JPS63159451A - Expandable polystyrene resin composition and its production - Google Patents
Expandable polystyrene resin composition and its productionInfo
- Publication number
- JPS63159451A JPS63159451A JP30725686A JP30725686A JPS63159451A JP S63159451 A JPS63159451 A JP S63159451A JP 30725686 A JP30725686 A JP 30725686A JP 30725686 A JP30725686 A JP 30725686A JP S63159451 A JPS63159451 A JP S63159451A
- Authority
- JP
- Japan
- Prior art keywords
- polystyrene resin
- resin particles
- termiticide
- particles
- blowing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920006248 expandable polystyrene Polymers 0.000 title claims abstract description 18
- 239000011342 resin composition Substances 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000002245 particle Substances 0.000 claims abstract description 59
- 229920005989 resin Polymers 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 34
- 229920005990 polystyrene resin Polymers 0.000 claims abstract description 29
- 239000004604 Blowing Agent Substances 0.000 claims abstract description 14
- 241000256602 Isoptera Species 0.000 claims abstract description 14
- 239000003960 organic solvent Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- ATROHALUCMTWTB-OWBHPGMISA-N phoxim Chemical compound CCOP(=S)(OCC)O\N=C(\C#N)C1=CC=CC=C1 ATROHALUCMTWTB-OWBHPGMISA-N 0.000 claims abstract description 7
- 229950001664 phoxim Drugs 0.000 claims abstract description 7
- ZNOLGFHPUIJIMJ-UHFFFAOYSA-N fenitrothion Chemical compound COP(=S)(OC)OC1=CC=C([N+]([O-])=O)C(C)=C1 ZNOLGFHPUIJIMJ-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000002424 termiticide Substances 0.000 claims description 36
- 238000011282 treatment Methods 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical group 0.000 claims description 4
- SCKHCCSZFPSHGR-UHFFFAOYSA-N cyanophos Chemical compound COP(=S)(OC)OC1=CC=C(C#N)C=C1 SCKHCCSZFPSHGR-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 2
- 150000008282 halocarbons Chemical class 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- YASYVMFAVPKPKE-UHFFFAOYSA-N acephate Chemical compound COP(=O)(SC)NC(C)=O YASYVMFAVPKPKE-UHFFFAOYSA-N 0.000 claims 2
- FITIWKDOCAUBQD-UHFFFAOYSA-N prothiofos Chemical class CCCSP(=S)(OCC)OC1=CC=C(Cl)C=C1Cl FITIWKDOCAUBQD-UHFFFAOYSA-N 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 24
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract description 10
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001273 butane Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 238000005470 impregnation Methods 0.000 abstract description 4
- 239000012774 insulation material Substances 0.000 abstract description 3
- 230000002940 repellent Effects 0.000 abstract 4
- 239000005871 repellent Substances 0.000 abstract 4
- 230000001846 repelling effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000010097 foam moulding Methods 0.000 description 8
- 238000005187 foaming Methods 0.000 description 8
- 239000006260 foam Substances 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000004566 building material Substances 0.000 description 5
- 231100000419 toxicity Toxicity 0.000 description 5
- 230000001988 toxicity Effects 0.000 description 5
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- -1 n-pentane Chemical class 0.000 description 4
- 229920006327 polystyrene foam Polymers 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000007900 aqueous suspension Substances 0.000 description 3
- 239000004794 expanded polystyrene Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- XJFIKRXIJXAJGH-UHFFFAOYSA-N 5-chloro-1,3-dihydroimidazo[4,5-b]pyridin-2-one Chemical group ClC1=CC=C2NC(=O)NC2=N1 XJFIKRXIJXAJGH-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 239000005945 Chlorpyrifos-methyl Substances 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- 206010029350 Neurotoxicity Diseases 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000866500 Reticulitermes speratus Species 0.000 description 1
- 241000545593 Scolytinae Species 0.000 description 1
- 206010043275 Teratogenicity Diseases 0.000 description 1
- 206010044221 Toxic encephalopathy Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 231100000704 bioconcentration Toxicity 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011489 building insulation material Substances 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- AFYPFACVUDMOHA-UHFFFAOYSA-N chlorotrifluoromethane Chemical compound FC(F)(F)Cl AFYPFACVUDMOHA-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 1
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 1
- UMNKXPULIDJLSU-UHFFFAOYSA-N dichlorofluoromethane Chemical compound FC(Cl)Cl UMNKXPULIDJLSU-UHFFFAOYSA-N 0.000 description 1
- 229940099364 dichlorofluoromethane Drugs 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 210000000497 foam cell Anatomy 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000013518 molded foam Substances 0.000 description 1
- 230000007135 neurotoxicity Effects 0.000 description 1
- 231100000228 neurotoxicity Toxicity 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000004942 pyridazin-6-yl group Chemical group N1=NC=CC=C1* 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000211 teratogenicity Toxicity 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229940078499 tricalcium phosphate Drugs 0.000 description 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 1
- 235000019731 tricalcium phosphate Nutrition 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は白蟻、キクイムシ等の食害を受けない、断熱建
材、床下敷材等用のポリスチレン系樹脂発泡体製造用の
発泡性ポリスチレン系樹脂粒子組成物に関するものであ
る。Detailed Description of the Invention (a) Industrial Application Field The present invention is directed to a foamable polystyrene resin for producing polystyrene resin foam for insulation building materials, floor underlay materials, etc., which is not susceptible to damage from termites, bark beetles, etc. The present invention relates to particle compositions.
