JPS61106646A - Resin composition for engraving by cutting - Google Patents
Resin composition for engraving by cuttingInfo
- Publication number
- JPS61106646A JPS61106646A JP22823984A JP22823984A JPS61106646A JP S61106646 A JPS61106646 A JP S61106646A JP 22823984 A JP22823984 A JP 22823984A JP 22823984 A JP22823984 A JP 22823984A JP S61106646 A JPS61106646 A JP S61106646A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl acetate
- cutting
- ethylene
- weight
- resin composition
- 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
- 238000005520 cutting process Methods 0.000 title claims description 34
- 239000011342 resin composition Substances 0.000 title claims description 23
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 29
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 26
- 239000004698 Polyethylene Substances 0.000 claims description 25
- -1 polyethylene Polymers 0.000 claims description 23
- 229920000573 polyethylene Polymers 0.000 claims description 23
- 239000011256 inorganic filler Substances 0.000 claims description 15
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 14
- 239000012766 organic filler Substances 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 18
- 239000002245 particle Substances 0.000 abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 9
- 239000000945 filler Substances 0.000 abstract description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000005977 Ethylene Substances 0.000 abstract description 4
- 229920001577 copolymer Polymers 0.000 abstract description 4
- 235000010216 calcium carbonate Nutrition 0.000 abstract 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- IEKHISJGRIEHRE-UHFFFAOYSA-N 16-methylheptadecanoic acid;propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O IEKHISJGRIEHRE-UHFFFAOYSA-N 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000005995 Aluminium silicate Substances 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
- 241001590997 Moolgarda engeli Species 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- UMHKOAYRTRADAT-UHFFFAOYSA-N [hydroxy(octoxy)phosphoryl] octyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OP(O)(=O)OCCCCCCCC UMHKOAYRTRADAT-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- KNXNFEMPRRJNKP-UHFFFAOYSA-N dioctyl phosphono phosphate propan-2-ol titanium Chemical compound [Ti].CC(C)O.CCCCCCCCOP(=O)(OP(O)(O)=O)OCCCCCCCC.CCCCCCCCOP(=O)(OP(O)(O)=O)OCCCCCCCC.CCCCCCCCOP(=O)(OP(O)(O)=O)OCCCCCCCC KNXNFEMPRRJNKP-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000010434 nepheline Substances 0.000 description 1
- 229910052664 nepheline Inorganic materials 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は切削彫刻用樹脂組成物に関し、さらに詳しく
言うと、切削性、塗装性、接着性等に優れ、適度の重量
感があってたとえば玩具成形品に好適な切削彫刻用樹脂
組成物に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a resin composition for cutting and engraving, and more specifically, it has excellent cutting properties, paintability, adhesion properties, etc., has a moderate weight feeling, and has, for example, The present invention relates to a resin composition for cutting and engraving suitable for toy molded products.
［従来の技術およびその問題点］
近年、玩具商品、ホビー商品等がもてはやされているが
、それら商品の素材は、木材、ゴム、粘土、プラスチッ
ク等である。[Prior art and its problems] In recent years, toy products, hobby products, etc. have become popular, and the materials of these products are wood, rubber, clay, plastic, etc.
素材としての木材は切削性、塗装性、質感等が大変良好
であるが１元型（荒元型）の加工性、デザインの自由度
に難があるので、木製の前記商品は、切削形状の簡単な
ものが多い、また、ゴムは、その性質上ゴム弾性を有し
て切削加工に必要な硬度に欠けるので、ゴム製の元型を
切削して複雑な形状に仕上げることは困難である。粘土
は。Wood as a material has very good machinability, paintability, texture, etc., but it has difficulties in workability and design freedom in a single model (rough model), so the above wooden products are difficult to cut into shapes. Many of them are simple, and since rubber has rubber elasticity due to its nature and lacks the hardness necessary for cutting, it is difficult to cut a rubber prototype into a complex shape. The clay.
形状保持性、硬化に時間がかかる。プラスチックは、特
に切削性、塗装性、接着性に劣る。したがって前記いず
れの素材も一長一短があって、玩具商品、ホビー商品等
に最適の素材とは言えないものである。Shape retention and curing takes time. Plastics are particularly poor in cuttability, paintability, and adhesiveness. Therefore, each of the above-mentioned materials has advantages and disadvantages, and cannot be said to be the optimal material for toy products, hobby products, etc.
この発明は、前記問題点に基づき、切削性、塗装性、接
着性に優れると共に適度の重量感、質感を有する玩具商
品、ホビー商品等に好適な切削彫刻用樹脂組成物を提供
することを目的とするものである。The present invention is based on the above-mentioned problems, and aims to provide a resin composition for cutting and engraving that is suitable for toy products, hobby products, etc., and has excellent cutting properties, paintability, and adhesion properties, as well as appropriate weight and texture. That is.
