JPH0768397B2 - Foamable vinyl chloride resin composition and method for producing foam having skin layer - Google Patents
Foamable vinyl chloride resin composition and method for producing foam having skin layerInfo
- Publication number
- JPH0768397B2 JPH0768397B2 JP62185287A JP18528787A JPH0768397B2 JP H0768397 B2 JPH0768397 B2 JP H0768397B2 JP 62185287 A JP62185287 A JP 62185287A JP 18528787 A JP18528787 A JP 18528787A JP H0768397 B2 JPH0768397 B2 JP H0768397B2
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- weight
- parts
- chloride 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.)
- Expired - Lifetime
Links
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 title claims description 26
- 239000006260 foam Substances 0.000 title claims description 13
- 239000011342 resin composition Substances 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000004088 foaming agent Substances 0.000 claims description 23
- 238000005187 foaming Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000003112 inhibitor Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- 238000000354 decomposition reaction Methods 0.000 claims description 7
- 239000004014 plasticizer Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 20
- 210000003491 skin Anatomy 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 239000000843 powder Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000004156 Azodicarbonamide Substances 0.000 description 4
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 4
- 235000019399 azodicarbonamide Nutrition 0.000 description 4
- 206010016322 Feeling abnormal Diseases 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- -1 for example Substances 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- ULUZGMIUTMRARO-UHFFFAOYSA-N (carbamoylamino)urea Chemical compound NC(=O)NNC(N)=O ULUZGMIUTMRARO-UHFFFAOYSA-N 0.000 description 1
- BKUSIKGSPSFQAC-RRKCRQDMSA-N 2'-deoxyinosine-5'-diphosphate Chemical compound O1[C@H](CO[P@@](O)(=O)OP(O)(O)=O)[C@@H](O)C[C@@H]1N1C(NC=NC2=O)=C2N=C1 BKUSIKGSPSFQAC-RRKCRQDMSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- LGBAGUMSAPUZPU-UHFFFAOYSA-N bis(9-methyldecyl) benzene-1,2-dicarboxylate Chemical compound CC(C)CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCCC(C)C LGBAGUMSAPUZPU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- KRGNPJFAKZHQPS-UHFFFAOYSA-N chloroethene;ethene Chemical group C=C.ClC=C KRGNPJFAKZHQPS-UHFFFAOYSA-N 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920005671 poly(vinyl chloride-propylene) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 description 1
- 125000005591 trimellitate group Chemical group 0.000 description 1
- 125000005590 trimellitic acid group Chemical class 0.000 description 1
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 1
- SMYKBXMWXCZOLU-UHFFFAOYSA-N tris-decyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCCCC)C(C(=O)OCCCCCCCCCC)=C1 SMYKBXMWXCZOLU-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は発泡性塩化ビニル系樹脂組成物およびその組成
物を用いるスキン層を有する発泡体の製法に関するもの
で、自動車用内装材、建築内装材、家具等に用いられる
軟質発泡表皮材に有用である。Description: TECHNICAL FIELD The present invention relates to a foamable vinyl chloride resin composition and a method for producing a foam having a skin layer using the composition. It is useful as a soft foam skin material used for wood and furniture.
＜従来の技術＞ 近年、自動車用や建築用の内装材あるいは家具等に軟質
発泡表皮材が注目をあびている。<Prior Art> In recent years, soft foam skin materials have attracted attention as interior materials for automobiles and constructions, furniture, and the like.
粉末塩化ビニル樹脂組成物に発泡剤を配合し、発泡成形
品を成形することは従来より知られているがこのような
方法は次のような問題点を有していた。すなわち （１） 発泡によって色が変化するため他の部材との色
合わせがむづかしい。It has been conventionally known that a foaming agent is mixed with a powdered vinyl chloride resin composition to form a foamed molded article, but such a method has the following problems. That is, (1) Since the color changes due to foaming, color matching with other members is difficult.
（２） したがって所望の色にするためには多量の顔料
を必要とし経済的に不利である。(2) Therefore, a large amount of pigment is required to obtain a desired color, which is economically disadvantageous.
（３） 発泡成形品のスキン（被膜）の強度が乏しく使
用可能な部材が限定される。(3) The strength of the skin (coating) of the foamed molded product is poor, and usable members are limited.