さらに詳しくは発泡性ポリスチレン系樹脂粒子を型内で
発泡成型せしめて得た天井、壁、床等の断熱材として用
いられる建材用成型体が木材等と隣接して使用される場
合の虫害、例えば白蟻が出会った対象物を噛むと言う加
害習性で生じる蟻道等を防止でき、特に熱帯又は亜熱帯
地でイエシロアリ、ヤマトシロアリが繁栄しやすい地方
での建材用のポリスチレン系発泡体製造用として有用な
発泡性ポリスチレン系樹脂組成物に関するものである。More specifically, molded materials for building materials used as insulation materials for ceilings, walls, floors, etc. obtained by foam-molding expandable polystyrene resin particles in a mold are used adjacent to wood, etc., resulting in insect damage, for example. It can prevent termites that occur due to the harmful habit of biting objects that termites come across, and is particularly useful for producing polystyrene foam for building materials in tropical or subtropical regions where house termites and Japanese termites tend to thrive. The present invention relates to a foamable polystyrene resin composition.
（ロ）従来の技術
発泡性ポリスチレン系樹脂粒子は例えばポリスチレン系
脂粒子にこれをわずかに膨潤せしめるに過ぎない易揮発
性の脂肪族炭化水素、例えばｎ−ペンタン等を水性懸濁
液中で含浸せしめるか、またはポリスチレン樹脂に対し
て溶解性を有するトルエン等の溶剤を少潟含有する水性
懸濁液中で常温時気状のブタン等の発泡剤と共に含浸せ
しめる方法により通常、製造される。(b) Conventional technology Expandable polystyrene resin particles are impregnated in an aqueous suspension with easily volatile aliphatic hydrocarbons such as n-pentane, which cause the polystyrene resin particles to swell only slightly. It is usually produced by a method of impregnating a polystyrene resin with a blowing agent such as butane, which is gaseous at room temperature, in an aqueous suspension containing a polystyrene resin and a solvent such as toluene that is soluble in the polystyrene resin.
このようにして得られる発泡ポリスチレン系樹脂粒子は
発泡ポリスチレン系樹脂成型体を製造するための原料と
して用いられる。発泡性を経済的及び工業的に得るには
発泡性ポリスチレン系樹脂粒子を予め予備発泡して、こ
の予備発泡粒子を小孔等が穿設された成型機の型枠内に
充填し前記小孔等を通して加圧水蒸気を入れ予備発泡粒
子の軟化点以上に加熱して各予備発泡粒子をそれぞれ融
着一体化せしめる方法が採られており、それによって型
枠通りの発泡成型体が得られている。そして、発泡性ポ
リスチレン系樹脂粒子には上記予備発泡時の塊状化防止
、成型時の融着促進等の目的で種々薬剤を表面被覆する
ことは知られているが、最終成型体への機能付与の目的
で処理することは帯電防止処理を除き少なく、ことに防
蟻処理等を施こすことは全く行なわれていない。The expanded polystyrene resin particles thus obtained are used as a raw material for manufacturing expanded polystyrene resin molded bodies. In order to obtain foamability economically and industrially, expandable polystyrene resin particles are pre-foamed in advance, and the pre-expanded particles are filled into a formwork of a molding machine having small holes etc. A method has been adopted in which pressurized steam is introduced through the foam and heated above the softening point of the pre-expanded particles to fuse and integrate each pre-expanded particle, thereby obtaining a foam molded product that conforms to the mold. It is known that the surface of expandable polystyrene resin particles is coated with various chemicals for the purpose of preventing agglomeration during pre-foaming, promoting fusion during molding, etc.; There are few treatments for this purpose, other than antistatic treatment, and in particular, no anti-termite treatment is performed.