［前記問題点を解決するための手段］
前記目的を達成するためのこの発明の概要は、エチレン
−酢酸ビニル共重合体１０〜６０重量部とポリエチレン
２０〜７０重量部と無機質充填剤および／または有機質
充填剤１０〜５０重が部とを含むことを特徴とする切削
彫刻用樹脂組成物である。[Means for Solving the Problems] The outline of the present invention for achieving the above objects is as follows: 10 to 60 parts by weight of ethylene-vinyl acetate copolymer, 20 to 70 parts by weight of polyethylene, an inorganic filler and/or A resin composition for cutting and engraving, characterized in that it contains 10 to 50 parts by weight of an organic filler.
この発明に使用するエチレン−酢酸ビニル共重合体は、
酢酸ビニルの含有量が５〜４０重量％、特に１０〜３０
重量％のものを使用するのが好ましい、前記酢酸ビニル
の含有量が５重量％よりも少ないと、ポリエチレンとエ
チレン−酢酸ビニルとを配合する効果が得られず、また
この含有量が’ｆ’＋ ４０ｆｆｉＪＬ９６ヨ、
ｌ’ｅｌイ、＝、 ｆ’Ｊ−ｒ−＋ｔｚｙＡ−ｃｏ。The ethylene-vinyl acetate copolymer used in this invention is
The content of vinyl acetate is 5 to 40% by weight, especially 10 to 30% by weight.
If the vinyl acetate content is less than 5% by weight, the effect of blending polyethylene and ethylene-vinyl acetate cannot be obtained; +40ffiJL96yo,
l'el i, =, f'J-r-+tzyA-co.
性が悪くなってポリエチレンとエチレン−酢酸ビニルと
の配合が困難になる。この場合、前記酢酸ビニルの含有
量はケン化方法により測定して得た値である。The properties deteriorate, making it difficult to blend polyethylene and ethylene-vinyl acetate. In this case, the vinyl acetate content is a value measured by a saponification method.
また、この発明においては、エチレン−酢酸ビニル共重
合体は、エチレンと酢酸ビニルとのテンダム共重合体で
あっても、ブロック共重合体であっても、また、共重合
体中の酢酸ビニルの部分ケン化物であっても良い、さら
に、この発明では、前記エチレン−酢酸ビニル共重合体
として。In addition, in this invention, the ethylene-vinyl acetate copolymer may be a tendon copolymer or a block copolymer of ethylene and vinyl acetate; In the present invention, the ethylene-vinyl acetate copolymer may be a partially saponified product.
ただ一種のエチレン−酢酸ビニル共重合体が配合される
のが好ましいが、異なった含有量で酢酸ビニルを有する
二種またはそれ以上のエチレン−酢酸ビニル共重合体や
、エチレンおよび酢酸ビニルと共重合可能な、少量たと
えば全重合物の約１０重量％までの第３の七ツマ−を含
有するものをも使用することができる。Preferably, only one ethylene-vinyl acetate copolymer is blended, but two or more ethylene-vinyl acetate copolymers with different contents of vinyl acetate or copolymers with ethylene and vinyl acetate may be used. Small amounts of the tertiary septamer may also be used, such as up to about 10% by weight of the total polymer.
この発明に使用するポリエチレンは、その密度が０．９
０〜０．９３であると共にメルトインデックスが４〜２
０、特に１０〜１５であるものが好ま ゛しい、
このようなポリエチレンとエチレン−酢酸ビニル共重合
体とを配合することにより、切削彫刻用樹脂組成物の良
好な切削性が実現されるからである。また、前記ポリエ
チレンは、分岐鎖を有するポリエチレン、直鎖状のポリ
エチレンのいずれであっても良い。The polyethylene used in this invention has a density of 0.9
0-0.93 and melt index 4-2
0, especially preferably 10 to 15.
This is because by blending such polyethylene and the ethylene-vinyl acetate copolymer, good machinability of the resin composition for cutting and engraving is realized. Further, the polyethylene may be either branched polyethylene or linear polyethylene.