上記の発泡表皮材の問題点を解決するために多層化する
方法（特開昭61−100422号公報）表面に焼結スキン層を
形成させた後に発泡させる方法（特開昭61−127314号公
報）が知られている。しかしながら多層化品は工程の複
雑化に加え、ソフト感に乏しくプラスチック感が強い。
またスキン層を形成する方法は多層化法よりはソフト感
や感触において改良されてはいたが、本皮に比べて遜色
のない合成表皮を得るという最近の本物志向にとっては
必ずしも満足できるものではなかった。In order to solve the above problems of the foamed skin material, a method of forming a multilayer structure (JP-A-61-100422) and a method of forming a sintered skin layer on the surface and then foaming (JP-A-61-127314) )It has been known. However, in addition to the complicated process, the multi-layer product has a poor soft feel and a strong plastic feel.
Although the method of forming the skin layer has been improved in softness and feel compared with the multilayer method, it is not always satisfactory for the recent genuine intention to obtain a synthetic epidermis that is comparable to real skin. It was
＜発明が解決しようとする問題点＞ 本発明は前記の従来技術のもつ問題点を解決するもので
ある。すなわち本皮と同様の外観、ソフト感を有し、周
辺の他の部材との色合わせが容易でかつある程度の強さ
をもつ表層を有する発泡表皮材を簡単な工程で得る方法
を提案する。<Problems to be Solved by the Invention> The present invention solves the problems of the above-mentioned conventional techniques. In other words, we propose a method for obtaining a foamed skin material having a surface layer having the same appearance and softness as real leather, easy color matching with other peripheral members, and having a certain strength in a simple process.
＜問題点を解決するための手段＞ 本発明は、次のような構成から成るものである。<Means for Solving Problems> The present invention has the following configuration.
（１） 平均重合度300〜800の塩化ビニル系樹脂100重
量部に対し、可塑剤30〜120重量部、平均粒径５μｍ〜2
0μｍの発泡剤0.5〜10重量部、発泡抑制剤0.1〜５重量
部を含有することを特徴とする粉末状の発泡性塩化ビニ
ル系樹脂組成物。(1) 100 to 100 parts by weight of vinyl chloride resin having an average degree of polymerization of 300 to 800, plasticizer 30 to 120 parts by weight, average particle size 5 μm to 2
A powdery expandable vinyl chloride resin composition comprising 0.5 to 10 parts by weight of a 0 μm foaming agent and 0.1 to 5 parts by weight of a foaming inhibitor.
（２） 平均重合度300〜800の塩化ビニル系樹脂100重
量部に対し、可塑剤30〜120重量部、平均粒径５μｍ〜2
0μｍの発泡剤0.5〜10重量部、発泡抑制剤0.1〜５重量
部を含有することを特徴とする粉末状の発泡性塩化ビニ
ル系樹脂組成物を該組成物の溶融開始温度より高く、か
つ該組成物中における発泡剤の分解開始温度より低い温
度に加熱された金型表面に供給し、金型表面に付着溶融
させて該組成物の焼結層を形成させ、ついで該焼結層側
を発泡剤の分解可能な温度に加熱し、該焼結層を発泡さ
せ、冷却、離型することを特徴とするスキン層を有する
発泡体の製法。(2) Plasticizer 30-120 parts by weight, average particle size 5 μm-2 for 100 parts by weight of vinyl chloride resin having an average degree of polymerization of 300-800
A powdery expandable vinyl chloride resin composition containing 0.5 to 10 parts by weight of a foaming agent of 0 μm and 0.1 to 5 parts by weight of a foaming inhibitor is higher than the melting start temperature of the composition, and The composition is supplied to the mold surface heated to a temperature lower than the decomposition start temperature of the foaming agent in the composition, adhered and melted on the mold surface to form a sintered layer of the composition, and then the sintered layer side A method for producing a foam having a skin layer, which comprises heating the foaming agent to a temperature at which it can be decomposed, foaming the sintered layer, cooling, and releasing.
