unreacted isocyanate groups is heat treated in a mold to give a good texture. The present invention is based on the finding that a foamed polyurethane molded product having a large area as compared with a well-shaped thickness can be easily obtained.
【０００６】[0006]
【課題を解決するための手段】本発明は、発泡ポリウレ
タン成型物の製造において、発泡性ポリウレタン組成物
を発泡させてシート状物を得た後、未反応のイソシアネ
ート基が存在する状態において金型内で熱処理すること
を特徴とする。Means for Solving the Problems In the production of a foamed polyurethane molded article, the present invention provides a mold in which unreacted isocyanate groups are present after a foamable polyurethane composition is foamed to obtain a sheet-like article. It is characterized in that it is heat-treated inside.
【０００７】本発明における発泡性ポリウレタン組成物
としては、特に限定されず、従来公知の中から適宜選択
される。なお発泡を阻害しない範囲内において、ポリイ
ソシアネートをポリオールに対して過剰に使用してもよ
い。また必要に応じて、ブロックイソシアネート化合
物、ビニル単量体、熱硬化性樹脂粉末、繊維状強化材な
どを添加してもよい。The expandable polyurethane composition in the present invention is not particularly limited and is appropriately selected from conventionally known ones. The polyisocyanate may be used in excess with respect to the polyol as long as it does not hinder foaming. Moreover, you may add a block isocyanate compound, a vinyl monomer, a thermosetting resin powder, a fibrous reinforcement material etc. as needed.
【０００８】発泡条件としては、発泡後、未反応のイソ
シアネート基を残存させるためには、加熱発泡よりも常
温発泡が望ましい。発泡してから金型内で熱処理するま
での時間は、良好に型付けされた発泡成型物が得られれ
ば特に限定されないが、通常は発泡が安定し、表面のタ
ック性が実用上支障をきたさなくなった後、できるだけ
速やかに成型することが望ましい。As foaming conditions, room temperature foaming is preferable to heat foaming in order to leave unreacted isocyanate groups after foaming. The time from foaming to heat treatment in the mold is not particularly limited as long as a well-molded foam molding can be obtained, but normally foaming is stable and surface tackiness does not hinder practical use. After molding, it is desirable to mold as soon as possible.
【０００９】金型内での熱処理条件としては、温度およ
び時間は良好に型付けされた発泡成型物が、得られる範
囲内で適宜選択される。なお金型内の成型において、片
面または両面に含浸あるいは未含浸シートを挿入するこ
とにより発泡積層成型物を得ることができる。As the heat treatment conditions in the mold, the temperature and the time are appropriately selected within the range where a foamed molded product that is well molded can be obtained. In the molding in the mold, a foamed laminated molding can be obtained by inserting an impregnated or unimpregnated sheet on one side or both sides.
【００１０】[0010]
【実施例】下記組成のポリオール組成物にジイソシアネ
ート（Ｃｒ−ＭＤＩ、三洋化成工業社製）６２．５重量
部を速やかに混合した後、シリコーン離型処理されたポ
リエチレンテレフタレートフィルムに挟んで５ｍｍ厚の
発泡シートを得た。 ポリオール組成物 ポリオール（ＦＡ−７０３、三洋化成工業社製） ９５ 重量部 トリエタノールアミン ５ 重量部 水 ２．５重量部 発泡触媒（Ｕｃａｔ１０００、サンアプロ社製） １ 重量部EXAMPLE 62.5 parts by weight of diisocyanate (Cr-MDI, manufactured by Sanyo Kasei Co., Ltd.) was rapidly mixed with a polyol composition having the following composition, and then sandwiched between polyethylene release-treated polyethylene terephthalate films having a thickness of 5 mm. A foamed sheet was obtained. Polyol composition Polyol (FA-703, manufactured by Sanyo Kasei Co., Ltd.) 95 parts by weight Triethanolamine 5 parts by weight Water 2.5 parts by weight Foaming catalyst (Ucat1000, manufactured by San-Apro) 1 part by weight
【００１１】発泡開始から５分後、ポリエチレンテレフ
タレートフィルムを剥離し、直ちに２ｍｍ厚のクリアラ
ンスを有する離型処理された金型内で、上記発泡シート
を、１５０℃、２分間熱処理したところ、風合にすぐ
れ、良好に型付けされヒートセットされた発泡ポリウレ
タン成型物が得られた。Five minutes after the start of foaming, the polyethylene terephthalate film was peeled off, and immediately after the foamed sheet was heat-treated at 150 ° C. for 2 minutes in a mold having a clearance of 2 mm, a texture was obtained. A foamed polyurethane molded article that was excellent in shape and heat set was obtained.