この発明に使用する無機質充填剤は、慣用の無機物であ
れば良く、たとえば炭酸カルシウム、炭酸マグネシウム
、亜硫酸カルシウム、硫酸バリウム、水酸化アルミニウ
ム、水酸化マグネシウム、石膏、カオリンクレイ、ロウ
石クレイ、カスミ石、ケイ灰石、石英粉（フリント）、
長石粉、タルク、マイカ、ホワイトカーボン等を使用す
ることができ、これらのなかでも、炭酸カルシウム、タ
ルク、硫酸バリウム等が好ましい、さらにこの発明で言
う無機質充填剤には金属粉末をも含めることができ、こ
の金属粉末として、たとえば亜鉛末、アルミニウム粉、
銅粉等が挙げられ、特に亜鉛末が好ましい。The inorganic filler used in this invention may be any conventional inorganic material, such as calcium carbonate, magnesium carbonate, calcium sulfite, barium sulfate, aluminum hydroxide, magnesium hydroxide, gypsum, kaolin clay, waxite clay, and nepheline. , wollastonite, quartz powder (flint),
Feldspar powder, talc, mica, white carbon, etc. can be used, and among these, calcium carbonate, talc, barium sulfate, etc. are preferable.Furthermore, the inorganic filler referred to in this invention can also include metal powder. As this metal powder, for example, zinc powder, aluminum powder,
Examples include copper powder, and zinc powder is particularly preferred.
前記無機質充填剤は、その粒径が３〜３０ＪＬ、特に５
〜１，５鉢のものを使用するのが好ましい。The inorganic filler has a particle size of 3 to 30 JL, particularly 5 JL.
It is preferable to use one with ~1.5 pots.
前記粒径が３０ｐを越えると、樹脂組成物中での前記無
機質充填剤の分散が悪くなり成形品の表面が荒れる原因
となることがあり、前記粒径が３牌よりも小さくなると
、前記無機質充填剤がコアギュレートして配合に困難を
生ずると共にたとえ配合できたとしても成形品の機械的
強度が低下することがある。When the particle size exceeds 30p, the dispersion of the inorganic filler in the resin composition becomes poor, which may cause the surface of the molded product to become rough.When the particle size is smaller than 3p, the inorganic filler The filler coagulates, making blending difficult, and even if it can be blended, the mechanical strength of the molded product may decrease.
前記無機質充填剤は、その表面をたとえばチタネート系
カップリング剤で表面処理しておいても良い、前記チタ
ネート系カップリング剤としては、たとえば七ノアルコ
キシ有機チタネート、たとえばイソプロピル−トリイソ
ステアロイル−チタネート、イソプロピル−イソステア
リル−ジメタアクリル−チタネート、イソプロピル−イ
ンステアロイル−ジアリル−チタネート、インプロピル
−トリ（ジオクチル−パイロ−フォスフエイト）チタネ
ート、イソプロピル−トリ（ジオクチルフォスフエイト
）チタネート等が挙げられ、これらの中でも特にイソプ
ロピル−トリイソステアロイル−チタネートがポリエチ
レンおよびエチレン−酢酸ビニル共重合体に対する相溶
性の良いこと、無機物表面への分散性の良いこと等によ
り好ましい。The surface of the inorganic filler may be treated with, for example, a titanate-based coupling agent. Examples of the titanate-based coupling agent include heptanoalkoxy organic titanates, such as isopropyl-triisostearoyl-titanate, Examples include isopropyl-isostearyl-dimethacrylic-titanate, isopropyl-instearoyl-diallyl-titanate, inpropyl-tri(dioctyl-pyro-phosphate) titanate, isopropyl-tri(dioctyl-pyro-phosphate) titanate, and among these, particularly Isopropyl-triisostearoyl-titanate is preferred because of its good compatibility with polyethylene and ethylene-vinyl acetate copolymers, and its good dispersibility on the surface of inorganic substances.
この発明に使用する有機質充填剤としては、たとえばコ
ルク、木粉等が挙げられ、特に木粉が好ましい、使用す
る木粉としては、その径が６０〜３２５、特に８０〜２
００メツシユであるのが好ましい、前記木粉の径が３２
５メツシユよりも小さいと、成形品の表面の荒れの原因
となり、また６０メツシユよりも大きいと、前記無機質
充填剤の場合と同様に機械的強度の低下を生じることが
ある。Examples of the organic filler used in this invention include cork, wood flour, etc., and wood flour is particularly preferred.
The diameter of the wood powder is preferably 0.00 mesh.
If it is smaller than 5 meshes, the surface of the molded product may be roughened, and if it is larger than 60 meshes, the mechanical strength may decrease as in the case of the inorganic filler.
この発明では、前記無機質充填剤および有機質充填剤の
いずれか一方または両者を配合することができる。In this invention, either or both of the inorganic filler and organic filler can be blended.
