JPH03215563A - Thermoplastic resin composition - Google Patents
Thermoplastic resin compositionInfo
- Publication number
- JPH03215563A JPH03215563A JP1015590A JP1015590A JPH03215563A JP H03215563 A JPH03215563 A JP H03215563A JP 1015590 A JP1015590 A JP 1015590A JP 1015590 A JP1015590 A JP 1015590A JP H03215563 A JPH03215563 A JP H03215563A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- specific gravity
- carboxylic acid
- aliphatic carboxylic
- saturated aliphatic
- 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.)
- Granted
Links
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 26
- 239000011342 resin composition Substances 0.000 title claims abstract description 15
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 18
- -1 aliphatic carboxylic acid compound Chemical class 0.000 claims abstract description 17
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 4
- 150000001340 alkali metals Chemical group 0.000 claims abstract description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 4
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 16
- 239000002245 particle Substances 0.000 abstract description 8
- 238000002156 mixing Methods 0.000 abstract description 7
- 239000004734 Polyphenylene sulfide Substances 0.000 abstract description 3
- 239000012778 molding material Substances 0.000 abstract description 3
- 229920000728 polyester Polymers 0.000 abstract description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 abstract description 3
- 239000004952 Polyamide Substances 0.000 abstract description 2
- 229920002647 polyamide Polymers 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 230000000704 physical effect Effects 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000000088 plastic resin Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- VVNXEADCOVSAER-UHFFFAOYSA-N lithium sodium Chemical compound [Li].[Na] VVNXEADCOVSAER-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920000874 polytetramethylene terephthalate Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- LZOZLBFZGFLFBV-UHFFFAOYSA-N sulfene Chemical compound C=S(=O)=O LZOZLBFZGFLFBV-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 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）
本発明は熱可塑性樹脂にタングステン粉末を高充填した
射出成形材料に係り、高比重性を必嬰とする電気部品や
機械部品等に好適な熱可塑性樹脂組成物に関する。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an injection molding material in which a thermoplastic resin is highly filled with tungsten powder, and is suitable for electrical parts, mechanical parts, etc. that require high specific gravity. The present invention relates to a thermoplastic resin composition.
（従来の技術）
従来、熱可塑性樹脂に金属粉末を充填して高比重性を付
与した熱可塑性樹脂組成物が、多くの産業分野で広く使
用されている。例えば、特開昭５６−１５９２４８号公
報では、ポリテトラメチレンテレフタレートに銅．鉄．
ニノケル，アルミニウム．金等の金属粉末を配合した高
比重で且つ、成形性、熱伝導性に優れた熱可塑性樹脂組
成物が示されている。また、特公昭６１−１１２６１号
公報には、熱可塑性樹脂に平均粒径８μ〜４０μの亜鉛
粉末を配合した高比重熱可塑性樹脂組成物の製造方法が
挙げられている。(Prior Art) Conventionally, thermoplastic resin compositions in which high specific gravity is imparted by filling a thermoplastic resin with metal powder have been widely used in many industrial fields. For example, in JP-A-56-159248, copper is added to polytetramethylene terephthalate. iron.
Ninoker, aluminum. A thermoplastic resin composition containing metal powder such as gold and having a high specific gravity and excellent moldability and thermal conductivity has been disclosed. Further, Japanese Patent Publication No. 11261/1983 discloses a method for producing a high specific gravity thermoplastic resin composition in which zinc powder having an average particle size of 8 μm to 40 μm is blended with a thermoplastic resin.
しかしながら、金属粉末が配合された熱可塑性樹脂組成
物は、金属粉末の配合量増加に伴ない高比重化するが、
一方では流動性が低下し、成形品外観不良等の問題点を
有する。例えば、比重９以上の極めて高比重の熱可塑性
樹脂組成物を得ようとする場合には、金，白金，タング
ステン粉末等を使用し、且つ、高充填しなければならず
、混練、及び射出成形が極めて困難となる。However, the specific gravity of thermoplastic resin compositions containing metal powder increases as the amount of metal powder blended increases;
On the other hand, there are problems such as decreased fluidity and poor appearance of molded products. For example, when trying to obtain a thermoplastic resin composition with an extremely high specific gravity of 9 or more, gold, platinum, tungsten powder, etc. must be used and highly filled, and the composition must be kneaded and injection molded. becomes extremely difficult.