本発明は平均重合度300〜800、さらに好ましくは400〜7
00の低温溶融型の塩化ビニル系樹脂を用いることを第１
の特徴とする。平均重合度が300以下であれば可塑剤吸
収性が乏しく、軟質発泡体を得ることが困難となり、80
0以上では粉末組成物の溶融開始温度が高くなり所望の
発泡体を得ることが出来なくなる。但し少量であれば平
均重合度が800以上の塩化ビニル系樹脂を配合すること
ができる。該塩化ビニル系樹脂はとくに限定されないが
塩化ビニルの単独重合体樹脂の他、塩化ビニルを主成分
とする各種共重合体樹脂、例えば、塩化ビニル−エチレ
ン共重合体、塩化ビニル−酢酸ビニル共重合体、塩化ビ
ニル−プロピレン共重合体、塩化ビニル−アリルビニル
エーテル共重合体等あるいはこれらの混合物から成る樹
脂が例示される。The present invention has an average degree of polymerization of 300 to 800, more preferably 400 to 7
The first is to use a low temperature melting type vinyl chloride resin of 00
It is a feature of. If the average degree of polymerization is 300 or less, the plasticizer absorbability is poor, and it becomes difficult to obtain a soft foam.
When it is 0 or more, the melting start temperature of the powder composition becomes high, and a desired foam cannot be obtained. However, if the amount is small, a vinyl chloride resin having an average degree of polymerization of 800 or more can be blended. The vinyl chloride resin is not particularly limited, but in addition to a vinyl chloride homopolymer resin, various copolymer resins containing vinyl chloride as a main component, such as vinyl chloride-ethylene copolymer and vinyl chloride-vinyl acetate copolymer. Examples of the resin include a polymer, a vinyl chloride-propylene copolymer, a vinyl chloride-allyl vinyl ether copolymer, and the like, or a mixture thereof.
前記平均重合度300〜800の塩化ビニル樹脂100重量部に
対し、可塑剤30〜120重量部および発泡剤0.5〜10重量部
を加える。可塑剤は通常軟質塩化ビニル樹脂組成物に用
いられるものを本発明においても使用することができ
る。例示すれば、ジオクチルフタレート、ジイソデシル
フタレート、ジイソウンデシルフタレート、アルキル基
の炭素数が９〜11のジアルキルフタレートなどのフタル
酸エステル類、トリオクチルトリメリテート、トリデシ
ルトリメリテート、アルキル基の炭素数が７〜９或いは
７〜11のトリアルキルトリメリテートなどのトリメリッ
ト酸エステル類が使用される。30 to 120 parts by weight of a plasticizer and 0.5 to 10 parts by weight of a foaming agent are added to 100 parts by weight of a vinyl chloride resin having an average degree of polymerization of 300 to 800. As the plasticizer, those usually used in the soft vinyl chloride resin composition can be used in the present invention. For example, dioctyl phthalate, diisodecyl phthalate, diisoundecyl phthalate, phthalates such as dialkyl phthalate having an alkyl group having 9 to 11 carbon atoms, trioctyl trimellitate, tridecyl trimellitate, carbon of alkyl group. Trimellitic acid esters such as trialkyl trimellitate having a number of 7 to 9 or 7 to 11 are used.
本発明で用いられる発泡剤としては本発明の粉末組成物
の溶融開始温度より高く、分解温度より低い温度領域で
分解発泡するものであればよく、例えば、N,N′−ジニ
トロソペンタメチレンテトラミン、アゾジカルボンアミ
ド、ヒドラゾジカルボンアミドなどがあり、これらの発
泡剤の一種又は二種以上を組合せて使用することもでき
る。とくにアゾジカルボンアミドが好ましく使用され
る。又、平均粒径は５μ〜20μさらに好ましくは８μ〜
15μの発泡剤を使用する。５μの以下の発泡剤は発泡速
度が速く、スキン層が形成しにくく、20μ以上では、発
泡速度が遅すぎて、生産性が悪くなる。The foaming agent used in the present invention may be one that decomposes and foams in a temperature range higher than the melting start temperature of the powder composition of the present invention and lower than the decomposition temperature, and examples thereof include N, N′-dinitrosopentamethylenetetramine. , Azodicarbonamide, hydrazodicarbonamide, etc., and these foaming agents may be used alone or in combination of two or more. Especially, azodicarbonamide is preferably used. The average particle size is 5 to 20 μ, more preferably 8 to
Use 15μ blowing agent. A foaming agent having a particle size of 5 μm or less has a high foaming rate and is difficult to form a skin layer, and a foaming agent having a particle size of 20 μm or more has a too low foaming rate, resulting in poor productivity.
