WO2006035820A1 - Process for producing reclaimed modified resin compound and reclaimed modified resin compound - Google Patents

Process for producing reclaimed modified resin compound and reclaimed modified resin compound Download PDF

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Publication number
WO2006035820A1
WO2006035820A1 PCT/JP2005/017861 JP2005017861W WO2006035820A1 WO 2006035820 A1 WO2006035820 A1 WO 2006035820A1 JP 2005017861 W JP2005017861 W JP 2005017861W WO 2006035820 A1 WO2006035820 A1 WO 2006035820A1
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WO
WIPO (PCT)
Prior art keywords
resin
regenerated
waste
producing
pvc
Prior art date
Application number
PCT/JP2005/017861
Other languages
French (fr)
Japanese (ja)
Inventor
Kichinosuke Amimoto
Takao Nishishita
Norihisa Nemoto
Original Assignee
Refinverse, Inc.
Nemoto, Tomiko
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Refinverse, Inc., Nemoto, Tomiko filed Critical Refinverse, Inc.
Priority to JP2006537775A priority Critical patent/JPWO2006035820A1/en
Publication of WO2006035820A1 publication Critical patent/WO2006035820A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/08—Making granules by agglomerating smaller particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B2017/0424—Specific disintegrating techniques; devices therefor
    • B29B2017/0468—Crushing, i.e. disintegrating into small particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the present invention relates to a waste-derived powder that has been pulverized to a maximum of 500 m or less, preferably 300 m or less, in the recycling of thermoplastic resin waste discharged as industrial waste.
  • thermoplastic resin waste discharged as industrial waste As a result of blending with other oil components and additives as well as improving the operability such as adhesion prevention of the powder product, it is involved in the modification of the granule of the product.
  • the present invention relates to a regenerated modified resin compound of a composite waste resin powder product that can be used for various purposes and a method for producing the same.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2003-088772
  • a composite thermoplastic resin powder derived from waste that has been previously pulverized to an average particle size of 500 ⁇ m or less is prepared using a known kneading apparatus or the like. For example, sufficiently stir and mix by rotating the stirring blades at a rotational speed of about 1000 to 2000 rpm. As a result, the composite thermoplastic powder is refined by stirring and mixing, and the resin is in a semi-molten state due to self-heating due to friction and the like, and an aggregate of granules, that is, fine particles (primary particles) is formed. Is done.
  • the formed granules have, for example, an average primary particle size force of ⁇ 50 ⁇ m and an average diameter of the whole granule of 10 to 500 ⁇ m.
  • an average primary particle size force of ⁇ 50 ⁇ m and an average diameter of the whole granule of 10 to 500 ⁇ m.
  • the composite thermoplastic resin waste is pulverized to a fine particle size of 500 m or less, more preferably 300 m or less.
  • One or a plurality of types of regenerated resin compound obtained in this manner are granulated by stirring and mixing until the regenerated resin compound is in a semi-molten state.
  • the composite thermoplastic resin waste is a mixed resin waste containing a thermoplastic resin and an additive such as a filler or a plasticizer, or a plurality of resin including a thermoplastic resin layer.
  • the laminate waste may be a laminate of a fiber finish layer and a resin layer, or a laminate having a structure in which a fiber core layer is sandwiched between resin layers.
  • the resin layer may contain additives such as fillers and fibers.
  • the filler include calcium carbonate
  • fibers include glass fibers
  • plasticizers include DOP.
  • the thermoplastic resin include vinyl chloride, a copolymer of vinyl chloride and vinyl acetate, a mixture of vinyl chloride and acrylic resin, and the like.
  • the semi-molten state is a state in which the temperature of the resin is higher than the softening temperature and lower than the melting point. For example, it is 100-140 ° C for PVC-based rosin.
  • the time for maintaining the semi-molten state is preferably about 1 to 10 minutes.
  • Examples of the composite thermoplastic resin waste include a vinyl chloride resin waste.
  • Examples of the PVC-based resin waste include those containing a PVC resin, a plasticizer, and a filler.
  • vinyl chloride-based resin waste the back side PVC backing layer of tile carpets, long PVC Floor sheet, PVC homogenia style, PVC wall surface grease layer, civil engineering water impermeable PVC sheet
  • One or more of improved dust prevention, improved uniformity of powder particle size, improved fluidity, and improved bulk density are provided.
  • Granules with particularly good fluidity can be obtained.
  • the regenerated modified resin compound contains 50% by weight or more of the regenerated resin compound, thereby contributing to the cyclic use of the oil-derived resin material that is a dry resource. Compared with production from virgin rosin alone, it has the effect of reducing CO emissions.
  • a method for producing a reclaimed resin paste sol according to the present invention is a method in which a regenerated modified resin composition produced by the above-described method is mixed with a resin paste sol.
  • the above-mentioned regenerated modified resin compound has a high affinity with the resin paste sol, and a regenerated resin paste sol with excellent dispersibility can be obtained.
  • the composite thermoplastic resin waste is PVC-based resin waste (recycled modified resin compound is a recycled PVC modified resin compound) and the resin paste sol is PVC paste, A good recycled PVC paste sol can be obtained.
  • a method for producing a reclaimed resin paste sol according to the present invention is a method in which a regenerated modified resin compound produced by the above method is mixed with a plasticizer.
  • the above-mentioned regenerated modified resin compound has a high affinity with a plasticizer, and a regenerated resin paste sol with extremely dispersibility can be obtained.
  • the composite thermoplastic resin waste is PVC resin waste (recycled modified resin compound is a recycled PVC compounded resin compound)
  • a very good recycled PVC paste sol can be obtained.
  • the regenerated modified resin compound according to the present invention is a regenerated modified resin compound produced by the above-described production method.
  • the reclaimed resin paste sol according to the present invention is a regenerated PVC paste sol produced by the above-described production method.
  • Another regenerated modified resin compound according to the present invention is a granule produced using composite thermoplastic resin waste as a raw material, and has a primary particle size of 1 to 50 / ⁇ ⁇ . Average particle size of granules 11
  • Such a regenerated modified resin compound is excellent in one or more of adhesion prevention, dust generation prevention, uniformity of granule particle size, fluidity, and bulk density.
  • Fat paste sol has good mixing with plasticizer.
  • a method for producing a regenerated inorganic filler according to the present invention is a method of producing a resin powder for a filler obtained by pulverizing a composite thermoplastic fat waste containing an inorganic substance as a filler.
  • the filler is coated by mixing and stirring and mixing the filler and the resin powder until the resin powder is in a semi-molten state.
  • Examples of the filler include calcium carbonate.
  • the resin powder is at least one of virgin resin and a regenerated resin compound obtained by pulverizing composite thermoplastic resin waste.
  • Recycled resin compound may be a mixture of two or more different types.
  • a stabilizer and a lubricant to the filler.
  • the stabilizer include zinc stearate
  • the lubricant include
  • the present invention also discloses the following inventions.
  • PVC-based waste materials whose main constituents are waste resin, plasticizers, fillers, etc., that is, composite vinyl resin powders derived from waste, that is, the back side vinyl chloride backing layer of tile carpets, long PVC floor sheets
  • thermoplastic resin powder of PVC floor material derived from waste that has been finely pulverized to a particle size of 500 microns, preferably 300 microns or less.
  • V After mixing, V, raising the temperature until reaching a semi-molten state, cooling the powdered product with stirring and condylarizing it, mixing the powdered product appropriately with a known PVC paste, A granular powder that can be mixed and stirred until it is dispersed into fine particles and used as a molding paste PVC, and a method for producing the same.
  • the waste resin powder finely pulverized to 500 m or less, preferably 300 m or less is granulated by stirring, mixing, heating, cooling, or the like, as already described.
  • the properties of the powder product are improved, and sheet processing greatly contributes to the improvement of productivity in the field of use of the powder product.
  • Fig. 1 is a microscopic photograph of a 500-m powder obtained by cutting and pulverizing composite thermoplastic resin waste.
  • FIG. 2 is a flow diagram for modifying a 500 ⁇ m powder.
  • Figure 3 is a process flow diagram.
  • FIG. 4 is a photomicrograph of a powder (regenerated modified resin compound) that has been refined from 500 m to 300 m.
  • FIG. 5 is a photomicrograph of a regenerated resin compound dispersed in a vinyl chloride paste.
  • FIG. 6 is a blending flow diagram of a 200-m recycled powder product and a vinyl virgin paste resin.
  • FIG. 7 is a photomicrograph of granular waste composite resin (regenerated modified resin compound) having an average particle size of 150 ⁇ m.
  • FIG. 8 shows a modified composite cake made from recycled salt pico compound and virgin PVC paste resin. This is a micrograph of a fat compound dispersed in a plasticizer.
  • FIG. 9 is a micrograph of the modified calcium carbonate powder.
  • FIG. 2 is an example of a flow diagram of an embodiment of the present invention
  • FIG. 3 is an example of a process flow diagram, and a waste PVC system of 500 ⁇ m or less obtained from a backing layer 1 of a used tile carpet.
  • the granule of the resin powder (recycled resin compound) 3 will be described.
  • PVC backing layer 1 in tile carpet production by a general sol-gel method is approximately 100 parts by weight of PVC paste resin, plasticizer (DOP) IOO part, 400 parts filler (calcium carbonate), etc. It consists of a small amount of additives such as stabilizers, and after paste-zolization at room temperature, it is commercialized through heating and cooling processes! / Speak.
  • DOP plasticizer
  • filler calcium carbonate
  • the composition of the powder product (recycled resin compound 3) of the vinyl chloride backing layer of waste tile carpets sold on the market is It is as follows. Such a reclaimed resin compound 3 is obtained by cutting the vinyl chloride backing layer 1 of the waste tile carpet with the rotary blade 2.
  • TCB-500 a waste tile carpet PVC backing powder product as described in the previous section, is a powder product centered on a 500 m grain size (comma shape) as shown in Fig. 1 above.