この発明で重要なことは、前記エチレン−酢酸ビニル共
重合体を１０〜６０重量部、好ましくは２０〜５０重量
部で、前記ポリエチレンを７０〜゛□□） ２０
重量部、好ましくは６０〜１０重量部で、前：′１
記無機質充填剤および／または前記有機質充填剤を１０
〜５０重量部、好ましくは１５〜４０重量部で配合する
ことである。What is important in this invention is that the amount of the ethylene-vinyl acetate copolymer is 10 to 60 parts by weight, preferably 20 to 50 parts by weight, and the amount of the polyethylene is 70 to 20 parts by weight.
10 parts by weight, preferably 60 to 10 parts by weight of the inorganic filler and/or the organic filler
It is to be blended in an amount of ~50 parts by weight, preferably 15 to 40 parts by weight.
前記エチレン−酢酸ビニル共重合体の配合量が６０重緘
部を越え、あるいは前記ポリエチレンの配合量が２０重
量部よりも少なくなると、切削彫刻用樹脂組成物が軟質
となって質感が悪くなり、また前記エチレン−酢酸ビニ
ル共重合体の配合量が１０重量部よりも小さくなると共
に前記ポリエチレンの配合量が７０重量部よりも大きく
なると、切削彫刻用樹脂組成物の切削性、塗装性、接着
性が不良とな、前記無機質充填剤および／または前記有
機質充填剤の配合量が１０重量部よりも少なくなると、
切削彫刻用樹脂組成物が静電性を有して切削時の切り粉
の除去が困難となると共に塗料の乾きが遅くなり、また
前記充填剤の配合量が５０重量部よりも多くなると、切
削性、塗装性、接着性が悪くなる。′
この発明に係る切削彫刻用樹脂組成物は、前記エチレン
−酢酸ビニル共重合体、前記ポリエチレン、前記無機質
充填剤および／または有機質充填剤のほかに、老化防止
剤、加工助剤、安定剤、酸化防止剤、顔料、潤滑剤、抗
ブロツキング剤、難燃剤等の添加剤を適宜に配合するこ
とができる。If the amount of the ethylene-vinyl acetate copolymer exceeds 60 parts by weight, or if the amount of the polyethylene is less than 20 parts by weight, the resin composition for cutting and engraving becomes soft and has a poor texture. In addition, when the amount of the ethylene-vinyl acetate copolymer is less than 10 parts by weight and the amount of polyethylene is more than 70 parts by weight, the machinability, paintability, and adhesion of the resin composition for cutting and engraving are reduced. is poor and the amount of the inorganic filler and/or the organic filler is less than 10 parts by weight,
The resin composition for cutting and engraving has electrostatic properties, making it difficult to remove chips during cutting, and slowing down the drying of the paint. The paintability, paintability, and adhesion will deteriorate. ' The resin composition for cutting and engraving according to the present invention contains, in addition to the ethylene-vinyl acetate copolymer, the polyethylene, the inorganic filler and/or the organic filler, an anti-aging agent, a processing aid, a stabilizer, Additives such as antioxidants, pigments, lubricants, anti-blocking agents, and flame retardants can be added as appropriate.
この添加剤の配合量は、この発明に係る切削彫刻用樹脂
組成物の良好な性質を阻害しない範囲で適宜に決定する
ことができ、通常、前記エチレン−酢酸ビニル共重合体
、前記ポリエチレン、前記無機質、有機質充填剤の全量
に対して約０．００５〜３重量％程度で良い。The blending amount of this additive can be appropriately determined within a range that does not impede the good properties of the resin composition for cutting and engraving according to the present invention, and usually, the amount of the ethylene-vinyl acetate copolymer, the polyethylene, the The amount may be about 0.005 to 3% by weight based on the total amount of inorganic and organic fillers.
この切削彫刻用樹脂組成物は、前記各成分をたとえば混
練操作することによりペレット化し、得られるベレット
を原料にして成形加工することにより元型にされる。This resin composition for cutting and engraving is made into a master mold by pelletizing the above-mentioned components, for example, by kneading them, and molding the resulting pellets as a raw material.
前記混練操作には、たとえばオープンロール、へンバリ
ミキサー、単軸スクリュー押出し機、２軸スクリ、−押
出し機、コニーダ等を使用することができる。For the kneading operation, for example, an open roll, a machine mixer, a single-screw extruder, a twin-screw extruder, a co-kneader, etc. can be used.
また、前記成形加工は、圧縮成形、射出成形、金型成形
、押出し成形、等各種の成形法を採用することができる
。これら各種の成形方法の中でも射出成形法が好適であ
る。Moreover, various molding methods such as compression molding, injection molding, mold molding, extrusion molding, etc. can be employed for the molding process. Among these various molding methods, injection molding is preferred.
前記のようにレズ得られた元型は、さらに切削加工によ
り複雑な形状に切り出され、あるいは前記と同様にして
得られた他の元型と接着され、塗装されてたとえば玩具
商品、ホビー商品とされる。The master mold obtained as described above is further cut into a complicated shape by cutting, or is glued with other master molds obtained in the same manner as described above, and painted to produce, for example, toy products, hobby products, etc. be done.