本発明においては発泡抑制剤を用いる。発泡抑制剤の添
加は初期の発泡剤の分解を抑制し、優れたスキン層の形
成のためにとくに重要である。In the present invention, a foaming inhibitor is used. The addition of the foaming inhibitor suppresses the decomposition of the foaming agent in the initial stage and is particularly important for forming an excellent skin layer.
発泡抑制剤としては、例えば、マレイン酸、フマル酸、
アジピン酸、フタル酸、トリメリット酸などの有機酸、
有機酸ハライド特に塩化物（塩化テレフタロイル）、有
機酸無水物、２個の官能基を含む多価芳香族アルコール
及びケトン（例えば3,3′,4,4′−ベンゾフェノン）、
６〜10員環アミン（例えばベンジルアミン）が用いられ
る。発泡抑制剤の添加量は塩化ビニル系樹脂100重量部
に対し0.1〜５重量部を用いることができる。As the foaming inhibitor, for example, maleic acid, fumaric acid,
Organic acids such as adipic acid, phthalic acid, trimellitic acid,
Organic acid halides, especially chlorides (terephthaloyl chloride), organic acid anhydrides, polyfunctional aromatic alcohols and ketones containing two functional groups (eg 3,3 ', 4,4'-benzophenone),
A 6-10 membered ring amine (eg, benzylamine) is used. The foaming inhibitor may be added in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the vinyl chloride resin.
0.1重量部以下であれば発泡剤の初期分解を抑制するの
に不十分であり、５重量部以上過剰に加えても添加効果
はあまりないため無駄である。If it is 0.1 part by weight or less, it is not sufficient to suppress the initial decomposition of the foaming agent, and even if 5 parts by weight or more is added in excess, the addition effect is not so great and it is wasteful.
本発明のスキン層を有する発泡体の製法としては、前記
粉末状発泡性塩化ビニル系樹脂組成物を該組成物の溶融
開始温度より高く、かつ該組成物中における発泡剤の分
解開始温度より低い温度に加熱された金型の表面に供給
する。かかる温度は樹脂および発泡剤の種類に応じて適
切に選ばれるが例えば約160〜200℃、より好ましくは約
170〜190℃の範囲に選ばれる。金型表面に供給された該
樹脂組成物は溶融し、その焼結層を形成する。焼結層の
形成が終了後、ついで該焼結層側を発泡剤の分解可能な
温度まで加熱し、該焼結層を発泡させる。発泡温度は使
用する発泡剤により最適条件が異なるが、例えば約190
℃以上、好ましくは約200℃以上にて選ばれる。金型の
加熱方法はとくに限定されないが例えばギャーオーブン
等の加熱炉が用いられ発泡に際しての加熱は遠赤外ラン
プを取付けた加熱炉等該焼結層を優先的に加熱する方式
（片面加熱）を用いる。As a method for producing a foam having a skin layer of the present invention, the powdery expandable vinyl chloride resin composition is higher than the melting start temperature of the composition and lower than the decomposition start temperature of the foaming agent in the composition. Supply to the surface of the mold heated to temperature. The temperature is appropriately selected depending on the type of resin and foaming agent, but is, for example, about 160 to 200 ° C, more preferably about 160 to 200 ° C.
It is selected in the range of 170-190 ℃. The resin composition supplied to the mold surface is melted to form a sintered layer thereof. After the formation of the sintered layer is completed, the side of the sintered layer is heated to a temperature at which the foaming agent can be decomposed to foam the sintered layer. Optimum conditions for foaming temperature differ depending on the foaming agent used, but for example, about 190
It is selected at a temperature of not less than 0 ° C, preferably about 200 ° C or more. The heating method of the mold is not particularly limited, but for example, a heating furnace such as a gear oven is used, and the heating at the time of foaming is a method such as a heating furnace equipped with a far infrared lamp, which preferentially heats the sintered layer (single-sided heating). To use.
ギャーオーブンなどの様に金型と焼結層両方を加熱する
方式（両面加熱）は金型面からの熱伝導により、表層部
分が発泡し、スキン層の形成が困難となる。In the method of heating both the mold and the sintered layer (double-sided heating) such as a gear oven, the surface layer is foamed due to heat conduction from the mold surface, making it difficult to form the skin layer.
発泡工程の際、金型面側は自然冷却又は、発泡剤分解温
度以下の温度で加熱が行なわれる。In the foaming step, the mold surface side is naturally cooled or heated at a temperature not higher than the decomposition temperature of the foaming agent.