  • the reclaimed resin compound 3 which is a powder product
  • a known high-speed rotary mixer for example, Supermixer manufactured by Rikikuta Co., Ltd. (Henshell mixer, etc.) Stirring and mixing No. 12 at 1000 rpm and 100 to 140 ° C using self-heating due to friction until it is almost semi-molten, transferred to cooling bath 20 and cooled with stirring, granulated I let you go.
  • This granular powder product is a regenerated modified resin compound 8.
  • the cooling bath 20 includes a stirring blade 22 driven by a motor 24, a cold air blowing nozzle 26 for internal cooling, and a water cooling jacket 27, and can cool the inside.
  • a suitable rotation speed of the stirring blade 12 is 1000-2000 rpm.
  • granulation occurred in the stirring and mixing tank 10. Therefore, cooling with stirring is not essential for granulation, but it goes without saying that the cooling process is preferred from the viewpoint of work efficiency.
  • Fig. 4 is a microscopic photograph of the granular powder product (regenerated modified resin compound powder 8) after the above-mentioned operation. As a whole, the average particle size before the operation is about 500 m to 200 m. The bulk density was increased to 0.94 g / cm 3 , and marked improvements such as adhesion prevention, dust generation prevention, high fluidity, and particle size uniformity were observed.
  • Fig. 5 is a photograph of the manufactured recycled PVC paste sol (regenerated wax paste sol).
  • a thickener eg, polyethylene glycol or polyethylene glycol ether
  • diluent for example, the viscosity can be increased by adding additives such as hydrocarbon solvents having 7 to 24 carbon atoms. It is expected that many tile carpet manufacturers that currently use the sol-gel method will find a way to recycle waste tile carpets without major equipment modifications.
  • a suitable blending ratio is, for example, 50 to 200 parts of a vinyl chloride paste sol based on 100 parts by weight of the regenerated modified PVC resin compound.
  • a plasticizer such as DOP
  • the granular PVC particles (regenerated modified resin compound) 9 of Example 1 is mixed and stirred
  • the regenerated modified resin compound is separated very well.
  • a scattered PVC paste sol-like mixture is obtained.
  • a suitable blending ratio is, for example, 50 parts by weight of plasticizer: LOO part with respect to 100 parts of the regenerated modified resin compound by weight.
  • Such a PVC paste sol can maintain a stable sol state for more than one month.
  • This PVC paste resin can be handled as a master batch, and virgin PVC resin and various additives can be appropriately blended and used for final product production.
  • the method of granulating a regenerated resin compound finely divided to an average particle size of about 500 ⁇ m into a semi-molten state by stirring and mixing is performed by further refinement by a kneading effect.
  • improved compatibility with plasticizers, diluents, fillers, etc., and uniform dispersion are achieved, enabling the inclusion of 50% by weight or more of recycled resin compounds in recycled products.
  • TCB-500 manufactured by Refineverse Co., Ltd. (the above-mentioned reclaimed resin compound) was further refined to an average particle size of 2 m using the company's twin-shaft inner / outer cylinder rotary cutting machine (TCB-200).
  • vinyl paste paste (P-21 00 made by Shin Daiichi PVC Co., Ltd.) was placed and stirred and mixed in the high-speed rotary mixer (stirring and mixing tank 10) described above. The mixture was heated to 135 ° C, and after semi-melting, the mixture was cooled with stirring in the cooling bath 20 and granulated (Fig.
  • the regenerated modified composite resin compound consisting of the regenerated salt pico compound TCB-200 (50 parts) and the virgin PVC paste resin P-21 (50 parts) is used as a plasticizer (in DOP 00 parts at room temperature). After mixing, the mixture was stirred and mixed with a known renderer, and as a result, uniform dispersion was observed as shown in FIG.
  • regenerated PVC powder finely divided to an average particle size of about 200 ⁇ m is further mixed with virgin rosin in an upper half melt state
  • the method of granulating by cooling as necessary is to improve the affinity with plasticizers, diluents, fillers, etc. by further fine-graining by kneading effect and coating effect of virgin resin. Uniform dispersion is achieved, and more than 50% by weight of recycled PVC powder can be mixed into recycled products.
  • a good recycled PVC paste can also be obtained by mixing PVC paste (PVC paste resin + plasticizer) with the modified recycled resin compound thus granulated.
  • fillers such as calcium carbonate and titanium dioxide are by-produced.
  • fillers such as calcium carbonate and titanium dioxide are by-produced.
  • the vinyl chloride backing layer of a waste tile carpet is pulverized to an average particle size of 500 ⁇ m using a cutting machine disclosed in Japanese Patent Laid-Open No. 2003-088772, calcium carbonate of 100 m or less Separation of about 5-10% of product weight.
  • the sieving component when the cutting powder is separated by a 100 m sieve becomes this filling.
  • Calcium carbonate which is a by-product filler as described above, contains glass fiber and PVC resin powder that have passed through a 100 m sieve, and these are mixed in an isolated state.
  • the modified calcium carbonate powder (recycled inorganic filler) clearly shows an improvement in the particle shape, and the powder product is less susceptible to automation of the input in the production process. Adaptable.
  • rosin powder such as virgin rosin and a mixture of a plurality of types of regenerated rosin compounds may be added in place of the regenerated salt pico compound, and stabilizers, lubricants, etc. may be added as desired. Can be added in combination.
  • the stirring and mixing according to the above-described embodiments can be performed using various stirring devices and kneading devices other than the above-described high-speed rotary mixer.
  • the present invention can also be implemented with a stirring device provided with stirring blades that rotate around a horizontal rotation axis in a container.
  • the power using a recycled resin compound obtained by cutting the backing layer of the waste tile carpet, the long PVC floor sheet, the PVC homogenized style, the surface resin layer of the PVC wallpaper, and the water shielding for civil engineering Recycled resin compound obtained by cutting other PVC waste materials such as PVC sheet and soundproof PVC sheet may be used.
  • PVC resin waste for example, composite thermoplastic resin such as polyolefin resin. It may be a recycled resin compound obtained by cutting waste.
  • the vinyl chloride resin waste usually contains a PVC resin, a plasticizer, and a filler in many cases.
  • a regenerated modified resin compound obtained by granulating a recycled resin compound obtained by cutting a composite thermoplastic resin other than a PVC resin resin waste as described above is also usable with a plasticizer and the resin component. High mixability with rosin paste sol mixed with plasticizer.
  • a recycled resin compound is used in which the composite resin waste is finely powdered to 500 ⁇ m or less by a cutting method. Recycled resin compound powdered to 500 m or less may be used.
  • the composite thermoplastic resin waste is preliminarily treated with a particle size of 500 Regenerated resin compound obtained by finely pulverizing to ⁇ m or less may be used in combination of multiple types.
  • recycled resin components obtained by pulverizing different PVC resin wastes may be mixed together.
  • recycled resin compounds derived from PVC resin wastes and PVC You may mix with the blended non-waxed waste non-waxed waste-based recycled fat compound.
  • blended resin waste materials include waste materials in which additives such as plasticizers and fillers are added to copolymers of vinyl chloride and vinyl acetate, and plasticizers in mixed resins of vinyl chloride and acrylic resin. And waste materials with fillers added.
  • the present invention provides a powdered composite waste product derived from waste, and in particular, operating conditions of the fine powder product, that is, the adhesion prevention property and dust generation prevention property of the powder product.
  • the improvement in particle size uniformity, fluidity, and density has greatly promoted the possibility of reusing these powder products.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

In resource-recycling a thermoplastic resin waste discharged as an industrial waste, an improvement in adhesion of powder in pulverization, dusting, fluidity, bulk density, a variation in particle size and the like is made to improve the operability of fine powder having a size of not more than 500 μm. A waste-derived composite resin powder product which has previously been powdered to an average particle diameter of not more than 500 μm is stirred and mixed until the powder is brought to a semi-molten state for granulation.

Description

再生改質樹脂コンパゥンドの製造方法及び再生改質樹脂コンパゥンド 技術分野  Manufacturing method of regenerated modified resin compound and regenerated modified resin compound technical field
[0001] 本発明は、産業廃棄物として排出される熱可塑性榭脂廃材の再資源化において、 あら力じめ 500 m以下、望ましくは 300 m以下に粉体化された廃棄物由来の粉体 品の顆粒ィ匕ゃ改質に係わり、該粉体品の付着防止性など操作性改善に寄与するだ けでなぐ他の榭脂成分や添加剤等との調合などにより、再生原料の多様な用途に 対応しうる複合廃榭脂粉体品の再生改質榭脂コンパゥンド及びその製造方法に関す る。  [0001] The present invention relates to a waste-derived powder that has been pulverized to a maximum of 500 m or less, preferably 300 m or less, in the recycling of thermoplastic resin waste discharged as industrial waste. As a result of blending with other oil components and additives as well as improving the operability such as adhesion prevention of the powder product, it is involved in the modification of the granule of the product. The present invention relates to a regenerated modified resin compound of a composite waste resin powder product that can be used for various purposes and a method for producing the same.
背景技術  Background art
[0002] 複合熱可塑性榭脂廃材の再資源化において、粉砕 (粉体化）工程は不可欠であり 、さらに良質の再資源材料ィ匕のためには微粉砕ィ匕工程も必須となってきている。  [0002] In the recycling of composite thermoplastic resin waste materials, the pulverization (powdering) process is indispensable, and the fine pulverization process has become essential for high-quality recycled materials. Yes.
[0003] 発明者等は、「一軸切削粉体化装置」を、複合熱可塑性榭脂廃材を 500 IX m以下 の粒度に粉体ィ匕する装置として実用に供して 、る (特許文献 1参照)。  [0003] The inventors have put the “uniaxial cutting powdering device” into practical use as a device for powdering composite thermoplastic resin waste to a particle size of 500 IX m or less (see Patent Document 1). ).
