JPS6031928A - Compression molded product of chip urethane foam - Google Patents
Compression molded product of chip urethane foamInfo
- Publication number
- JPS6031928A JPS6031928A JP58140233A JP14023383A JPS6031928A JP S6031928 A JPS6031928 A JP S6031928A JP 58140233 A JP58140233 A JP 58140233A JP 14023383 A JP14023383 A JP 14023383A JP S6031928 A JPS6031928 A JP S6031928A
- Authority
- JP
- Japan
- Prior art keywords
- urethane foam
- chip
- hard
- chip urethane
- molded product
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/10—Applying counter-pressure during expanding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
- B29C67/207—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising impregnating expanded particles or fragments with a binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は各種車両部品等に使用されるチップウレタン
フオームのプレス成形品に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a press-molded product of chip urethane foam used for various vehicle parts and the like.
従来技術
従来からチップウレタンフオームをプレス成形して得ら
れるウレタンフオーム製品が各方面で用いられている。BACKGROUND OF THE INVENTION Urethane foam products obtained by press-molding chip urethane foam have been used in various fields.
このプレス成形に供されるチップウレタンフオームは一
般に軟質チップウレタンフオームを主原料とし、従って
そのようなチップウレタンフオームをプレス成形して得
られる製品はクッションf1が良好である反面、硬度は
高くなく、低硬度部品どしての利用が多かった。すなわ
ち、高硬度のパッド等の部品としてそのようなプレス製
品を利用するためには相当高圧の圧縮を行なって硬度を
高める必要が有り、そのようにした場合硬度が高くなる
反面、高密度化して重くなり、チップウレタンフオーム
ブレス成形品の軽石であるという利点が失われるという
問題があった。また、その場合、使用材料の分量も多く
なり、製品の原価が高くなるという不都合もあった。The chip urethane foam subjected to this press molding is generally made of soft chip urethane foam as the main raw material. Therefore, the product obtained by press molding such chip urethane foam has a good cushion f1, but its hardness is not high. It was often used as low-hardness parts. In other words, in order to use such pressed products as parts such as high-hardness pads, it is necessary to increase the hardness by compressing them at a considerably high pressure. There was a problem in that the chip urethane foam breath molded product became heavy and lost the advantage of being made of pumice. In addition, in this case, the amount of materials used also increases, resulting in an inconvenience that the cost of the product increases.
他面、例えば車両のウレタンバンパーを製造する際には
、半硬質チップウレタンフオームや硬質チップウレタン
フオームの廃材が生じ環境衛生等の観点からその再利用
の方途が望まれていた。On the other hand, when manufacturing urethane bumpers for vehicles, for example, semi-rigid chip urethane foam and hard chip urethane foam are produced as waste materials, and a method for reusing them has been desired from the viewpoint of environmental hygiene and the like.
発明の目的
この発明は以上の従来の事情に鑑みてなされたものであ
って、高硬度であるとともに軽量であり、廃材を利用す
ることによって安価に製造することができるチップウレ
タンフオームのプレス成形品を提供することを目的とす
るものである。Purpose of the Invention The present invention has been made in view of the above-mentioned conventional circumstances, and provides a press-molded product of chip urethane foam that has high hardness, is lightweight, and can be manufactured at low cost by using waste materials. The purpose is to provide the following.
発明の構成
すなわちこの発明のチップウレタンフオームのプレス成
形品は軟質チップウレタンフオームに半硬質チップウレ
タンフオーム、硬質チップウレタンフオームのうち少な
くともいずれか一方を混合し、これをウレタン樹脂に均
一に分散させて成ることを特徴とするものである。The constitution of the invention, that is, the press-molded product of chip urethane foam of this invention is made by mixing soft chip urethane foam with at least one of semi-hard chip urethane foam and hard chip urethane foam, and uniformly dispersing this in a urethane resin. It is characterized by:
発明の内容 以下にこの発明の内容をさらに詳細に説明する。Contents of the invention The content of this invention will be explained in more detail below.
この発明はそのチップ原料として、前述したように軟質
チップウレタンフオームにその軟質チップウレタンフオ
ームよりも高密度の半硬質チップウレタンフオームおよ
び/または硬質ウレタンフオームを配合したものが用い
られる。この軟質チップウレタンフオームに配合される
半硬質チップウレタンフオームとしては、例えば、ウレ
タンバンパーフオームの廃材等を使用することができる
。As described above, this invention uses a soft chip urethane foam mixed with a semi-hard chip urethane foam and/or a hard urethane foam having a higher density than the soft chip urethane foam. As the semi-hard chip urethane foam to be mixed with the soft chip urethane foam, for example, waste materials of urethane bumper forms can be used.