更に、金属粉末を高充填した熱可塑性樹脂組成吻を射出
成形する場合には、金属粉末間の摩擦による局部発熱が
犬き＜、熱可塑性樹脂の熱分解によるガスのｔ生、及び
成形品外観不良という問題点がある。Furthermore, when injection molding a thermoplastic resin composition highly filled with metal powder, local heat generation due to friction between the metal powders may occur, gas production due to thermal decomposition of the thermoplastic resin, and appearance of the molded product. There is a problem with defects.
（発明が解決しようとする課題）
本発明はこのような事情に鑑みなされたものであって、
その目的とするところは、高比重で、かつ、溶融時の流
動性に優れた成形性良好な熱可塑性樹脂組成物を提供す
るにある。(Problem to be solved by the invention) The present invention has been made in view of the above circumstances, and
The purpose is to provide a thermoplastic resin composition that has a high specific gravity, excellent fluidity when melted, and good moldability.
（課題を解決するための手段）
上記の目的は、熱可塑性樹脂、タングステン粉東、及び
下記−・般式（＋）で示される飽和脂肪族カルポン酸化
合物よりなる組成吻であって、上記タングステン粉末を
９０〜９８重量％、飽和脂肪族カルボン酸化合物を０．
０１〜０．５重量％含有することを特徴とする外可塑性
樹脂組成物によって達成される。(Means for Solving the Problems) The above object is to provide a composition comprising a thermoplastic resin, a tungsten powder, and a saturated aliphatic carboxylic acid compound represented by the following general formula (+). 90 to 98% by weight of powder and 0.0% of saturated aliphatic carboxylic acid compound.
This is achieved by an external plastic resin composition characterized by containing 0.01 to 0.5% by weight.
ＣＨｉ（ＣＨｚ）− Ｃｏｏ ，ＩＲ−−−−−−−−
− （ １ ）（八中、ｍは２０〜３２の整数、ｎはｌ
または）（式中、ｍはアルカリ金属、アルカリ土類金属
、あるいは脂肪族炭化水素基を表わす。）すなわち、本
発明者らは、金属粉末としてタングステン粉末を用い、
これを熱可塑性樹脂に高充填し、更に、旧記一般式（＋
）で示される飽和脂肪族カルポン酸化合物を配合するこ
とにより、熱可塑性樹脂に金属粉末を高充填しても溶融
時の流動性が良好で成形性に優れた高比重の熱可塑性樹
脂組成物が得られることを見いだし本発明を完成し７た
。CHi(CHz)-Coo,IR------
- (1) (Hanaka, m is an integer from 20 to 32, n is l
or) (in the formula, m represents an alkali metal, an alkaline earth metal, or an aliphatic hydrocarbon group). That is, the present inventors used tungsten powder as the metal powder,
This is highly filled into a thermoplastic resin, and furthermore, the old general formula (+
) By blending the saturated aliphatic carboxylic acid compound shown in ), it is possible to create a high specific gravity thermoplastic resin composition with good fluidity during melting and excellent moldability even when the thermoplastic resin is highly filled with metal powder. The present invention was completed after discovering that the present invention can be obtained.
以下、本発明を詳細に説明する。The present invention will be explained in detail below.
本発明に使用する勢可塑性樹脂としては、一般に射出成
形加工に供せられているものであれば特に制限はなく、
例えば、ボリアミド．ポリエステル，ボリカーポネート
，ポリエーテルサルフメンポリオレフィン，ポリフェニ
レンオキサイド．ポリフェニレンサルファイド．ポリエ
ーテルエーテルケトン．ＡＳ樹脂．ΔＮ樹脂．ＡＢＳ樹
脂等を挙げることができる。これらの中で特に好ましい
ものとして、ポリアミド，ポリエステル，ポリフエニレ
ンサルファイドが挙げられる。The plastic resin used in the present invention is not particularly limited as long as it is commonly used for injection molding.
For example, boryamide. Polyester, polycarbonate, polyether sulfene polyolefin, polyphenylene oxide. Polyphenylene sulfide. Polyetheretherketone. AS resin. ΔN resin. Examples include ABS resin. Among these, particularly preferred are polyamide, polyester, and polyphenylene sulfide.
