WO2015060242A1 - 脂環構造含有重合体からなる繊維、およびその製造方法 - Google Patents
脂環構造含有重合体からなる繊維、およびその製造方法 Download PDFInfo
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- WO2015060242A1 WO2015060242A1 PCT/JP2014/077826 JP2014077826W WO2015060242A1 WO 2015060242 A1 WO2015060242 A1 WO 2015060242A1 JP 2014077826 W JP2014077826 W JP 2014077826W WO 2015060242 A1 WO2015060242 A1 WO 2015060242A1
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- cyclic olefin
- fiber
- polymer
- norbornene
- olefin polymer
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/30—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
-
- 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
- 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
- B29B9/16—Auxiliary treatment of granules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F232/00—Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
- C08F232/08—Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system having condensed rings
-
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
-
- 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
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/38—Polymers of cycloalkenes, e.g. norbornene or cyclopentene
Definitions
- the present invention relates to a fiber comprising an alicyclic structure-containing polymer and a method for producing the same.
- Patent Document 1 describes a fibrous molded article obtained by spinning a polymer having a melting point. The examples of this document also describe spinning at a spinning speed of 200 m / min or faster.
- the glass transition temperature is 70 ° C. or higher, and it is made of a cyclic olefin polymer containing at least 40 mol% of cyclic olefin, and has excellent heat resistance, chemical stability, strength, and processability to a nonwoven fabric.
- Patent Document 3 a method of pelletizing a powder (resin powder) of a cyclic olefin polymer such as a copolymer of ethylene and a cyclic olefin.
- Patent Document 4 a method of melting using an extruder and pelletizing using a pelletizer.
- the present inventors examined spinning using pellets obtained from a resin powder of a cyclic olefin polymer and heat treating to obtain fibers. As a result, it was found that when the spinning speed (also called take-up speed, winding speed, etc.) is increased, the fiber may break during spinning. Therefore, the present invention has an object to provide a fiber that greatly reduces the burning failure of the obtained molded body and does not cause breakage even when the spinning speed is high, and a method for producing the same.
- the spinning speed also called take-up speed, winding speed, etc.
- the inventors of the present invention have made extensive studies to solve the above problems. As a result, when spinning using pellets obtained from the resin powder of the cyclic olefin polymer and obtaining the fiber by heat treatment, it was found that the cause of the fiber breaking during spinning was due to the oxidized resin foreign matter in the pellet. . Based on this finding, as a result of further studies, pellets obtained from the resin powder having a loose bulk density of 100 cc of the cyclic olefin polymer resin powder of 0.3 g / cc to 0.6 g / cc are used. In this case, it was found that the burned defects of the obtained molded body could be greatly reduced, and that the fiber was not broken even when the spinning speed was high, and the present invention was completed.
- the following (1) and (2) fibers and (3) fiber production methods are provided.
- the cyclic olefin polymer has a melting point obtained by polymerizing a monomer containing at least a norbornene-based monomer.
- the fiber according to (1) which is a cyclic olefin ring-opening polymer hydrogenated product having a repeating unit derived from a norbornene-based monomer and having a melting point.
- a pellet obtained from the resin powder having a loose bulk density of 100 cc of the cyclic olefin polymer resin powder of 0.3 g / cc to 0.6 g / cc is spun at a spinning speed of 700 m / min or more. Then, a method for producing a fiber, which is heat-treated at 150 to 220 ° C.
- the present invention it is possible to provide a fiber that significantly reduces the burning failure of the obtained molded body and that does not break even when the spinning speed is high, and a method for producing the same.
- Fiber The fiber of the present invention is obtained by spinning pellets obtained from the resin powder, in which the loose bulk density of 100 cc of the cyclic olefin polymer resin powder is 0.3 g / cc or more and 0.6 g / cc or less. It is formed by heat treatment at 220 ° C.
- the cyclic olefin polymer used in the present invention is a polymer obtained by polymerizing a monomer containing at least a norbornene-based monomer, and has a melting point.
- Cyclic olefin polymers include homopolymers of cyclic olefins, copolymers of two or more cyclic olefins, or copolymers of environmental olefins and monomers copolymerizable therewith (excluding cyclic olefins) Is mentioned.
- cyclic olefin examples include norbornene compounds and cyclic olefins other than norbornene compounds.
- the norbornene compound is not particularly limited as long as it is a norbornene ring structure-containing cyclic olefin.
