JPH05329950A - Manufacture of foaming polyurethane molded product - Google Patents

Manufacture of foaming polyurethane molded product

Info

Publication number
JPH05329950A
JPH05329950A JP18146192A JP18146192A JPH05329950A JP H05329950 A JPH05329950 A JP H05329950A JP 18146192 A JP18146192 A JP 18146192A JP 18146192 A JP18146192 A JP 18146192A JP H05329950 A JPH05329950 A JP H05329950A
Authority
JP
Japan
Prior art keywords
molded product
foaming polyurethane
foamed
blocked isocyanate
polyurethane molded
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
Application number
JP18146192A
Other languages
Japanese (ja)
Inventor
Nobuyuki Kitayama
信幸 北山
Katsuhiko Naito
克彦 内藤
Yamahito Ninomiya
山人 二宮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OOKOUCHI SHIGYO KK
Fuji Polymer Industries Co Ltd
Kyoritsu Chemical and Co Ltd
Original Assignee
OOKOUCHI SHIGYO KK
Fuji Polymer Industries Co Ltd
Kyoritsu Chemical and Co Ltd
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 OOKOUCHI SHIGYO KK, Fuji Polymer Industries Co Ltd, Kyoritsu Chemical and Co Ltd filed Critical OOKOUCHI SHIGYO KK
Priority to JP18146192A priority Critical patent/JPH05329950A/en
Publication of JPH05329950A publication Critical patent/JPH05329950A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain easily a foaming polyurethane molded product which is thin in thickness and large in area in a manufacturing method for a foaming polyurethane molded product which is excellent in hand and drape, excellently embossed, and heat set. CONSTITUTION:Foaming polyurethane composition containing blocked isocyanate is foamed, and a sheet like product containing non-dissociated blocked isocyanate is obtained. Thereafter, it is heattreated in a metallic die. The product is suitable for roof materials for automobile, bags, chairs, etc.

Description

【発明の詳細な説明】Detailed Description of the Invention

【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】[0004]

【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、未解離のブロック
イソシアネートを含有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 INVENTION Problems to be Solved by the Invention As a result of intensive studies to improve the conventional method, the present inventors have found that a foamed polyurethane sheet containing undissociated blocked isocyanate is heat-treated in a mold to give a good texture. The present invention has been completed by finding that a foamed polyurethane molded product having a large area as compared with a well-shaped thickness can be easily obtained.

【0005】[0005]

【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、ブロックイソシアネートを
含有する発泡性ポリウレタン組成物を発泡させて未解離
のブロックイソシアネートを含有するシート状物を得た
後、金型内で熱処理することを特徴とする。
According to the present invention, in the production of a foamed polyurethane molded product, a foamable polyurethane composition containing a blocked isocyanate is foamed to obtain a sheet-like product containing an undissociated blocked isocyanate. The heat treatment is performed in a mold.

【0006】本発明における発泡性ポリウレタン組成物
としては、特に限定されるものではなく、従来公知の組
成物の中から適宜選択される(ポリウレタンフォーム、
今井嘉夫著、高分子刊行会発行、ポリウレタン樹脂ハン
ドブック、岩田敬治、日刊工業新聞者発行参照)。
The expandable polyurethane composition in the present invention is not particularly limited and is appropriately selected from conventionally known compositions (polyurethane foam,
See Yoshio Imai, published by Polymer Publishing Association, Handbook of Polyurethane Resin, Keiji Iwata, published by Nikkan Kogyo Shimbun).

【0007】ブロックイソシアネートとしては、2官能
性以上のイソシアネート基を有する化合物を、ブロック
剤でマスクして安定化したものである。ブロック剤とし
ては、アルコール類、フェノール類、ε−カプロラクタ
ム、オキシム類、活性メチレン化合物などの中から、貯
蔵安定性、金型内での熱処理条件などに応じて適宜選択
される。発泡性ポリウレタン組成物に対する添加量は、
通常5〜30重量%、望ましくは10〜20重量%であ
る。添加量が5重量%未満では、ヒートセット性が劣
り、また30重量%を超えると、発泡を阻害したり発泡
成型物の柔軟性を低下させるため好ましくない。
As the blocked isocyanate, a compound having a bifunctional or higher functional isocyanate group is masked with a blocking agent and stabilized. The blocking agent is appropriately selected from alcohols, phenols, ε-caprolactam, oximes, active methylene compounds and the like according to storage stability, heat treatment conditions in a mold and the like. The amount added to the expandable polyurethane composition is
It is usually 5 to 30% by weight, preferably 10 to 20% by weight. If the addition amount is less than 5% by weight, the heat setting property is poor, and if it exceeds 30% by weight, foaming is hindered or flexibility of the foamed molded product is lowered, which is not preferable.

【0008】なお金型内での熱処理時における温度を下
げ時間を短縮するためには解離触媒を使用することが望
ましい。解離触媒としては、1.3−ジアセトキシテト
ラブチルスタノキサンやジブチル錫ジラウレートなどの
錫系化合物、およびN−メチルモルホリンなどの3級ア
ミンが、一般に用いられる(ポリウレタン樹脂ハンドブ
ック、第419〜421ページ、岩田啓治編、日刊工業
新聞社発行参照)。
It is desirable to use a dissociation catalyst in order to lower the temperature and the time during the heat treatment in a coin mold. As dissociation catalysts, tin compounds such as 1.3-diacetoxytetrabutylstannoxane and dibutyltin dilaurate, and tertiary amines such as N-methylmorpholine are generally used (Polyurethane Resin Handbook, Nos. 419-421). See page, edited by Keiji Iwata, published by Nikkan Kogyo Shimbun).