次に、本発明に使用するタングステン粉末としては、そ
の平均粒径が５０μｍ以下であることが望ましい。更に
、粒径ｌＯμｍ以下のものがタングスナン粉末全体の割
合で５０重量％以上、且つ、粒径２０μｍ以上のものが
３０重量％以上の粒径分布となっているタングステン粉
末が好適である。Next, it is desirable that the average particle size of the tungsten powder used in the present invention is 50 μm or less. Further, it is preferable to use a tungsten powder having a particle size distribution in which 50% by weight or more of the total tungsten powder has a particle size of 10 μm or less, and 30% by weight or more has a particle size of 20 μm or more.
、一のような粒径分布の場合に、特に溶融時の流動性が
良好となる。, 1, the fluidity during melting is particularly good.
また、タングステン粉末の配合量は、９０〜９８重量％
であることが肝要であり、特に９３〜９８１１％が好ま
しい。配合量が９０重量％未満の場合には、十分な高比
重性を得られず、また、９８重看％を超える場合には、
加熱溶融時の流動性が悪く、射出成形が困難となる。In addition, the blending amount of tungsten powder is 90 to 98% by weight.
It is important that 93 to 9811% is particularly preferable. If the amount is less than 90% by weight, a sufficiently high specific gravity cannot be obtained, and if it exceeds 98% by weight,
Poor fluidity during heating and melting makes injection molding difficult.
本発明では、上記一般式（Ｉ）で示される飽和脂肪族カ
ルボン酸化合物を配合することが肝要である。飽和脂肪
族カルボン酸化合物は、式中のｍが２０〜３２の飽和脂
肪族カルボン酸の金属塩またはユステルである．金属塩
としては、リチウムナトリウム．カリウム等おアルカリ
金属、マグネシウム．カルシウム等のアルカリ土類金属
から成るものが挙げられる。エステルとしては、エチレ
ングリコール、１．２−又は１．３−プロパンジオール
、１，３一又は１，４−ブタンジオール等のアルコール
でエステル化したもの等が挙げられる。また、飽和脂肪
族カルボン酸化合物は１種でも、２種以上組み合わされ
た混合物でもよ《、混合物としては、モンクンワノクス
が挙げられる。In the present invention, it is important to blend the saturated aliphatic carboxylic acid compound represented by the above general formula (I). The saturated aliphatic carboxylic acid compound is a metal salt or ustel of a saturated aliphatic carboxylic acid in which m is 20 to 32. Examples of metal salts include lithium sodium. Alkali metals such as potassium, magnesium. Examples include those made of alkaline earth metals such as calcium. Examples of esters include those esterified with alcohols such as ethylene glycol, 1,2- or 1,3-propanediol, and 1,3- or 1,4-butanediol. Further, the saturated aliphatic carboxylic acid compound may be one type or a mixture of two or more types. Examples of the mixture include Monkwanox.
飽和脂肪族カルボン酸化合物の配合看は０．０１〜０．
５重量％であり、好ましくは０，０３〜０．３重景％で
ある。配合量が０．０１重量％未満の場合には、流動性
が不十分となり、射出成形時にタングステン粉末間の摩
擦による局部発熱でガスが発生し、成形品外観が不良と
なるばかりでなく、物性低下も著しい。また、０．５重
量％を超える場合には、物性、詩に衝撃強度の低下が著
しい。The blending ratio of the saturated aliphatic carboxylic acid compound is 0.01 to 0.
It is 5% by weight, preferably 0.03 to 0.3% by weight. If the blending amount is less than 0.01% by weight, fluidity will be insufficient and gas will be generated due to local heat generation due to friction between tungsten powder during injection molding, which will not only deteriorate the appearance of the molded product but also deteriorate its physical properties. The decline is also significant. Moreover, when it exceeds 0.5% by weight, the physical properties and impact strength are significantly reduced.
熱可塑性樹脂へのタングステン粉末、及び飽和脂肪族カ
ルボン酸化合物の配合方法は、いくつか挙げられるが、
例えば、熱可塑性樹脂粉末、タングステン粉末、及び飽
和脂肪族カルポン酸化合物粉末をヘンシエルミキサー等
の高速回転翼を有する混練機で撹拌による摩擦溶融で造
粒する方法や、噴軸、或いは２軸混練機で溶融混練する
方法、また、この両汗を組み合わせる方法等が挙げられ
る。There are several methods for blending tungsten powder and saturated aliphatic carboxylic acid compounds into thermoplastic resins.
