JPH02238056A - Molded resin body - Google Patents
Molded resin bodyInfo
- Publication number
- JPH02238056A JPH02238056A JP5797289A JP5797289A JPH02238056A JP H02238056 A JPH02238056 A JP H02238056A JP 5797289 A JP5797289 A JP 5797289A JP 5797289 A JP5797289 A JP 5797289A JP H02238056 A JPH02238056 A JP H02238056A
- Authority
- JP
- Japan
- Prior art keywords
- silicone oil
- resin
- inorganic filler
- centistokes
- parts
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 36
- 239000011347 resin Substances 0.000 title claims abstract description 36
- 229920002545 silicone oil Polymers 0.000 claims abstract description 41
- 239000011256 inorganic filler Substances 0.000 claims abstract description 19
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 13
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 8
- 235000010290 biphenyl Nutrition 0.000 claims abstract description 7
- 239000004305 biphenyl Substances 0.000 claims abstract description 7
- 125000006267 biphenyl group Chemical group 0.000 claims abstract description 7
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920003216 poly(methylphenylsiloxane) Polymers 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 4
- 235000010216 calcium carbonate Nutrition 0.000 abstract description 4
- 229920005990 polystyrene resin Polymers 0.000 abstract description 4
- 229920000178 Acrylic resin Polymers 0.000 abstract description 3
- 239000004925 Acrylic resin Substances 0.000 abstract description 3
- 239000004793 Polystyrene Substances 0.000 abstract description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003086 colorant Substances 0.000 abstract description 3
- 239000000314 lubricant Substances 0.000 abstract description 2
- 239000003960 organic solvent Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、特に磁気テープカセットケースの寸法精度及
び寸法安定性を改善したものに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention particularly relates to a magnetic tape cassette case with improved dimensional accuracy and dimensional stability.
磁気テープカセットは、オーディオテーブ、ビデオテー
プ等を収納し、そのままの状態で使用して記録、再生で
きるものであるが、そのケースは一般には単一プラスチ
ック材で成形された下ケースと上ケースを組合わせて構
成される。このようなプラスチック材としては、オーデ
ィオテープ用カセットの場合、ポリスチレン樹脂、アク
リル樹脂、ポリプロピレン樹脂が用いられ、ビデオカセ
７｝の場合にはＡＢＳ樹脂が広く用いられている。Magnetic tape cassettes can store audio tapes, video tapes, etc. and can be used for recording and playback as they are, but the case generally consists of a lower case and an upper case molded from a single plastic material. Composed of combinations. As such plastic materials, polystyrene resin, acrylic resin, and polypropylene resin are used in the case of audio tape cassettes, and ABS resin is widely used in the case of video cassettes 7.
近年、磁気記録用素材に金属磁性粉が用いられるように
なってから、短波長領域での記録が容易にできるように
なり、それに伴い、カセットケースに対しても、寸法精
度及び寸法安定性に対する要求が厳しくなって来た．
このような要求に対して、従来用いられるポリスチレン
樹脂、ａｓｓ４！ｆ脂等の単一樹脂の成形体からなるケ
ースは、使用温度範囲が４０℃を超えるような場合、ケ
ースに変形が生じ、寸法安定性に欠けていた。In recent years, metal magnetic powder has been used as a magnetic recording material, making it easier to record in the short wavelength range. Requirements have become stricter. In response to these demands, the conventionally used polystyrene resin, ASS4! A case made of a single resin molded body such as F resin is deformed and lacks dimensional stability when the operating temperature range exceeds 40°C.
このような寸法安定性を改善する目的で、炭酸カルシウ
ムのような無機フィラーを上記樹脂中に充填した複合材
料が用いられている。In order to improve such dimensional stability, composite materials are used in which the resin is filled with an inorganic filler such as calcium carbonate.
