JPH0371247B2 - - Google Patents
Info
- Publication number
- JPH0371247B2 JPH0371247B2 JP61285508A JP28550886A JPH0371247B2 JP H0371247 B2 JPH0371247 B2 JP H0371247B2 JP 61285508 A JP61285508 A JP 61285508A JP 28550886 A JP28550886 A JP 28550886A JP H0371247 B2 JPH0371247 B2 JP H0371247B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- urethane foam
- urethane
- coating film
- paint
- 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.)
- Expired - Lifetime
Links
- 238000000576 coating method Methods 0.000 claims description 26
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000011248 coating agent Substances 0.000 claims description 23
- 239000006260 foam Substances 0.000 claims description 23
- 239000003973 paint Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 229920005862 polyol Polymers 0.000 description 7
- 150000003077 polyols Chemical class 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000005056 polyisocyanate Substances 0.000 description 5
- 229920001228 polyisocyanate Polymers 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 210000003491 skin Anatomy 0.000 description 3
- 210000004243 sweat Anatomy 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010107 reaction injection moulding Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical compound NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Steering Controls (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明は、成形用金型の製品キヤビテイ面にウ
レタン樹脂塗料で塗膜を形成後、金型を閉じてウ
レタンフオーム配合液を製品キヤビテイに注入し
て成形する塗膜付きウレタンフオームの製造方法
に関し、特に、塗膜に吸湿性を要求されるステア
リングホイールなどの製造に好適な方法に関す
る。[Detailed Description of the Invention] <Industrial Application Field> The present invention involves forming a coating film with a urethane resin paint on the product cavity surface of a molding mold, then closing the mold and applying the urethane foam compound liquid to the product cavity. The present invention relates to a method of manufacturing a urethane foam with a coating film formed by injection and molding, and particularly to a method suitable for manufacturing steering wheels and the like where the coating film is required to have hygroscopic properties.
＜従来の技術＞
ウレタンフオーム製のステアリングホイール
は、一般に、上記のような成形方法、いわゆるモ
ールドコート法により製造していた。その理由
は、インテグラルスキン法であると、使用目的に
耐える表皮を得ようとした場合、全体の密度を高
くし、かつ、ウレタンフオーム配合液も特殊な高
価なものとなり、さらには、反応の遅い無黄変性
タイプのものを使用することは実質上できず、黒
色以外の色物への適用が困難であつた。<Prior Art> Steering wheels made of urethane foam have generally been manufactured by the above-mentioned molding method, the so-called mold coating method. The reason for this is that when using the integral skin method, in order to obtain an epidermis that can withstand the intended use, the overall density must be increased, the urethane foam compounded solution must be special and expensive, and furthermore, the reaction It is virtually impossible to use a slow non-yellowing type, and it is difficult to apply it to objects with colors other than black.
また、フオーム成形品に離型後、無黄変性タイ
プのウレタン塗料を塗布することも考えられる
が、離型後、成形品表面に付着している離型剤除
去などの洗浄工程が必要となり望ましくない。な
お、インモールド法の公知技術としては、特公昭
57−9579・59−36925号公報などがある。 It is also possible to apply a non-yellowing type urethane paint to the foam molded product after it is released from the mold, but this is not desirable as it requires a cleaning process to remove the mold release agent adhering to the surface of the molded product. do not have. In addition, as a publicly known technology of the in-mold method, the
There are publications such as 57-9579 and 59-36925.
＜発明が解決しようとする問題点＞
しかし、上記インモールド法で製造したステア
リングホイール（塗膜付きウレタンフオーム）
は、塗膜が微孔質（ポロメリツク）でなく、リム
部における吸湿性、透湿性などに欠け、リム部把
持時の触感が必ずしも良好とは言えなかつた（汗
バミなどの現象が発出しやすい）。<Problems to be solved by the invention> However, the steering wheel manufactured by the above in-mold method (urethane foam with coating film)
The coating film was not microporous, and the rim part lacked moisture absorption and moisture permeability, and the tactile sensation when gripping the rim part was not necessarily good (phenomena such as sweat stains were likely to occur). ).