- bicyclo [2.2.1] hept-2-ene (common name: norbornene), bicyclo [2.2.1] hept-2-ene derivative having a hydrocarbon substituent, bicyclo [2 having a functional group 2.1) hept-2-ene derivatives, three or more ring norbornene derivatives, three or more ring norbornene derivatives having a hydrocarbon substituent, three or more ring norbornene derivatives having a functional group, and the like.
- Cyclic olefins other than norbornene compounds include cyclobutene, 1-methylcyclopentene, 3-methylcyclobutene, 3,4-diisopropenylcyclobutene, cyclopentene, 3-methylcyclopentene, cyclooctene, 1-methylcyclooctene, 5- And monocyclic cycloolefins such as methylcyclooctene, cyclooctatetraene, 1,5-cyclooctadiene and cyclododecene.
- Monomers (excluding cyclic olefins) copolymerizable with cyclic olefins include ethylene; ⁇ -olefins such as propylene; acetylene compounds such as acetylene, propyne and 1-butyne; aromatic vinyl compounds such as styrene; And diene compounds having double bonds at both ends, such as 1,6-heptadiene.
- the cyclic olefin polymer used in the present invention is preferably a norbornene compound polymer having a melting point.
- Norbornene compound polymers having a melting point include ring-opening (co) polymers of norbornene compounds having a melting point, addition (co) polymers of norbornene compounds having a melting point, addition of norbornene compounds and ⁇ -olefins having a melting point.
- a copolymer is mentioned.
- a ring-opening (co) polymer of a norbornene compound having a melting point is preferable, and a ring-opening (co) polymer hydride of a norbornene compound having a melting point is more preferable.
- a ring-opening (co) polymer hydride of a norbornene compound having a melting point obtained by using a polycyclic norbornene-based monomer having the above ring as at least a part of the monomer.
- the polycyclic norbornene monomer having three or more rings is a norbornene monomer having a norbornene ring in the molecule and one or more rings condensed with the norbornene ring.
- tricyclo [4.3.0.1 2,5 ] deca-3,7-diene (common name: dicyclopentadiene), methyldicyclopentadiene, dimethyldicyclopentadiene and the like are used as dicyclopentadienes; tetracyclo [9.2.1.0 2,10. 0 3,8 ] tetradeca-3,5,7,12-tetraene (also referred to as 1,4-methano-1,4,4a, 9a-tetrahydro-9H-fluorene), tetracyclo [10.2.1.0 2 , 11 .
- Norbornene derivatives having an aromatic ring such as 0 4,9 ] pentadeca-4,6,8,13-tetraene (also referred to as 1,4-methano-1,4,4a, 9,9a, 10-hexahydroanthracene); Tetracyclododecenes having an unsubstituted or alkyl group such as tetracyclododecene, 8-methyltetracyclododecene, 8-ethyltetracyclododecene, 8-cyclohexyltetracyclododecene, 8-cyclopentyltetracyclododecene, etc.
- Examples of monomers that can be copolymerized with polycyclic norbornene monomers include bicyclic norbornene compounds, monocyclic olefins, cyclic dienes, and derivatives thereof that do not have a ring structure condensed to a norbornene skeleton. Can be mentioned.
- a hydrogenated product of a cyclic olefin ring-opening polymer having a melting point suitably used in the present invention is obtained by using a polycyclic norbornene monomer having three or more rings as at least a part of the monomer. It is preferable.
- the polycyclic norbornene monomer may be a norbornene compound having a norbornene skeleton and one or more ring structures condensed to the norbornene skeleton in the molecule. From the viewpoint of improving the crystallinity of the cyclic olefin ring-opening polymer hydrogenated product and particularly improving the heat resistance of the resulting molded product, it is 50% by weight or more based on the whole polycyclic norbornene monomer. Those containing dicyclopentadiene are preferably used, and dicyclopentadiene is particularly preferably used alone.
- polycyclic norbornene monomers include endo isomers and exo isomers, both of which can be used as monomers, and one isomer can be used alone.
- an isomer mixture in which endo and exo isomers are present in an arbitrary ratio can be used.
- the ratio of one stereoisomer For example, the ratio of endo-form or exo-form is preferably 80% or more, more preferably 90% or more, and particularly preferably 95% or more.
- the stereoisomer which makes a ratio high is an end body from a viewpoint of synthetic
- the method for obtaining the cyclic olefin polymer is not particularly limited.
- a norbornene-based monomer is subjected to ring-opening polymerization in the presence of a specific catalyst and then hydrogenated to obtain a cyclic olefin ring-opening polymer having a melting point.