一かしながら、樹脂と無機フィラーの親和性が悪く、い
わゆる濡れ性が低いために、樹脂に無機フィラーを機械
的に混合分散させても樹脂中への分散が悪く、均一分散
ができないため、成形時の流動性が悪く、成形体の材質
にむらができてケースの寸法精度及び寸法安定性がまだ
十分でない．本発明の目的は、樹脂と無機フィラーの混
合物の流動性を改善することによりこれら複合材料から
得られる寸法精度及び寸法安定性に優れた樹脂成形体を
提供するものである．
〔課題を解決するための手段〕
本発明は、上記課題を解決するために、 樹脂と無機フ
ィラーを含有する複合材料から成形された磁気テープカ
セットにおいて、上記複合材料にシリコンオイルを含有
することを特徴とする磁気テープカセットを提供するも
のである。この際、複合材料は樹脂１００重量部、無機
フィラー５〜２００重量部、シリコンオイル〜１００，
１〜ＩＱ．Ｏｆｉ量部含有すること、また、シリコンオ
イルとしてはジメチルシリコンオイル（粘度１０〜１０
０，０００センチストークス）、メチルフエニルシリコ
ンオイル（粘度１０〜１００，０００センチストークス
）、モノメチルシリコンオイル（粘度１０〜１００，０
００センチストークス）、ジフェニルシリコンオイル（
粘度１０〜１００，０００センチストークス）の内の１
種又は２種以上からなることも好ましい。However, because the affinity between the resin and the inorganic filler is poor, so-called low wettability, even if the inorganic filler is mechanically mixed and dispersed in the resin, the dispersion in the resin is poor and uniform dispersion cannot be achieved. The fluidity during molding is poor, the material of the molded product is uneven, and the dimensional accuracy and stability of the case are still insufficient. An object of the present invention is to provide a resin molded article with excellent dimensional accuracy and dimensional stability obtained from these composite materials by improving the fluidity of a mixture of resin and inorganic filler. [Means for Solving the Problems] In order to solve the above problems, the present invention provides a magnetic tape cassette molded from a composite material containing a resin and an inorganic filler, in which silicone oil is contained in the composite material. The present invention provides a magnetic tape cassette with the following characteristics. At this time, the composite material includes 100 parts by weight of resin, 5 to 200 parts by weight of inorganic filler, ~100 parts by weight of silicone oil,
1~IQ. The silicone oil should contain dimethyl silicone oil (viscosity 10-10
0,000 centistokes), methyl phenyl silicone oil (viscosity 10-100,000 centistokes), monomethyl silicone oil (viscosity 10-100,0
00 centistokes), diphenyl silicone oil (
(viscosity 10 to 100,000 centistokes)
It is also preferable to consist of one species or two or more species.
次に本発明を詳細に説明する。Next, the present invention will be explained in detail.
本発明で使用されるシリコンオイルは一般式素、メチル
基ヤエチル基等の低級アルキル基、置換又は未置換のフ
エニル基を表わし、ｎは繰り返し単位数を表す。）で表
わされ、ジメチルシリコンオイル（Ｒ１、Ｒ２がメチル
基）、メチルフェニルシリコンオイルは（Ｒ’ がフェ
ニル基、Ｒ２がメチル基）のほかにジフエニルシリコン
オイル（Ｒ１、Ｒ２がフエニル基）、モノメチルシリコ
ンオイル（Ｒ１が水素、Ｒ２がメチル基）その他のシリ
コンオイルの１種又は２種以上が用いられる。The silicone oil used in the present invention represents a general formula, a lower alkyl group such as a methyl group or a yaethyl group, or a substituted or unsubstituted phenyl group, and n represents the number of repeating units. ), dimethyl silicone oil (R1, R2 are methyl groups), methylphenyl silicone oil (R' is phenyl group, R2 is methyl group), and diphenyl silicone oil (R1, R2 are phenyl groups) , monomethyl silicone oil (R1 is hydrogen, R2 is methyl group) and other silicone oils.