発泡が終了した後に冷却・離型をして発泡成形体を得
る。冷却・離型は通常用いられる工程を採用することが
できる。After the foaming is completed, the product is cooled and released to obtain a foamed molded product. For cooling and releasing, the steps usually used can be adopted.
＜実施例＞ 次に実施例により本発明をより具体的に記すが、本発明
はこれらの実施例に限定されるものではない。<Examples> Next, the present invention will be described more specifically with reference to Examples, but the present invention is not limited to these Examples.
実施例１ 下記の塩化ビニル樹脂等各種成分をスーパーミキサーに
よりドライブレンドし、本発明の粉末塩化ビニル系樹脂
組成物を得た。Example 1 The following various components such as vinyl chloride resin were dry blended with a super mixer to obtain a powdery vinyl chloride resin composition of the present invention.
（配合） 塩化ビニル樹脂 90重量部 （スミリット Sx−4G:住友化学工業（株）製、平均重
合度420） 塩化ビニル樹脂 10重量部 （スミリット Px−QL:住友化学工業（株）製、平均重
合度1000） DIDP（ジイソデシルフタレート） 70重量部 バリウム系安定剤（Baステアレート） ３重量部 ADCA（アゾジカルボンアミド）（平均粒径15μｍ）４重
量部 マレイン酸 １重量部 顔 料 適 量 ニッケル製平板金型を280℃のギャーオーブン中で３分
間予備加熱を行なった。その時の金型温度は約180℃で
あった。この金型に直ちに上記粉末塩化ビニル系組成物
をふりかけ約10秒後過剰の粉末組成物を排出し、つづけ
て上側に遠赤外ランプを取付けた遠赤外加熱炉中に入れ
樹脂融着面の温度が約240℃になるように調整し、２分
間の再加熱（片面加熱）を行ない発泡を行なわせしめた
後冷却し、金型より脱型した。(Compound) 90 parts by weight of vinyl chloride resin (Smilit Sx-4G: Sumitomo Chemical Co., Ltd., average weight
Consistency 420) Vinyl chloride resin 10 parts by weight (Smilit Px-QL: Sumitomo Chemical Co., Ltd., average weight
Concentration 1000) DIDP (diisodecyl phthalate) 70 parts by weight Barium stabilizer (Ba stearate) 3 parts by weight ADCA (azodicarbonamide) (average particle size 15 μm) Quadruple
Amount Maleic acid 1 part Amount Appropriate amount A nickel plate mold is placed in a 280 ° C gear oven for 3 minutes.
Pre-heating was performed for a while. Mold temperature at that time is about 180 ℃
there were. Immediately add to this mold the above powdered vinyl chloride composition
After about 10 seconds, sprinkle the excess powder composition and continue.
The far-infrared heating furnace with the far-infrared lamp installed on the upper side.
Adjust the temperature of the resin fusion surface to approximately 240 ° C, and adjust for 2 minutes.
Reheating (single-sided heating) was performed for a while to cause foaming.
After cooling, the mold was removed from the mold.
成形品はスキン層と発泡層とを有しており、表面スキン
強度は実用に耐え得るものであり、色ずれもなく、また
発泡状態は良好でありソフト感のすぐれた製品であっ
た。これらの評価結果は表−１に記した。The molded product had a skin layer and a foamed layer, had a surface skin strength that could withstand practical use, had no color misregistration, and had a good foaming state and a soft feeling. The evaluation results are shown in Table-1.
なおスキン強度、色ズレ度及びソフト感の評価は次に記
す方法によった。The skin strength, the degree of color misregistration and the soft feeling were evaluated by the methods described below.
評価項目 スキン強度 新東科学（株）製ヘイドン14型で引掻強度試験を行な
い、無傷状態での最大荷重を測定した。Evaluation item Skin strength A scratch strength test was carried out with Haydon Model 14 manufactured by Shinto Kagaku Co., Ltd., and the maximum load in an intact state was measured.
○ 最大荷重200g以上 △ 〃 200〜100g × 〃 100g以下 色ズレ度 同一顔料配合で発泡剤を添加しない組成物で作成したシ
ートと比較し、目視判定を実施した。○ Maximum load of 200 g or more △ 〃 200 to 100 g × 〃 100 g or less Color misregistration A visual judgment was performed by comparing with a sheet made of a composition containing the same pigment but not adding a foaming agent.