（ハ）発明が解決しようとする問題点
前記した発泡ポリスチレン系樹脂粒子を用いて発泡成形
された成形体は、種々の建材、断熱材として用いられて
いるが、ことに天井、壁、床等の断熱材のごとく木材と
隣接して使用される成形体においては、シロアリの加害
習性によりいわゆる蟻道が生じて断熱性等の材料特性を
劣化させるという問題点があった。(c) Problems to be Solved by the Invention Molded articles formed by foaming using the above-mentioned expanded polystyrene resin particles are used as various building materials and insulation materials, especially for ceilings, walls, floors, etc. Molded bodies used adjacent to wood, such as heat insulating materials, have a problem in that so-called termite tracks occur due to the harmful habit of termites, deteriorating the material properties such as heat insulation.
このため、これらの発泡成形体の表面に、防蟻剤を被覆
処理することが行なわれており、具体的には有機系の防
蟻剤溶液を成形体表面にハケ塗り等で塗布する手法が提
案されている。For this reason, the surfaces of these foamed molded bodies are coated with termiticides. Specifically, there is a method of applying an organic termiticide solution to the surface of the molded bodies by brushing, etc. Proposed.
しかしながら、かかる手法によれば、成形体の表面付近
に防蟻剤を含有させることはできるが、その内部迄充分
に浸透させることができず、かつ防蟻剤が表面付近から
離脱し易いことから、長期間に亘って防蟻効力を保持さ
せることが極めて困難であった。However, according to this method, although it is possible to contain the termiticide near the surface of the molded product, it is not possible to penetrate the inside of the molded product sufficiently, and the termiticide easily separates from the vicinity of the surface. However, it was extremely difficult to maintain the anti-termite effect for a long period of time.
また、上記方法においては防蟻剤溶液として通常有機溶
剤が用いられているため、塗布時にポリスチレン系樹脂
の表面が溶解して表層の発泡セル構造が崩壊され、品質
を低下させる欠点があった。Further, in the above method, since an organic solvent is usually used as the termiticide solution, the surface of the polystyrene resin is dissolved during application, and the foam cell structure of the surface layer is destroyed, resulting in a disadvantage of degrading the quality.
ざらに、かかる手法においては、実際上の作業が煩雑で
あり、作業衛生性の点においても問題があった。Generally speaking, in this method, the actual work is complicated and there are also problems in terms of work hygiene.
本発明はかかる状況に鑑みなされたものであり、ことに
、発泡成形後の煩雑な防蟻処理を行なうことなく、しか
も長期間の防蟻効力を発現しうる防蟻性成型体を効率良
く製造でき、工業性、経済性及び取扱い性に優れた発泡
性ポリスチレン系樹脂粒子を提供しようとするものであ
る。The present invention was made in view of the above circumstances, and in particular, it is an object to efficiently produce a termite-proof molded product that can exhibit long-term anti-termite effects without the need for complicated anti-termite treatments after foam molding. The object of the present invention is to provide expandable polystyrene-based resin particles that can be produced easily and are excellent in industrial efficiency, economic efficiency, and handleability.
（ニ）問題点を解決するための手段及び作用かくして本
発明によれば、ポリスチレン系樹脂粒子中に該樹脂粒子
の軟化点より低い沸点を有する易揮発性の発泡剤を含有
する発泡性ポリスチレン系樹脂粒子に、該樹脂粒子に対
し約０．０５〜２．０重量％の防蟻剤が被覆又は含浸さ
れてなることを特徴とする発泡性ポリスチレン系樹脂組
成物が提供される。さらにかかる発泡性ポリスチレン系
樹脂組成物の好適な製造方法が提供される。(d) Means and action for solving the problems Thus, according to the present invention, the foamable polystyrene resin particles contain an easily volatile blowing agent having a boiling point lower than the softening point of the resin particles. There is provided a foamable polystyrene resin composition characterized in that resin particles are coated or impregnated with a termiticide in an amount of about 0.05 to 2.0% by weight based on the resin particles. Furthermore, a suitable method for producing such a foamable polystyrene resin composition is provided.
本発明におけるポリスチレン系樹脂粒子とじてはスチレ
ンの単独重合体、又はメチルスチレンとの共重合体が適
している。As the polystyrene resin particles in the present invention, a styrene homopolymer or a copolymer with methylstyrene is suitable.