本発明で使用されるシリコンオイルは、その粘度が１０
〜１０〜１００，０００センチストークスのものが好ま
しいが、これらの範囲で数十種類のものが市販されてい
る。粘度が１０センチストークスより小さいと、上記複
合材料を例えば射出成形するときに、剪断力による発熱
により樹脂が分解してしまい、シリコンオイルを添加し
た十分な効果が得られない。また粘度が１０〜１００，
０００より大きし１形時の流動性改善効果が十分でない
．
複合材料中、シリコンオイルの含有量が〜１００，ＩＭ
量部より少ないと、シリコンオイルが無機フィラーに吸
着されてしまい、成形時に金型内部での流動性改善に寄
与しないことがある。また、１０重量部より多いと、樹
脂相互間の結合力を低下させ、樹脂成形体の機械的強度
を低下させることがある．本発明で使用される樹脂とし
ては、ボリスチレン樹脂、アクリル樹脂、ボリプロビレ
ン樹脂、ＡＢ５樹脂等の１種又は２種以上が用いられる
。The silicone oil used in the present invention has a viscosity of 10
~10 to 100,000 centistokes are preferred, but dozens of types within these ranges are commercially available. If the viscosity is less than 10 centistokes, the resin will decompose due to heat generation due to shear force when the composite material is injection molded, for example, and the sufficient effect of adding silicone oil will not be obtained. Also, the viscosity is 10-100,
If it is larger than 000, the fluidity improvement effect in the 1st form is not sufficient. The content of silicone oil in the composite material is ~100,IM
If the amount is less than 1 part, the silicone oil will be adsorbed by the inorganic filler and may not contribute to improving the fluidity inside the mold during molding. Moreover, if the amount is more than 10 parts by weight, the bonding force between the resins may be reduced and the mechanical strength of the resin molded article may be reduced. As the resin used in the present invention, one or more types of polystyrene resin, acrylic resin, polypropylene resin, AB5 resin, etc. are used.
また、本発明において使用される無機フィラーとしては
、ＣａＣＯ３ 、Ｔｉ０２、Ｓｉ０２、ＺｎＯ ， Ｆ
ｅ２０３、Ａ１２０３、ＣＩ２ｏ３、Ｃｒ０２、Ｐｂ３
０４ 、ＣｕＯ等が挙げられ、これらの１種又は２種以
上が用いられる．これらの無機フィラーの平均粒径は〜
１００，１〜１〜１００，０μｍが好ましい．なお、粒
径は光透過式粒度分布計により測定できる．
上記樹脂、無機フィラーの使用割合としては、樹脂１０
０重量部に対して無機フィラー５〜２００重量部が例示
できる．
本発明に使用される複合材料には着色剤、潤滑剤等の他
の添加剤も併用できる。着色剤は樹脂と予め練り合わせ
た、いわゆるマスターバッチも使用できる。In addition, the inorganic fillers used in the present invention include CaCO3, Ti02, Si02, ZnO, F
e203, A1203, CI2o3, Cr02, Pb3
04, CuO, etc., and one or more of these may be used. The average particle size of these inorganic fillers is ~
100.1 to 1 to 100.0 μm is preferable. The particle size can be measured using a light transmission particle size distribution analyzer. The ratio of the resin and inorganic filler used is 10% resin.
An example of this is 5 to 200 parts by weight of the inorganic filler to 0 parts by weight. Other additives such as colorants and lubricants can also be used in the composite material used in the present invention. A so-called masterbatch, which is a coloring agent mixed with a resin in advance, can also be used.
本発明の樹脂成形体を製造するには、上記樹脂と無機フ
ィラーの何れか一方又は両方に上記シリコンオイルを配
合してから全成分を配合しても良いし、これら３成分を
同時に配合しても良い。この際、シリコンオイルはトル
エンのような有機溶剤に溶解させた溶液として配合する
ことも均一に配合できる点で好ましい。このようにして
得られた全成分の配合物は溶融混合されてから例えば射
出成形等により成形される。In order to produce the resin molded article of the present invention, the silicone oil may be blended with either or both of the resin and inorganic filler, and then all components may be blended, or these three components may be blended at the same time. Also good. At this time, it is preferable to blend the silicone oil as a solution dissolved in an organic solvent such as toluene, since it can be blended uniformly. The thus obtained blend of all components is melt-mixed and then molded, for example, by injection molding.
