WO2007029417A1 - 非互着性ペレット、非互着性ペレットの製造方法、およびゴム成形体の製造方法 - Google Patents
非互着性ペレット、非互着性ペレットの製造方法、およびゴム成形体の製造方法 Download PDFInfo
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- WO2007029417A1 WO2007029417A1 PCT/JP2006/313810 JP2006313810W WO2007029417A1 WO 2007029417 A1 WO2007029417 A1 WO 2007029417A1 JP 2006313810 W JP2006313810 W JP 2006313810W WO 2007029417 A1 WO2007029417 A1 WO 2007029417A1
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- 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
- B29B9/02—Making granules by dividing preformed material
- B29B9/04—Making granules by dividing preformed material in the form of plates or sheets
-
- 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
- B29B9/12—Making granules characterised by structure or composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/124—Treatment for improving the free-flowing characteristics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/126—Polymer particles coated by polymer, e.g. core shell structures
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
- C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/026—Crosslinking before of after foaming
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
Definitions
- the present invention relates to a non-interoperable pellet, a method for producing a non-interoperable pellet, a method for producing a vulcanized rubber molded article, and a method for producing a vulcanized bright sponge rubber molded article.
- a 1 consists of a process of deforming an adhesive polymer coated with a thermoplastic polymer under heat and pressure, and a process of cutting the resulting deformation.
- a method for producing the non-interoperable beret is disclosed.
- the non-adhesive pellets obtained by the production method form a mixture obtained by mixing it with a vulcanizing agent, and vulcanize the resulting molded product to produce a vulcanized rubber molded product.
- this temperature is set to a temperature lower than the temperature at which the vulcanizing agent reacts
- the thermoplastic polymer is contained in the mixture.
- the resulting vulcanized rubber molded body does not have a good surface.
- mixing at a temperature higher than the crystal melting peak temperature of the thermoplastic polymer causes the vulcanizing agent to react during mixing.
- the non-compatible pellets obtained by the production method are deformed by the pressure applied to the pellets while being filled in a container and stored, and as a result, the pellets form aggregates, Aggregates can be applied to individual non-adhesive pellets by simply pressing with a finger. It also has the problem of not separating. Disclosure of the invention
- thermoplastic polymer a thermoplastic polymer contained in a non-adhesive pellet
- the present inventors have found that the crystal melting peak temperature is less than 90 ° C and the Vicat softening temperature is higher than 40 ° C as a coating layer of non-interoperable pellets.
- the inventors have found that the above object can be achieved by using a thermoplastic polymer, and have completed the present invention.
- the present invention is a non-adhesive pellet comprising a core containing a rubber composition composed of rubber, a reinforcing material and a softening material, and a coating layer containing a thermoplastic polymer covering the core.
- the thermoplastic polymer satisfies the following conditions (1) and (2).
- the crystal melting peak temperature measured by DSC measurement method consisting of the following procedures is less than 90 ° C:
- the present invention provides a method for producing a non-interoperable pellets including the following steps.
- manufacturing method 1-1 This manufacturing method is hereinafter referred to as manufacturing method 1-1.
- the present invention provides a method for producing a non-interoperable beret including the following steps.
- a rubber composition comprising a rubber, a reinforcing material and a softening material, and a thermoplastic polymer satisfying the above conditions (1) and (2) are molded by a multilayer extrusion molding method, and the rubber composition is formed from the rubber composition. And a step of obtaining a laminated sheet consisting of the core and a coating layer made of the thermoplastic polymer;
- This production method is hereinafter referred to as production method 1-2.
- this invention provides the manufacturing method of the vulcanized rubber molded object containing the following processes.
- manufacturing method 1-3 This manufacturing method is hereinafter referred to as manufacturing method 1-3.
- this invention provides the manufacturing method of the vulcanized sponge rubber molded object containing the following processes.
- FIG. 1 shows an example of an apparatus for producing the non-interoperable pellet of the present invention.
- Figure 2 shows the pellet manufacturing equipment used in the examples.
- ethylene_one-olefin-non-conjugated copolymer copolymer rubber natural rubber
- styrene-butadiene rubber styrene-butadiene-styrene block copolymer
- SBS styrene-ethylene-butylene
- SEBS styrene block copolymer
- SIS styrene block copolymer
- SEPS styrene one ethylene one propylene one styrene block copolymer
- the ethylene-fluoroolefin-nonconjugated gen copolymer rubber means a copolymer rubber composed of an ethylene unit, an ⁇ -age olefin unit having 3 or more carbon atoms, and a nonconjugated gen unit having 5 or more carbon atoms.
- “Unit” in terms such as “ethylene unit” means a unit of polymerized monomer.
- the content of each monomer unit in the ethylene-1- ⁇ olefin-nonconjugated gin copolymer rubber can be determined according to the desired physical properties of the vulcanized rubber molded product and vulcanized sponge rubber molded product in the present invention. Good.
- Examples of the ⁇ -olefin include propylene, 1-butene, 1-pentene, 1-hexene, 4-methyl-1, 1-pentene, 1-octene, and 1-decene; and combinations of two or more thereof. Of these, propylene or 1-butene is preferable.
- Examples of non-conjugated gens include dicyclopentene, ethylidene norbornene and 1,4-hexagen; and combinations of two or more thereof.