＜問題点を解決するための手段＞
本発明考案は、上記問題点を解決すべく、鋭意
開発に努力をした結果、下記構成の塗膜付きウレ
タンフオームの製造方法に想到し得た。<Means for Solving the Problems> In order to solve the above-mentioned problems, the invention of the present invention has made earnest efforts in development, and as a result, it has been possible to come up with a method for manufacturing a urethane foam with a coating film having the following configuration.
モールドコート法で塗膜付きウレタンフオーム
を製造する方法において、ウレタン系塗料として
水分を所定量混合したものを用いるとともに、離
型後の表皮付きウレタンフオームを、100〜110℃
の加熱雰囲気に保持して、塗膜中の水分を蒸発さ
せることにより塗膜を微孔質とすることを特徴と
する。 In the method of manufacturing urethane foam with a coated film using the mold coating method, a urethane paint mixed with a predetermined amount of water is used, and the urethane foam with a skin is heated at 100 to 110°C after being released from the mold.
It is characterized by making the coating film microporous by evaporating the moisture in the coating film by maintaining it in a heated atmosphere of
＜実施の態様＞
本発明の塗膜付きウレタンフオームの製造方法
を、ステアリングホイールを例に採り説明をす
る。また、配合部数を示す「部」は、特にことわ
らない限り「重量部」のことである。<Embodiments> The method for manufacturing a coated urethane foam of the present invention will be explained using a steering wheel as an example. Further, "parts" indicating the number of parts to be blended means "parts by weight" unless otherwise specified.
Ｉ まず、第１図に示すような成形用金型（上・
下型）１，２の製品キヤビテイ４面にウレタン
樹脂塗料で塗膜５を形成する。I First, make a molding die (upper/lower) as shown in Figure 1.
A coating film 5 is formed with urethane resin paint on the four sides of the product cavities of the lower molds 1 and 2.
このとき、ウレタン樹脂塗料は、固形分（樹
脂分）100部に対して水30〜100部混合（例えば
プロペラ混合機により混合）したものを用い
る。含水量が上記数値範囲外では、塗膜の微孔
質状態が、過小、過多となりそれぞれ望ましく
ない。ウレタン樹脂塗料としては、下記の一液
型又は二液型のものを用いることができる。 At this time, the urethane resin paint used is a mixture of 30 to 100 parts of water (for example, mixed with a propeller mixer) to 100 parts of solid content (resin content). If the water content is outside the above numerical range, the microporous state of the coating film will be too small or too large, which is undesirable. As the urethane resin paint, the following one-component type or two-component type can be used.
(1) 一液型塗料としては、ブロツクされたポリ
イソシアネートプレポリマーとポリオールと
の混合物からなる加熱硬化型でもよいが、通
常、長鎖ポリオール（通常アジペート型）と
脂肪族ポリイソシアネートからなるソフトセ
グメントと、短鎖ポリオールと脂肪族ポリイ
ソシアネートからなるハードセグメントで構
成されるリニアポリウレタン（熱可塑性ポリ
ウレタン）を有機溶剤に溶かした無黄変性リ
ニアポリウレタン塗料を用いる。さらに、耐
溶剤性及び強度（耐摩耗性）等の見地から、
前出の特公昭57−9579号公報で提案されてい
るごとく水素添加ジフエニルメタンジイソシ
アネート、ヘキサメチレンジイソシアネー
ト、イソホロンジイソシアネート等の脂肪族
ジイソシアネートのプレポリマーを樹脂分
100部に対して５〜30部添加したものを用い
ることが望ましい。なお、熱可塑性ポリウレ
タンは末端OH基の完全熱可塑性タイプと、
アロフアネートを生成し部分的に架橋点を有
する不完全熱可塑性タイプとがあるが、特に
限定されない。 (1) As a one-component paint, a heat-curing type made of a mixture of a blocked polyisocyanate prepolymer and a polyol may be used, but it is usually a soft segment made of a long-chain polyol (usually an adipate type) and an aliphatic polyisocyanate. A non-yellowing linear polyurethane paint is used in which linear polyurethane (thermoplastic polyurethane) composed of hard segments consisting of short-chain polyols and aliphatic polyisocyanates is dissolved in an organic solvent. Furthermore, from the standpoint of solvent resistance and strength (wear resistance),
As proposed in the aforementioned Japanese Patent Publication No. 57-9579, prepolymers of aliphatic diisocyanates such as hydrogenated diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, etc.