- a method for obtaining a hydrogenated product of a coalescence Japanese Patent Laid-Open No. 2006-52333
- ⁇ -olefin such as ethylene and a norbornene monomer are polymerized in the presence of a catalyst, and hydrogenation is performed as necessary.
- a method for obtaining a copolymer of an olefin and a cyclic olefin JP-A-2-191602; According to the former method, a cyclic olefin ring-opening polymer having syndiotactic stereoregularity is obtained and hydrogenated to efficiently obtain the desired cyclic olefin ring-opening polymer hydrogenated product. Can do.
- the cyclic olefin polymer can be recovered by adding a poor solvent (usually a polar solvent such as acetone or ethanol) to the reaction solution, precipitating it, and collecting it as a solid content by solid-liquid separation.
- a poor solvent usually a polar solvent such as acetone or ethanol
- the recovered cyclic olefin polymer can be dried by a conventional method to obtain a resin powder.
- the melting point of the cyclic olefin polymer used in the present invention is preferably 200 ° C. or higher, more preferably 230 ° C. or higher, and particularly preferably 250 ° C. or higher.
- the melting point of the cyclic olefin polymer used in the present invention is within the above range, the fiber obtained therefrom exhibits excellent heat resistance.
- the weight average molecular weight (Mw) of the cyclic olefin polymer used in the present invention is preferably 10,000 or more and 1,000,000 or less, more preferably 15,000 or more and 900,000 in terms of polystyrene. Hereinafter, it is particularly preferably 20,000 or more and 800,000 or less. If the weight average molecular weight (Mw) is too low, the mechanical strength may be weakened. If the weight average molecular weight (Mw) is too high, the solution viscosity may be high and fiber formation may be difficult.
- the molecular weight distribution (Mw / Mn) of the cyclic olefin polymer used in the present invention is preferably 5 or less, and more preferably 4 or less. When the molecular weight distribution is within this range, the mechanical strength is further improved.
- various compounding agents can be added to the cyclic olefin polymer depending on its use and storage environment.
- the various compounding agents are not particularly limited as long as they are usually used in thermoplastic resin materials, such as antioxidants, ultraviolet absorbers, light stabilizers, near infrared absorbers, dyes and pigments. Examples thereof include compounding agents such as a colorant, a plasticizer, an antistatic agent, a fluorescent whitening agent, and other resins.
- antioxidants examples include phosphorus-based antioxidants, phenol-based antioxidants, sulfur-based antioxidants, and the like.
- Specific examples of antioxidants include, for example, phosphorus antioxidants such as triphenyl phosphite, diphenylisodecyl phosphite, phenyl diisodecyl phosphite, tris (nonylphenyl) phosphite, tris (dinonylphenyl) phosphite.
- Monophosphite compounds such as phenanthrene-10-oxide; 4,4′-butylidene-bis (3-methyl-6-tert-butylphenyl-di-tridecylphosphite), 4,4′-isopropylidene-bis (phenyl - di - alkyl (C 12 ⁇ C 15) phosphite) diphosphite compounds such as; -[3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetrakis-t-butyldibenzo [d, f] [1.3.2] di Oxaphosphepine, 6- [3- (3,5-di-t-butyl
- phenolic antioxidants include pentaerythrityl tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], 2,2-thio-diethylenebis [3- (3 , 5-di-t-butyl-4-hydroxyphenyl) propionate], octadecyl-3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate, 3,9-bis ⁇ 2- [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) proonyloxy] -1,1-dimethylethyl ⁇ -2,4,8,10-tetraoxaspiro [5,5] undecane, 1,3,5 And compounds such as -trimethyl-2,4,6-tris (3,5-di-t-butyl-4-hydroxybenzyl) benzene.
- sulfur-based antioxidants examples include dilauryl-3,3′-thiodipropionate, dimyristyl 3,3′-thiodipropionate, distearyl-3,3′-thiodipropionate, laurylstearyl-3,3.
- '-Thiodipropionate pentaerythritol-tetrakis- ( ⁇ -lauryl-thio-propionate, 3,9-bis (2-dodecylthioethyl) -2,4,8,10-tetraoxaspiro [5,5]
- Examples include compounds such as undecane. These can be used alone or in combination of two or more.
- the blending amount thereof is usually 0.05 to 2 parts by weight, preferably 0.05 to 1.5 parts by weight, more preferably 0.00 parts by weight per 100 parts by weight of the cyclic olefin polymer. 1 to 1 part by weight.
- the amount of the antioxidant is less than this, the heat stability of the resin composition of the present invention may be insufficient, even if it is added excessively beyond this, the hue of the resin composition molded body, There is a risk that the rate of decrease in light will deteriorate.