また半硬質チップウレタンフオームおよび/または硬質
チップウレタンフオームを軟質チップウレタンフオーム
に配合する割合は、軟質ウレタンフオーム100重間部
に対して半硬質チップウレタンフオームおよび/または
硬質ウレタンフオームを合11で30重量部以上50重
量部とするのが好ましい。30重i1部未満である揚台
製品の硬度は不充分となり、逆に50重量部を越える場
合は、製品が過小と416゜
上述のように密度の異なるチップウレタンフオームを配
合したチップ原料をウレタン接着剤と混練(すなわちチ
ップをウレタン接着剤で被覆)しだ後ゆっくり反応させ
ながら必要形状に圧縮し所定の密度になるように硬化・
成形させることにより最終的にウレタン樹脂にチップウ
レタンフオームが均一に分散したプレス成形品が得られ
る。The ratio of semi-hard chip urethane foam and/or hard chip urethane foam to soft chip urethane foam is 11 parts of semi-hard chip urethane foam and 30 parts of hard chip urethane foam to 100 parts of soft urethane foam. It is preferable that the amount is 50 parts by weight or more. If the hardness of the lifting platform product is less than 30 parts by weight, the hardness will be insufficient, and if it exceeds 50 parts by weight, the product will be too small. After kneading with the adhesive (that is, coating the chip with urethane adhesive), it is slowly reacted and compressed into the required shape, and then hardened and cured to the desired density.
By molding, a press-molded product in which chip urethane foam is uniformly dispersed in the urethane resin is finally obtained.
この発明では、密度の異なる上述のチップウレタンフオ
ームを混合してこれを均一に分散させる必要が有り、し
たがってチップウレタンフオームの混合およびウレタン
接着剤との混線のための機器として例えば2@相反回転
するスクリュードラム式の混線機を用いることが望まし
い。In this invention, it is necessary to mix the above-mentioned chip urethane foams with different densities and to disperse them uniformly. Therefore, as a device for mixing the chip urethane foams and cross-talking them with the urethane adhesive, for example, 2@reciprocal rotation is used. It is preferable to use a screw drum type mixer.
3一 実施例 以下にこの発明の実施例を記す。31 Example Examples of this invention are described below.
軟質チップウレタンフオーム(密度0.04〜0.05
0/a♂)を50重量分、半硬質チップウレタンフオー
ムとしてウレタンバンパーフオーム廃材(密度0.08
〜0.10!+ /c/)を20重量分、ウレタン接着
剤(TOIとPPGとのブレンド液>30重量分を混合
してプレス成形した。Soft chip urethane foam (density 0.04~0.05
0/a♂) was used as semi-rigid chip urethane foam, and urethane bumper form waste material (density 0.08
~0.10! + /c/) and urethane adhesive (>30 weight of a blended solution of TOI and PPG) were mixed and press-molded.
なお、混合に際しては2軸組反回転するスクリュードラ
ム式の混練機を採用し、上述の密度の異なる材料を均一
に分散させた。製造工程の概略を第1図に示す。For mixing, a twin-axis anti-rotating screw drum type kneader was used to uniformly disperse the above-mentioned materials having different densities. Figure 1 shows an outline of the manufacturing process.
得られた製品について各種試験を行ないその特性を調べ
た。その結果を従来の軟質チップウレタンフオームプレ
ス成形品の特性と対比して第1表に示す。Various tests were conducted on the obtained product to investigate its characteristics. The results are shown in Table 1 in comparison with the characteristics of conventional soft chip urethane foam press molded products.
同様にこの発明を実施して種々の密度のプレス成形品を
製造してその25%硬度を測定した。その結果を種々の
密度の従来品の25%硬度測定結果に対比して第2図に
示す。Similarly, the present invention was carried out to produce press-molded products of various densities, and their 25% hardness was measured. The results are shown in FIG. 2 in comparison with the 25% hardness measurement results of conventional products with various densities.
4−
第1表
第1表から明らかであるように、同一硬度の製品の場合
、実施例のものが従来品のものよりも軒昂であるこがわ
かる。4-Table 1 As is clear from Table 1, in the case of products with the same hardness, it can be seen that the product of the example has a higher eave than the conventional product.
また第2図から明らかであるように、一般に実施例のも
のが従来品に比較して同−密度では硬度が高く例えば成
形品の硬度を14 k(1/ 25c/とすれば実施例
のものが約26%程度軽量である。Furthermore, as is clear from Fig. 2, the hardness of the example is generally higher than that of the conventional product at the same density.For example, if the hardness of the molded product is 14k (1/25c/), is about 26% lighter.