易揮発性の発泡剤としては、沸点が前記重合体の軟化点
以下であって、常圧でガス状もしくは液状の有機化合物
が適しており、プロパン、ブタン、ペンタン、ヘキサン
、シクロペンタン、シクロヘキサン等の炭化水素：メチ
レンクロリド、ジクロロフルオロメタン、クロロトリフ
ルオロメタン、トリクロロフルオロメタン等のハロゲン
化炭化水素等が適している。これらの発泡剤は、一種ま
たは二種以上を併用してもよい。通常これら発泡剤をオ
ートクレーブ内の水性懸濁液中で前記樹脂粒子に含浸す
ることにより発泡性ポリスチレン系樹脂粒子が得られる
。発泡剤は１−１０重量％含浸される。この時発泡助剤
としてトルエン、エチルベンゼン、シクロヘキサン等の
有機溶剤を１−２重量％併用してもよい。Suitable easily volatile blowing agents include organic compounds whose boiling point is below the softening point of the polymer and which are gaseous or liquid at normal pressure, such as propane, butane, pentane, hexane, cyclopentane, cyclohexane, etc. Hydrocarbons: Halogenated hydrocarbons such as methylene chloride, dichlorofluoromethane, chlorotrifluoromethane, trichlorofluoromethane, etc. are suitable. These blowing agents may be used alone or in combination of two or more. Generally, expandable polystyrene resin particles are obtained by impregnating the resin particles with these blowing agents in an aqueous suspension in an autoclave. The blowing agent is impregnated at 1-10% by weight. At this time, 1-2% by weight of an organic solvent such as toluene, ethylbenzene or cyclohexane may be used as a foaming aid.
本発明における防蟻剤としては、有機系防蟻剤が適して
おり、ことにこれらの中でもそれ自体の防蟻効果が優れ
、持続性があり、人畜に対しての毒性が低い、有機リン
系防蟻剤を用いるのが好ましいことが判明した。この有
機リン系防蟻剤の具体例としては、いわゆるホキシム（
０，Ｏ−ジエチル−〇−（α−シアノベンジリデンアミ
ノ）ホスホロチオエート〕、クロルビリホス〔０，０−
ジエチル−０−３，５，６−１−トリクロル−２−ピリ
ジルホスホロチオエート〕、とす゛ダフエンチオン〔０
，０−ジエチル−〇−（３−オキソ−２−フェニル−２
日−ビリダジン−６−イル）ホスホロチオエート〕、ク
ロルビリホスメチル〔０，０−ジメチル−０−３，５，
６−トリクロルー ２−ビリジルホスフォロチオエート
〕、フロチオフォス〔Ｏ−２，４−ジクロロフェニル０
−メチル−８−プロプルホスホロジチオエート〕、サイ
アノックス〔０，Ｏ−ジメチル−〇−４−シアノフェニ
ルホスホロチオエート〕等が挙げられる。As the termiticide in the present invention, organic termiticides are suitable, and among these, organic phosphorus type termiticides are particularly suitable, as they have an excellent termiticide effect, are long-lasting, and have low toxicity to humans and livestock. It has been found preferable to use termiticides. A specific example of this organophosphorus termiticide is the so-called phoxim (
0,O-diethyl-〇-(α-cyanobenzylideneamino)phosphorothioate], chlorbyrifos [0,0-
diethyl-0-3,5,6-1-trichloro-2-pyridylphosphorothioate], and daphenthione [0
,0-diethyl-〇-(3-oxo-2-phenyl-2
pyridazin-6-yl) phosphorothioate], chlorpyrifosmethyl [0,0-dimethyl-0-3,5,
6-trichloro-2-biridylphosphorothioate], furothiophos[O-2,4-dichlorophenyl0
-methyl-8-propylphosphorodithioate], Cyanox [0,O-dimethyl-〇-4-cyanophenylphosphorothioate], and the like.
本発明において防蟻剤は発泡性ポリスチレン系樹脂粒子
に対し約０．０５重量％〜２％重聞被覆もしくは含浸さ
れる。好ましくは０．３〜１．０重ω％である。その使
用量が０．０５重量％未満では防除効果が充分得られ難
く、２％重量％を越えると充分に過ぎ、また融着性も阻
害される倶れがあるので適さない。In the present invention, the termiticide is coated or impregnated with the expandable polystyrene resin particles in an amount of about 0.05% to 2% by weight. Preferably it is 0.3 to 1.0 weight ω%. If the amount used is less than 0.05% by weight, it will be difficult to obtain a sufficient pest control effect, and if it exceeds 2% by weight, it will be too much and the fusion property will also be inhibited, so it is not suitable.