- ethylene monoolefin-non-conjugated gen copolymer rubber Exemplified are pyrene-ethyleneidene norbornene copolymer rubber, ethylene-propylene-dicyclopentene copolymer rubber, and ethylene-propylene-ethylidenenorbornene-dicyclopentene copolymer rubber; and combinations of two or more thereof. be able to.
- Ethylene monoolefin-non-conjugated gen copolymer rubber is a known olefin synthesis catalyst (for example, such as Thidarah-Natta catalyst, and meta-ortho- and non-meta-orcene complexes). It can be produced by a known polymerization method using a complex catalyst (for example, slurry monopolymerization method, solution polymerization method, bulk polymerization method and gas phase polymerization method).
- a complex catalyst for example, slurry monopolymerization method, solution polymerization method, bulk polymerization method and gas phase polymerization method.
- Reinforcing materials in the present invention include inorganic fillers such as calcium carbonate, talc, my strength, silica and carbon black; reinforcements such as aramid fibers, nylon fibers, wood pulp fibers, carbon fibers, and glass fibers Short fibers for use; as well as combinations of two or more of these.
- carbon black having a high reinforcing effect is particularly preferable.
- carbon black having an average particle diameter of 50 nm or more is preferable.
- the amount of reinforcement used is usually 10 to 200 parts by weight per 100 parts by weight of rubber. If the amount used is less than 10 parts by weight, sufficient reinforcing effect cannot be obtained.
- process oil As a softening material in the present invention, process oil, lubricating oil, paraffin, fluid paraffin, petroleum asphalt, petrolatum, coal tar pitch, castor oil, flax Illustrative examples include two oils, sub-, waxy, ricinoleic acid, palmitic acid, barium stearate, calcium stearate, zinc laurate, soft polypropylene, and coumarone indene resin. Of these, process oil is particularly preferred. Examples of process oils include paraffinic oils, naphthenic oils, and aromatic oils.
- the amount of softening material used is usually 1 to 200 parts by weight per 100 parts by weight of rubber, preferably less than 150 parts by weight, particularly preferably 100 parts by weight or less.
- the amount used exceeds 200 parts by weight, it is not preferable from the viewpoint of the stress relaxation viscosity described later of the rubber composition.
- the amount of the softening material contained in the oil-extended rubber shall be included in the use amount of the softening material described above.
- Each of the rubber, the reinforcing material and the softening material constituting the rubber composition in the present invention includes a processing aid such as zinc oxide, stearic acid, metal soap, fatty acid ester, fatty acid amide, and paraffin wax; an amine-based anti-aging agent, Anti-aging agents such as phenol-based anti-aging agents, imidazol-based anti-aging agents and phosphorus-based anti-aging agents; flame retardants such as magnesium hydroxide, antimony trioxide and halogen compounds; tackifiers; or for reinforcing materials
- a processing aid such as zinc oxide, stearic acid, metal soap, fatty acid ester, fatty acid amide, and paraffin wax
- an amine-based anti-aging agent Anti-aging agents such as phenol-based anti-aging agents, imidazol-based anti-aging agents and phosphorus-based anti-aging agents
- flame retardants such as magnesium hydroxide, antimony trioxide and halogen compounds
- tackifiers or
- the crystal melting peak temperature measured by the DSC measurement method comprising the following procedures is less than 90 ° C, preferably less than 70 ° C:
- the condition (1) is a condition for satisfactorily dispersing the thermoplastic polymer in the kneaded product of the non-fixing pellets and an additive such as a vulcanizing agent.
- the condition (2) is a container. This is a condition for suppressing the formation of aggregates of non-adhesive pellets that can occur during storage and storage.
- thermoplastic polymer examples include crystalline polyolefin, polystyrene, nylon, polyester, polymethyl methacrylate, polyvinyl alcohol, polycarbonate, polyvinyl chloride, and polyvinylidene chloride. Of these, crystalline polyolefin is preferred from the viewpoint of availability and ease of processing into pellets.
- the crystalline polyolefin means a crystalline thermoplastic polymer obtained by homopolymerization or copolymerization of olefin having 2 to 20 carbon atoms (that is, a crystalline thermoplastic polymer containing the olefin unit). To do.
- propylene homopolymer As the crystalline polyolefin, propylene homopolymer; propylene monoethylene copolymer; propylene-butene-1 copolymer; propylene-ethylene monobutene-1 copolymer; low density polyethylene; medium density polyethylene; high density polyethylene
- Ethylene such as ethylene-butene-1 copolymer, ethylene-4-methylpentene-1 copolymer, ethylene-hexene-1 copolymer, ethylene-octene-1 copolymer, and ethylene-decene-1 copolymer — ⁇ — Age olefin copolymer; Ethylene monomethacrylic acid ester copolymer such as ethylene monomethacrylic acid methyl copolymer; Ethylene
- ethylene monoacrylic ester copolymer such as a methyl acrylate copolymer
- an ethylene vinyl acetate copolymer and a copolymer with ethylene such as a saponified product of the copolymer.
- These crystalline polyolefins are, / 3--unsaturated carboxylic acids (eg acrylic acid and methacrylic acid)
- carboxylic acids eg acrylic acid and methacrylic acid
- a polymer modified with an alicyclic carboxylic acid eg stearic acid
- maleic anhydride or a derivative of these acids (eg methyl methyl acrylate and sodium acrylate) Also good.