○ ほとんど色ズレなし △ 若干の色ズレあり × 著しい色ズレあり ソフト感 高分子計器（株）製アスカーＣタイプ硬度計で成形品の
硬度を測定した。○ Almost no color shift △ Slight color shift × Marked color shift Soft feeling The hardness of the molded product was measured with an Asker C type hardness meter manufactured by Kobunshi Keiki Co., Ltd.
○ 硬度 70以下 △ 〃 70〜80 × 〃 80以上 実施例2,3、比較例１〜３ 塩化ビニル樹脂の平均重合度及び発泡剤の粒径、発泡抑
制剤の添加を変化させた以外は実施例１と同様にして発
泡成形品を得た。○ Hardness 70 or less △ 〃 70 to 80 × 〃 80 or more Examples 2 and 3, Comparative Examples 1 to 3 Performed except that the average degree of polymerization of the vinyl chloride resin, the particle size of the foaming agent, and the addition of the foaming inhibitor were changed. A foam molded article was obtained in the same manner as in Example 1.
実施例１と同様に発泡成形品の評価を行ない表−１に記
した。The foamed molded product was evaluated in the same manner as in Example 1 and is shown in Table 1.
比較例４ 実施例１で使用した金型を280℃のギャーオーブン中で
５分間予備加熱を行なった。その時の金型温度は210℃
であった。すぐに実施例１で使用の粉末組成物をふりか
け10秒後過剰の粉末組成物を排出し、実施例１使用の遠
赤外加熱炉に入れ、２分間再加熱を行ない、発泡せしめ
た後、冷却して金型より脱型した。 Comparative Example 4 The mold used in Example 1 was preheated in a Gar oven at 280 ° C. for 5 minutes. Mold temperature at that time is 210 ℃
Met. Immediately after sprinkling the powder composition used in Example 1 10 seconds later, the excess powder composition was discharged, placed in the far infrared heating furnace used in Example 1 and reheated for 2 minutes to cause foaming, It was cooled and released from the mold.
成形品の状態は表−２に示す。The condition of the molded product is shown in Table-2.
比較例５ 実施例１で使用した金型を280℃のギャーオーブン中で
３分間予備加熱を行なった。その時の金型温度は180℃
であった。すぐに実施例１で使用の粉末組成物をふりか
け10秒後過剰の粉末組成物を排出し、雰囲気240℃のギ
ャーオーブンに入れ、２分間の再加熱（両面加熱）を行
ない、発泡せしめた後、冷却して金型より脱型した。Comparative Example 5 The mold used in Example 1 was preheated in a 280 ° C. Gar oven for 3 minutes. Mold temperature at that time is 180 ℃
Met. Immediately after sprinkling the powder composition used in Example 1 10 seconds later, the excess powder composition was discharged, placed in a Gar oven at 240 ° C. atmosphere, and reheated (both sides heating) for 2 minutes to foam. Then, it was cooled and released from the mold.
成形品の状態は表−２に示す。The condition of the molded product is shown in Table-2.
Claims (2)
0重量部に対し、可塑剤30〜120重量部、平均粒径５μｍ
〜20μｍの発泡剤0.5〜10重量部、発泡抑制剤0.1〜５重
量部を含有することを特徴とする粉末状の発泡性塩化ビ
ニル系樹脂組成物。1. A vinyl chloride resin having an average degree of polymerization of 300 to 800.
30 to 120 parts by weight of plasticizer, average particle diameter 5 μm, relative to 0 parts by weight
A powdery expandable vinyl chloride resin composition comprising 0.5 to 10 parts by weight of a foaming agent of -20 μm and 0.1 to 5 parts by weight of a foaming inhibitor.
0重量部に対し、可塑剤30〜120重量部、平均粒径５μｍ
〜20μｍの発泡剤0.5〜10重量部、発泡抑制剤0.1〜５重
量部を含有することを特徴とする粉末状の発泡性塩化ビ
ニル系樹脂組成物を該組成物の溶融開始温度より高く、
かつ該組成物中における発泡剤の分解開始温度より低い
温度に加熱された金型表面に供給し、金型表面に付着溶
融させて該組成物の焼結層を形成させ、ついで該焼結層
側を発泡剤の分解可能な温度に加熱し、該焼結層を発泡
させ、冷却、離型することを特徴とするスキン層を有す
る発泡体の製法。2. A vinyl chloride resin having an average degree of polymerization of 300 to 800.