[0004] 現在、図 1に示すように切削粉砕加工により複合熱可塑性榭脂廃材を微粉化した 微粉体 (樹脂コンパゥンド）は勾玉形状になっており、嵩密度が約 0.5トン/ m3と軽ぐ 多少の付着性があり、またブリッジが生じやすいという傾向がある。また、切削以外の 方法で微粉体ィ匕したものも同様の傾向を有する。したがって、複合熱可塑性榭脂廃 材を粉体ィ匕した粉である再生榭脂コンパゥンドの利用を促進するため、これらの欠点 を排除することが望ましい。 [0004] Currently, fine powder micronized composite thermoplastic榭脂waste by cutting grinding process as shown in FIG. 1 (resin Konpaundo) has become a comma-shaped bead shape, bulk density of about 0.5 t / m 3 Light There is a tendency for some adhesion and bridging. In addition, a fine powder produced by a method other than cutting has the same tendency. Therefore, it is desirable to eliminate these disadvantages in order to promote the use of recycled resin compound, which is a powder obtained by pulverizing composite thermoplastic resin waste.
特許文献 1 :特開 2003— 088772号公報  Patent Document 1: Japanese Patent Application Laid-Open No. 2003-088772
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0005] 本発明では、前記のような複合熱可塑性榭脂廃棄物の微粉化に伴う粉体 (再生榭 脂コンパゥンド)の付着性、発塵性、流動性、嵩密度、粉体粒度のバラツキ等の内の 少なくとも 1つの改善を行い 500 m以下の微粉体に関わる操作効率の向上を課題と する。 課題を解決するための手段 [0005] In the present invention, there are variations in adhesion, dust generation, fluidity, bulk density, and powder particle size of powder (recycled resin compound) associated with pulverization of the composite thermoplastic resin waste as described above. The improvement of the operation efficiency related to fine powders of 500 m or less is made as an issue. Means for solving the problem
[0006] 本発明では、上記課題を解決するため、あらかじめ平均粒径 500 μ m以下に粉体 化した廃棄物由来の複合熱可塑性榭脂粉体を、公知の混練り装置等を用いて、例 えば、攪拌羽を回転数 1000〜2000rpm程度で回転させること等により十分に攪拌 •混合を行う。その結果、攪拌'混合により、該複合熱可塑粉体の細粒化が行われる と共に摩擦等による自己発熱により樹脂が半溶融状態となり、顆粒、すなわち、微小 粒子 (一次粒子)の集合体が形成される。形成される顆粒は、例えば、平均一次粒径 力^〜 50 μ mであり、顆粒全体の平均径は 10〜500 μ mである。このことにより、微 粉ィ匕に伴う粉体の付着性、発塵性、流動性の低下、低嵩密度、粉体粒度のバラツキ 等の少なくとも 、ずれかの改善を行!、前述の課題が解決する。  In the present invention, in order to solve the above-mentioned problems, a composite thermoplastic resin powder derived from waste that has been previously pulverized to an average particle size of 500 μm or less is prepared using a known kneading apparatus or the like. For example, sufficiently stir and mix by rotating the stirring blades at a rotational speed of about 1000 to 2000 rpm. As a result, the composite thermoplastic powder is refined by stirring and mixing, and the resin is in a semi-molten state due to self-heating due to friction and the like, and an aggregate of granules, that is, fine particles (primary particles) is formed. Is done. The formed granules have, for example, an average primary particle size force of ˜50 μm and an average diameter of the whole granule of 10 to 500 μm. As a result, at least any deviation such as powder adhesion, dust generation, fluidity reduction, low bulk density, and powder particle size variation accompanying fine powder is improved! Resolve.
[0007] すなわち、本発明にかかる再生改質榭脂コンパゥンドの製造方法は、複合熱可塑 性榭脂廃棄物をあら力じめ粒径 500 m以下、より好ましくは 300 m以下に微粉ィ匕 して得た一もしくは複数種の再生榭脂コンパゥンドを、前記再生榭脂コンパゥンドが 半溶融状態となるまで攪拌'混合することにより顆粒ィ匕する。  [0007] That is, in the method for producing a regenerated modified resin composition according to the present invention, the composite thermoplastic resin waste is pulverized to a fine particle size of 500 m or less, more preferably 300 m or less. One or a plurality of types of regenerated resin compound obtained in this manner are granulated by stirring and mixing until the regenerated resin compound is in a semi-molten state.
[0008] ここで、複合熱可塑性榭脂廃棄物とは、熱可塑性榭脂と、充填剤、可塑剤等の添 加剤とを含む混合榭脂廃棄物や、熱可塑性榭脂層を含む複数の榭脂層の積層体の 廃棄物をいう。該積層体の廃棄物には、繊維仕上げ層と榭脂層との積層体あるいは 、繊維芯材層を榭脂層でサンドイッチした構造の積層体でもよい。榭脂層は充填剤 や繊維等の添加剤を含んでもよい。充填剤としては、炭酸カルシウム等、繊維として はガラス繊維等、可塑剤としては DOP等が挙げられる。また、熱可塑性榭脂としては 、塩化ビニル、塩ィ匕ビニルと酢酸ビニルの共重合体、塩ィ匕ビニルとアクリル系榭脂と の混合物等が挙げられる。  Here, the composite thermoplastic resin waste is a mixed resin waste containing a thermoplastic resin and an additive such as a filler or a plasticizer, or a plurality of resin including a thermoplastic resin layer. This refers to the waste of the laminate of the resin layer. The laminate waste may be a laminate of a fiber finish layer and a resin layer, or a laminate having a structure in which a fiber core layer is sandwiched between resin layers. The resin layer may contain additives such as fillers and fibers. Examples of the filler include calcium carbonate, fibers include glass fibers, and plasticizers include DOP. Examples of the thermoplastic resin include vinyl chloride, a copolymer of vinyl chloride and vinyl acetate, a mixture of vinyl chloride and acrylic resin, and the like.
[0009] また、半溶融状態とは、榭脂の温度が軟化温度より高くかつ融点より低い状態であ る。例えば塩ビ系榭脂では 100〜140°Cである。半溶融状態に維持する時間は、 1 〜 10分程度が好ましい。  [0009] The semi-molten state is a state in which the temperature of the resin is higher than the softening temperature and lower than the melting point. For example, it is 100-140 ° C for PVC-based rosin. The time for maintaining the semi-molten state is preferably about 1 to 10 minutes.
[0010] 複合熱可塑性榭脂廃棄物としては、塩ビ系榭脂廃棄物が挙げられる。塩ビ系榭脂 廃棄物としては、塩ビ榭脂、可塑剤、及び、充填剤を含むものが上げられる。具体的 には、塩ビ系榭脂廃棄物として、タイルカーペットの裏面塩ビバッキング層、長尺塩ビ 床シート、塩ビホモジニァスタイル、塩ビ壁紙の表面榭脂層、土木用遮水塩ビシート[0010] Examples of the composite thermoplastic resin waste include a vinyl chloride resin waste. Examples of the PVC-based resin waste include those containing a PVC resin, a plasticizer, and a filler. Specifically, as vinyl chloride-based resin waste, the back side PVC backing layer of tile carpets, long PVC Floor sheet, PVC homogenia style, PVC wall surface grease layer, civil engineering water impermeable PVC sheet
、及び、防音塩ビシートから構成される群の内の少なくとも 1つが挙げられる。 And at least one of the group consisting of soundproof PVC sheets.
[0011] 上記の発明によれば、再生榭脂コンパゥンドが顆粒となるため、付着防止性の向上[0011] According to the above invention, since the recycled resin compound becomes granules, the adhesion preventing property is improved.
、発塵防止性の向上、粉体粒度の均一性の向上、流動性の向上、嵩密度の改善の 内の 1つ以上が実現する。 One or more of improved dust prevention, improved uniformity of powder particle size, improved fluidity, and improved bulk density.
[0012] ここで、顆粒ィ匕された粉体をさらに攪拌しながら冷却することが好ましい。これによりHere, it is preferable to cool the granulated powder while further stirring. This
、特に流動性のよい顆粒が得られる。 Granules with particularly good fluidity can be obtained.
[0013] また、前記再生榭脂コンパゥンドに対して、さらに、バージン榭脂、安定剤、可塑剤[0013] Further, in addition to the recycled resin compound, virgin resin, stabilizer, plasticizer
、希釈剤、溶剤、及び、充填剤からなる群から選択される少なくとも 1つを加え、これら の混合物を、半溶融状態に達するまで攪拌'混合することにより顆粒ィ匕することも好ま しい。 It is also preferable to granulate by adding at least one selected from the group consisting of a diluent, a solvent, and a filler, and stirring and mixing the mixture until a semi-molten state is reached.
[0014] これにより、再生改質榭脂コンパゥンドの溶解性、他の榭脂成分との親和性の向上 が実現する。  [0014] Thereby, it is possible to improve the solubility of the regenerated modified resin compound and the affinity with other resin components.
[0015] また、再生改質榭脂コンパゥンドは、再生榭脂コンパゥンドを 50重量 %以上含むこと が好ましぐこれにより、枯渴資源である石油由来の榭脂原料の循環的利用に寄与 すると共に、バージン榭脂のみからの生産に比べ CO排出を削減する効果がある。  [0015] In addition, it is preferable that the regenerated modified resin compound contains 50% by weight or more of the regenerated resin compound, thereby contributing to the cyclic use of the oil-derived resin material that is a dry resource. Compared with production from virgin rosin alone, it has the effect of reducing CO emissions.
2  2
[0016] 本発明にかかる再生榭脂ペーストゾルの製造方法は、上述の方法により製造した 再生改質榭脂コンパゥンドと、榭脂ペーストゾルとを混合するものである。  [0016] A method for producing a reclaimed resin paste sol according to the present invention is a method in which a regenerated modified resin composition produced by the above-described method is mixed with a resin paste sol.