本発明における防蟻剤を発泡性ポリスチレン系樹脂粒子
に被覆または含浸させる方法として、有機リン系等の防
蟻剤が芳香族炭化水素、アルコール、アセトン等の有機
溶剤に溶解する性質を応用するのが適している。即ち、
ポリスチレン樹脂と防蟻剤との両方に親和性の有機溶剤
を用い、これに防蟻剤を溶解した溶液を上記ポリスチレ
ン系樹脂粒子に接触させて行なうのが適している。この
被覆又は含浸は前記発泡剤の含有処理前、処理中、又は
処理後のいずれに行なってもよい。より具体的には、例
えばドラムブレンダー等でアセトン、エチルアルコール
混液に溶解した有機リン系防蟻剤を発泡性ポリスチレン
系樹脂粒子と混合させ、アセトン、エチルアルコールを
揮発させ樹脂表面に固着させることができる。また樹脂
粒子に発泡剤を含浸させる際に、発泡助剤として用いら
れるトルエン等に有機リン系防蟻剤を溶解させこれを含
浸系に添加し樹脂粒子内部あるいは粒子表層部に含浸さ
せてもよい。The method of coating or impregnating expandable polystyrene resin particles with the termiticide of the present invention utilizes the property of organic phosphorus termiticides to dissolve in organic solvents such as aromatic hydrocarbons, alcohol, and acetone. is suitable. That is,
It is suitable to use an organic solvent having an affinity for both the polystyrene resin and the termiticide, and to bring a solution of the termiticide dissolved therein into contact with the polystyrene resin particles. This coating or impregnation may be performed before, during, or after the foaming agent treatment. More specifically, for example, an organophosphorus termiticide dissolved in a mixture of acetone and ethyl alcohol is mixed with expandable polystyrene resin particles using a drum blender, etc., and the acetone and ethyl alcohol are volatilized and fixed to the resin surface. can. Furthermore, when impregnating resin particles with a foaming agent, an organic phosphorus termiticide may be dissolved in toluene or the like used as a foaming aid and added to the impregnation system to impregnate the inside of the resin particles or the surface layer of the particles. .
なお、通常のフレーク状や顆粒状の防蟻剤を直接発泡性
ポリスチレン系樹脂粒子と撹拌混合して表面被覆する方
法では樹脂粒子の予備発泡時、輸送時、充填時等に防蟻
剤が脱落し易く好ましくない。In addition, in the conventional method of coating the surface by stirring and mixing ordinary flake or granular termiticide directly with expandable polystyrene resin particles, the termiticide falls off during pre-foaming, transportation, filling, etc. of the resin particles. It is easy to do and not desirable.
この際の有機溶剤としては、ペンタン、石油エーテル、
ヘキサン、シクロヘキサン、トルエン、エチルベンゼン
、デカリン等の炭化水素類、塩化メチレン、パークロル
エチレン、フレオン１１゜フレオン１２．フレオン１１
３等の炭化水素類、セロソルブ、エチルエーテル、ジオ
キサン等のエーテル類、アセトン、メチルエチルケトン
等のケトン類、酢酸エチル等のエステル類が適している
。The organic solvent used in this case is pentane, petroleum ether,
Hydrocarbons such as hexane, cyclohexane, toluene, ethylbenzene, and decalin, methylene chloride, perchloroethylene, Freon 11° Freon 12. Freon 11
Hydrocarbons such as No. 3, ethers such as cellosolve, ethyl ether and dioxane, ketones such as acetone and methyl ethyl ketone, and esters such as ethyl acetate are suitable.
なおアルコール類は親和性が低いため単独では適さない
が、前記溶剤の樹脂への溶解性が強く樹脂粒子が合着し
易い際に希釈剤として併用することができる。Note that alcohols are not suitable alone because of their low affinity, but they can be used together as a diluent when the solvent has a strong solubility in the resin and resin particles tend to coalesce.
上記方法によれば防蟻剤を溶解している有機溶剤がポリ
スチレン系樹脂粒子をＩｆＩ潤もしくは融解し、防蟻剤
が内部に入り込む形となり、発泡成型体にした時、防蟻
剤が、樹脂粒子表層に固着状態になり、離脱するような
ことがない。そして、更に含浸の場合、防蟻剤は樹脂粒
子内部まで含浸し、発泡成型体にした場合、最も望まし
い含有状態となる。従って防蟻効果を長時間保持するこ
とが可能となる。そして発泡成形時の成形性も阻害され
ることがないことも確認されている。According to the above method, the organic solvent in which the termiticide is dissolved wets or melts the polystyrene resin particles, and the termiticide enters the inside of the particles. It becomes stuck to the surface layer of the particles and will not come off. Further, in the case of impregnation, the termiticide is impregnated into the inside of the resin particles, and when the resin particles are made into a foam molded product, the most desirable containing state is achieved. Therefore, it becomes possible to maintain the anti-termite effect for a long time. It has also been confirmed that the moldability during foam molding is not inhibited.