For example, a method of granulating thermoplastic resin powder, tungsten powder, and saturated aliphatic carboxylic acid compound powder by friction melting by stirring in a kneader with high-speed rotary blades such as a Henschel mixer, or a method of granulating thermoplastic resin powder, tungsten powder, and saturated aliphatic carboxylic acid compound powder by friction melting by stirring, Examples include a method of melting and kneading in a machine, and a method of combining these two types.
（発明の効果）
以−Ｆのように、本発明にか一る熱可塑性樹脂組成物は
、熱可塑性樹脂にタングステン粉末、更に上記一般代（
Ｉ）で示される飽和脂肪族カルボン酸化合物を配合して
なることにより、極めて高比車−ご、且つ、優れた成形
性を有する。また、物性；こもイ３れている。したがっ
て、高比重と寸法精度を必要とする電気部品や機械部品
用の成形材料として好適である。(Effects of the Invention) As shown in F-F below, the thermoplastic resin composition according to the present invention contains tungsten powder and the above-mentioned general compound (
By blending the saturated aliphatic carboxylic acid compound shown in I), it has an extremely high ratio and excellent moldability. In addition, the physical properties; Therefore, it is suitable as a molding material for electrical parts and mechanical parts that require high specific gravity and dimensional accuracy.
以下、実施例を挙げて本発明を具体的乙こ説明する。Hereinafter, the present invention will be specifically explained with reference to Examples.
向、実施例に示す物性の測定は以下の方法で行；ｉ一、
た。The physical properties shown in the examples were measured by the following methods;
Ta.
叫）曲げ強度： Ａ Ｓ Ｔ Ｍ Ｄ ７ ９ ０
（２）曲げ弾性率：ＡＳＴＭ Ｄ−７９０（３）衝撃
強度：ＡＳＴＭ Ｄ−２５６ （アイゾゾ，ト．ノ
ノチ付．１／４ インチ）（４）比 重： Ａ Ｓ
Ｔ Ｍ Ｄ ７ ９ ２（実施例１〜３、比較例１
〜４）
粉末状ナイロン６樹脂（鑵紡■製．ＭＣ１０ ２）、飽
和脂肪族カルボン酸部分けん化エステル（ヘキスト社製
．ヘキストワノクスＯＰ）、及び、平均粒径１２μｍで
、粒乃分布が粒径１ ０ ｌｔｍ以下が５５重量％、１
０ − ２ ０ ／ｔ ｍが１０重量％、そして２０
μｍ以北が３５重量％であるタングステン粉末を表−１
に示す割合で配合した。次いで、これを、ヘンンエルミ
キサーを用いて、高速撹拌下で 摩擦溶融した後、冷却
固化して再粉砕し、更に ３０ｍｍφ２軸混練機を用い
て、シリンダー温度２５０゜Ｃ〜２６０℃で溶融混練し
、成形用ペレノｌ一を得た。) Bending strength: A S T M D 7 9 0
(2) Flexural modulus: ASTM D-790 (3) Impact strength: ASTM D-256 (Izozo, with tip, 1/4 inch) (4) Specific gravity: A S
TMD 7 9 2 (Examples 1 to 3, Comparative Example 1
~4) Powdered nylon 6 resin (manufactured by Hanbo Co., Ltd., MC10 2), saturated aliphatic carboxylic acid partially saponified ester (manufactured by Hoechst Co., Ltd., Hoechstowanox OP), and an average particle size of 12 μm, with a particle size distribution of 1 0 ltm or less is 55% by weight, 1
0-20/t m is 10% by weight, and 20
Table 1 shows tungsten powder with 35% by weight north of μm.
They were blended in the proportions shown below. Next, this was friction-melted using a Hennel mixer under high-speed stirring, cooled, solidified, and re-pulverized, and further melt-kneaded using a 30 mmφ twin-screw kneader at a cylinder temperature of 250°C to 260°C. , a pellet for molding was obtained.
尚、比較例２の試料は、溶融流動性が悪くベレノｌ−化
することが出来なかった。Note that the sample of Comparative Example 2 had poor melt fluidity and could not be converted into belenol.
次いで、得られたペレノトを用いて、通常実施されてい
るナイロン６樹脂の成形条件で射出成形１−で試験片を
得た．
得られた試験片の物性評価結果を表−２に示す。Next, using the obtained pellets, test pieces were obtained by injection molding 1- under the commonly used molding conditions for nylon 6 resin. Table 2 shows the physical property evaluation results of the obtained test piece.