【0009】発泡性ポリウレタン組成物の発泡条件とし
ては、発泡後、ブロックイソシアネートを解離させない
ためには、常温発泡が望ましい。
As the foaming conditions for the foamable polyurethane composition, room temperature foaming is desirable in order not to dissociate the blocked isocyanate after foaming.

【0010】金型内での熱処理における温度および時間
は、ブロックイソシアネートが解離して架橋反応するこ
とにより、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。なお金型内での成型において、
片面または両面に含浸あるいは未含浸シートを挿入し
て、発泡積層成型物を得ることもできる。
The temperature and time for the heat treatment in the mold are appropriately selected within the range where a well-molded foamed molded product can be obtained by the dissociation of the blocked isocyanate and the crosslinking reaction. In molding in the mold,
An impregnated or non-impregnated sheet may be inserted on one side or both sides to obtain a foam laminated molding.

【0011】[0011]

【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(ミリオネートMR−200、日本ポリウレタン工
業社製)27.7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10mm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) 47.5重量部 ブロックイソシアネート (コロネート2513、日本ポリウレタン工業社製)10 重量部 トリエタノールアミン 2.5 重量部 水 1.25重量部 発泡触媒(Ucat1000、サンアプロ社製) 0.5 重量部
EXAMPLE 27.7 parts by weight of diisocyanate (Millionate MR-200, manufactured by Nippon Polyurethane Industry Co., Ltd.) was rapidly mixed with a polyol composition having the following composition, then sandwiched between polyethylene release-treated polyethylene terephthalate films to give a thickness of 10 mm. To obtain a foam sheet. Polyol composition Polyol (FA-703, manufactured by Sanyo Kasei Co., Ltd.) 47.5 parts by weight Blocked isocyanate (Coronate 2513, manufactured by Nippon Polyurethane Industry Co., Ltd.) 10 parts by weight Triethanolamine 2.5 parts by weight Water 1.25 parts by weight Foaming Catalyst (Ucat1000, manufactured by San-Apro) 0.5 part by weight

【0012】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て得た発泡シートを、40℃
で24時間アンニーリングした後、5mm厚のクリアラ
ンスを有する離型処理された金型内で、180℃、10
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 to obtain a foamed sheet at 40 ° C.
After annealing for 24 hours at 180 ° C. for 10 minutes in a mold having a clearance of 5 mm thickness.
When heat-treated for a minute, a foamed polyurethane molded article which was excellent in texture and well shaped and heat set was obtained.

【0013】[0013]

【比較例】実施例において、ブロックイソシアネートを
使用しない以外は実施例と同様に操作したところ、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 When the same operation as in Example was carried out except that the blocked isocyanate was not used, the foamed polyurethane molded product obtained was restored to its original state and was not molded and heat set.

【0014】[0014]

【発明の効果】未解離のブロックイソシアネートを含有
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。
EFFECTS OF THE INVENTION By heat-treating a foamed polyurethane sheet containing undissociated blocked isocyanate in a mold, it is possible to easily produce a well-molded and heat-set foamed polyurethane molded article having excellent texture. .. 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 B29L 31:58 4F (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 Reference number within the agency FI Technical display location B29L 31:58 4F (72) Inventor Katsuhiko Naito 1 135, Otani Terada, Joyo-shi, Kyoto Prefecture Fuji Polymer Co., Ltd. (72) Inventor Yamato Ninomiya 1 at 135 Otani Terada, Joyo City, Kyoto Prefecture Fuji Polymer Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】ブロックイソシアネートを含有する発泡性
ポリウレタン組成物を発泡させて、未解離のブッロクイ
ソシアネートを含有するシート状物を得た後、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 foamed polyurethane molding characterized in that a foamable polyurethane composition containing a blocked isocyanate is foamed to obtain a sheet-like material containing undissociated block isocyanate and then heat-treated in a mold. Manufacturing method
JP18146192A 1992-05-30 1992-05-30 Manufacture of foaming polyurethane molded product Pending JPH05329950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18146192A JPH05329950A (en) 1992-05-30 1992-05-30 Manufacture of foaming polyurethane molded product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18146192A JPH05329950A (en) 1992-05-30 1992-05-30 Manufacture of foaming polyurethane molded product

Publications (1)

Publication Number Publication Date
JPH05329950A true JPH05329950A (en) 1993-12-14

Family

ID=16101166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18146192A Pending JPH05329950A (en) 1992-05-30 1992-05-30 Manufacture of foaming polyurethane molded product

Country Status (1)

Country Link
JP (1) JPH05329950A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1586595A1 (en) * 2004-04-15 2005-10-19 L & L Products, Inc. Activatable material and method of forming and using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1586595A1 (en) * 2004-04-15 2005-10-19 L & L Products, Inc. Activatable material and method of forming and using same

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