- an ethylene monofluorine copolymer obtained by polymerizing ethylene and olefins in the presence of a polymerization catalyst having a uniform active site such as a meta-octane complex / (the book is particularly preferable for the crystal
- the basic polyolefin is a known olefin polymerization catalyst (eg, Ziegler).
- Known polymerization methods for example, slurry polymerization method, solution polymerization method, etc.
- a Natta-based catalyst and a complex-based catalyst having a homogeneous active site such as a meta-orthocene complex and a non-meta-orthocene complex
- Bulk polymerization method and gas phase polymerization method or a known polymerization method using a known radical initiator (for example, a bulk polymerization method and a solution polymerization method).
- thermoplastic polymer in the present invention is composed of inorganic fillers such as calcium carbonate, talc, strength and carbon black; or antioxidants, ultraviolet absorbers, antistatic agents, pigments, nucleating agents, antifogging agents and May be combined with additives such as flame retardants. .
- the rubber composition according to the present invention comprises components such as rubber, a reinforcing material and a softening material, a closed mixer such as a burr-vari mixer, or a single screw extruder, a twin screw extruder in the same direction, It can be produced by mixing with an extruder such as a unidirectional twin screw extruder and a twin screw extruder with a multi-stage mixing zone.
- a screw extruder capable of continuously producing a rubber composition and molding a sheet made of the rubber composition is particularly preferable.
- the stress relaxation of the rubber composition in the present invention is preferably more than 0.090, more preferably 0.13 5 or more, from the viewpoint of suppressing the formation of non-adherent pellet aggregates. If the stress relaxation is 0.0 9 0 or less, the container is filled and stored. In the meantime, the non-attachable pellets are easily deformed, and as a result, aggregates are easily formed.
- a method for producing a rubber composition having a stress relaxation of greater than 0.090 (1) In the case of a rubber composition having the same rubber type and blending ratio, the blending ratio of reinforcing material and Z or softening material (2) Select a rubber composition with the same blending ratio of reinforcing material and softening material per 100 parts by weight of rubber, or a rubber with high stress relaxation, or A production method using a rubber whose viscosity is appropriately adjusted can be exemplified.
- the Mooney viscosity ML 1 +4 (100 ° C.) of the rubber composition in the present invention is such that a rubber composition having a high viscosity—in general, has a large stress relaxation, so that From the viewpoint of suppressing the formation of aggregates, it is preferably 36 or more.
- Mooney Viscosity ML 1 + 4 (1 0 0 ° C) is a production method of a rubber composition of 3 or more.
- vulcanizing agents in the present invention include xio and organic peroxides.
- Organic peroxides include dicumyl peroxide, 2,5-dimethyl-2,5-di (tert-butylperoxy) hexane, 2,5_dimethyl-2,5-di (benzoylberoxy) hexane, 2,5 —Dimethyl-2,5— (tert-butylperoxy
- 3,5-Trimethylcyclohexane and tert-butyl hydroperoxide can be illustrated. Of these, dicumyl peroxide, di-tert-butyl peroxide, or di-tert-butyl peroxide 3,3,5-trimethylcyclohexane is particularly preferable.
- the amount of vulcanizing agent used is usually 1 to 100 parts by weight of rubber. 10 parts by weight, preferably 0.2 to 8 parts by weight.
- the vulcanizing agent may be combined with a vulcanization accelerator.
- Vulcanization accelerators include tetramethyl thiuram monosulfide, tetramethyl thiuram disulfide, tetraethyl thiuram monosulfide, dipentamethylene thiuram disulfide, dipentamethylene thiuram tetrasulfide, N, N '—dimethyl-N , N '— Diphenylthiuram disulfide, N, N' — Dioctadecyl N, N '— Diisopropylthiuram disulfide, N-cyclohexyl— 2-benzothiazo-rusulfenamide, N-oxydiethylene-1, 2-benzothiazool— Sulfenamide, N, N-diisopropyl-2-benzothiazolsulfenamide, 2-mercaptobenzothiazole, 2- (2,4-dinitrophen
- the amount of vulcanization accelerator used is usually from 0.05 to 20 parts by weight, preferably from 0.1 to 8 parts by weight, based on 100 parts by weight of rubber.
- the foaming agent in the present invention sodium bicarbonate, sodium carbonate, ammonium bicarbonate, ammonium carbonate, ammonium nitrite, N, N′-dimethyl N,
- N'-dinitroso-terephthalamide N, N, mono-dinitrosopentamethylene-tetramine, azodicarbonamide, azobisisoptyronitrile, azosic mouth hexyl nitrile, azodiaminobenzene, barium muazo dicarboxy Rate, benzene monosulfur dihydrazide, toluene-sulfo diluhydrazide, toluene-sulfo diluhydrazide derivatives, P-toluene monosulfur disulfide carbazide, 4,4 'monooxybis (benzenesulfonyl hydrazide), diphenyl sulfone- 3,3 'monodisulfonyl-hydrazide, calcium azide, 4,4'-diphenylsulfonyl diazide rosetoluene-1, malonyl azide, P
- the amount of foaming agent used is usually 0.5 to 20 parts by weight per 100 parts by weight of rubber.
- Examples of the sheet forming die in the step (I) of the production method 11 include a slit die and a circular die.