発明の効果
以上のようにこの発明によれば、軟質チップウレタンフ
オームに半硬質チップウレタンフオームおよび/または
硬質チップウレタンフオームを配合してプレス成形品を
製造するようにしたことによって、硬癩が高く軽量なプ
レス成形品を安価に製造することができ、また特にこの
発明の原料としては、例えばウレタンバンパーフオーム
の廃材を利用することができ廃棄物処理の観点において
も利点を有する。Effects of the Invention As described above, according to the present invention, a press-molded product is manufactured by blending semi-hard chip urethane foam and/or hard chip urethane foam with soft chip urethane foam. A lightweight press-molded product can be produced at low cost, and in particular, waste material from urethane bumper forms can be used as a raw material for the present invention, which is also advantageous in terms of waste disposal.
第1図はこの発明の実施例の製造工程の概略を示し、第
2図はこの発明の実施例のプレス製品と従来品とについ
て密度と硬度とを対比して示した図である。
出願人 トヨタ自動車株式会社
井上エムチービー株式会社
代理人 弁理士 豊 1)武 久
(ほか1名)
7−
(胛りS※/b別 7 ’a’% 9ど手 続 補 正
書 く方式)
昭和58年12月23日
昭和58年特許願第140233号
2、発明の名称
チップウレタンフオームのプレス成形品3、補正をする
者
事件との関係 特許出願人
住 所 愛知県豊田市トヨタ町1番地
名 称 (320) I−ヨタ白動車株式会社(ほか1
名)
4、代理人
イ1 所 東京都港区三田3丁目4番18号5、補正命
令の日イ4
7、補正の内容
(1)代理権を証明する書面を補充する。
(2)図面の浄書(内容に変更なし)FIG. 1 shows an outline of the manufacturing process of an embodiment of the present invention, and FIG. 2 is a diagram comparing the density and hardness of the pressed product of the embodiment of the invention and a conventional product. Applicant Toyota Motor Corporation Inoue MBC Co., Ltd. Agent Patent Attorney Yutaka 1) Hisashi Takeshi (and 1 other person) 7- (Access S*/b 7'a'% 9th procedure amendment writing method) Showa December 23, 1982 Patent Application No. 140233 2 Title of invention Press molded product of chip urethane foam 3 Relationship to the case of the person making the amendment Patent applicant address 1 Toyota-cho, Toyota-shi, Aichi Prefecture Name Name (320) I-Yota Hakudosha Co., Ltd. (and 1 others)
Name) 4. Agent A 1 Address: 3-4-18-5, Mita, Minato-ku, Tokyo Date of amendment order A 4 7. Contents of amendment (1) Documents certifying authority of representation shall be supplemented. (2) Engraving of drawings (no changes in content)
Claims (1)
オーム、硬質チップウレタンフオームのうち少なくとも
いずれか一方を混合し、これをウレタン樹脂に均一に分
散させて成ることを特徴とするチップウレタンフオーム
のプレス成形品。A press-molded product of chip urethane foam, characterized by mixing soft chip urethane foam with at least one of semi-hard chip urethane foam and hard chip urethane foam, and uniformly dispersing the mixture in urethane resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58140233A JPS6031928A (en) | 1983-07-29 | 1983-07-29 | Compression molded product of chip urethane foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58140233A JPS6031928A (en) | 1983-07-29 | 1983-07-29 | Compression molded product of chip urethane foam |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6031928A true JPS6031928A (en) | 1985-02-18 |
Family
ID=15264002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58140233A Pending JPS6031928A (en) | 1983-07-29 | 1983-07-29 | Compression molded product of chip urethane foam |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6031928A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02209955A (en) * | 1988-11-21 | 1990-08-21 | General Electric Co <Ge> | Useful article produced from mixed scrap plastic,and its manufacture |
JP2002321237A (en) * | 2001-04-25 | 2002-11-05 | Honda Motor Co Ltd | Method for recycling cushioning material of seat for vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5736630A (en) * | 1980-08-13 | 1982-02-27 | Matsushita Electric Works Ltd | Manufacture of heat insulating meterial |
JPS5756218A (en) * | 1980-09-18 | 1982-04-03 | Toyota Motor Corp | Manufacture of polyurethane resin molding |
-
1983
- 1983-07-29 JP JP58140233A patent/JPS6031928A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5736630A (en) * | 1980-08-13 | 1982-02-27 | Matsushita Electric Works Ltd | Manufacture of heat insulating meterial |
JPS5756218A (en) * | 1980-09-18 | 1982-04-03 | Toyota Motor Corp | Manufacture of polyurethane resin molding |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02209955A (en) * | 1988-11-21 | 1990-08-21 | General Electric Co <Ge> | Useful article produced from mixed scrap plastic,and its manufacture |
JP2002321237A (en) * | 2001-04-25 | 2002-11-05 | Honda Motor Co Ltd | Method for recycling cushioning material of seat for vehicle |
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