［発明の効果］
この発明によると、エチレン−酢酸ビニル共重合体とポ
リエチレンと無機質充填剤および／または有機質充填剤
とを所定の割合で配合しているので、この切削彫刻用樹
脂組成物を使用して得た成形品の切削性、接着性、塗装
性が極めて良好なものとすることができる。したがって
、前記成形品を元型としてこれを、切削ないし彫刻する
ことにより複雑な形状の完成品に容易に切出すことがで
き、切削刃等が元型の表面で滑って削りにくいというよ
うなことがない、また接着性が良好なことからも、この
発明に係る切削彫刻用樹脂組成物の元型で種々の部品を
成形してこれらを接着することにより複雑な形状の完成
品を構成することができる。そして、塗装性が良好なこ
とから、前記完成品の表面を美麗に仕上ることができる
ばかりか、前記完成品、元型の改造、修理を容易に行な
うことができる。[Effects of the Invention] According to this invention, since the ethylene-vinyl acetate copolymer, polyethylene, and inorganic filler and/or organic filler are blended in a predetermined ratio, this resin composition for cutting and engraving can be used. The resulting molded product can have extremely good machinability, adhesiveness, and paintability. Therefore, by using the molded product as a master mold, it can be easily cut into a finished product with a complex shape by cutting or engraving it, and the cutting blade etc. can slip on the surface of the master mold and be difficult to cut. Moreover, since the resin composition for cutting and engraving according to the present invention has good adhesion, it is possible to construct a finished product with a complex shape by molding various parts with the master mold and gluing these together. I can do it. Since the paintability is good, not only can the surface of the finished product be beautifully finished, but also the finished product and the original model can be easily modified and repaired.
また、この切削彫刻用樹脂組成物は、帯電性が極めて小
さいので、切削加工時の切り屑が加工表面に付着する不
都合をなくすることができる。Moreover, since this resin composition for cutting and engraving has extremely low electrostatic chargeability, it is possible to eliminate the inconvenience of chips adhering to the processed surface during cutting.
さらに、この切削彫刻用樹脂組成物は、プラスチック特
有の質感を感じさせずに適度の重量感を有しており、玩
具商品、ホビー商品等の成形品に好適に使用することが
できる。Furthermore, this resin composition for cutting and engraving has a moderate weight feeling without giving a feel of texture peculiar to plastics, and can be suitably used for molded products such as toys and hobby products.
［実施例］
次にこの発明の実施例および比較例を示してこの発明を
さらに具体的に説明する。[Examples] Next, the present invention will be explained in more detail by showing examples and comparative examples of the present invention.
（実施例１〜８、比較例１〜４）
第１表に示す配合量のエチレン−酢酸ビニル共重合体と
第１表に示す配合量のポリエチレンと第１表に示す配合
量の炭酸カルシウムとを配合し、１′
１：１ パンパリ−ミキサーで加熱温度１
２０−１３０℃で１５分間混練してからペレタイズした
。これによって得たペレットを用いて射出成形機により
加熱温度２００℃でテスト片を作成し以下に示す評価を
した。また、前記ペレットを用いて前記テスト片の作成
と同様にして径３０層騰、長さＩＱＯｍｍの棒状成形品
を作成して以下のようにして接着強さの評価をした。評
価結果を第１表に示す。(Examples 1 to 8, Comparative Examples 1 to 4) Ethylene-vinyl acetate copolymer in the amount shown in Table 1, polyethylene in the amount shown in Table 1, and calcium carbonate in the amount shown in Table 1. Mix and heat to 1' with a 1:1 Panpari mixer at a temperature of 1.
The mixture was kneaded at 20-130°C for 15 minutes and then pelletized. Using the pellets thus obtained, test pieces were prepared using an injection molding machine at a heating temperature of 200°C and evaluated as shown below. In addition, a rod-shaped molded product with a diameter of 30 layers and a length of IQO mm was created using the pellets in the same manner as in the preparation of the test piece, and the adhesive strength was evaluated as follows. The evaluation results are shown in Table 1.
使用した原料の諸元は次の通りである。The specifications of the raw materials used are as follows.