- the cycloolefin polymer thus obtained often has a loose bulk density of 100 cc of the polymer powder (resin powder) of less than 0.3 g / cc.
- the resin powder of the cyclic olefin polymer is subjected to pressure compression molding at a temperature lower than the melting temperature of the cyclic olefin polymer.
- a resin powder of a cyclic olefin polymer having a loose bulk density of 100 cc of 0.3 g / cc to 0.6 g / cc can be obtained.
- the melting temperature of the cyclic olefin polymer is the glass transition temperature and / or melting point, and when it has a plurality of glass transition temperatures and / or melting points, the highest temperature is the melting temperature of the present invention. .
- the melting temperature of the present invention By molding at a temperature lower than the melting temperature, fusion of the resin can be prevented.
- a pressure compression molding machine used for pressure compression molding a compressor used in the chemical industry is suitably employed, and a tableting machine or the like can also be used.
- a batch type compressor such as a press compressor that press-compresses powder into a plate shape; an extruder equipped with a die and a screen, which extrudes the powder with a screw and forms it into a strand shape Compressor (usually, then the strand-shaped formed body is cut into an arbitrary size); a roll compressor that pushes the resin powder between relatively rotating rolls and forms the strip-shaped formed body by inter-roll pressure. And the like, and the like.
- a continuous compressor is preferable from the viewpoint of productivity, and a roll compressor is particularly preferable from the viewpoint of obtaining a powder lump having a high upper pressure limit and a higher loose bulk density due to the structure of the device.
- a cyclic olefin polymer having a loose bulk density of less than 0.3 g / cc, to which various compounding agents have been added as required is compression-compressed to give a loose bulk density of 0.3 g / cc to 0.6 g / cc.
- the resin powder of a cyclic olefin polymer can be obtained.
- the method of adjusting the loose bulk density within this range by pressure compression is to adjust the pressure applied to the resin powder that has entered the pressure compression molding machine, particularly under temperature conditions that are 10 ° C. lower than the melting temperature of the resin. It is preferable to apply pressure.
- the resin powder of the cyclic olefin polymer having a loose bulk density of 0.3 g / cc or more and 0.6 g / cc or less used in the present invention has a sieve particle size from the viewpoint of filling efficiency of the lump into the hot melt molding machine.
- the component content of 0.05 mm or less is preferably 1% by weight or less.
- sieving may be performed.
- the sieving method may be performed using a classifier, and examples thereof include a method using an airflow classifier and a vibration sieving classifier.
- the resin powder of the cyclic olefin polymer having a too large sieve particle size may not be suitable for filling.
- the crushing may be performed using a crusher.
- a method using a known device such as a cutter mill, a hammer mill, a twin-screw type crusher, a pin mill type crusher, or a rotary blade type crusher can be used.
- the thus obtained resin powder of the cyclic olefin polymer having a loose bulk density of 0.3 g / cc or more and 0.6 g / cc or less is melt-molded by a hot melt molding machine.
- the hot melt molding method include known methods such as injection molding, sheet molding, blow molding, injection blow molding, inflation molding, T-die molding, press molding, extrusion molding and the like. Secondary processing molding methods such as molding can also be employed.
- a method of kneading a predetermined material using a kneader such as a heating roll, a kneader, a Banbury mixer, an extruder, cooling, pulverizing, and further performing molding by transfer molding, injection molding, compression molding, or the like is an example.
- a kneader such as a heating roll, a kneader, a Banbury mixer, an extruder, cooling, pulverizing, and further performing molding by transfer molding, injection molding, compression molding, or the like.
- T-die molding generally, a molten resin melt-kneaded by an extruder or the like passes through a T-die connected to the extruder to give a film-like molded body.
- the strand-shaped molded object obtained from a twin-screw extruder turns into the pellet-shaped molded object cut by the pelletizer after cooling with water cooling etc.
- the obtained pellet-shaped formed body is spun and then heat-treated at 150 to 220 ° C.
- the spinning method it is possible to employ general spinning methods such as melt spinning, dry spinning, and wet spinning, but melt spinning is preferred.
- melt spinning method there is no particular limitation on the melt spinning method, and a general method using an extruder may be adopted. That is, the pellet is heated and melted in the cylinder portion of the extruder, and the melt-measured cyclic olefin resin is guided to a die, and the resin is extruded from a spinning nozzle (die) and spun.
- the fiber discharged from the nozzle is taken up using a roller or the like while being cooled by cold air or the like.