本発明の樹脂成形体は、磁気記録装置のガイドローラ、
テープガイドピンのような成形体、カメラ、時計の外枠
、スピーカボックス等精密機器に用いられるケース等寸
法精度、寸法安定性を必要とするものにも用いられる．
（作用）
シリコンオイルは無機フィラー表面に吸着し、その表面
活性を低下させるため、無機フィラーの樹脂に対する濡
れ性が向上するものと，考えられる．このように濡れ性
が改善されると成形時の流動性が改善され、成形品の材
質が均一になると考えられる．
（実施例）
次に実施例を説明する．なお、「部」は重量部を示す。The resin molded article of the present invention can be used as a guide roller of a magnetic recording device,
It is also used for items that require dimensional accuracy and stability, such as molded objects such as tape guide pins, cases used for precision equipment such as cameras, outer frames of watches, and speaker boxes. (Effect) Silicone oil adsorbs to the surface of the inorganic filler and reduces its surface activity, which is thought to improve the wettability of the inorganic filler to the resin. It is thought that improving wettability in this way improves fluidity during molding and makes the material of the molded product uniform. (Example) Next, an example will be explained. Note that "parts" indicate parts by weight.
実施例Ｉ
ＧＰ−ＰＳ ７０
部（ガラス質ボリスチレンで商品名デンカスチロール）
ｉＴ−２（電気化学工業ｎ製）であり、ベース材として
使用）
旧−ＰＳ ３０部（
ハイインパクトポリスチレンで商品名デンカスチロール
Ｈｉｓ−１であり、耐衝撃付与材とて使用）ジメチルシ
リコンオイル ２部（信越化学社ｖ！
Ｊ１．０００センチストークス）炭酸カルシウム
１００部（平均粒径２，０μＩＩｌ
（粒度分布〜１００，５〜４．０μ■））シランカップ
リング剤 １部（アルキル系でメチ
ルトリメトキシシラン）ＭＢ
Ｓ部（カーボンと樹脂（２０ ：８０
）からなるマスターバンチ）
上記配合物を混合機により熔融混合し、この混合物を射
出成形機にて成形し、第１図に示すフィリノブス社型コ
ンパクトカセットハーフ（片側ケース）を得た。これを
１００個作製し、それぞれについて三次元測定機（ＸＹ
ＺＡＸ） （東京精密社製）にて第１図に示す横、縦の
寸法を（サンプル数ｎ−１００個）測定した結果を表に
示す。なお、表中、１０〜１００，４０±０４０５は平
均ＩＱ〜１００，４０ｍ、下限（ＩＱ〜１００，４０
−〜１００，０５）鶴、上限（１０〜１００，４０ ＋
〜１００，０５） ｔｍであることを示す。縦寸法の場
合も同様である．比較例ｌ
実施例ｌにおいて、ジメチルシリコンオイルを用いなか
った以外は同様にしてカセットハーフを作製し、同様に
測定した結果を表１に示す。Example I GP-PS 70
(vitreous boristyrene, trade name: Denkastyrol)
iT-2 (manufactured by Denki Kagaku Kogyo n, used as a base material) Old-PS 30 parts (
High-impact polystyrene (trade name: DENKA STYROL His-1, used as impact-resistant material) 2 parts dimethyl silicone oil (Shin-Etsu Chemical Co., Ltd. v!