【００１２】[0012]
【比較例】実施例において、ポリエチレンテレフタレー
トフィルムを剥離した後、２４時間経過してから、以下
実施例１と同様に金型内で熱処理したところ、得られた
発泡ポリウレタン成型物は元の状態に復元して型付けさ
れず、ヒートセットされなかった。[Comparative Example] In the example, after the polyethylene terephthalate film was peeled off, after 24 hours, heat treatment was carried out in a mold in the same manner as in Example 1, and the obtained foamed polyurethane molded product was in the original state. It was restored, untyped, and not heat set.
【００１３】[0013]
【発明の効果】発泡性ポリウレタン組成物を発泡させて
シート状物を得た後、未反応のイソシアネート基が存在
する状態において金型内で熱処理することにより、風合
いにすぐれ、良好に型付けされ、ヒートセットされた発
泡ポリウレタン成型物を容易に製造することができる。
また本発明方法により、厚さが薄く面積の大きな発泡ポ
リウレタン成型物が容易に得られる。The foamable polyurethane composition is foamed to obtain a sheet, which is then heat-treated in a mold in the presence of unreacted isocyanate groups to provide excellent texture and good moldability. A heat-set foamed polyurethane molding can be easily manufactured.
Further, according to the method of the present invention, a foamed polyurethane molded product having a small thickness and a large area can be easily obtained.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０８Ｇ 18/08 ＮＧＵ 8620−4Ｊ Ｂ２９Ｋ 75:00 105:04 Ｂ２９Ｌ 7:00 4Ｆ 31:58 4Ｆ Ｃ０８Ｌ 75:04 (72)発明者 内藤 克彦 京都府城陽市寺田大谷135番地の１ 富士 高分子株式会社内 (72)発明者 二宮 山人 京都府城陽市寺田大谷135番地の１ 富士 高分子株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Internal reference number FI Technical display location C08G 18/08 NGU 8620-4J B29K 75:00 105: 04 B29L 7:00 4F 31:58 4F C08L 75:04 (72) Inventor Katsuhiko Naito, 135, Terada Otani, Joyo City, Kyoto Prefecture, Fuji Polymer Co., Ltd. (72) Inventor, Yamato Ninomiya, 135, Terada Oya, Joyo City, Kyoto Prefecture, Fuji Polymer Co., Ltd.
Claims (1)
ート状物を得た後、未反応のイソシアネート基が、存在
する状態において金型内で熱処理することを特徴とする
発泡ポリウレタン成型物の製造方法。1. A method for producing a foamed polyurethane molded article, which comprises subjecting a foamable polyurethane composition to foaming to obtain a sheet, and then heat-treating it in a mold in a state where unreacted isocyanate groups are present. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4181462A JPH05329852A (en) | 1992-05-29 | 1992-05-29 | Manufacture of foamed polyurethane molded matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4181462A JPH05329852A (en) | 1992-05-29 | 1992-05-29 | Manufacture of foamed polyurethane molded matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05329852A true JPH05329852A (en) | 1993-12-14 |
Family
ID=16101184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4181462A Pending JPH05329852A (en) | 1992-05-29 | 1992-05-29 | Manufacture of foamed polyurethane molded matter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05329852A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007010766A1 (en) * | 2005-07-15 | 2007-01-25 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| JP2007045143A (en) * | 2005-07-15 | 2007-02-22 | Toyo Tire & Rubber Co Ltd | Manufacturing method of laminated sheet and laminated sheet |
| JP2007245575A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminate sheet |
| JP2007245571A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminated sheet and its manufacturing method |
| US8167690B2 (en) | 2006-09-08 | 2012-05-01 | Toyo Tire & Rubber Co., Ltd. | Polishing pad |
| US8257153B2 (en) | 2007-01-15 | 2012-09-04 | Toyo Tire & Rubber Co., Ltd. | Polishing pad and a method for manufacturing the same |
| US8476328B2 (en) | 2008-03-12 | 2013-07-02 | Toyo Tire & Rubber Co., Ltd | Polishing pad |
| US9126303B2 (en) | 2005-08-30 | 2015-09-08 | Toyo Tire & Rubber Co., Ltd. | Method for production of a laminate polishing pad |