- the taken-up fiber is subjected to a heat treatment (annealing) step after being wound up or as it is.
- the melting temperature (cylinder temperature) of the pellet may be set in consideration of the melting point or glass transition temperature of the cyclic olefin resin constituting the pellet.
- the temperature is usually 10 ° C. to 80 ° C. higher than the melting point, preferably 15 ° C. to 50 ° C. higher than the melting point, and has a glass transition temperature (Tg).
- Tg glass transition temperature
- the temperature is usually 60 to 180 ° C. higher than Tg, and preferably 80 to 150 ° C. higher than Tg.
- the die temperature and nozzle temperature may be set arbitrarily so as not to impair productivity.
- the resin extrusion speed is usually lower than the take-up speed. However, if the extrusion speed is too slow, the fibers become too thin and are likely to be cut. Conversely, if the extrusion speed is too high, winding tends to be difficult, so consider the nozzle hole diameter, take-up speed, and required fiber diameter. It is good to set it arbitrarily.
- the take-up speed is not particularly limited, but in the case of the fiber of the present invention, a speed of 700 m / min or more is preferable, and 700 m / min to 1500 m / min is particularly preferable.
- other fibers can be simultaneously extruded during spinning to obtain a composite fiber composed of a plurality of layers such as a core-sheath structure and a side-by-side structure.
- resins include polyamide, polyester, polyethylene, polypropylene, and acrylic resin.
- the draw ratio can be set depending on the required strength and diameter of the fiber, but is usually about 150% to 800%.
- the stretching temperature may be set in consideration of the glass transition temperature of the cyclic olefin resin constituting the pellet. In general, the temperature is 5 to 100 ° C. higher than Tg, and preferably 5 to 50 ° C. higher than Tg.
- the heat treatment step may be performed in a state where the fiber is wound up or may be performed in a yarn fiber state.
- the film can be stretched simultaneously, or can be stretched after the heat treatment.
- it is good also as an unstretched fiber which does not extend
- the heat treatment temperature is 150 to 220 ° C., preferably 160 to 200 ° C.
- the heat treatment time is 30 seconds to 60 minutes, preferably 1 minute to 30 minutes.
- the fiber of the present invention is excellent in transparency, it can be used for optical fibers such as optical fibers. Moreover, since it is excellent in heat resistance, chemical stability, strength, and processability, it can be processed into twisted yarn, woven fabric, non-woven fabric, etc., and applied to nets, ropes, fences, tire cords and the like.
- the woven fabric and nonwoven fabric of the present invention are used for clothing [clothing members (interlining, adhesive interlining, padded cotton, bra pad, shoulder pad, jumper liner), disposable clothing (event jumper, travel underwear), shoes (Shoe insoles, winter shoes, baby shoes), shoe members (insole, fishing shoes bottom), patches, gloves, slippers, hats], protective applications [protective clothes (work clothes, experimental clothes, dust-proof clothes), protective equipment (Safety shoes, work gloves, smoke mask, dust mask, gas mask)], medical use [surgical clothes, covering cloth set, pad for childbirth, cap, mask, sheets, antibacterial mat, poultice base cloth, poultice Base fabric, gibbs material, leukocyte separator, artificial skin], building use [roofing, roofing base material, tuft / carpet base fabric, anti-condensation sheet, wall covering, soundproof material, vibration-proof material, wood board, curing sheet, coating Materials], civil engineering applications [drain materials, filter materials, anti-suction materials, separation materials,
- Wiper filter [wiper, wet wiper, oil strainer, copier cleaning material, air filter (for coarse dust, medium-high performance, ultra-high performance), bag filter, liquid filter, electret filter, cleaning filter, filter Press, wastewater treatment mat, salt removal filter, gas adsorption filter], bedding [futon (futon batting, futon bag), pillow cover, sheets, blanket], agriculture / horticultural use [plastic greenhouse sheet, nursery sheet , Flat sheet, frost-proof sheet, light-shielding sheet, grass-proof sheet, horticultural planter], leather use [artificial leather base fabric, synthetic leather base fabric, PVC leather base fabric], other living materials [storage goods (storage) Bags, suit covers, insect repellent covers), packaging materials (furoshiki, packaging), cleaning supplies (chemical cloth, scourers), bags (chemical warmers, Preservative desiccant bag, shopping bag), food (tea pack, coffee pack, food pack, container), household goods (calendar, non-slip sheet, eye mask
- the measuring methods for various physical properties are as follows. (1) Molecular weight (weight average molecular weight and number average molecular weight) of cyclic olefin ring-opening polymer Using a gel permeation chromatography (GPC) system HLC-8220 (manufactured by Tosoh Corp.), an H-type column (manufactured by Tosoh Corp.) was used and measured at 40 ° C. using tetrahydrofuran as a solvent to obtain a polystyrene equivalent value. (2) Hydrogenation rate in cyclic olefin ring-opened polymer hydrogenated product: 1 H-NMR measurement.