[0017] 上述の再生改質榭脂コンパゥンドは、榭脂ペーストゾルとの親和性が高ぐ極めて 分散性のよい再生榭脂ペーストゾルが得られる。特に、複合熱可塑性榭脂廃棄物が 塩ビ系榭脂廃棄物であり（再生改質榭脂コンパゥンドが再生塩ビ改質榭脂コンパゥン ドであり）、榭脂ペーストゾルが塩ビペーストであると、極めて良好な再生塩ビペースト ゾルが得られる。  [0017] The above-mentioned regenerated modified resin compound has a high affinity with the resin paste sol, and a regenerated resin paste sol with excellent dispersibility can be obtained. In particular, if the composite thermoplastic resin waste is PVC-based resin waste (recycled modified resin compound is a recycled PVC modified resin compound) and the resin paste sol is PVC paste, A good recycled PVC paste sol can be obtained.
[0018] 本発明にかかる再生榭脂ペーストゾルの製造方法は、上述の方法により製造した 再生改質榭脂コンパゥンドと、可塑剤とを混合するものである。  [0018] A method for producing a reclaimed resin paste sol according to the present invention is a method in which a regenerated modified resin compound produced by the above method is mixed with a plasticizer.
[0019] 上述の再生改質榭脂コンパゥンドは、可塑剤との親和性が高ぐ極めて分散性のよ い再生榭脂ペーストゾルが得られる。特に、複合熱可塑性榭脂廃棄物が塩ビ系榭脂 廃棄物である (再生改質榭脂コンパゥンドが再生塩ビ改質榭脂コンパゥンドである）と 、極めて良好な再生塩ビペーストゾルが得られる。 [0019] The above-mentioned regenerated modified resin compound has a high affinity with a plasticizer, and a regenerated resin paste sol with extremely dispersibility can be obtained. In particular, if the composite thermoplastic resin waste is PVC resin waste (recycled modified resin compound is a recycled PVC compounded resin compound) A very good recycled PVC paste sol can be obtained.
[0020] 本発明にかかる再生改質榭脂コンパゥンドは上述の製造方法により製造された再 生改質榭脂コンパゥンドである。  [0020] The regenerated modified resin compound according to the present invention is a regenerated modified resin compound produced by the above-described production method.
[0021] また、本発明にかかる再生榭脂ペーストゾルは、上述の製造方法により製造された 再生塩ビペーストゾルである。 [0021] Further, the reclaimed resin paste sol according to the present invention is a regenerated PVC paste sol produced by the above-described production method.
[0022] 本発明にカゝかる他の再生改質榭脂コンパウンドは、複合熱可塑性榭脂廃棄物を原 料として製造された顆粒であり、一次粒子径が 1〜50 /ζ πιであり、顆粒の平均粒子径 カ 10〜500 ！11でぁる。 [0022] Another regenerated modified resin compound according to the present invention is a granule produced using composite thermoplastic resin waste as a raw material, and has a primary particle size of 1 to 50 / ζ πι. Average particle size of granules 11
[0023] このような再生改質榭脂コンパゥンドは、付着防止性、発塵防止性、顆粒の粒径の 均一性、流動性、嵩密度の改善の内の 1つ以上に優れ、また、榭脂ペーストゾルゃ 可塑剤との混合性もよい。 [0023] Such a regenerated modified resin compound is excellent in one or more of adhesion prevention, dust generation prevention, uniformity of granule particle size, fluidity, and bulk density. Fat paste sol has good mixing with plasticizer.
[0024] 本発明にカゝかる再生無機充填剤の製造方法は、無機物質を充填剤として含有する 複合熱可塑性榭脂廃棄物を粉体化することにより得た充填剤に対して榭脂粉を混入 し、該榭脂粉が半溶融状態になるまで充填材及び榭脂粉を攪拌'混合することにより 充填材にコーティングを行う。 [0024] A method for producing a regenerated inorganic filler according to the present invention is a method of producing a resin powder for a filler obtained by pulverizing a composite thermoplastic fat waste containing an inorganic substance as a filler. The filler is coated by mixing and stirring and mixing the filler and the resin powder until the resin powder is in a semi-molten state.
[0025] これにより、再利用時に他の樹脂と混合使用する際に、当該混合対象となる樹脂に 対する親和性を増加させることができる。また、複合熱可塑性榭脂廃棄物の粉体ィ匕 により副生する充填物の発塵性の低減を実現できる。これらにより、充填剤としてリサ イタル利用しやすい。  [0025] This makes it possible to increase the affinity for the resin to be mixed when used in combination with another resin during reuse. Further, it is possible to reduce the dust generation property of the by-product by using the powder of composite thermoplastic resin waste. Because of these, it is easy to use ricycle as a filler.
[0026] 充填剤としては炭酸カルシウムが挙げられる。  [0026] Examples of the filler include calcium carbonate.
[0027] また、充填剤に対して 10重量 %以内の榭脂粉を混入することが好ましぐこれにより、 十分なコーティング効果が認められる。  [0027] In addition, it is preferable to mix the resin powder within 10% by weight with respect to the filler, whereby a sufficient coating effect is recognized.
[0028] また、榭脂粉は、バージン榭脂、及び、複合熱可塑性榭脂廃棄物を粉体化して得 た再生榭脂コンパウンドの内の少なくとも一方であることが好ましい。再生榭脂コンパ ゥンドは互 、に異なる複数種を混合して 、てもよ 、。 [0028] It is preferable that the resin powder is at least one of virgin resin and a regenerated resin compound obtained by pulverizing composite thermoplastic resin waste. Recycled resin compound may be a mixture of two or more different types.
[0029] さらに、充填剤に対して安定剤及び滑剤の少なくとも一方を添加することが好まし い。安定剤としては、例えば、ステアリン酸亜鉛等が挙げられ、滑剤としては、例えば[0029] Furthermore, it is preferable to add at least one of a stabilizer and a lubricant to the filler. Examples of the stabilizer include zinc stearate, and examples of the lubricant include
、流動パラフィン等が挙げられる。 [0030] また、本明細書には以下のような発明も開示されている。 And liquid paraffin. [0030] The present invention also discloses the following inventions.
[0031] 1.あら力じめ粒径 500ミクロン、望ましくは 300ミクロン以下に微粉ィ匕した廃棄物由来 の一もしくは複数種の複合熱可塑性榭脂粉体品を、公知の混練り装置を用いて攪拌 •混合を行いつつ半溶融状態に達するまで昇温させた後、該粉体品を攪拌しながら 冷却して顆粒化させ、該粉体品の付着防止性、発塵防止性、均一性、流動性、嵩密 度の改善等を実現したことを特徴とする廃複合熱可塑性榭脂からなる再生改質榭脂 コンパゥンド及びその製造方法。  [0031] 1. Using a known kneading apparatus, one or a plurality of composite thermoplastic resin powders derived from waste finely pulverized to a particle size of 500 microns, preferably 300 microns or less. Stirring • After heating up to a semi-molten state while mixing, the powder product is cooled and granulated while stirring to prevent adhesion of the powder product, dust generation prevention, uniformity, A regenerated modified resin composition comprising a waste composite thermoplastic resin characterized by improving fluidity and bulk density, and a method for producing the same.
[0032] 2.廃棄物由来の複合榭脂粉体品において、その主たる構成成分が榭脂、可塑剤 、充填剤など力もなる塩ビ系廃材、すなわちタイルカーペットの裏面塩ビバッキング 層、長尺塩ビ床シート、塩ビホモジニァスタイル、塩ビ壁紙の表面榭脂層、土木用遮 水塩ビシート、防音塩ビシート等である請求項 1記載の再生改質塩ビ榭脂コンパゥン ド及びその製造方法。  [0032] 2. PVC-based waste materials whose main constituents are waste resin, plasticizers, fillers, etc., that is, composite vinyl resin powders derived from waste, that is, the back side vinyl chloride backing layer of tile carpets, long PVC floor sheets The regenerated modified PVC resin composition according to claim 1, which is a PVC homogenized style, a surface resin layer of PVC wallpaper, a water-proof PVC sheet for civil engineering, a soundproof PVC sheet, and the like.
[0033] 3.請求項 1及び 2において、それぞれの該粉体品に適量のバージン榭脂、ブレン ド榭脂、安定剤、可塑剤、希釈剤、溶剤、充填剤その他添加剤を加えて、公知の混 練り装置を用いて攪拌混合を行!ヽ半溶融状態に達するまで昇温させた後、該複合 粉体品を攪拌しながら冷却して顆粒化させ、該粉体品の溶解性、他の榭脂成分との 親和性の向上を実現したことを特徴とする改質複合コンパゥンド及びその製造方法。  [0033] 3. In claims 1 and 2, an appropriate amount of virgin resin, blend resin, stabilizer, plasticizer, diluent, solvent, filler and other additives are added to each powder product, Stir and mix using a known kneading device! After raising the temperature until it reaches a semi-molten state, the composite powder product is cooled and granulated while stirring, so that the solubility of the powder product, A modified composite compound characterized in that it has improved affinity with other rosin components and a method for producing the same.
[0034] 4.あら力じめ粒径 500ミクロン、望ましくは 300ミクロン以下に微粉ィ匕した廃棄物由来 の塩ビ系床材の熱可塑性榭脂粉体品を、公知の混練り装置を用いて攪拌'混合を行 V、つつ半溶融状態に達するまで昇温させた後、該粉体品を攪拌しながら冷却して顆 粒化させ、該粉体品を公知の塩ビペーストに適宜混合し、さらに十分に混合'攪拌し て微粒子に至るまで分散させ、成形用ペースト塩ビとして利用可能な顆粒粉体及び その製造方法。  [0034] 4. Stir using a known kneading machine for a thermoplastic resin powder of PVC floor material derived from waste that has been finely pulverized to a particle size of 500 microns, preferably 300 microns or less. 'After mixing, V, raising the temperature until reaching a semi-molten state, cooling the powdered product with stirring and condylarizing it, mixing the powdered product appropriately with a known PVC paste, A granular powder that can be mixed and stirred until it is dispersed into fine particles and used as a molding paste PVC, and a method for producing the same.