（以．．′゛ｉ白）
＼％ヌｋ、ソ
以上の結果より、実施例のナイロン樹脂組成物は、極め
て高比重で物性、及び成形品外観に優れていた。一方、
比較例のナイロン樹脂組成物は、流動性が悪かったり、
比重が低すぎたり、物性に問題があったりした。(Hereinafter...'゛i White) \%Nk, So From the above results, the nylon resin composition of the example had an extremely high specific gravity and was excellent in physical properties and molded product appearance. on the other hand,
The nylon resin composition of the comparative example had poor fluidity,
The specific gravity was too low or there were problems with physical properties.
Claims (1)
I ）で示される飽和脂肪族カルボン酸化合物よりなる組
成物であって、上記タングステン粉末を９０〜９８重量
％、飽和脂肪族カルボン酸化合物を０．０１〜０．５重
量％含有することを特徴とする熱可塑性樹脂組成物。 ＣＨ＿２（ＣＨ＿２）＿ｍＣＯＯ＿ｎＲ…（ I ）（式
中、ｍは２０〜３２の整数、ｎは１または２、Ｒはアル
カリ金属、アルカリ土類金属、あるいは脂肪族炭化水素
基を表わす。）[Claims] Thermoplastic resin, tungsten powder, and the following general formula (
A composition comprising a saturated aliphatic carboxylic acid compound represented by I), characterized in that it contains 90 to 98% by weight of the tungsten powder and 0.01 to 0.5% by weight of the saturated aliphatic carboxylic acid compound. A thermoplastic resin composition. CH_2(CH_2)_mCOO_nR...(I) (In the formula, m is an integer of 20 to 32, n is 1 or 2, and R represents an alkali metal, an alkaline earth metal, or an aliphatic hydrocarbon group.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010155A JP2607443B2 (en) | 1990-01-18 | 1990-01-18 | Thermoplastic resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010155A JP2607443B2 (en) | 1990-01-18 | 1990-01-18 | Thermoplastic resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03215563A true JPH03215563A (en) | 1991-09-20 |
| JP2607443B2 JP2607443B2 (en) | 1997-05-07 |
Family
ID=11742387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010155A Expired - Lifetime JP2607443B2 (en) | 1990-01-18 | 1990-01-18 | Thermoplastic resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2607443B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001016222A1 (en) * | 1999-08-27 | 2001-03-08 | General Electric Company | High specific gravity polyester blend |
| JP2003004892A (en) * | 2001-04-16 | 2003-01-08 | Kanebo Ltd | Radiation shielding container |
| WO2018083972A1 (en) * | 2016-11-04 | 2018-05-11 | 株式会社サンプラ | Method for producing metal-imitating resin molded member, metal-imitating resin molded member and use of metal-imitating resin molded member |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6191254A (en) * | 1984-10-12 | 1986-05-09 | Seiko Epson Corp | Wrist watch case |
| JPS61254661A (en) * | 1985-05-07 | 1986-11-12 | Seiko Epson Corp | Surface part composition for clock |
-
1990
- 1990-01-18 JP JP2010155A patent/JP2607443B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6191254A (en) * | 1984-10-12 | 1986-05-09 | Seiko Epson Corp | Wrist watch case |
| JPS61254661A (en) * | 1985-05-07 | 1986-11-12 | Seiko Epson Corp | Surface part composition for clock |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001016222A1 (en) * | 1999-08-27 | 2001-03-08 | General Electric Company | High specific gravity polyester blend |
| US6300399B1 (en) | 1999-08-27 | 2001-10-09 | General Electric Company | High specific gravity polyester blend |
| JP2003004892A (en) * | 2001-04-16 | 2003-01-08 | Kanebo Ltd | Radiation shielding container |
| WO2018083972A1 (en) * | 2016-11-04 | 2018-05-11 | 株式会社サンプラ | Method for producing metal-imitating resin molded member, metal-imitating resin molded member and use of metal-imitating resin molded member |
| JPWO2018083972A1 (en) * | 2016-11-04 | 2019-03-07 | 株式会社サンプラ | Method of manufacturing metal camouflaged resin molded member, metal camouflaged resin molded member, and method of using metal camouflaged resin molded member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2607443B2 (en) | 1997-05-07 |
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