１、ＥＶＡ
エチレン−酢酸ビニル共重合体
三井ポリケミカル社製、商品名「エバフレックス５５０
゜
酢酸ビニル含有量；１４重量％
２、ＰＥ
ポリエチレン
東洋曹達社製、商品名「ペトロセン３４２」、
密度；０．９１７、
メルトインデックス二８
３、炭カル（Ａ）
炭酸カルシウム
金平鉱業社製、粒径５ＩＬ、重質炭酸カルシウム、
各評価法は以下の通りである。1. EVA ethylene-vinyl acetate copolymer manufactured by Mitsui Polychemical Co., Ltd., product name "Evaflex 550"
゜Vinyl acetate content: 14% by weight 2, PE Polyethylene Manufactured by Toyo Soda Co., Ltd., trade name "Petrocene 342", Density: 0.917, Melt index 28 3, Calcium carbonate (A) Calcium carbonate, manufactured by Kinpei Mining Co., Ltd., grains Diameter 5IL, heavy calcium carbonate, each evaluation method is as follows.
１、比重 水中置換法による。単位；ｇ／ｃｍ’ ２、衝撃強度 ＡＳＴＭ Ｄ２５６に準拠した。1. Specific gravity By underwater displacement method. Unit: g/cm' 2. Impact strength Compliant with ASTM D256.
単位；Ｋｇ＠ｃ層／ａｍ ３、切削性 通常のカッターでテスト片を軽く切削して評価した。Unit: Kg@c layer/am 3. Machinability The test piece was lightly cut with a regular cutter and evaluated.
４、塗装性
プラモデル用カラー塗料を刷子で塗布した後、常温で６
時間乾燥し、その後、セロファンテープを塗装面に接着
し、このセロファンテープを剥離したときの塗装の剥離
の有無を確認した。4. After applying the paintable plastic model color paint with a brush, 6 at room temperature.
After drying for a while, cellophane tape was adhered to the painted surface, and when the cellophane tape was peeled off, it was checked whether the paint peeled off or not.
５、静電性
通常のカッターでテスト片を切削後、生じた一切削粉の
除去のし易さを評価した。5. Electrostatic properties After cutting a test piece with an ordinary cutter, the ease with which any resulting cutting powder could be removed was evaluated.
６、接着強さ
２本の棒状成形品の端面どおしをエポキシ系接着剤で接
合し、ｖｉ合後後６時間経過てから、接合した棒状成形
品を高さｉｎから自然落下させてハガレ状態を観察した
。6. Adhesive Strength The end surfaces of two rod-shaped molded products were joined together using epoxy adhesive, and after 6 hours had passed after bonding, the joined rod-shaped molded products were allowed to fall naturally from a height of 1.5 inches to prevent peeling. I observed the condition.
７、質感 目視により評価した。7. Texture Evaluation was made visually.
（実施例９〜１３．１５．１６）
前記実施例１で使用したのと同じ種類のエチレン−酢酸
ビニル共重合体とポリエチレンと第２表に示す種類の充
填剤とを第２表に示す配合量で配合した外を前記実施例
１と同様にした。評価結果を第２表に示す。(Examples 9 to 13, 15, 16) The same type of ethylene-vinyl acetate copolymer used in Example 1 above, polyethylene, and the type of filler shown in Table 2 were combined as shown in Table 2. The amounts were the same as in Example 1 except that the amounts were blended. The evaluation results are shown in Table 2.
使用した充填剤の諸元は次の通りである。The specifications of the filler used are as follows.
１、炭カル（Ｂ）
炭酸カルシウム
金平鉱業社製、粒径１０ＪＬ、重質炭酸カルシウム、
２、タルク
浅田製粉社製、粒径１０島、
３、木粉
粒径１０Ｏメツシュ
４、硫酸バリウム
バライト工業社製、粒径５涛
５、亜鉛末
堺化学社製、粒径３ル
（実施例１４）
前記実施例で用いたポリエチレンの代りに直鎖状ポリエ
チレンを使用した外は前記実施例４と同様にして実施し
た。評価結果を第２表に示す。1. Charcoal Calcium (B) Calcium carbonate manufactured by Kinpei Mining Co., Ltd., particle size 10JL, heavy calcium carbonate. 2. Manufactured by Talc Asada Seifun Co., Ltd., particle size 10. 3. Wood powder particle size 10O mesh. 4. Barium sulfate barite industry. Manufactured by Sakai Chemical Co., Ltd., particle size: 5.5 mm Zinc powder, manufactured by Sakai Chemical Co., Ltd., particle size: 3 l (Example 14) Same as Example 4 except that linear polyethylene was used instead of the polyethylene used in the above example. It was carried out as follows. The evaluation results are shown in Table 2.
使用したポリエチレンは、三井石油化学社製のウルトゼ
ックス２０２００Ｊであり、その密度は０．９２０、メ
ルトインデックスは１８である。The polyethylene used was Urtzex 20200J manufactured by Mitsui Petrochemicals, Ltd., and its density was 0.920 and the melt index was 18.