[0035] 5.請求項 1、 2、 3及び 4に記載する改質複合コンパゥンドにおいて、廃棄物由来の 粉体品が 50重量 %以上であることを特徴とする改質複合コンパゥンド。  [0035] 5. The modified composite compound according to claim 1, 2, 3, and 4, wherein the waste-derived powder product is 50% by weight or more.
[0036] 6.炭酸カルシウムあるいは類似の無機物質を充填剤として含有する廃棄物由来の 複合熱可塑性榭脂の粉体化工程にぉ 、て、該榭脂より分離して副生する炭酸カル シゥム等の充填物に、 10重量 %以内の該榭脂成分あるいはバージン榭脂等を混入し 、公知の混練り装置を用いて攪拌混合を行い、半溶融状態に達するまで昇温させた 後、該粉体品を攪拌しながら冷却して顆粒化させ、副生充填物の発塵性防止を実現 し、再度充填剤として使用可能にしたことを特徴とする改質炭酸カルシウム粉体等無 機充填剤及びその製造方法。 [0036] 6. In the process of pulverizing composite thermoplastic resin derived from waste containing calcium carbonate or a similar inorganic substance as a filler, calcium carbonate separated from the resin and by-produced In such a filler, 10% by weight or less of the fat component or virgin fat is mixed. The mixture is stirred and mixed using a known kneader and heated until it reaches a semi-molten state, and then the powder product is cooled and granulated while stirring to prevent dust from forming by-products. An inorganic filler such as a modified calcium carbonate powder and a method for producing the same, characterized in that
[0037] 7.請求項 6に記載の副生する炭酸カルシウム等の充填物にコーティング剤としてバ 一ジン榭脂、ブレンド榭脂、安定剤、滑剤等を加えて公知の混練装置を用いて攪拌 混合を行い、半溶融状態に達するまで昇温させた後、該粉体品を攪拌しながら冷却 してコーティングを施し、該副生充填物の発塵防止性を向上させるとともに他の樹脂 成分との親和性の向上を実現したことを特徴とする改質副生充填物及びその製造方 法。  [0037] 7. Add virgin rosin, blended rosin, stabilizer, lubricant, etc. as a coating agent to the filler such as by-product calcium carbonate according to claim 6, and stir using a known kneader. After mixing and raising the temperature until it reaches a semi-molten state, the powder product is cooled while stirring and coated to improve the dust generation prevention property of the by-product filling and other resin components. A modified by-product packing and a method for producing the same, characterized in that improved affinity is achieved.
発明の効果  The invention's effect
[0038] 本発明によれば、 500 m以下望ましくは 300 m以下に微粉ィ匕された廃榭脂粉体 品を攪拌 '混合'加熱 ·冷却等の操作により顆粒ィ匕することにより、既に述べた通り該 粉体品の属性を改質し、シート加工ゃ該粉体品の利用分野における生産性の向上 に大きく寄与することになる。  [0038] According to the present invention, the waste resin powder finely pulverized to 500 m or less, preferably 300 m or less is granulated by stirring, mixing, heating, cooling, or the like, as already described. As a result, the properties of the powder product are improved, and sheet processing greatly contributes to the improvement of productivity in the field of use of the powder product.
図面の簡単な説明  Brief Description of Drawings
[0039] [図 1]図 1は、複合熱可塑性榭脂廃材を切削粉砕加工して得た 500 mの粉体の顕 微鏡写真である。  [0039] [Fig. 1] Fig. 1 is a microscopic photograph of a 500-m powder obtained by cutting and pulverizing composite thermoplastic resin waste.
[図 2]図 2は、 500 μ mの粉体の改質のためのフロー図である。  [FIG. 2] FIG. 2 is a flow diagram for modifying a 500 μm powder.
[図 3]図 3は、プロセスフロー図である。  [Figure 3] Figure 3 is a process flow diagram.
[図 4]図 4は、 500 mから 300 mに細粒子化され改質された粉体 (再生改質榭脂コ ンパウンド)の顕微鏡写真である。  [FIG. 4] FIG. 4 is a photomicrograph of a powder (regenerated modified resin compound) that has been refined from 500 m to 300 m.
[図 5]図 5は、塩ビペースト中に分散する再生榭脂コンパゥンドの顕微鏡写真である。  [FIG. 5] FIG. 5 is a photomicrograph of a regenerated resin compound dispersed in a vinyl chloride paste.
[図 6]図 6は、 200 m再生粉体品と塩ビバージンペースト榭脂との配合フロー図であ る。  [FIG. 6] FIG. 6 is a blending flow diagram of a 200-m recycled powder product and a vinyl virgin paste resin.
[図 7]図 7は、平均粒径 150 μ mの顆粒状廃複合榭脂 (再生改質榭脂コンパゥンド)の 顕微鏡写真である。  [FIG. 7] FIG. 7 is a photomicrograph of granular waste composite resin (regenerated modified resin compound) having an average particle size of 150 μm.
[図 8]図 8は、再生塩ピコンパウンドとバージン塩ビペースト榭脂からなる改質複合榭 脂コンパゥンドが可塑剤中に分散して 、る顕微鏡写真である。 [FIG. 8] FIG. 8 shows a modified composite cake made from recycled salt pico compound and virgin PVC paste resin. This is a micrograph of a fat compound dispersed in a plasticizer.
[図 9]図 9は、改質炭酸カルシウム粉体の顕微鏡写真である。  FIG. 9 is a micrograph of the modified calcium carbonate powder.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0040] 本発明を実施する最良の形態として以下の実施例に示すように、廃複合熱可塑性 榭脂粉体品の顆粒ィ匕を行った例について説明する。 [0040] As the best mode for carrying out the present invention, as shown in the following examples, an example of granulating waste composite thermoplastic resin powder products will be described.
実施例 1  Example 1
[0041] 図 2は本発明の実施形態のフロー図の一例であり、図 3はプロセスフロー図の一例 であり、使用済みタイルカーペットのバッキング層 1から得られる 500 μ m以下の廃塩 ビ系榭脂粉体 (再生榭脂コンパゥンド ) 3の顆粒ィ匕について説明する。  [0041] FIG. 2 is an example of a flow diagram of an embodiment of the present invention, and FIG. 3 is an example of a process flow diagram, and a waste PVC system of 500 μm or less obtained from a backing layer 1 of a used tile carpet. The granule of the resin powder (recycled resin compound) 3 will be described.
[0042] 一般的なゾルゲル法によるタイルカーペットの生産における塩ビバッキング層 1は、 重量比でおおよそ塩ビペースト榭脂 100部、可塑剤（DOP)IOO部、充填剤 (炭酸カル シゥム )400部、その他少量の安定剤等の添加剤からなっており、常温下でペーストゾ ル化させた後、加熱及び冷却工程を経て製品化されて！/ヽる。  [0042] PVC backing layer 1 in tile carpet production by a general sol-gel method is approximately 100 parts by weight of PVC paste resin, plasticizer (DOP) IOO part, 400 parts filler (calcium carbonate), etc. It consists of a small amount of additives such as stabilizers, and after paste-zolization at room temperature, it is commercialized through heating and cooling processes! / Speak.
[0043] またリファインバース株式会社の「製品安全データシート」 (MSDS)によれば、巿販さ れている、廃タイルカーペットの塩ビバッキング層の粉体品（再生榭脂コンパウンド 3) の組成は、次の通りである。このような再生榭脂コンパウンド 3は、廃タイルカーペット の塩ビバッキング層 1を回転刃 2により切削することにより得られるものである。  [0043] Also, according to Refineverse Co., Ltd.'s “Product Safety Data Sheet” (MSDS), the composition of the powder product (recycled resin compound 3) of the vinyl chloride backing layer of waste tile carpets sold on the market is It is as follows. Such a reclaimed resin compound 3 is obtained by cutting the vinyl chloride backing layer 1 of the waste tile carpet with the rotary blade 2.
[表 1]  [table 1]
Figure imgf000009_0001
Figure imgf000009_0001
前項廃タイルカーペット塩ビバッキング層の粉体品 TCB-500は、前述した図 1に示 す通り勾玉状 (コンマ形状）の粒径 500 mを中心とした粉体品である。  TCB-500, a waste tile carpet PVC backing powder product as described in the previous section, is a powder product centered on a 500 m grain size (comma shape) as shown in Fig. 1 above.
図 2のフロー図及び図 3のプロセスフロー図の通り、前記粉体品である再生榭脂コン パウンド 3を公知の高速回転混合機 (例えば (株)力ヮタ製スーパーミキサー、三井鉱 山 (株)製ヘンシェルミキサー等)の攪拌混合槽 10に投入し、モータ 14により攪拌羽 12を回転数 1000rpm、 100〜140°Cにて、摩擦による自己発熱性を利用してほぼ半溶 融状態になるまで攪拌混合し、冷却槽 20に移送して攪拌しながら冷却し、顆粒化さ せた。この顆粒状粉体品が再生改質榭脂コンパゥンド 8である。なお、図 3において、 冷却槽 20は、モータ 24により駆動される攪拌羽 22と、内部冷却用の冷風吹き込みノ ズル 26と、水冷ジャケット 27とを備えており、内部の冷却が可能である。なお、攪拌 羽 12の好適な回転数は 1000— 2000rpmである。また、顆粒化は攪拌混合槽 10内 で起っていた。したがって、攪拌しながらの冷却は顆粒化にとって必須ではないが、 作業効率からみて、冷却工程を経た方が好まし ヽことは言うまでも無 ヽ。 As shown in the flow diagram of FIG. 2 and the process flow diagram of FIG. 3, the reclaimed resin compound 3, which is a powder product, is mixed with a known high-speed rotary mixer (for example, Supermixer manufactured by Rikikuta Co., Ltd. (Henshell mixer, etc.) Stirring and mixing No. 12 at 1000 rpm and 100 to 140 ° C using self-heating due to friction until it is almost semi-molten, transferred to cooling bath 20 and cooled with stirring, granulated I let you go. This granular powder product is a regenerated modified resin compound 8. In FIG. 3, the cooling bath 20 includes a stirring blade 22 driven by a motor 24, a cold air blowing nozzle 26 for internal cooling, and a water cooling jacket 27, and can cool the inside. A suitable rotation speed of the stirring blade 12 is 1000-2000 rpm. In addition, granulation occurred in the stirring and mixing tank 10. Therefore, cooling with stirring is not essential for granulation, but it goes without saying that the cooling process is preferred from the viewpoint of work efficiency.