- GPC gel permeation chromatography
- a catalyst solution was prepared. This catalyst solution was added to the reactor to initiate the ring-opening polymerization reaction. Then, it was made to react for 4 hours, keeping 52 degreeC, and the dicyclopentadiene ring-opening polymer solution was obtained.
- the number average molecular weight (Mn) and the weight average molecular weight (Mw) of the obtained dicyclopentadiene ring-opening polymer are 9,100 and 29,000, respectively, and the molecular weight distribution (Mw / Mn) obtained from these is 3.19.
- Radiolite registered trademark
- # 1500 manufactured by Showa Chemical Industry Co., Ltd.
- PP pleated cartridge filter product name “TCP-HX”, ADVANTEC Toyo Co., Ltd.
- TCP-HX PP pleated cartridge filter
- the obtained hydrogenation reaction liquid a polymer was deposited to form a slurry solution, and the polymer hydrogenation product and the solution were separated using a centrifuge.
- the obtained polymer hydrogenated product was dried under reduced pressure at 60 ° C. for 24 hours to obtain 29 parts of a crystalline dicyclopentadiene ring-opened polymer hydrogenated product.
- the loose bulk specific gravity, hydrogenation rate, racemo dyad ratio and melting point were measured.
- the loose bulk specific gravity was 0.41, the hydrogenation rate was 99% or more, and the racemo dyad ratio was 89%, the melting point.
- the loose bulk specific gravity was 0.41
- the hydrogenation rate was 99% or more
- the racemo dyad ratio was 89%, the melting point.
- the strip-shaped compression molded product was pulverized using a pulverizer (flakes crusher “FC-200 type” manufactured by Hosokawa Micron Co., Ltd.) equipped with a mesh screen having an inner diameter of 5 mm to obtain a flaky powder lump.
- a pulverizer flakes crusher “FC-200 type” manufactured by Hosokawa Micron Co., Ltd.
- FC-200 type flakes crusher “FC-200 type” manufactured by Hosokawa Micron Co., Ltd.
- Example 1 ⁇ Preparation of pellet molded body>
- the powder lump obtained in Synthesis Example 1 was put into a twin-screw extruder (TEM-37B, manufactured by Toshiba Machine Co., Ltd.) having four die holes with an inner diameter of 3 mm ⁇ , and formed into a strand-shaped molded body by hot melt extrusion molding. Then, it cut
- the operating conditions of the twin screw extruder are listed below. ⁇ Barrel set temperature: 270 °C ⁇ 280 °C ⁇ Die setting temperature: 250 °C ⁇ Screw speed: 145rpm ⁇ Feeder rotation speed: 50 rpm
- Example 2 The same procedure as in Example 1 was performed except that the powder mass obtained in Synthesis Example 3 was used, the winding speed was 1000 m / min, and the heat treatment temperature was 180 ° C. The productivity, bending test, and shrinkage rate of the obtained fiber were measured. The results are shown in Table 1.
- Example 3 The same procedure as in Example 1 was performed except that the powder mass obtained in Synthesis Example 4 was used and the heat treatment temperature was 160 ° C. The productivity, bending test, and shrinkage rate of the obtained fiber were measured. The results are shown in Table 1.
- Example 1 The same procedure as in Example 1 was performed except that the powder lump obtained in Synthesis Example 2 was used, the winding speed was 700 m / min, and the heat treatment temperature was 160 ° C. The productivity, bending test, and shrinkage rate of the obtained fiber were measured. The results are shown in Table 1.
- Example 2 The same procedure as in Example 1 was performed except that the powder mass obtained in Synthesis Example 1 was used and the heat treatment temperature was 120 ° C. The productivity, bending test, and shrinkage rate of the obtained fiber were measured. The results are shown in Table 1.
- Example 3 The same procedure as in Example 1 was performed except that the powder mass obtained in Synthesis Example 2 was used, the winding speed was 200 m / min, and the heat treatment temperature was 160 ° C. The productivity, bending test, and shrinkage rate of the obtained fiber were measured. The results are shown in Table 1.