- Known methods such as the T-die method and the inflation method can be exemplified as a method for producing a film made of a thermoplastic polymer in the step (i) of production method 11.
- the thickness of the film is generally about 1 to 500 mm, preferably about 5
- the film is produced by a known method such as a tenter stretching method or a tubular stretching method, such as a uniaxially stretched film or a biaxially stretched film (for example, a sequential biaxially stretched film and a simultaneous biaxially stretched film).
- a stretched film may be used.
- the film is also a multilayer film manufactured by methods such as coextrusion and lamination There may be.
- a method for producing a laminated sheet in step (H) of production method 1-1 a method of laminating a film made of a thermoplastic polymer on both surfaces of a sheet formed by an extruder having a sheet forming die, and at least Examples thereof include a method of continuously bonding a film made of a thermoplastic polymer on both surfaces of a sheet of a rubber composition continuously formed by a calender roll made of two heating rolls.
- the size of the heating roll is not particularly limited, and the length of the roll surface and the diameter of the roll can be arbitrarily selected.
- the surface of the heating roll may be either mirror finish or rough finish. The distance between the surfaces of the heating roll may be appropriately adjusted according to the thickness of the sheet.
- the temperature of the heating roll is preferably about 30 ° C to 150 ° (:, more preferably about 40 ° C to 100 ° C.
- the heating shortage is eliminated.
- Examples of the method include a method using a heating roll having a large diameter, a method using at least three heating rolls, and a method for supplying a preheated rubber composition.
- the thickness of the laminated sheet in step (i) of production method-1 is preferably about 0.5 mm to 10 mm, more preferably about 0.8 mm to 5 mm.
- the laminated sheet having the rubber composition as the core and the thermoplastic polymer as the coating layer in the step (I) of the production method 1-2 can be produced by a multilayer extruder having a slit die or a circular die. it can.
- the multilayer extrusion molding method is particularly preferable because the production of the rubber composition and the production of the laminated sheet can be continuously performed by the same multilayer extrusion molding machine.
- the thickness of the coating layer is usually about 1 to 500 im, preferably about 5 to 300 m or less, more preferably about 10 to 100 m or less.
- the thickness of the laminated sheet is preferably about 0.5 mm to 10 mm, more preferably about 0.8 mm to 5 mm.
- Step 1 of manufacturing method 1 ( ⁇ ) and Step 2 of manufacturing method 1 ( ⁇ ), that is, a laminated The process of cutting the sheet to obtain a non-interoperable pellet will be described below with reference to FIG. 1 showing an example of an apparatus for producing the non-interoperable pellet of the present invention.
- the non-adhesive pellet is formed by heating a laminated sheet to about 30 to 150 ° C., pressurizing and deforming a portion to be cut of the heated laminated sheet, and then cutting the portion. Therefore, it is manufactured.
- the laminated sheet is produced by an extrusion method as in Production Method 1-2
- the temperature of the laminated sheet immediately after production is usually about 30 to 150 ° C. After pressurizing and deforming the part of the sheet to be cut, it may be cut.
- a method of heating a laminated sheet of less than about 30 ° C. to about 30 to 15 O a method in which the laminated sheet is passed between heating rollers, or a laminated sheet 1 as shown in FIG. A method of heating with the heater 3 arranged at the bottom can be exemplified.
- Method (1) is a method in which the part to be cut is gradually pressed with a cutting blade, the cutting blade is pushed into the laminated sheet, and then further pressed and cut. Since the film made of the thermoplastic polymer is stretched by the indentation, the film approaches the film made of the other thermoplastic polymer.
- the reduction rate of the thickness of the laminated sheet by the indentation is preferably about 10 to 30%, where the original thickness is 100%.
- the cut surface is almost covered with a film made of a thermoplastic polymer, and only a small percentage of the cut surface is exposed to the rubber composition. If the pressing is not performed gradually, that is, if the laminated sheet is cut at a high pressure at once, the laminated sheet is cut before it is preferably deformed, and the cut surface is not covered with a film made of a thermoplastic polymer. It will be enough. On the other hand, if the indentation is too slow, the cut surface is not sufficiently covered with the film made of the thermoplastic polymer. Therefore, the indentation is a film made of a thermoplastic polymer. It is preferably performed under pressure so as to approach each other.
- the press with the cutting blade may be a press that cuts the laminated sheet after it is continuously and gradually deformed (one-stage method), or initially a press that gradually deforms the laminated sheet. Then, it may be a pressure to cut the laminated sheet (two-stage method).
- the degree and speed of pressurization may be determined by testing in advance according to the type of laminated sheet.
- the method (2) is the method illustrated in FIG.
- Laminated sheet 1 is heater 3
- the shape and size of the non-adhesive pellets of the present invention are not particularly limited, but from the viewpoint of quantitatively supplying the non-adhesive pellets to the molding apparatus, it is preferable that the coating layers having a substantially rectangular shape are formed on the upper and lower surfaces.
- the thickness from the upper surface to the lower surface is preferably about 0.5 mm to 10 mm, more preferably about 0.8 mm to 5 mm, and the length of one side of the square is about It is a pellet of 2 mm to 10 mm.
- an inorganic fine powder or an organic fine powder in an amount sufficient to improve the non-sticking property on the surface of the non-sticking pellet.