J1.000 centistokes) Calcium carbonate
100 parts (average particle size 2.0μIIl
(Particle size distribution ~100.5~4.0μ■)) Silane coupling agent 1 part (alkyl type methyltrimethoxysilane) MB
S part (carbon and resin (20:80
) The above-mentioned mixture was melt-mixed using a mixer, and this mixture was molded using an injection molding machine to obtain a compact cassette half (one-sided case) manufactured by Philinobus Co. as shown in FIG. We made 100 of these and used a three-dimensional measuring machine (XY
The horizontal and vertical dimensions shown in FIG. 1 were measured (number of samples n-100) using ZAX (manufactured by Tokyo Seimitsu Co., Ltd.), and the results are shown in the table. In addition, in the table, 10~100,40±0405 means average IQ~100,40m, lower limit (IQ~100,40m)
-~100,05) Tsuru, upper limit (10~100,40 +
~100,05) Indicates that it is tm. The same applies to the vertical dimension. Comparative Example 1 A cassette half was prepared in the same manner as in Example 1 except that dimethyl silicone oil was not used, and the results of the same measurements are shown in Table 1.
表１
実施例２
実施例ｌにおいて、ジメチルシリコンオイル（ｉ ，
０００センチストークス）２部の代わりに１〜１００，
０部用いた以外は同様にしてカセ−／ トハーフを作製
し、同様に測定した結果を表２に示す。Table 1 Example 2 In Example 1, dimethyl silicone oil (i,
000 centistokes) 1 to 100 instead of 2 parts,
Table 2 shows the results of making a cassette/to-half in the same manner except that 0 part was used and measuring in the same manner.
実施例３
実施例ｌにおいて、ジメチルシリコンオイル（１ ，
０００センチストークス）２部の代わりに、〜１００，
１部用いた以外は同様にしてカセットハーフを作製し、
同様に測定した結果を表２に示す。Example 3 In Example 1, dimethyl silicone oil (1,
000 centistokes) instead of 2 parts, ~100,
A cassette half was made in the same manner except that one part was used,
Table 2 shows the results of similar measurements.
実施例４
実施例１において、ジメチルシリコンオイル（１ ．
０００センチストークス）２部の代わりに、ジメチルシ
リコンオイル（１００，０００センチストークス）２部
用いた以外は同様にしてカセットハーフを作製し、同様
に測定した結果を表２に示す。Example 4 In Example 1, dimethyl silicone oil (1.
A cassette half was prepared in the same manner except that 2 parts of dimethyl silicone oil (100,000 centistokes) was used instead of 2 parts of dimethyl silicone oil (100,000 centistokes), and the results of measurements in the same manner are shown in Table 2.
実施例５
実施例１において、ジメチルシリコンオイル（１ ．
０００センチストークス）２部の代わりに、ジフェニル
シリコンオイル（１０センチストークス）２部用いた以
外は同様にしてカセットハーフを作製し、同様に測定し
た結果を表２に示す。Example 5 In Example 1, dimethyl silicone oil (1.
A cassette half was prepared in the same manner except that 2 parts of diphenyl silicone oil (10 centistoke) was used instead of 2 parts of diphenyl silicone oil (100 centistoke), and the results of the same measurements are shown in Table 2.
実施例６
実７ｉ％例ｌにおいて、ジメチルシリコンオイル（１，
０００センチストークス）２部の代わりに、メチルフェ
ニルシリコンオイル（１，０００センチストークス）１
部とジフェニルシリコンオイル（１〜１００，０００セ
ンチストークス）１部を用いた以外は同様にしてカセッ
トハーフを作製し、同様に測定した結果を表２に示す。Example 6 In Example 1, dimethyl silicone oil (1,
1 part methylphenyl silicone oil (1,000 centistokes) instead of 2 parts (1,000 centistokes)
A cassette half was prepared in the same manner except that 1 part and 1 part of diphenyl silicone oil (1 to 100,000 centistokes) were used.Table 2 shows the results of measurements made in the same manner.