[0045] 図 4は、前記操作後における顆粒状粉体品 (再生改質榭脂コンパゥンド粉 8)の顕 微鏡写真であるが、全体として、操作前の平均粒径 500 mから 200 m程度にまで 細粒化されており、かつ嵩密度が 0.94g/cm3に高密度化しており、付着防止性、発塵 防止性、高流動性、粒度の均一性など著しい改善が認められた。 [0045] Fig. 4 is a microscopic photograph of the granular powder product (regenerated modified resin compound powder 8) after the above-mentioned operation. As a whole, the average particle size before the operation is about 500 m to 200 m. The bulk density was increased to 0.94 g / cm 3 , and marked improvements such as adhesion prevention, dust generation prevention, high fluidity, and particle size uniformity were observed.
実施例 2  Example 2
[0046] 実施例 1で示した顆粒状塩ビ粒子 (再生改質榭脂コンパゥンド 8)を子細に観察す れば（図 4参照）さらに小さな微粒子 9の集合体になっており（図 3参照）、各微粒子 9 の大きさは 10— 50 μ mである。すなわち微小粒子が集合してなる顆粒となっている。 定法 (塩ビペースト榭脂重量：可塑剤重量 = 1 : 1)に従って配合調整した塩ビペース ト（塩ビペース ノル）にこの顆粒を 10%、 20%、 30%と順次配合し、顆粒を可塑剤 中に分散して微粒子状態まで解離させた結果、極めて良好なペースト状を示した（図 5)。図 5は、製造された再生塩ビペーストゾル (再生榭脂ペーストゾル)の写真である  [0046] If the granular PVC particles (regenerated modified resin compound 8) shown in Example 1 are closely observed (see Fig. 4), they are aggregates of smaller fine particles 9 (see Fig. 3). The size of each fine particle 9 is 10-50 μm. That is, it is a granule in which fine particles are aggregated. This granule is blended in order of 10%, 20% and 30% in a vinyl paste (pvc paste nor) blended according to the usual method (PVC paste fat weight: plasticizer weight = 1: 1). As a result of being dissociated into fine particles and dissociated to a fine particle state, a very good paste was obtained (Fig. 5). Fig. 5 is a photograph of the manufactured recycled PVC paste sol (regenerated wax paste sol).
[0047] 顆粒の添加量を増やせば可塑剤の吸収が増加し塩ビペーストゾル全体が粘凋に なるが、減粘剤（例えば、ポリエチレングリコール、若しくは、ポリエチレングリコールェ 一テル等）、希釈剤（例えば、炭素数 7〜24の炭化水素系溶剤）等の添加剤を加える ことで粘度上昇をおさえることが出来る。これは、現在ゾルゲル法を採用している多く のタイルカーペットメーカーが大幅な設備改造なしに、廃タイルカーペットの循環的 利用に途を拓くことになると期待される。好適な配合比は、例えば、重量比で、再生 改質塩ビ榭脂コンパウンド 100部に対して塩ビペーストゾル 50〜200部である。 [0048] また、実施例 1の顆粒状塩ビ粒子 (再生改質榭脂コンパゥンド) 9に対して可塑剤 ( DOP等)を混合し、混合攪拌すると、極めて良好に再生改質榭脂コンパウンドが分 散した塩ビペーストゾル状混合物が得られる。好適な配合比は、例えば、重量比で、 再生改質榭脂コンパウンド 100部に対して可塑剤 50〜： LOO部である。このような塩ビ ペーストゾルは、 1ヶ月以上安定したゾル状態を維持可能である。そして、この塩ビぺ 一スト榭脂をマスターバッチとして取り扱い、適宜、バージン塩ビ榭脂、各種添加剤を 配合して最終製品製造に供することが可能である。 [0047] Increasing the amount of added granule increases absorption of the plasticizer and makes the entire PVC paste sol viscous. However, a thickener (eg, polyethylene glycol or polyethylene glycol ether), diluent ( For example, the viscosity can be increased by adding additives such as hydrocarbon solvents having 7 to 24 carbon atoms. It is expected that many tile carpet manufacturers that currently use the sol-gel method will find a way to recycle waste tile carpets without major equipment modifications. A suitable blending ratio is, for example, 50 to 200 parts of a vinyl chloride paste sol based on 100 parts by weight of the regenerated modified PVC resin compound. [0048] Further, when a plasticizer (such as DOP) is mixed with the granular PVC particles (regenerated modified resin compound) 9 of Example 1 and mixed and stirred, the regenerated modified resin compound is separated very well. A scattered PVC paste sol-like mixture is obtained. A suitable blending ratio is, for example, 50 parts by weight of plasticizer: LOO part with respect to 100 parts of the regenerated modified resin compound by weight. Such a PVC paste sol can maintain a stable sol state for more than one month. This PVC paste resin can be handled as a master batch, and virgin PVC resin and various additives can be appropriately blended and used for final product production.
[0049] 本発明のように平均粒径 500 μ m程度に細粒子化された再生榭脂コンパゥンドを 攪拌混合により半溶融状態にして顆粒ィ匕する手法は、混練り効果によるさらなる細粒 化により、可塑剤や希釈剤、充填剤などとの親和性の向上や均一分散が実現し、リ サイクル品への再生榭脂コンパウンドの 50重量％以上の混入を可能とする。  [0049] As in the present invention, the method of granulating a regenerated resin compound finely divided to an average particle size of about 500 μm into a semi-molten state by stirring and mixing is performed by further refinement by a kneading effect. In addition, improved compatibility with plasticizers, diluents, fillers, etc., and uniform dispersion are achieved, enabling the inclusion of 50% by weight or more of recycled resin compounds in recycled products.
実施例 3  Example 3
[0050] リファインバース株式会社製 TCB-500(前述の再生榭脂コンパゥンド)を同社製二軸 内外筒回転式切削加工機により、更に平均 mの粒径に細粒ィ匕し (TCB-200)、 重量比で該細粒子 100部に対し、塩ビペースト榭脂 (新第一塩ビ (株)製 P-21 00部 を配し、前述の高速回転混合機 (攪拌混合槽 10)にて攪拌混合の上、 135°Cまで昇 温させ、半溶融化後、冷却槽 20で攪拌しながら冷却して、顆粒ィ匕した (図 6)。該複合 顆粒 (改質再生榭脂コンパゥンド)の粒径は平均 150 mであった (図 7)。これは、バ 一ジン樹脂との配合による再生複合榭脂コンパウンドの改質を実現する新しい手法 である。なお、顆粒ィ匕は攪拌混合槽 10内で起っていた。したがって、攪拌しながらの 冷去卩は顆粒ィヒにとつて必須ではな 、。  [0050] TCB-500 manufactured by Refineverse Co., Ltd. (the above-mentioned reclaimed resin compound) was further refined to an average particle size of 2 m using the company's twin-shaft inner / outer cylinder rotary cutting machine (TCB-200). In addition, to 100 parts of the fine particles by weight ratio, vinyl paste paste (P-21 00 made by Shin Daiichi PVC Co., Ltd.) was placed and stirred and mixed in the high-speed rotary mixer (stirring and mixing tank 10) described above. The mixture was heated to 135 ° C, and after semi-melting, the mixture was cooled with stirring in the cooling bath 20 and granulated (Fig. 6) The particle size of the composite granule (modified regenerated resin compound) (Fig. 7) This is a new method to improve the regenerated composite resin compound by blending with virgin resin. Therefore, stirring with cold stirring is not essential for granules.
[0051] 前項再生塩ピコンパウンド TCB-200 (50部）とバージン塩ビペースト榭脂 P-21 (50 部)からなる再生改質複合榭脂コンパウンドを、可塑剤 (DOP 00部中に、常温にて 混入して、公知のプレンダ一にて攪拌混合した。その結果、図 8に示す通り、均一な 分散が認められた。  [0051] The regenerated modified composite resin compound consisting of the regenerated salt pico compound TCB-200 (50 parts) and the virgin PVC paste resin P-21 (50 parts) is used as a plasticizer (in DOP 00 parts at room temperature). After mixing, the mixture was stirred and mixed with a known renderer, and as a result, uniform dispersion was observed as shown in FIG.
[0052] 従来、再生塩ビ榭脂の粉体品は、粉体ィ匕したそのままの状態では、塩ビペーストゾ ル中に殆ど分散せず「ママコ」や「ダマ」を生ずるなど、均一分散が困難であるとされ ていた。 [0053] そのため、特開 2004-113385号公報で試みられているように、複数の再生粉砕品（ 再生榭脂コンパゥンド)の投入槽で混合し、時間差を設けて順次コーターに投入して ノ ッキング層を形成する手法により、増粘防止対策を実施している。 [0052] Conventionally, a powdered product of recycled PVC resin has been difficult to uniformly disperse, such as “Mamako” and “Dama”, which is hardly dispersed in the vinyl chloride paste when it is in a powdered state. It was supposed to be. [0053] Therefore, as attempted in Japanese Patent Application Laid-Open No. 2004-113385, mixing in a charging tank of a plurality of regenerated pulverized products (recycled resin compound), adding them to a coater sequentially with a time difference, and knocking Measures to prevent thickening are implemented by the method of forming a layer.
[0054] し力しながら、そのような対策を施しても、再生粉砕品（再生榭脂コンパゥンド)の利 用率は、ノ ッキング層全体の 20重量 %以下（実用的には数％)にすぎず、再生塩ビ粉 体品の利用に限界があった。  [0054] However, even if such measures are taken, the usage rate of recycled pulverized products (recycled resin compound) is 20% by weight or less (practically several%) of the entire knocking layer. However, the use of recycled PVC powder was limited.