- the body may be dusted or a liquid deposition agent may be applied.
- Fine powders or anti-coating agents applied to the non-interpenetrating pellets that are not coated with a coating layer containing a thermoplastic polymer contribute to the improvement of the non-interoperability.
- fine powder calcium carbonate
- Nonionic surfactant as liquid deposition preventive
- step (I) of production method 1-3 and in step (I) of production method-4 the mixing is carried out by using a conventional mixer such as a roll and a binder, and the progress of the crosslinking reaction with the vulcanizing agent. Usually, it is performed at a temperature of less than 90 ° C for a sufficient mixing time.
- a conventional mixer such as a roll and a binder
- the molding method in the step (ii) of the production method 1 and the step (ii) of the production method 1 include a hot press molding method, an injection molding method, a compression molding method and an extrusion molding method.
- step (ii) of production method 1-3 and step (ii) of production method 1-4 the molded product obtained in each step (ii) is converted into a vulcanizing device such as a hot-air vulcanizer and a high-frequency vulcanizer. Is a step of heating at about 1 to 60 ° C., usually 1 to 20 ° C. or more, and preferably 1 to 40 ° C. to 2400 ° C.
- step (I) mixing
- step ( ⁇ ) molding
- step ( ⁇ ) vulcanization or vulcanization
- foaming can be carried out continuously, which is a preferred method.
- the vulcanized rubber molded body and vulcanized sponge rubber molded body in the present invention are particularly preferable for automotive parts such as glass run channels, door seal sponges and weather strips; or for building material parts such as gaskets. Used.
- Example 1 The present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.
- Example 1
- the product name is Rikiichi Bon Black Asahi 50HG with an average particle size of 85 nm carbon black (reinforcing material) 100 parts by weight and Shiraishi Calcium Co., Ltd.
- product name is Whiten S SB calcium carbonate (reinforcing material) 30 weights , 80 parts by weight of paraffin process oil (softening material) with the product name PS 430 manufactured by Idemitsu Kosan Co., Ltd., 7 parts by weight of zinc oxide (processing aid), 1 part by weight of stearic acid (processing aid), A rubber made by mixing 2 parts by weight of a processing aid made by Structol, Inc. with the name of STRACTOL WB 16 and kneading for 5 minutes at a rotor speed of 6 O rpm with a 1.5 liter Banbury mixer. A composition was obtained.
- the rubber composition was molded using a press molding machine heated to 105 ° C. to prepare a sheet having a thickness of 150 mm ⁇ 15 Omm ⁇ 3 mm.
- the punched laminated sheet was rotated 90 degrees on the same plane and punched further (second punching) to obtain a rectangular parallelepiped non-adhesive pellet with a size of 1. OmmX 1 OmmX 3 mm (thickness) .
- the punching is performed by an air cylinder 10 in which a straight, continuous (that is, straight, continuous) cutting blade 1 1 placed from the front of the figure to the back is stacked on a punching table 13. By pushing against sheet 12 was done.
- the sponge 14 is continuously arranged from the front to the back of the figure in order to prevent the sheet or pellet from being sandwiched between the cutting blades 11.
- Non-adhesive pellets coated with an anti-adhesive were obtained.
- the cohesiveness of the non-adhesive pellets was “excellent”.
- Mooney viscosity ML 1 + 4 (100 ° C) measured at 100 ° C using an L-type outlet was 45.
- the mixture was extruded by a 45 mm extruder equipped with a tube die having an inner diameter of 10 mm and a wall thickness of 1.2 mm under the conditions of a die temperature of 80 ° (: cylinder temperature of 60 ° C). Obtained.
- the molded body was heated for 10 minutes in a hot air vulcanizer at 220 ° C. to obtain a tube-shaped vulcanized sponge rubber molded body.
- JISK 6268 of sponge rubber molding The density measured using a wire as a fishing jig in the underwater substitution method (Method A) was 0.56 gZcm 3 , and the appearance (visually) was satisfactory. The results are shown in Table 1.
- the above crystal melting peak temperature was measured using a differential scanning calorimeter (input compensation DSC) having a product name of DS C 220 C manufactured by Seiko Denshi Kogyo Co., Ltd., by the following procedure:
- thermoplastic polymer Hold about 8 mg of thermoplastic polymer at 150 ° C for 2 minutes;
- the agglomeration property of the non-adhesive pellets was evaluated by the following procedure: (1) 100 g of non-adhesive pellets were placed in a 50 OmL Teflon beaker;
- G202 is a long-chain branched low-density polyethylene with a crystal melting peak temperature of 107 ° C and a Bikatto softening point of 91 ° C, and a density of 919 kgZm 3 obtained by polymerizing ethylene by high-pressure polymerization. Except for the change, the procedure was carried out as in Example 1 to obtain non-adhesive pellets coated with an anti-adhesive agent. The cohesiveness of the non-adhesive pellets was “excellent”.
- Example 2 Except that the non-adhesive pellets were changed to this non-adhesive pellets and the heating temperature of the open roll was changed from 70 ° C to 110 ° C, the same procedure as in Example 1 was carried out. Got. The Mooney viscosity ML 1 + 4 (100 ° C.) of the mixture was 97.
- Example 2 The mixture was used as in Example 1 to obtain a tubular vulcanized sponge rubber molded body.