It is desirable to use 5 to 30 parts added per 100 parts. In addition, thermoplastic polyurethane is completely thermoplastic type with terminal OH group,
There is an incomplete thermoplastic type that produces allophanate and partially has crosslinking points, but it is not particularly limited.
(2) 二液型としては、通常、ポリエステルポリ
オールをベースとしポリイソシアネートを硬
化剤とするものを用いる。ここで、前出の特
公昭59−36925号に提案されているが如く、
ウレタン塗料の硬化促進用触媒を、単独で又
は離型剤中に混合し、製品キヤビテイ面に塗
布してから塗料を塗布することが望ましい。 (2) As a two-component type, one that is based on polyester polyol and uses polyisocyanate as a curing agent is usually used. Here, as proposed in the aforementioned Special Publication No. 59-36925,
It is desirable to apply a catalyst for accelerating the curing of urethane paint alone or in a mixture with a mold release agent to the product cavity surface before applying the paint.
上記各ウレタン樹脂塗料の塗布方法は、浸
漬け、刷毛塗りでもかまわないが、スプレー
によるのが均一な膜厚で容易に得られ望まし
い。又は塗膜厚は乾燥厚で10〜50μmとなる
ようにする。 The above-mentioned urethane resin paints may be applied by dipping or brushing, but spraying is preferable because a uniform film thickness can be easily obtained. Alternatively, the coating film thickness should be 10 to 50 μm in dry thickness.
次に、下型２に芯金７をセツトし、図例の如
く、金型１，２を閉じて、ウレタンフオーム配
合液を、金型の製品キヤビテイ４に注入して形
成する。このとき、生産性の見地から、反応射
出成形により行なう。また、塗膜を形成した場
合の塗膜強度の信頼性を確保する見地から（特
にウレタン塗料として一液型をした場合塗膜を
厚くできないため）、フオーム構造が内層部か
ら外層部へ移るに従つて高くなるインテグラル
スキンフオーム構造となる配合液及び成形条件
とすることが望ましい。配合液は、通常、ポリ
オール成分をポリエーテル系及び／又はポリマ
ーポリオール系、ポリイソシアネート成分を
MDI（４，4′−ジフエニルメタンジイソシアネ
ート）系、発泡剤をフレオン（デユポン社商品
名）とし、さらにはアミン系及び／又は錫系の
触媒、及び老化防止剤、顔料などの配合薬品を
適宜配合した公知のものを用いる。 Next, the core metal 7 is set in the lower mold 2, the molds 1 and 2 are closed as shown in the figure, and the urethane foam mixture is injected into the product cavity 4 of the mold to form the product. At this time, from the viewpoint of productivity, reaction injection molding is used. In addition, from the standpoint of ensuring the reliability of the strength of the paint film when it is formed (especially since it is not possible to thicken the paint film when using a one-component type urethane paint), it is important to ensure that the foam structure moves from the inner layer to the outer layer. Therefore, it is desirable to use a compounding solution and molding conditions that result in an integral skin form structure with a high thickness. The compounded liquid usually contains a polyether-based and/or polymer polyol-based polyol component and a polyisocyanate component.