前記第１表に示すように、エチレン−酢酸ビニル共重合
体の含有量が２０〜６０重量部、ポリエチレンの含有量
が６０〜２０重量部であるこの切１′ 削彫刻用
樹脂組成物は１重過ざもせず経過ぎもせ・［ｊ
ず適度の比重を有し、衝撃強度が大きく、切削性、塗装
性、接着性、静電性、−質感いずれも優れている。また
、エチレン−酢酸ビニル共重合体の含有量が１０重量部
程度になると、この切削彫刻用樹脂ｍ酸物は、衝撃強度
、切削性、塗装性、接着性 、静電性が若干低下するが
、玩具成形品。As shown in Table 1 above, this resin composition for cutting engraving contains 20 to 60 parts by weight of ethylene-vinyl acetate copolymer and 60 to 20 parts by weight of polyethylene. It does not get too heavy and does not wear out over time.It has a moderate specific gravity, high impact strength, and excellent cutting properties, paintability, adhesion, electrostatic properties, and texture. Furthermore, when the content of the ethylene-vinyl acetate copolymer is about 10 parts by weight, the impact strength, machinability, paintability, adhesion, and electrostatic properties of this cutting and engraving resin m-acid are slightly reduced. , toy molded products.
ホビー商品として実用上無視し得る程度である。As a hobby product, it can be ignored in practical terms.
さらに、充填剤が１０〜５０重量部の配合量のとき、適
度の比重、大きな衝撃強度を有し、良好な切削性、塗装
性、静電性、接着性、質感を有する切削彫刻用樹脂組成
物が得られることが分かる。Furthermore, when the filler is blended in an amount of 10 to 50 parts by weight, the resin composition for cutting and engraving has appropriate specific gravity, high impact strength, and good machinability, paintability, electrostatic property, adhesiveness, and texture. I know that I can get something.
第２表からは、有機質、無機質、金属質の充填剤の配合
もこの発明に効果があることが分かる。From Table 2, it can be seen that the combination of organic, inorganic, and metallic fillers is also effective in this invention.
（以下、余白）
手続補正書
昭和５９年１１月２６日
１ 事件の表示
昭和５９年特許願第２２８２３９号
２ 発明の名称
切削彫刻用樹脂組成物
３ 補正をする者
事件との関係 特許出願人
住所 東京都千代田区神田和泉町１番地２７７名称
カルプ工業株式会社
代表者 大和 丈夫
４ 代理人
住所 東京都新宿区西新宿６丁目３番２号唐川ビル
２階
５ 補正命令の日付
補正命令はない（自発）
６ 補正により増加する発明の数 ０７ 補正
の対象
「発明の詳細な説明」の欄
８ 補正の内容
（１） 明細書の第３ページの第１５行に記載の「
エチレン−酢酸ビニル」を「エチレン−酢斂ビニル共重
合体」に補正する。(Hereinafter, blank spaces) Procedural amendment dated November 26, 1980 1 Indication of the case Patent application No. 228239 of 1982 2 Name of the invention Resin composition for cutting engraving 3 Person making the amendment Relationship to the case Patent applicant address 277 Kanda Izumi-cho, Chiyoda-ku, Tokyo Name Calp Industries Co., Ltd. Representative Takeshi Yamato 4 Agent address 2nd floor 5, Karakawa Building, 6-3-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Date of amendment order No amendment order (voluntary) ) 6 Number of inventions increased by amendment 07 Subject of amendment "Detailed description of invention" column 8 Contents of amendment (1) "
"Ethylene-vinyl acetate" is corrected to "ethylene-vinyl acetate copolymer".
（２） 明細書の第３ページの第１８〜１９行に記
載の「エチレン−酢酸ビニル」を「エチレン−酢酸ビニ
ル共重合体」に補正する。(2) "Ethylene-vinyl acetate" written in lines 18-19 on page 3 of the specification is corrected to "ethylene-vinyl acetate copolymer."
（３） 明細書の第８ページの第９行に記載の「不
良とな、」を「不良となる。」に補正する。(3) "Defected" written in line 9 of page 8 of the specification shall be amended to "Defected."
（４） 明細書の第１Ｏページの第２０行に記載の
「仕上る」の記載を「仕上げる」に補正する。(4) The description of "finish" in line 20 of page 1 O of the specification is amended to "finish".
（５） 明細書の第１２ページの第８〜９行に記載
の「エバフレックス５５０、」を「エバフレックス５５
０Ｊ、Ｊに補正する。(5) "Evaflex 550," described in lines 8 to 9 on page 12 of the specification, is replaced by "Evaflex 55."
Correct to 0J, J.