- the density of the sponge rubber molded body was 0.88 gZcm 3 , and the appearance (visually) was good with no stickiness.
- the results are shown in Table 1. Comparative Example 2
- thermoplastic polymer is made from Sumitomo Chemical Co., Ltd. under the trade name Sumikasen, the grade name is G202, the crystal melting peak temperature is 107, and the bikat softening point is 91 ° C. Except for the change, the same procedure as in Example 1 was carried out to obtain a non-adhesive pellet coated with an anti-adhesive agent.
- Example 2 A mixture was obtained as in Example 1 except that the non-interoperable beret was changed to this non-interoperable beret.
- the mixture had a viscosity of ML 1 +4 (100 ° C.) of 48.
- Example 2 The mixture was used as in Example 1 to obtain a tubular vulcanized sponge rubber molded body.
- the density of the sponge rubber molding was 0. SS gZcm 3 , and its appearance (visually) was poor.
- the results are shown in Table 1. Comparative Example 3
- thermoplastic polymer made by Sumitomo Chemical Co., Ltd. has a trade name of Exelen FX, a grade name of CX 5505, a crystal melting peak temperature of 58 ° C, a Bikatto softening point of 28 ° C, ethylene and 1-butene
- Exelen FX a trade name of Exelen FX
- grade name of CX 5505 a grade name of CX 5505
- crystal melting peak temperature of 58 ° C a crystal melting peak temperature of 58 ° C
- Bikatto softening point 28 ° C
- ethylene and 1-butene The same procedure as in Example 1 was conducted except that a linear low-density polyethylene having a density of 870 kgZm 3 was obtained by copolymerization of ⁇ Obtainable pellets were obtained.
- the cohesiveness of the non-attachable pellet was “OK”.
- a mixture was obtained as described in Example 1 except that the non-adhesive pellet was changed to this non-adhesive pellet and the heating temperature of the open roll was changed from 70 ° C to 60 ° C. .
- the Mooney viscosity ML 1 + 4 (100 ° C.) of the mixture was 43.
- Example 2 The mixture was used as in Example 1 to obtain a tubular vulcanized sponge rubber molded body.
- the density of the sponge rubber molded body was 0.54 gZcm 3 , and the appearance (visually) was good with no stickiness.
- the results are shown in Table 1. Comparative Example 4
- thermoplastic polymer film and the adhesion-preventing agent were not used, the same procedure as in Example 1 was carried out to obtain rubber composition pellets. The pellets were “poor” in cohesion.
- a mixture was obtained in the same manner as in Example 1 except that the non-adhesive pellet was changed to this pellet and the heating temperature of the open roll was changed from 70 ° C to 40 ° C.
- the Mooney viscosity ML 1 + 4 (100 ° C.) of the mixture was 44.
- Example 1 The mixture was used as in Example 1 to obtain a tubular vulcanized sponge rubber molded body.
- the density of the sponge rubber molded body was 0.54 gZcm 3 , and the appearance (visually) was good with no stickiness.
- Table 1 The results are shown in Table 1.
- Crystal melting peak temperature is not less than 90 ° C (107 ° C)
- the heating temperature of the open roll is the temperature at which the crosslinking reaction with the vulcanizing agent is likely to proceed
- the product name made by Sumitomo Chemical Co., Ltd. is esprene, grade name is 5527 F, ethylene unit content is 54.0% by weight, propylene unit content is 37.5% by weight, ethylidene norbornene
- the sum of the unit content and the dicyclopentene unit content is 8.5% by weight (the total of all monomer unit content is 100% by weight) and the Mooney viscosity ML 1 + 4 is 130 (125 Non-oil-extended ethylene-pro part at ° C)
- Asahi Rikiichi Bon trade name is Carbon Black Asahi 50HG, average particle diameter is 85 nm, and Rikiichi pump rack (reinforcing material) 100 parts by weight, Idemitsu 80 parts by weight of a paraffin process oil (softening material) manufactured by Kosan Co., Ltd.
- the rubber composition was molded using a press molding machine heated to 105 ° C. to prepare a sheet having a thickness of 150 mm ⁇ 15 Omm ⁇ 3 mm.
- Both sides of the sheet are linear low density with Sumitomo Chemical Co., Ltd. product name exeren FX, grade name CX4002, crystal melting peak temperature 68 ° C, Vicat softening point 47 ° C Polyethylene (thermoplastic polymer) thickness 40 film
- the sheet and the film were bonded using a press molding machine heated at 11 ° C. to obtain a laminated sheet.
- the laminated sheet was processed in the same manner as in Example 1 to obtain a rectangular parallelepiped non-adhesive pellet of 1 0111111 1 0] 11111 3111111 size.
- the non-adhesive pellets were dubbed into a 7-fold diluted aqueous solution of a liquid anti-adhesive agent named Seiden Chemical Co., Ltd. under New Aid DF_30 to obtain non-adhesive pellets coated with the anti-adhesive agent. It was. The cohesiveness of the non-adhesive pellets was “excellent”. The results are shown in Table 2.
- the stress relaxation of the above rubber composition was measured using a fully automatic 4-point stress relaxation meter (manufactured by Island Kogyo Co., Ltd.) with a compression strain of 20% and a measurement temperature of 40 ° C. by the following procedure:
- Example 4 The same procedure as in Example 2 was performed except that the amount of carbon black (reinforcing material) was changed to 85 parts by weight and the amount of paraffin process oil (softening material) was changed to 65 parts by weight.