（ホ）実施例
実施例１
発泡剤としてｎ−ブタン、ｉ−ブタンの混合物５．５重
量％、発泡助剤としてトルエン１．５重量％を含有する
直径０．９− １．２ｍ１ｌｌの発泡性ポリスチレン樹
脂粒子に、ホキシムのトルエン溶液（有効固形分６５％
）を０．１重世％（有効成分０．０６５重昌％ン又は０
．５重量％（有効成分０．３３重置火）添加して均一に
樹脂粒子表面被覆するように容器内で撹き混ぜ、防蟻剤
処理の発泡性ポリスチレン樹脂粒子を得た。これを回転
撹拌式予備発泡装置でおよそ９０℃常圧飽和水蒸気に近
い状態で加熱しカサ容積が１７ｇ／Ωになるように５分
で発泡し予備発泡粒子を得た。予備発泡粒を大気中で６
時間放置乾燥した後、寸法４００ｘ ３００ｘ １００
１ｍｍの板状型枠内に充填し、０．７Ｋａｌｃｒｊの水
蒸気を用いて３５秒加熱し冷却後、型枠から、ホキシム
を含有したポリスチレン発泡成形体を得た。(E) Examples Example 1 Foamability of 0.9-1.2 ml in diameter containing 5.5% by weight of a mixture of n-butane and i-butane as a blowing agent and 1.5% by weight of toluene as a foaming aid. A toluene solution of phoxim (effective solid content 65%) was added to polystyrene resin particles.
) to 0.1% (active ingredient 0.065% or 0
．． 5% by weight (0.33 layers of active ingredient) was added and stirred in a container so as to uniformly coat the surface of the resin particles to obtain termiticide-treated expandable polystyrene resin particles. This was heated in a rotary agitation pre-foaming device at approximately 90° C. in a state close to normal pressure saturated steam and foamed in 5 minutes to a bulk volume of 17 g/Ω to obtain pre-foamed particles. Pre-expanded pellets in air
After leaving to dry for a while, dimensions 400x 300x 100
The mixture was filled into a 1 mm plate-shaped mold, heated for 35 seconds using water vapor of 0.7 Kalcrj, cooled, and then a polystyrene foam molded product containing phoxim was obtained from the mold.
ホキシム処理したポリスチレン発泡成型体の防蟻効力試
験の方法と結果は次の通りである。The method and results of the anti-termite efficacy test of the phoxim-treated polystyrene foam molding are as follows.
試験方法
１）接触試験
ポリスチレン発泡成型体上に直径４ｃｍ高さ４ｃｍのガ
ラス筒を置き、イエシロアリｍ１ｔｔ！ｉ１０頭を投入
し、イエシロアリの健康状況を調べる（繰り返し数える
）。Test method 1) Contact test A glass tube with a diameter of 4 cm and a height of 4 cm was placed on the polystyrene foam molding. Inject 10 termites and check the health status of the domestic termites (repeated counting).
２）食毒試験
底部に厚み約ｉｃｍの石膏を敷いた直径８ Ｃｍ１ｉさ
６ＣＩｌｌのアクリル樹脂製筒内に２５ｍｍｘ ２５ｍ
ｍｘ ５５ｍｍの供試ポリエチレン発泡成型体を置き、
イエシロアリ職蟻５０頭を投入してイエシロアリの健康
状態を調べると共にポリスチレン成型発泡体の重量減少
率を調べる。2) Food poison test A 25 mm x 25 m acrylic resin cylinder with a diameter of 8 cm and 6 cm with plaster of about icm thick placed on the bottom.
Place a test polyethylene foam molding of mx 55mm,
Fifty termite worker ants were introduced to examine the health condition of the termites, and the weight loss rate of the polystyrene molded foam was also examined.
（以下余白）
このように実施例では接触毒性で充分の効力をされてい
る。一方、実施例１−Ｂでは接触毒性並びに食毒性共に
優れた防蟻効力が発揮されている。(Left below) In this way, the examples demonstrate sufficient efficacy in terms of contact toxicity. On the other hand, Example 1-B exhibited excellent anti-termite effects in both contact toxicity and food toxicity.
実施例２
約５Ｑのオートクレーブ中に少石の第三リン酸カルシウ
ムとドデシルベンゼンスルホンを含む分散ｉｎ２ｕに、
直径０．＝９ − １．２ｍｍのポリスチレン樹脂粒子
２Ｋ（Ｊを入れ撹拌しながらトルエン２０Ｑに防蟻剤ク
ロルビリホス各々０．５， ２０， ４００を溶解して
添加しオートクレーブを密閉した。Example 2 Dispersion in2u containing pauci tricalcium phosphate and dodecylbenzene sulfone in an autoclave at about 5 Q.
Diameter 0. = 9 - 1.2 mm polystyrene resin particles 2K (J) were added, and while stirring, 0.5, 20, and 400 of the termiticide chlorbyrifos were dissolved in toluene 20Q and added, and the autoclave was sealed.
次いで発泡剤のブタンを１８０ｇ圧入して８０℃で６時
間含浸を行った後、冷却し、オートクレーブを開放し樹
脂粒子を取り出した。次いで水洗乾燥して、クロピリホ
スを含浸した発泡性ポリスチレン樹脂粒子を得た。Next, 180 g of butane as a blowing agent was injected and impregnated at 80° C. for 6 hours, then cooled, the autoclave was opened, and the resin particles were taken out. The particles were then washed with water and dried to obtain clopyrifos-impregnated expandable polystyrene resin particles.