MDI (4,4'-diphenylmethane diisocyanate) type, Freon (trade name of Dupont) as the blowing agent, and appropriate compounded chemicals such as amine-based and/or tin-based catalysts, anti-aging agents, and pigments. Use a known compound.
注入材料が硬化完了後、離型して得たウレタ
ンフオーム（ステアリングホイール）を、100
〜110℃の加熱雰囲気中に保持する（通常２〜
５分間）。すると、塗膜中の含有水分が蒸発す
ることにより、塗膜が微孔質となる。100℃未
満では、蒸発速度が遅すぎて、生産性が悪いと
ともに塗膜が微孔質となりがたく、110℃を越
えると蒸発が突沸的になり塗膜表面にピンホー
ルなどの外観不良が発出しやすい。 After the injection material has hardened, the urethane foam (steering wheel) obtained by releasing the mold is
Maintained in a heated atmosphere of ~110℃ (usually 2~
5 minutes). Then, the moisture contained in the coating film evaporates, and the coating film becomes microporous. If the temperature is below 100℃, the evaporation rate is too slow, resulting in poor productivity and the coating film becomes difficult to form.If the temperature exceeds 110℃, the evaporation becomes bumpy, causing visual defects such as pinholes on the coating surface. Easy to take out.
＜発明の作用・効果＞
本発明の塗膜付きウレタンフオームの製造方法
は、モールドコート法で製造するに際し、ウレタ
ン系塗料として水を所定量混合したものを用いる
とともに、離型後の塗膜付きウレタンフオーム
を、100〜110℃の加熱雰囲気に保持して、塗膜中
の水分を蒸発て塗膜を微孔質とすることにより、
表皮が吸湿性・透湿性を有するものとなる。従つ
て、ステアリングホイールなど把持部を有する成
形品（ウレタンフオーム）に適用した場合、汗バ
ミなどのない良好な触感を有するものとすること
ができる。<Operations and Effects of the Invention> The method for manufacturing a urethane foam with a coating film according to the present invention uses a urethane paint mixed with a predetermined amount of water when manufacturing it by a mold coating method, and also uses a urethane foam with a coating film attached after release from the mold. By keeping the urethane foam in a heated atmosphere of 100 to 110℃ and evaporating the water in the coating film, the coating film becomes microporous.
The epidermis becomes hygroscopic and moisture permeable. Therefore, when applied to a molded product (urethane foam) having a grip such as a steering wheel, it can have a good tactile feel without sweat stains.
＜実施例＞
本発明をより良く理解するために実施例を次に
挙げる。<Examples> In order to better understand the present invention, examples are given below.
下記組成のモールドコート用塗料(a)を、金型の
製品キヤビテイ面に15〜20μm（乾燥膜厚）となる
ようにスプレーガンで塗布後、５分間、常温放置
した後、金型内に芯金をセツトし、金型を閉じ、
下記組成のインテグラルフオーム配合液(b)を用い
て下記条件(c)で反応射出により成形を行なつた。
離型後のステアリングホイールを100℃の恒温槽
中で３分間保持した。こうして得たステアリング
ホイールは、実車に装着して長時間把持しても、
手に汗バミが発生せず、良好な触感であつた。 Apply mold coating paint (a) with the following composition to the product cavity surface of the mold to a thickness of 15 to 20 μm (dry film thickness) with a spray gun, leave it at room temperature for 5 minutes, and then apply the core inside the mold. Set the gold, close the mold,
Molding was carried out by reaction injection using an integral foam compounded liquid (b) having the following composition and under the following conditions (c).
The steering wheel after being released from the mold was kept in a constant temperature bath at 100°C for 3 minutes. Even if the steering wheel obtained in this way is attached to an actual vehicle and held for a long time,
There was no sweat buildup on the hands, and the product had a good texture.