- the Mooney viscosity ML 1 + 4 (100 ° C) of the rubber composition was 53, and the stress relaxation was 0.135.
- the cohesiveness of the non-adhesive pellets coated with the anti-adhesive agent was “excellent”. The results are shown in Table 2.
- Example 4 The results are shown in Table 2.
- Example 2 The same procedure as in Example 2 was performed except that the rubber was changed to rubber A and the amount of paraffin process oil (softening material) was changed to 75 parts by weight.
- the Mooney viscosity ML 1 +4 (100 ° C.) of the rubber composition was 45 and the stress relaxation was 0.094.
- the cohesiveness of the non-attachable pellets coated with the anti-adhesive agent was “good”. The results are shown in Table 2. Comparative Example 5
- Example 2 The same procedure as in Example 2 was performed except that the amount of paraffin process oil (softening material) was changed to 120 parts by weight.
- the rubber composition had a Mooney viscosity ML 1 +4 (100 ° C.) of 25 and a stress relaxation of 0.090.
- the cohesiveness of the non-adhesive pellets coated with the anti-adhesive was “good”. The results are shown in Table 2.
- Example 2 From Example 2, Example 3, Comparative Example 5 and Comparative Example 6 in Table 2, even if the rubber type and blending ratio are the same (Esprene 5 5 2 7 F is 100 parts by weight), reinforcement It is possible to change the stress relaxation value of the rubber composition obtained by changing the blending ratio of the material and Z or the softening material. By appropriately selecting the blending ratio, the stress relaxation value can be changed from 0.090. You can make a dog. Comparative Example 7
- Tylene unit content is 51.0 wt%
- propylene unit content is 37.8 wt%
- Ethylidene norbornene unit content is 11.2% by weight (the total content of all monomer units is 100% by weight)
- Mooney viscosity ML 1 + 4 (100 ° C) is 35.
- a combination of 25 parts by weight of a propylene-ethylidene norbornene copolymer rubber and a blend rubber obtained by blending the combination with an open mouth at 80 ° C and other components The same procedure as in Example 2 was performed except that kneading.
- the blend rubber has a Mooney viscosity ML 1 +4 (121 ° C) of 75, and the resulting rubber composition has a mu-line viscosity ML 1 + 4 (100 ° C) of 36 and no stress relaxation. 084, and the cohesiveness of the non-interbonding pellets was “OK”.
- the results are shown in Table 3. Comparative Example 8
- Example 2 The same operation as in Example 2 was conducted except that the blend rubber obtained by blending with an open roll at 0 ° C. and other components were kneaded.
- the blend rubber has a viscosity of ML 1 + 4 (121 ° C) of 38, and the resulting rubber composition has a Mooney viscosity ML 1 + 4 (1 00 ° C) was 25 and the stress relaxation was 0.037, and the cohesiveness of the non-interbonding beret was “poor”.
- the results are shown in Table 3. Comparative Example 10
- Example 2 The same procedure as in Example 2 was conducted except that 100 parts by weight of Esplen 5527 F was changed to 100 parts by weight of Esplen 5214 (26 for the viscosity of MLsp 1 ⁇ 4 (121 ° C)).
- the rubber composition thus obtained had a mux-and-viscosity ML 1 + 4 (100 ° C) of 20 and a stress relaxation of 0.019, and the non-adhesive pellets were inferior in cohesion. .
- Table 3 The results are shown in Table 3.
- Example 5 As a result, it is possible to obtain non-adhesive pellets that are difficult to agglomerate.
- the product name made by Sumitomo Chemical Co., Ltd. is esprene and grade name is 505, ethylene unit content is 50.0% by weight, propylene unit content is 40.1% by weight, ethylidene norbornene unit The total monomer content is 100% by weight, and the total viscosity is 100% by weight. Viscosity of ML 1 + 4 (125 ° C) is 59. Tylidene norbornene copolymer rubber 17.6 parts by weight, and the product name made by Sumitomo Chemical Co., Ltd.
- the resulting rubber composition had a Mooney viscosity ML 1 +4 (100 ° C) of 21 and a stress relaxation of 0.1 1 1.
- the cohesiveness of the non-attachable pellets coated with the anti-adhesive agent was “good”. The results are shown in Table 4.
- Example 6 84.4 parts by weight of Esplen 600 F, Sumitomo Chemical's brand name is esprene, grade name is 606 F, ethylene unit content is 61% by weight, propylene unit content is 3 3.1 Wt%, ethylidene norbornene unit content is 5.9 wt% (total monomer unit content is 100 wt%) and Mooney viscosity ML 1 + 4 (125 ° C) is 82 , An ethylene-propylene ethylidene norbornene copolymer rubber oil-extended with extender oil (this oil-extended copolymer rubber consists of 28.6 parts by weight of extender oil and 71.4 parts by weight of the copolymer rubber) ) 82.4 parts by weight (comprising 58.8 parts by weight of the copolymer rubber and 23.6 parts by weight of the extended oil).
- the rubber composition thus obtained had a mu-vis-viscosity viscosity ML 1 +4 (100 ° C.) of 36 and a stress relaxation of 0.095.