- Example 4 The same procedure as in Example 1 was carried out except that the powder mass obtained in Synthesis Example 1 was used and the heat treatment temperature was 230 ° C. The productivity, bending test, and shrinkage rate of the obtained fiber were measured. The results are shown in Table 1.
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Abstract
Description
例えば、特許文献1には、融点を有する重合体を紡糸してなる繊維状成形品が記載されている。またこの文献の実施例には、紡糸速度200m/分かそれより速い速度で紡糸することも記載されている。
特許文献2では、ガラス転移温度が70℃以上であり、環状オレフィンを少なくとも40モル%含有する環状オレフィン重合体からなり、耐熱性、化学的安定性、強度に優れ、且つ不織布への加工性、特に形状追随性かつ形状保持性に優れた繊維等、およびそれらの製造方法が記載されている。またこの文献では、溶融押出された樹脂を実質的に延伸せずに巻き取る、即ち、押出速度=巻き取り速度で溶融紡糸することが推奨されている。
この問題を解決するために、樹脂が過度な剪断を受けることを防ぐために、事前に樹脂を加熱することが提案されている(特許文献4)。
そこで、本発明は、得られる成形体の焼け不良を大幅に低減し、紡糸速度が高くても破断の発生がない繊維、及びその製造方法を提供することを目的とする、
かかる知見に基づき、更に検討を重ねた結果、環状オレフィン重合体の樹脂粉100ccのゆるめ嵩密度が0.3g/cc以上0.6g/cc以下である、前記樹脂粉から得られたペレットを用いる場合には、得られる成形体の焼け不良を大幅に低減でき、かつ、紡糸速度が高くても繊維の破断が発生しないことを見いだし、本発明を完成させるに至った。
(1)環状オレフィン重合体の樹脂粉100ccのゆるめ嵩密度が0.3g/cc以上0.6g/cc以下である、前記樹脂粉から得られたペレットを紡糸し、次いで150~220℃で熱処理してなる繊維。
(2)環状オレフィン重合体が、ノルボルネン系単量体を少なくとも含む単量体を重合して得られる、融点を有するものである。
ノルボルネン系単量体由来の繰り返し単位を有し、融点をもつ環状オレフィン開環重合体水素添加物である(1)に記載の繊維。
(2)環状オレフィン重合体が、ノルボルネン系単量体由来の繰り返し単位を有し、融点をもつ環状オレフィン開環重合体水素添加物である(1)に記載の繊維。
(3)環状オレフィン重合体の樹脂粉100ccのゆるめ嵩密度が0.3g/cc以上0.6g/cc以下である、前記樹脂粉から得られたペレットを、紡糸速度700m/分以上で紡糸し、次いで150~220℃で熱処理する繊維の製造方法。
本発明の繊維は、環状オレフィン重合体の樹脂粉100ccのゆるめ嵩密度が0.3g/cc以上0.6g/cc以下である、前記樹脂粉から得られたペレットを紡糸し、次いで150~220℃で熱処理してなるものである。
本発明に用いる環状オレフィン重合体は、ノルボルネン系単量体を少なくとも含む単量体を重合して得られる重合体であって、融点を有するものである。
環状オレフィン重合体としては、環状オレフィンの単独重合体、2種以上の環状オレフィンの共重合体、又は、環境オレフィンとこれと共重合可能な単量体(環状オレフィインを除く)との共重合体が挙げられる。
ノルボルネン化合物は、ノルボルネン環構造含有環状オレフィンであれば、特に限定されない。例えば、ビシクロ〔2.2.1〕ヘプト-2-エン(慣用名:ノルボルネン)、炭化水素置換基を有するビシクロ〔2.2.1〕ヘプト-2-エン誘導体、官能基を有するビシクロ〔2.2.1〕ヘプト-2-エン誘導体、3環以上のノルボルネン誘導体、炭化水素置換基を有する3環以上のノルボルネン誘導体、官能基を有する3環以上のノルボルネン誘導体等が挙げられる、
融点を有するノルボルネン化合物重合体としては、融点を有するノルボルネン化合物の開環(共)重合体、融点を有するノルボルネン化合物の付加(共)重合体、融点を有する、ノルボルネン化合物とα―オレフィンとの付加共重合体が挙げられる。