これを回転撹拌式予備発＠機でおよそ９０℃の常圧飽和
水蒸気に近い状態で加熱しカサ容積が１７（１／ρにな
るように５分で発泡し、予備発泡粒子を得た。This was heated in a rotary stirring type pre-foaming machine at approximately 90° C. in a state close to normal pressure saturated steam and foamed in 5 minutes to a bulk volume of 17 (1/ρ) to obtain pre-foamed particles.
予備発泡粒子を大気中で６時間放置し乾燥した後寸法４
００ｘ ３００ｘ １００＋ｎｍの板状型枠内に充填し
０、７Ｋｇ／ｃｄの水蒸気を用いて３５秒加熱し、冷部
後、型枠より、クロルビルホスを含有した発泡成型体を
得た。After drying the pre-expanded particles by leaving them in the atmosphere for 6 hours, the size is 4.
The mixture was filled into a plate-like mold of 00x 300x 100+ nm and heated for 35 seconds using steam of 0.7 Kg/cd. After cooling, a foamed molded product containing chlorvylphos was obtained from the mold.
この発泡成型体の防蟻効力試験（接触毒性）の結果は次
の通りである。The results of the anti-termite efficacy test (contact toxicity) of this foam molding are as follows.
（以下余白）
このように実施例２−Ａ及び２−８いずれにおいても優
れた接触毒性が発現されていることが判る。(The following is a blank space.) Thus, it can be seen that both Examples 2-A and 2-8 exhibited excellent contact toxicity.
（へ）発明の効果
本発明の樹脂組成物を発泡成形して得られる発泡成形品
は、種々の建材として有用であり、ことに家屋等の断熱
材等の目的で木材と隣接又は近接して用いる場合にシロ
アリ等の加害習性（食害）が著しく抑イリ又は防止され
るものである。そしてこの際の発泡成形性も通常のポリ
スチレン系樹脂粒子と同等で防蟻剤の存在により粒子間
融着性等が阻害されることもない。(F) Effects of the Invention The foam molded products obtained by foam molding the resin composition of the present invention are useful as various building materials, and are especially suitable for use next to or in close proximity to wood for the purpose of insulation for houses, etc. When used, the harmful habits (feeding damage) of termites etc. are significantly suppressed or prevented. The foam moldability at this time is also the same as that of ordinary polystyrene resin particles, and interparticle fusion properties are not inhibited by the presence of the termiticide.
そして得られた発泡形成量は単に防蟻剤を塗工５Ｉ！１
理したものに比して、長ｒｆ＆ｌの防蟻効力、表面品質
、経済性、作業性等の種々の点で優れたものである。こ
とに有機リン系防蟻剤を用いた際くはその安全性（神経
毒性、催奇性、生物濃縮発ガン性等）の点でざらに実用
性に優れたものとなる。The amount of foam formed is determined by simply applying an anti-termite agent! 1
It is superior in various respects such as long-term RF&L termite-proofing effect, surface quality, economical efficiency, and workability. In particular, when organophosphorus termiticides are used, they are extremely practical in terms of safety (neurotoxicity, teratogenicity, bioconcentration carcinogenicity, etc.).
従って、本発明の樹脂組成物は、その工業的価値が著し
く高いものである。Therefore, the resin composition of the present invention has extremely high industrial value.