-
1992
- 1992-05-29 JP JP4181462A patent/JPH05329852A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007010766A1 (en) * | 2005-07-15 | 2007-01-25 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| JP2007045143A (en) * | 2005-07-15 | 2007-02-22 | Toyo Tire & Rubber Co Ltd | Manufacturing method of laminated sheet and laminated sheet |
| US7927452B2 (en) | 2005-07-15 | 2011-04-19 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| US8318298B2 (en) | 2005-07-15 | 2012-11-27 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| US9126303B2 (en) | 2005-08-30 | 2015-09-08 | Toyo Tire & Rubber Co., Ltd. | Method for production of a laminate polishing pad |
| JP2007245575A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminate sheet |
| JP2007245571A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminated sheet and its manufacturing method |
| US8167690B2 (en) | 2006-09-08 | 2012-05-01 | Toyo Tire & Rubber Co., Ltd. | Polishing pad |
| US8257153B2 (en) | 2007-01-15 | 2012-09-04 | Toyo Tire & Rubber Co., Ltd. | Polishing pad and a method for manufacturing the same |
| US8602846B2 (en) | 2007-01-15 | 2013-12-10 | Toyo Tire & Rubber Co., Ltd. | Polishing pad and a method for manufacturing the same |
| US8476328B2 (en) | 2008-03-12 | 2013-07-02 | Toyo Tire & Rubber Co., Ltd | Polishing pad |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3243485A (en) | Fabrication of foamed plastic articles | |
| US5283003A (en) | Blowing agents for foaming polyurethane having no ozone depletion potential and uses and preparations thereof | |
| US2785739A (en) | Polyurethane cushions | |
| US3012283A (en) | Shaping polyurethane plastics | |
| DE1141075B (en) | Process for the production of a foam structure | |
| JPH05329852A (en) | Manufacture of foamed polyurethane molded matter | |
| GB2204235A (en) | Vandal resistant seat | |
| CA2027002A1 (en) | Method for enhancing thermal expandability of direct-injection foams | |
| JPH02263839A (en) | Manufacture of polyurethane-base elastomeric foam by microwave foaming | |
| CA1141100A (en) | Low density synthetic resin foamed body and manufacturing method therefor | |
| US5631304A (en) | Method of manufacturing rigid foamed product | |
| ATE138849T1 (en) | METHOD FOR PRODUCING A FOAM PLASTIC | |
| CA1214600A (en) | Expandable thermoplastic resin particles and process for preparing the same | |
| EP0293060A3 (en) | Rigid polyurethane foam and process for producing the same | |
| JP2905037B2 (en) | Laminated sheet for automotive interior materials suitable for thermoforming | |
| JPH0551882A (en) | Forming sheet material | |
| JPH05329950A (en) | Manufacture of foaming polyurethane molded product | |
| JPH05329979A (en) | Production of heat-setting foamed polyurethane laminated sheet | |
| JP2003025362A (en) | Foamed plastic having air permeability and method for manufacturing the same | |
| FR2396035A1 (en) | Polyurethane foam prepd. from poly:hydroxylated polyether - and small amt. of mono:hydroxy deriv. to improve mould release property of prod. | |
| JPH0641338A (en) | Production of heat-settable ecpanded polyurethane sheet | |
| JPH05318611A (en) | Production of foamed polyurethane molded object | |
| JPS6253819A (en) | Manufacture of electrically conductive olefin series resin foamed material | |
| EP0285135A3 (en) | Polyurethane foam with low vinyl-staining tendencies | |
| JPH05338050A (en) | Manufacture of polyurethane foam molding by electromagnetic induction heating |