[0055] 本発明のように、平均粒径 200 μ m程度に細粒子化された再生塩ビ粉体 (再生榭脂 コンパウンド)を、さらにバージン榭脂と攪拌混合の上半溶融状態にした後、必要に 応じて冷却することにより顆粒化する手法は、混練り効果によるさらなる細粒化と、バ 一ジン樹脂のコーティング効果により、可塑剤や希釈剤、充填剤などとの親和性の向 上や均一分散を実現し、リサイクル品への再生塩ビ粉体品の 50重量％以上の混入を 可能とする。もちろん、この様にして顆粒ィ匕した改質再生榭脂コンパゥンドに対して塩 ビペースト (塩ビペースト榭脂 +可塑剤）を混合しても良好な再生塩ビペーストが得ら れる。  [0055] As in the present invention, after the regenerated PVC powder (regenerated rosin compound) finely divided to an average particle size of about 200 μm is further mixed with virgin rosin in an upper half melt state, The method of granulating by cooling as necessary is to improve the affinity with plasticizers, diluents, fillers, etc. by further fine-graining by kneading effect and coating effect of virgin resin. Uniform dispersion is achieved, and more than 50% by weight of recycled PVC powder can be mixed into recycled products. Of course, a good recycled PVC paste can also be obtained by mixing PVC paste (PVC paste resin + plasticizer) with the modified recycled resin compound thus granulated.
実施例 4  Example 4
[0056] 廃棄物由来の複合榭脂製品の微粉体ィ匕においては、炭酸カルシウムや二酸ィ匕チ タン等の充填物が副生する。例えば、廃タイルカーペットの塩ビバッキング層を特開 2 003— 088772号公報にて示す切削加工機において平均粒径 500 μ mレベルに粉 体化する場合、 100 m以下の炭酸カルシウムが、全粉体品重量の約 5〜10%分離 副生する。具体的には、例えば、切削粉を 100 mの篩で分離した場合の篩下成分 がこの充填物となる。  [0056] In the fine powder of composite resin products derived from waste, fillers such as calcium carbonate and titanium dioxide are by-produced. For example, when the vinyl chloride backing layer of a waste tile carpet is pulverized to an average particle size of 500 μm using a cutting machine disclosed in Japanese Patent Laid-Open No. 2003-088772, calcium carbonate of 100 m or less Separation of about 5-10% of product weight. Specifically, for example, the sieving component when the cutting powder is separated by a 100 m sieve becomes this filling.
[0057] 前述の副生充填物である炭酸カルシウム中には、 100 mのふるいを通過したガラ ス繊維や塩ビ榭脂粉体が含まれており、それぞれが単離した状態で混合している。  [0057] Calcium carbonate, which is a by-product filler as described above, contains glass fiber and PVC resin powder that have passed through a 100 m sieve, and these are mixed in an isolated state.
[0058] 一般的に、炭酸カルシウムを主成分とした混合粉体は、極めて飛散性が強ぐ自動 投入などの妨げとなり、再利用を困難にしている。  [0058] Generally, a mixed powder containing calcium carbonate as a main component hinders automatic charging, which is extremely scattered, and makes it difficult to reuse.
[0059] 該炭酸カルシウム等の充填剤に前述の再生塩ピコンパウンド TCB-200 (再生榭脂 コンパゥンド)を 5重量％混入して、前述の高速回転混合機 (攪拌混合槽 10)にて攪 拌混合し、 135°C〜140°C程度まで昇温させた後冷却槽 20で冷却して、再生塩ビ榭 脂によってコーティングされた炭酸カルシウム粉体 (再生無機充填剤)を得た。なお、 コーティングは攪拌混合槽 10内で起っていた。したがって、攪拌しながらの冷却はコ 一ティングにとって好まし 、が必須ではな!/、。 [0059] In the filler such as calcium carbonate, 5% by weight of the above-mentioned regenerated salt compound TCB-200 (regenerated resin compound) was mixed, and the mixture was stirred with the above-mentioned high-speed rotary mixer (stirring mixing tank 10). Mix, raise the temperature to about 135 ° C to 140 ° C, cool in cooling tank 20, and recycle PVC A calcium carbonate powder (regenerated inorganic filler) coated with fat was obtained. The coating occurred in the stirring and mixing tank 10. Therefore, cooling with stirring is preferred for coating, but is not essential!
[0060] 該改質炭酸カルシウム粉体 (再生無機充填剤）は、図 8に示した通り、明らかに粒形 状の改善が認められ、該粉体品は生産工程において、投入の自動化に対し適応可 能となる。  [0060] As shown in Fig. 8, the modified calcium carbonate powder (recycled inorganic filler) clearly shows an improvement in the particle shape, and the powder product is less susceptible to automation of the input in the production process. Adaptable.
[0061] なお、再生塩ピコンパウンドに代えて、バージン榭脂や、複数種の再生榭脂コンパ ゥンドの混合物等の他の榭脂粉を加えても良ぐまた、安定剤、滑剤等を任意の組合 せで添加することができる。  [0061] It should be noted that other rosin powder such as virgin rosin and a mixture of a plurality of types of regenerated rosin compounds may be added in place of the regenerated salt pico compound, and stabilizers, lubricants, etc. may be added as desired. Can be added in combination.
[0062] 以上本発明を実施例に基づいて説明したが、本発明は上述の記載内容に限定さ れるものではない。  [0062] Although the present invention has been described based on the embodiments, the present invention is not limited to the above description.
[0063] 例えば、上述の実施例に係る攪拌 ·混合は、上述の高速回転混合機以外にも種々 の攪拌装置や混練装置を用いて行うことができる。例えば、容器内に水平回転軸周 りを回転する攪拌羽を設けた攪拌装置でも実施は可能である。  For example, the stirring and mixing according to the above-described embodiments can be performed using various stirring devices and kneading devices other than the above-described high-speed rotary mixer. For example, the present invention can also be implemented with a stirring device provided with stirring blades that rotate around a horizontal rotation axis in a container.
[0064] また、上述では、廃タイルカーペットのバッキング層を切削した再生榭脂コンパゥン ドを用いている力 長尺塩ビ床シート、塩ビホモジニァスタイル、塩ビ壁紙の表面榭 脂層、土木用遮水塩ビシート、防音塩ビシート等の他の塩ビ廃材を切削した再生榭 脂コンパゥンドを用いても良ぐまた、塩ビ系榭脂廃棄物以外でも、例えば、ォレフィ ン系榭脂等の複合熱可塑性榭脂廃棄物を切削した再生榭脂コンパゥンドでもよい。 なお、塩ビ系榭脂廃棄物は、通常、塩ビ榭脂、可塑剤、及び、充填剤を含む場合が 多い。  [0064] Further, in the above description, the power using a recycled resin compound obtained by cutting the backing layer of the waste tile carpet, the long PVC floor sheet, the PVC homogenized style, the surface resin layer of the PVC wallpaper, and the water shielding for civil engineering. Recycled resin compound obtained by cutting other PVC waste materials such as PVC sheet and soundproof PVC sheet may be used. Also, other than PVC resin waste, for example, composite thermoplastic resin such as polyolefin resin. It may be a recycled resin compound obtained by cutting waste. In addition, the vinyl chloride resin waste usually contains a PVC resin, a plasticizer, and a filler in many cases.
[0065] 塩ビ系榭脂廃棄物以外の複合熱可塑性榭脂物を切削した再生榭脂コンパゥンドを 上述のように顆粒化した再生改質榭脂コンパゥンドも、可塑剤や、当該榭脂成分と可 塑剤とを混合した榭脂ペーストゾルとの混合性が高い。  [0065] A regenerated modified resin compound obtained by granulating a recycled resin compound obtained by cutting a composite thermoplastic resin other than a PVC resin resin waste as described above is also usable with a plasticizer and the resin component. High mixability with rosin paste sol mixed with plasticizer.
[0066] また、上記の各実施例では、複合榭脂廃材を切削法により 500 μ m以下に微粉ィ匕 した再生榭脂コンパゥンドを使用しているが、切削法でなぐ例えば、回転ボールミル 法により 500 m以下に粉体ィ匕した再生榭脂コンパウンドを用いてもよい。  [0066] Further, in each of the above-described embodiments, a recycled resin compound is used in which the composite resin waste is finely powdered to 500 μm or less by a cutting method. Recycled resin compound powdered to 500 m or less may be used.
[0067] また、上記の各実施例において、複合熱可塑性榭脂廃棄物をあらかじめ粒径 500 μ m以下に微粉ィ匕して得た再生榭脂コンパゥンドは、 1種でなく複数種混合して用い てもよい。例えば、互いに異なる塩ビ系榭脂廃棄物を微粉ィ匕して得た再生榭脂コン ノゥンド同士を混合しても良ぐまた、塩ビ系榭脂廃棄物由来の再生榭脂コンパゥン ドと、塩ビ系榭脂廃棄物以外のブレンド榭脂系廃棄物由来の再生榭脂コンパゥンドと を混合しても良い。ブレンド榭脂系廃材としては、例えば、塩化ビニル及び酢酸ビ- ルの共重合体に可塑剤や充填剤等の添加剤を加えた廃材や、塩化ビニルとアクリル 榭脂との混合樹脂に可塑剤や充填剤を加えた廃材が挙げられる。 [0067] In each of the above embodiments, the composite thermoplastic resin waste is preliminarily treated with a particle size of 500 Regenerated resin compound obtained by finely pulverizing to μm or less may be used in combination of multiple types. For example, recycled resin components obtained by pulverizing different PVC resin wastes may be mixed together. Also, recycled resin compounds derived from PVC resin wastes and PVC You may mix with the blended non-waxed waste non-waxed waste-based recycled fat compound. Examples of blended resin waste materials include waste materials in which additives such as plasticizers and fillers are added to copolymers of vinyl chloride and vinyl acetate, and plasticizers in mixed resins of vinyl chloride and acrylic resin. And waste materials with fillers added.