Claims (1)
り低い沸点を有する易揮発性の発泡剤を含有する発泡性
ポリスチレン系樹脂粒子に、該樹脂粒子に対し約０．０
５〜２．０重量％の防蟻剤が被覆又は含浸されてなるこ
とを特徴とする発泡性ポリスチレン系樹脂組成物。 ２、防蟻剤が、有機リン系防蟻剤である特許請求の範囲
第１項記載の組成物。 ３、有機リン系防蟻剤が、ホキシム、クロルビリホス、
フエニトロチオン、アセフエート、サイアノフオス及び
プロチオフオス系化合物の群から選ばれる１種又は２種
以上である特許請求の範囲第２項記載の組成物。 ４、ポリスチレン系樹脂粒子中に該樹脂粒子の軟化点よ
り低い沸点を有する易揮発性発泡剤を含有させて発泡性
ポリスチレン系樹脂粒子を得ることからなり、上記発泡
剤の含有処理前、処理中又は処理後に、ポリスチレン樹
脂及び防蟻剤に親和性の有機溶剤を用いた防蟻剤溶液を
上記ポリスチレン系樹脂粒子接触させて、該防蟻剤が０
．０５〜２０重量％被覆又は含浸された発泡性ポリスチ
レン系粒子を得ることを特徴とする発泡性ポリスチレン
系樹脂組成物の製造方法。 ５、防蟻剤が、有機リン系防蟻剤である特許請求の範囲
第４項記載の製造方法。 ６、有機リン系防蟻剤が、ホキシム、クロルビリホス、
フエニトロチオン、アセフエート、サイアノフオス及び
プロチオフオス系化合物の群から選ばれる１種又は２種
以上である特許請求の範囲第５項記載の製造方法。 ７、有機溶剤が、炭化水素類、ハロゲン化炭化水素類、
エステル類、エーテル類又はケトン類である特許請求の
範囲第４項記載の製造方法。[Scope of Claims] 1. Expandable polystyrene resin particles containing an easily volatile blowing agent having a boiling point lower than the softening point of the resin particles, about 0. 0
1. A foamable polystyrene resin composition coated with or impregnated with 5 to 2.0% by weight of a termiticide. 2. The composition according to claim 1, wherein the termiticide is an organophosphorus termiticide. 3. Organophosphorus termiticides include phoxim, chlorbyrifos,
The composition according to claim 2, which is one or more selected from the group of fenitrothion, acephate, cyanophos, and prothiophos compounds. 4. Obtaining expandable polystyrene resin particles by incorporating an easily volatile blowing agent having a boiling point lower than the softening point of the resin particles into the polystyrene resin particles, before and during the treatment for containing the blowing agent. Alternatively, after the treatment, the polystyrene resin particles are brought into contact with a termite solution containing an organic solvent that has an affinity for the polystyrene resin and the termite, so that the termiticide is 0.
．． A method for producing an expandable polystyrene resin composition, which comprises obtaining expandable polystyrene particles coated or impregnated with 05 to 20% by weight. 5. The manufacturing method according to claim 4, wherein the termiticide is an organophosphorus termiticide. 6. Organophosphorus termiticides include phoxim, chlorbyrifos,
6. The manufacturing method according to claim 5, wherein the compound is one or more selected from the group of fenitrothion, acephate, cyanophos, and prothiophos compounds. 7. The organic solvent is hydrocarbons, halogenated hydrocarbons,
The manufacturing method according to claim 4, which is an ester, an ether, or a ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30725686A JPS63159451A (en) | 1986-12-22 | 1986-12-22 | Expandable polystyrene resin composition and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30725686A JPS63159451A (en) | 1986-12-22 | 1986-12-22 | Expandable polystyrene resin composition and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63159451A true JPS63159451A (en) | 1988-07-02 |
Family
ID=17966914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30725686A Pending JPS63159451A (en) | 1986-12-22 | 1986-12-22 | Expandable polystyrene resin composition and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63159451A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0661083U (en) * | 1992-10-16 | 1994-08-30 | 株式会社三共消毒 | Termite poison bait block |
| EP0981955A2 (en) * | 1998-08-19 | 2000-03-01 | Nova Chemicals Inc. | Impregnating polymer beads with insecticide |
| JP2002294890A (en) * | 2001-04-02 | 2002-10-09 | Takeda Chem Ind Ltd | Underfloor heat insulating material |
| WO2012175628A1 (en) | 2011-06-21 | 2012-12-27 | Lanxess Deutschland Gmbh | Mixtures of polymers containing blowing agent, insecticides, and waxes |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6144934A (en) * | 1984-08-09 | 1986-03-04 | Otsuka Chem Co Ltd | Production of insect-repellent resin foam |
-
1986
- 1986-12-22 JP JP30725686A patent/JPS63159451A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6144934A (en) * | 1984-08-09 | 1986-03-04 | Otsuka Chem Co Ltd | Production of insect-repellent resin foam |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0661083U (en) * | 1992-10-16 | 1994-08-30 | 株式会社三共消毒 | Termite poison bait block |
| EP0981955A2 (en) * | 1998-08-19 | 2000-03-01 | Nova Chemicals Inc. | Impregnating polymer beads with insecticide |
| EP0981955A3 (en) * | 1998-08-19 | 2000-08-23 | Nova Chemicals Inc. | Impregnating polymer beads with insecticide |
| JP2002294890A (en) * | 2001-04-02 | 2002-10-09 | Takeda Chem Ind Ltd | Underfloor heat insulating material |
| WO2012175628A1 (en) | 2011-06-21 | 2012-12-27 | Lanxess Deutschland Gmbh | Mixtures of polymers containing blowing agent, insecticides, and waxes |
| US9222253B2 (en) | 2011-06-21 | 2015-12-29 | Lanxess Deutschland Gmbh | Mixtures of polymers containing blowing agent, insecticides, and waxes |
| EP2580961A1 (en) | 2011-10-11 | 2013-04-17 | LANXESS Deutschland GmbH | Mixtures of polymers, insecticides and waxes containing blowing agents |
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