(a) モールドコート用塗料
一液型ポリウレタン 100部
メチルエチルケトン 20
トルエン 15
水 50
水添MDI ６
(b) フオーム配合液
ポリエーテルポリオール（３官能；分子量
5000） 100部
ジエチレングリコール 18部
タブコ 33−LV（触媒；三共エアプロダクト社
商品名） 2.5部
フレオン−11（発泡剤；デユポン社商品名）
16部
顔料 ６部
MDIプレポリマー（NCO23％） 65部
(c) 成形条件
射出速度 150g／sec
射出圧力 ポリオール・イソシアネートとも
150Kg／cm2
射出時間 4.0sec
金 型 ニツケル電鋳２本スポークタイプ
金型温度 50℃
脱型時間 ２分(a) Paint for mold coating One-component polyurethane 100 parts Methyl ethyl ketone 20 Toluene 15 Water 50 Hydrogenated MDI 6 (b) Foam compounding liquid Polyether polyol (trifunctional; molecular weight
5000) 100 parts Diethylene glycol 18 parts Tabco 33-LV (Catalyst; Sankyo Air Products Co., Ltd. product name) 2.5 parts Freon-11 (Blowing agent; Dupont Co., Ltd. product name)
16 parts Pigment 6 parts MDI prepolymer (NCO23%) 65 parts (c) Molding conditions Injection speed 150g/sec Injection pressure Both polyol and isocyanate
150Kg/cm 2 Injection time 4.0sec Mold Nickel electroformed 2 spoke type Mold temperature 50℃ Demolding time 2 minutes
第１図は本発明の製造方法において、使用する
金型（閉状態材料注入前）を示す概略断面図であ
る。
１……成形用金型（上型）、２……成形用金型
（下型）、４……製品キヤビテイ、５……塗膜。
FIG. 1 is a schematic cross-sectional view showing a mold used (before material is injected in a closed state) in the manufacturing method of the present invention. 1... Molding die (upper die), 2... Molding die (lower die), 4... Product cavity, 5... Paint film.
Claims (1)
脂塗料で塗膜を形成後、金型を閉じてウレタンフ
オーム配合液を製品キヤビテイに注入して成形す
る塗膜付きウレタンフオームの製造方法におい
て、 前記ウレタン系塗料として、固形分（樹脂分）
100重量部に対して水30〜100重量部混合したもの
を用いるとともに、 離型後の前記表皮付きウレタンフオームを、
100〜110℃の加熱雰囲気に保持して、前記塗膜中
の水分を蒸発させることにより前記塗膜を微孔質
とする ことを特徴とする塗膜付きウレタンフオームの製
造方法。[Scope of Claims] 1. A urethane foam with a coating film formed by forming a coating film with a urethane resin paint on the product cavity surface of a molding mold, then closing the mold and injecting a urethane foam compounded liquid into the product cavity. In the manufacturing method, as the urethane paint, the solid content (resin content)
Using a mixture of 30 to 100 parts by weight of water to 100 parts by weight, the urethane foam with the skin after being released from the mold,
A method for producing a urethane foam with a coated film, characterized in that the coated film is made microporous by maintaining the coated film in a heated atmosphere at 100 to 110°C to evaporate water in the coated film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61285508A JPS63137818A (en) | 1986-11-29 | 1986-11-29 | Manufacture of urethane foam with coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61285508A JPS63137818A (en) | 1986-11-29 | 1986-11-29 | Manufacture of urethane foam with coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63137818A JPS63137818A (en) | 1988-06-09 |
| JPH0371247B2 true JPH0371247B2 (en) | 1991-11-12 |
Family
ID=17692436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61285508A Granted JPS63137818A (en) | 1986-11-29 | 1986-11-29 | Manufacture of urethane foam with coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63137818A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2402647B (en) * | 2003-06-14 | 2007-07-04 | Univ Warwick | Coating injection moulded articles |
-
1986
- 1986-11-29 JP JP61285508A patent/JPS63137818A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63137818A (en) | 1988-06-09 |
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