[0068] また、上述のように、半溶融化状態に到達した後、攪拌しながら冷却することは必須 でなぐ攪拌しないで冷却してもよぐ積極的な冷却をすることなく自然放熱させても、 本発明の実施は可能である。 [0068] Further, as described above, after reaching the semi-molten state, it is essential to cool with stirring, and it is possible to cool without stirring. However, it is possible to implement the present invention.
産業上の利用可能性  Industrial applicability
[0069] 本発明は、廃棄物由来の複合榭脂製品を粉体化し、再資源化する上で、特に微粉 体品の操作条件、すなわち、該粉体品の付着防止性、発塵防止性、粒径の均一性、 流動性の向上及び高密度化などを実現したことにより、これら粉体品の再利用の可 能性を大きく促進する。 [0069] The present invention provides a powdered composite waste product derived from waste, and in particular, operating conditions of the fine powder product, that is, the adhesion prevention property and dust generation prevention property of the powder product. In addition, the improvement in particle size uniformity, fluidity, and density has greatly promoted the possibility of reusing these powder products.

Claims

請求の範囲 The scope of the claims
[I] 複合熱可塑性榭脂廃棄物をあらかじめ粒径 500 μ m以下に微粉ィ匕して得た一もしく は複数種の再生榭脂コンパゥンドを、前記再生榭脂コンパゥンドが半溶融状態にな るまで攪拌'混合することにより顆粒化させる再生改質榭脂コンパゥンドの製造方法。  [I] One or more types of reclaimed resin compound obtained by pre-grinding composite thermoplastic resin waste to a particle size of 500 μm or less, and the regenerated resin compound is in a semi-molten state. A method for producing a regenerated modified resin compound that is granulated by mixing until stirring.
[2] 前記顆粒化した粉体をさらに攪拌しながら冷却する請求項 1に記載の再生改質榭 脂コンパゥンドの製造方法。  [2] The method for producing a regenerated modified resin compound according to claim 1, wherein the granulated powder is further cooled with stirring.
[3] 複合熱可塑性榭脂廃棄物をあらかじめ粒径 300 /z m以下に微粉ィ匕した一もしくは 複数種の再生榭脂コンパゥンドを用いる請求項 2に記載の再生改質榭脂コンパゥン ドの製造方法。  [3] The method for producing a regenerated modified resin compound according to claim 2, wherein one or a plurality of types of regenerated resin compound obtained by finely pulverizing composite thermoplastic resin waste in advance to a particle size of 300 / zm or less are used. .
[4] 前記複合熱可塑性榭脂廃棄物が塩ビ系榭脂廃棄物である請求項 1〜3のいずれ 力に記載の再生改質榭脂コンパゥンドの製造方法。  4. The method for producing a regenerated modified resin composition according to any one of claims 1 to 3, wherein the composite thermoplastic resin waste is a vinyl chloride resin waste.
[5] 前記塩ビ系榭脂廃棄物が、塩ビ榭脂、可塑剤、及び、充填剤を含む請求項 4に記 載の再生改質榭脂コンパゥンドの製造方法。 [5] The method for producing a regenerated modified resin composition according to claim 4, wherein the PVC resin waste contains a PVC resin, a plasticizer, and a filler.
[6] 前記塩ビ系榭脂廃棄物が、タイルカーペットの裏面塩ビバッキング層、長尺塩ビ床 シート、塩ビホモジニァスタイル、塩ビ壁紙の表面榭脂層、土木用遮水塩ビシート、 及び、防音塩ビシートから構成される群の内の少なくとも 1つである請求項 4に記載の 再生改質榭脂コンパゥンドの製造方法。 [6] The above-mentioned PVC-based resin waste is a back surface PVC backing layer of a tile carpet, a long PVC floor sheet, a PVC homogenized style, a surface resin layer of a PVC wallpaper, a water-proof PVC sheet for civil engineering, and a soundproof salt. The method for producing a regenerated modified resin compound according to claim 4, wherein the method is at least one member selected from the group consisting of bi-sheets.
[7] 前記再生榭脂コンパゥンドに対して、さらにバージン榭脂、安定剤、可塑剤、希釈 剤、溶剤、及び、充填剤カゝらなる群カゝら選択される少なくとも 1つを加えて、前記攪拌[7] The regenerated resin compound is further added with at least one selected from the group consisting of virgin resin, stabilizer, plasticizer, diluent, solvent and filler. Agitation
•混合をする請求項 1〜6のいずれかに記載の再生改質榭脂コンパゥンドの製造方 法。 • The method for producing a regenerated modified resin compound according to any one of claims 1 to 6, wherein mixing is performed.
[8] 前記再生改質榭脂コンパゥンドは前記再生榭脂コンパゥンドを 50重量 %以上含む 請求項 1〜7のいずれか記載の再生改質榭脂コンパゥンドの製造方法。  8. The method for producing a regenerated / modified resin compound according to any one of claims 1 to 7, wherein the regenerated / modified resin compound contains 50% by weight or more of the regenerated resin compound.
[9] 請求項 1〜8の製造方法により製造した再生改質榭脂コンパゥンドと、榭脂ペースト ゾルとを混合する、再生榭脂ペーストゾルの製造方法。  [9] A method for producing a reclaimed resin paste sol, wherein the regenerated modified resin compound produced by the production method according to any one of claims 1 to 8 and a resin paste sol are mixed.
[10] 前記複合熱可塑性榭脂廃棄物が塩ビ系榭脂廃棄物であり、前記榭脂ペーストゾル が塩ビペーストゾルである請求項 9に記載の再生榭脂ペーストゾルの製造方法。  10. The method for producing a recycled resin paste sol according to claim 9, wherein the composite thermoplastic resin waste is a PVC resin waste, and the resin paste sol is a PVC paste sol.
[II] 請求項 1〜8により製造した再生改質榭脂コンパゥンドと、可塑剤とを混合する、再 生榭脂ペーストゾルの製造方法。 [II] A regenerated modified resin compound produced according to claims 1 to 8 and a plasticizer are mixed. A method for producing ginger fat paste sol.
[12] 前記複合熱可塑性榭脂廃棄物が塩ビ系榭脂廃棄物である請求項 11に記載の再 生榭脂ペーストゾルの製造方法。 12. The method for producing a reclaimed resin paste sol according to claim 11, wherein the composite thermoplastic resin waste is a vinyl chloride resin waste.
[13] 請求項 1〜8の製造方法により製造された再生改質榭脂コンパゥンド。 [13] A regenerated modified resin compound produced by the production method of claims 1-8.
[14] 請求項 9〜12のいずれかの製造方法により製造された再生榭脂ペーストゾル。 [14] A regenerated fat paste sol produced by the production method according to any one of claims 9 to 12.
[15] 複合熱可塑性榭脂廃棄物を原料として製造された顆粒であり、平均一次粒子径が[15] Granules made from composite thermoplastic resin waste, with an average primary particle size of
1〜50 μ mであり、顆粒の平均粒子径が 10〜500 μ mである再生改質榭脂コンパゥ ンド。 Regenerated modified resin compound having an average particle size of 10 to 500 μm and a particle size of 1 to 50 μm.
[16] 前記複合熱可塑性榭脂廃棄物が塩ビ系榭脂廃棄物である請求項 15に記載の再 生改質榭脂コンパゥンド。  16. The regeneration-modified resin composition according to claim 15, wherein the composite thermoplastic resin waste is a vinyl chloride resin waste.
[17] 無機物質を充填剤として含有する複合熱可塑性榭脂廃棄物を粉体化することによ り得た充填剤に対して榭脂粉を加え、前記榭脂粉が半溶融状態になるまで攪拌'混 合を行うことにより前記充填剤を榭脂でコーティングする再生無機充填剤の製造方法  [17] Add the resin powder to the filler obtained by pulverizing the composite thermoplastic resin waste containing an inorganic substance as a filler, and stir until the resin powder is in a semi-molten state. 'A method for producing a regenerated inorganic filler in which the filler is coated with a resin by mixing.
[18] 前記コーティングされた充填材をさらに攪拌しながら冷却する請求項 17に記載の 再生改質榭脂コンパゥンドの製造方法。 18. The method for producing a regenerated modified resin compound according to claim 17, wherein the coated filler is further cooled with stirring.
[19] 前記充填剤は炭酸カルシウムである請求項 17又は 18に記載の再生無機充填剤 の製造方法。 19. The method for producing a regenerated inorganic filler according to claim 17 or 18, wherein the filler is calcium carbonate.
[20] 前記充填剤に対して 10重量 %以内の榭脂粉を添加する請求項 17〜 19の 、ずれか に記載の再生無機充填剤の製造方法。  [20] The method for producing a regenerated inorganic filler according to any one of claims 17 to 19, wherein a sesame powder of 10 wt% or less is added to the filler.
[21] 前記榭脂粉は、バージン榭脂、及び、複合熱可塑性榭脂廃棄物を粉体化して得た 再生榭脂コンパウンドの少なくとも 1つである請求項 17〜20の 、ずれかに記載の再 生無機充填剤の製造方法。 [21] The resin according to any one of claims 17 to 20, wherein the resin powder is at least one of a virgin resin and a recycled resin compound obtained by pulverizing a composite thermoplastic resin waste. A method for producing a recycled inorganic filler.
[22] 前記充填剤に対してさらに安定剤及び滑剤の少なくとも一方を添加する請求項 17[22] The stabilizer may further include at least one of a stabilizer and a lubricant.
〜21のいずれかに記載の再生無機充填剤の製造方法。 The manufacturing method of the reproduction | regeneration inorganic filler in any one of -21.
PCT/JP2005/017861 2004-09-28 2005-09-28 Process for producing reclaimed modified resin compound and reclaimed modified resin compound WO2006035820A1 (en)

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