- the cohesiveness of the non-removable pellets coated with the anti-adhesive agent was “good”. The results are shown in Table 4.
- a non-adhesive pellet in which agglomerates are difficult to form during filling and storage in a container, and the thermoplastic polymer is well dispersed in the mixture with the vulcanizing agent.
- a method for producing non-interoperable pellets is provided.
- a method for producing a vulcanized rubber molded article and a method for producing a vulcanized sponge rubber molded article, which use non-adhesive pellets are provided.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US12/065,026 US20090136758A1 (en) | 2005-09-01 | 2006-07-05 | Non-mutually-adhesive pellet, process for producing non-mutually-adhesive pellet, and process for producing rubber molding |
CN2006800402179A CN101296972B (zh) | 2005-09-01 | 2006-07-05 | 非粘连性颗粒、非粘连性颗粒的制备方法以及橡胶成型体的制备方法 |
DE112006002297T DE112006002297T5 (de) | 2005-09-01 | 2006-07-05 | Nicht aneinander haftende Pellets, Verfahren zur Herstellung von nicht aneinander haftenden Pellets, und Verfahren zur Herstellung von Kautschuk-Formteilen |
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JP2005-253212 | 2005-09-01 | ||
JP2005253212A JP2007062255A (ja) | 2005-09-01 | 2005-09-01 | 非互着性ゴム組成物ペレット |
JP2005-286843 | 2005-09-30 | ||
JP2005286843A JP4982991B2 (ja) | 2005-09-30 | 2005-09-30 | 非互着性ゴム組成物ペレット、及びその製造方法 |
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US (1) | US20090136758A1 (ja) |
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TW200530008A (en) * | 2003-12-18 | 2005-09-16 | Sumitomo Chemical Co | Method of producing non-mutually-adhesive polymer pellet, and apparatus thereof |
EP3095914B1 (de) * | 2015-05-20 | 2021-01-27 | Sika Technology AG | Verfahren zur herstellung eines fahrbahnaufbaus |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6198736A (ja) * | 1984-06-15 | 1986-05-17 | エクソン・リサ−チ・アンド・エンジニアリング・カンパニ− | さらさらしたコ−テツドゴムペレツトの製法及びペレツト組成物 |
JPH0336015A (ja) * | 1989-07-04 | 1991-02-15 | Mitsui Toatsu Chem Inc | 反応性ホットメルト型組成物の製造加工方法およびその保存方法 |
JP2002332360A (ja) * | 2001-05-08 | 2002-11-22 | Sumika Color Kk | ゴムを芯とする多層ペレット |
JP2003048991A (ja) * | 2001-08-03 | 2003-02-21 | Sumitomo Chem Co Ltd | 多層ペレット及びその製造方法 |
JP2005199706A (ja) * | 2003-12-18 | 2005-07-28 | Sumitomo Chemical Co Ltd | 非互着性ポリマーペレットの製造方法およびその装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3669722A (en) * | 1969-06-25 | 1972-06-13 | Copolymer Rubber & Chem Corp | Free flowing pellets of uncured elastomeric material |
US4822545A (en) * | 1984-06-15 | 1989-04-18 | Exxon Research & Engineering Company | Method for making free-flowing coated rubber pellets |
US4622193A (en) * | 1984-06-15 | 1986-11-11 | Exxon Research & Engineering Co. | Method for making free flowing coated rubber pellets |
US20050042401A1 (en) * | 2003-08-08 | 2005-02-24 | Sumitomo Chemical Company, Limited | Plastic container |
TW200530008A (en) * | 2003-12-18 | 2005-09-16 | Sumitomo Chemical Co | Method of producing non-mutually-adhesive polymer pellet, and apparatus thereof |
US7820086B2 (en) * | 2005-01-04 | 2010-10-26 | Sumitomo Chemical Company, Limited | Process for producing rubber composition, process for producing vulcanized molded article of rubber composition, and process for producing vulcanized and foamed molded article of rubber composition |
-
2006
- 2006-07-05 DE DE112006002297T patent/DE112006002297T5/de not_active Withdrawn
- 2006-07-05 WO PCT/JP2006/313810 patent/WO2007029417A1/ja active Application Filing
- 2006-07-05 US US12/065,026 patent/US20090136758A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6198736A (ja) * | 1984-06-15 | 1986-05-17 | エクソン・リサ−チ・アンド・エンジニアリング・カンパニ− | さらさらしたコ−テツドゴムペレツトの製法及びペレツト組成物 |
JPH0336015A (ja) * | 1989-07-04 | 1991-02-15 | Mitsui Toatsu Chem Inc | 反応性ホットメルト型組成物の製造加工方法およびその保存方法 |
JP2002332360A (ja) * | 2001-05-08 | 2002-11-22 | Sumika Color Kk | ゴムを芯とする多層ペレット |
JP2003048991A (ja) * | 2001-08-03 | 2003-02-21 | Sumitomo Chem Co Ltd | 多層ペレット及びその製造方法 |
JP2005199706A (ja) * | 2003-12-18 | 2005-07-28 | Sumitomo Chemical Co Ltd | 非互着性ポリマーペレットの製造方法およびその装置 |
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US20090136758A1 (en) | 2009-05-28 |
DE112006002297T5 (de) | 2008-07-24 |
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