（６） 明細書の第１４ページの第１１行に記載の
「外を」を「外は」に補正する。(6) "Toto wo" written in line 11 on page 14 of the specification is amended to "toi wa".
以上that's all
Claims (3)
とポリエチレン２０〜７０重量部と無機質充填剤および
／または有機質充填剤１０〜５０重量部とを含むことを
特徴とする切削彫刻用樹脂組成物。(1) A resin composition for cutting and engraving, characterized by containing 10 to 60 parts by weight of an ethylene-vinyl acetate copolymer, 20 to 70 parts by weight of polyethylene, and 10 to 50 parts by weight of an inorganic filler and/or an organic filler. thing.
の含有量が５〜４０重量％である特許請求の範囲第１項
に記載の切削彫刻用樹脂組成物。(2) The resin composition for cutting and engraving according to claim 1, wherein the ethylene-vinyl acetate copolymer has a vinyl acetate content of 5 to 40% by weight.
あると共にメルトインデックスが４〜２０である特許請
求の範囲第１項および第２項のいずれかに記載の切削彫
刻用樹脂組成物。(3) The resin composition for cutting and engraving according to any one of claims 1 and 2, wherein the polyethylene has a density of 0.90 to 0.93 and a melt index of 4 to 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22823984A JPS61106646A (en) | 1984-10-30 | 1984-10-30 | Resin composition for engraving by cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22823984A JPS61106646A (en) | 1984-10-30 | 1984-10-30 | Resin composition for engraving by cutting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61106646A true JPS61106646A (en) | 1986-05-24 |
| JPH0124814B2 JPH0124814B2 (en) | 1989-05-15 |
Family
ID=16873336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22823984A Granted JPS61106646A (en) | 1984-10-30 | 1984-10-30 | Resin composition for engraving by cutting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61106646A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62215643A (en) * | 1986-03-14 | 1987-09-22 | Mitsubishi Cable Ind Ltd | Flame-retardant resin composition |
| JP5412010B1 (en) * | 2012-09-13 | 2014-02-12 | 電気化学工業株式会社 | Rubber composition, vulcanized product and molded product thereof |
| WO2014041649A1 (en) * | 2012-09-13 | 2014-03-20 | 電気化学工業株式会社 | Rubber composition, and vulcanizate and molded article thereof |
| NL2019180B1 (en) * | 2017-07-05 | 2019-01-16 | Unga B V | Toy configuration and method for manufacturing a toy configuration |
| WO2022230294A1 (en) | 2021-04-27 | 2022-11-03 | デンカ株式会社 | Resin composition for molded article painted with water-based paint and molded article molded from same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5553679B2 (en) * | 2010-05-07 | 2014-07-16 | 株式会社デンタス | Dental technician working model |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319364A (en) * | 1976-08-09 | 1978-02-22 | Kazuo Shinkai | Plastic clay and method of manufacture |
| JPS58145745A (en) * | 1982-02-24 | 1983-08-30 | Showa Denko Kk | Production of polyolefin resin molding |
-
1984
- 1984-10-30 JP JP22823984A patent/JPS61106646A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319364A (en) * | 1976-08-09 | 1978-02-22 | Kazuo Shinkai | Plastic clay and method of manufacture |
| JPS58145745A (en) * | 1982-02-24 | 1983-08-30 | Showa Denko Kk | Production of polyolefin resin molding |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62215643A (en) * | 1986-03-14 | 1987-09-22 | Mitsubishi Cable Ind Ltd | Flame-retardant resin composition |
| JP5412010B1 (en) * | 2012-09-13 | 2014-02-12 | 電気化学工業株式会社 | Rubber composition, vulcanized product and molded product thereof |
| WO2014041649A1 (en) * | 2012-09-13 | 2014-03-20 | 電気化学工業株式会社 | Rubber composition, and vulcanizate and molded article thereof |
| WO2014041856A1 (en) * | 2012-09-13 | 2014-03-20 | 電気化学工業株式会社 | Rubber composition, and vulcanizate and molded article thereof |
| US9522993B2 (en) | 2012-09-13 | 2016-12-20 | Denka Company Limited | Rubber composition, and vulcanizate and molded article thereof |
| NL2019180B1 (en) * | 2017-07-05 | 2019-01-16 | Unga B V | Toy configuration and method for manufacturing a toy configuration |
| WO2022230294A1 (en) | 2021-04-27 | 2022-11-03 | デンカ株式会社 | Resin composition for molded article painted with water-based paint and molded article molded from same |
| KR20230175280A (en) | 2021-04-27 | 2023-12-29 | 덴카 주식회사 | Resin composition for molded products painted with water-based paint and molded products thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0124814B2 (en) | 1989-05-15 |
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