表２
脂と無機フィラーの複合材料を樹脂成形体の成形材料に
したので、その成形工程で流れが改善され均質な樹脂成
形体を得ることができる。これにより寸法精度が良く、
かつ４０℃のような高温で使用されても寸法安定性の良
いカセソトケースを提供でき、金属磁性扮を用いた磁気
テープのような短波長領域の記録ができるものに対して
最通なカセットケースを提供できる．Table 2 Since the composite material of fat and inorganic filler was used as the molding material for the resin molding, the flow was improved during the molding process and a homogeneous resin molding could be obtained. This provides good dimensional accuracy,
In addition, we can provide a cassette case that has good dimensional stability even when used at high temperatures such as 40 degrees Celsius, and is suitable for recording in short wavelength regions such as magnetic tape using metal magnetic material. Can be provided.
第１図は磁気テープカセットケースの斜視図である。
平成１年３月１３日
上記結果から、実施例のものはいずれも横、縦の寸法の
パラッキが小さいの比べ、比較例のもののバラッキは数
倍も大きいことがわかる。
〔発明の効果〕FIG. 1 is a perspective view of a magnetic tape cassette case. March 13, 1999 From the above results, it can be seen that the variations in the horizontal and vertical dimensions are small in all of the examples, but the variations in the comparative examples are several times larger. 〔Effect of the invention〕
Claims (3)
された樹脂成形体において、上記複合材料にシリコンオ
イルを含有することを特徴とする樹脂成形体。(1) A resin molded article formed from a composite material containing a resin and an inorganic filler, characterized in that the composite material contains silicone oil.
２００重量部、シリコンオイル０．１〜１０．０重量部
含有することを特徴とする請求項１記載の樹脂成形体。(2) Composite material includes 100 parts by weight of resin and 5 to 5 parts by weight of inorganic filler.
2. The resin molded article according to claim 1, containing 200 parts by weight and 0.1 to 10.0 parts by weight of silicone oil.
１０〜１００，０００センチストークス）、メチルフェ
ニルシリコンオイル（粘度１０〜１００，０００センチ
ストークス）、モノメチルシリコンオイル（粘度１０〜
１００，０００センチストークス）、ジフェニルシリコ
ンオイル（粘度１０〜１００，０００センチストークス
）の内の１種又は２種以上からなることを特徴とする請
求項１又は２記載の樹脂成形体。(3) The silicone oil is dimethyl silicone oil (viscosity 10 to 100,000 centistokes), methylphenyl silicone oil (viscosity 10 to 100,000 centistokes), monomethyl silicone oil (viscosity 10 to 100,000 centistokes),
100,000 centistokes) and diphenyl silicone oil (viscosity 10 to 100,000 centistokes).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5797289A JPH02238056A (en) | 1989-03-13 | 1989-03-13 | Molded resin body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5797289A JPH02238056A (en) | 1989-03-13 | 1989-03-13 | Molded resin body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02238056A true JPH02238056A (en) | 1990-09-20 |
Family
ID=13070927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5797289A Pending JPH02238056A (en) | 1989-03-13 | 1989-03-13 | Molded resin body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02238056A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5894391A (en) * | 1994-09-21 | 1999-04-13 | Sony Corporation | Tape cassette |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6088064A (en) * | 1983-10-21 | 1985-05-17 | Seiko Epson Corp | Conductive resin composition |
| JPS61275357A (en) * | 1985-05-31 | 1986-12-05 | Denki Kagaku Kogyo Kk | Thermoplastic resin composition |
| JPS63297453A (en) * | 1987-05-29 | 1988-12-05 | Polyplastics Co | Thermoplastic resin composition |
-
1989
- 1989-03-13 JP JP5797289A patent/JPH02238056A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6088064A (en) * | 1983-10-21 | 1985-05-17 | Seiko Epson Corp | Conductive resin composition |
| JPS61275357A (en) * | 1985-05-31 | 1986-12-05 | Denki Kagaku Kogyo Kk | Thermoplastic resin composition |
| JPS63297453A (en) * | 1987-05-29 | 1988-12-05 | Polyplastics Co | Thermoplastic resin composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5894391A (en) * | 1994-09-21 | 1999-04-13 | Sony Corporation | Tape cassette |
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