30 to 120 parts by weight of plasticizer, average particle diameter 5 μm, relative to 0 parts by weight
To 20 μm of a foaming agent 0.5 to 10 parts by weight and a foaming inhibitor 0.1 to 5 parts by weight, a powdery expandable vinyl chloride resin composition having a higher melting start temperature than the composition,
Further, the composition is supplied to the mold surface heated to a temperature lower than the decomposition start temperature of the foaming agent in the composition, adheres and melts on the mold surface to form a sintered layer of the composition, and then the sintered layer. A method for producing a foam having a skin layer, characterized in that the side is heated to a temperature at which the foaming agent can be decomposed, the sintered layer is foamed, cooled, and released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62185287A JPH0768397B2 (en) | 1987-07-23 | 1987-07-23 | Foamable vinyl chloride resin composition and method for producing foam having skin layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62185287A JPH0768397B2 (en) | 1987-07-23 | 1987-07-23 | Foamable vinyl chloride resin composition and method for producing foam having skin layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6429443A JPS6429443A (en) | 1989-01-31 |
| JPH0768397B2 true JPH0768397B2 (en) | 1995-07-26 |
Family
ID=16168206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62185287A Expired - Lifetime JPH0768397B2 (en) | 1987-07-23 | 1987-07-23 | Foamable vinyl chloride resin composition and method for producing foam having skin layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0768397B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ20041189A3 (en) * | 2004-12-07 | 2006-07-12 | Peguform Bohemia, K. S. | Method of making elastomer leather |
| JP2006272804A (en) * | 2005-03-30 | 2006-10-12 | Kaneka Corp | Chemically embossing vinylchloride resin sheet and chemically embossed vinylchloride resin product made by foaming the same |
| JP2009242622A (en) * | 2008-03-31 | 2009-10-22 | Sekisui Chem Co Ltd | Method for manufacturing sealing material |
-
1987
- 1987-07-23 JP JP62185287A patent/JPH0768397B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6429443A (en) | 1989-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2503753B2 (en) | Molding method of polypropylene resin molded body to which skin material lined with foaming layer is laminated | |
| US3608008A (en) | Method of forming a skinned polyurethane foam by overfilling a closed preheated mold | |
| JPH0768397B2 (en) | Foamable vinyl chloride resin composition and method for producing foam having skin layer | |
| US3432449A (en) | Foamable plastisol composition and method of foaming same | |
| CN107574678A (en) | A kind of environment-friendly type foam leather and preparation method | |
| US4401611A (en) | Embossing of foamable plastisols on dry blend layers | |
| EP0543501A1 (en) | Polyvinyl chloride resin composition for powder molding and production and use thereof | |
| JPH05125245A (en) | Vinyl chloride resin composition for powder molding and its production | |
| JP2970105B2 (en) | Composite foam molded article and method for producing the same | |
| JPS6124974B2 (en) | ||
| JPH09241460A (en) | Foamable vinyl chloride resin composition for powder molding | |
| JP2818219B2 (en) | Manufacturing method of granular material scattering wallpaper | |
| JP3003278B2 (en) | Composite foam molded article and method for producing the same | |
| JPS60101014A (en) | Manufacture of composite foamed and molded item | |
| JP2970106B2 (en) | Composite foam molded article and method for producing the same | |
| JPH0357148B2 (en) | ||
| JPH02646A (en) | Expandable vinyl chloride resin composition for powder molding and its production | |
| JP2001055462A (en) | Foamable vinyl chloride resin composition for powder molding | |
| JPH0120177B2 (en) | ||
| JPS61111337A (en) | Method for producing vinyl chloride resin composition for sintering and foaming | |
| JPS5863424A (en) | Manufacture of foaming decorative laminated sheet | |
| JPS6283127A (en) | Manufacture of expanded low-density ball | |
| JPS61132685A (en) | Production of skin sheet having porous surface layer | |
| JPH04345637A (en) | Expandable elastomer powder composition, expansion-molded product and its production | |
| JPH05105794A (en) | Vinyl chloride resin composition for powder molding and method for producing the same |