これらのノルボルネン系単量体は、一種単独で、或いは二種以上を組み合わせて用いることが出来る。
前者の方法によれば、シンジオタクチック立体規則性を有する環状オレフィン開環重合体を得て、それを水素化することで、目的とする環状オレフィン開環重合体水素添加物を効率よく得ることができる。
回収された環状オレフィン重合体は、常法により乾燥され、樹脂粉末とすることができる。
本発明において使用する環状オレフィン重合体の融点が上記範囲内にあるときに、これから得られる繊維は優れた耐熱性を示す。
各種配合剤としては、熱可塑性樹脂材料で通常用いられているものであれば格別な制限はなく、例えば、酸化防止剤、紫外線吸収剤、光安定剤、近赤外線吸収剤、染料や顔料などの着色剤、可塑剤、帯電防止剤、蛍光増白剤、その他の樹脂などの配合剤が挙げられる。
酸化防止剤の具体例として、例えば、リン系酸化防止剤としては、トリフェニルホスファイト、ジフェニルイソデシルホスファイト、フェニルジイソデシルホスファイト、トリス(ノニルフェニル)ホスファイト、トリス(ジノニルフェニル)ホスファイト、トリス(2,4-ジ-t-ブチルフェニル)ホスファイト、10-(3,5-ジ-t-ブチル-4-ヒドロキシベンジル)-9,10-ジヒドロ-9-オキサ-10-ホスファフェナントレン-10-オキサイドなどのモノホスファイト系化合物;4,4’-ブチリデン-ビス(3-メチル-6-t-ブチルフェニル-ジ-トリデシルホスファイト)、4,4’-イソプロピリデン-ビス(フェニル-ジ-アルキル(C12~C15)ホスファイト)などのジホスファイト系化合物;6-〔3-(3-t-ブチル-4-ヒドロキシ-5-メチルフェニル)プロポキシ〕-2,4,8,10-テトラキス-t-ブチルジベンゾ〔d,f〕〔1.3.2〕ジオキサフォスフェピン、6-〔3-(3,5-ジ-t-ブチル-4-ヒドロキシフェニル)プロポキシ〕-2,4,8,10-テトラキス-t-ブチルジベンゾ〔d,f〕〔1.3.2〕ジオキサフォスフェピンなどの化合物を挙げることができる。
これらは一種単独で、二種以上を組み合わせて用いることが出来る。
これらの中でも、生産性の観点から連続式の圧縮機が好ましく、機器の構造上、加圧できる圧力上限が高く、ゆるめ嵩密度がより高い粉塊を得られる観点からロール圧縮機が特に好ましい。
解砕は、砕機を用いて行えば良い。例えば、カッターミル、ハンマーミル、二軸型解砕機、ピンミル型粉砕機、回転ブレード式解砕機、など公知の機器を使用する方法が挙げられる。
こうして得られた、ゆるめ嵩密度0.3g/cc以上0.6g/cc以下の環状オレフィン重合体の樹脂粉を、熱溶融成形機にて溶融成形する。
熱溶融成形法としては、射出成形、シート成形、ブロー成形、インジェクションブロー成形、インフレーション成形、Tダイ成形、プレス成形、押出成形等の溶融状態で成形する公知の方法が挙げられ、圧空成形、真空成形等の二次加工成形法も採用することができる。また、加熱ロール、ニーダー、バンバリーミキサー、押出機等の混練機を用いて所定の材料を混練した後、冷却、粉砕し、さらにトランスファー成形、射出成形、圧縮成形等により成形を行う方法も一例として挙げることができる。
Tダイ成形では、一般に、押出機等で溶融混練された溶融樹脂が押出機に接続されたTダイを通りフィルム状の成形体を与える。
また、二軸押出機から得られるストランド状の成形体は、水冷などで冷却された後、ペレタイザーにより所定サイズにカットされたペレット状の成形体となる。
次に、得られたペレット状の成形体を紡糸し、次いで150~220℃で熱処理を行う。紡糸方法としては、溶融紡糸、乾式紡糸、湿式紡糸など一般的な紡糸方法に採用可能であるが、溶融紡糸が好適である。
即ち、押出機のシリンダー部でペレットを熱溶融し、溶融計量された環状オレフィン樹脂を、ダイに導き、紡糸ノズル(口金)から樹脂を押出して紡糸する。ノズルから吐出された繊維は冷風などにより冷却しながら、ローラー等を用いて引き取る。
引き取った繊維は、巻き取った後又はそのまま引き続き熱処理(アニール)工程に付される。
延伸温度は、ペレットを構成する環状オレフィン樹脂のガラス転移温度を考慮して設定すれば良い。一般的には、Tgより5℃~100℃高い温度であり、好ましくはTgより5℃~50℃高い温度である。
熱処理工程は、繊維が巻き取られた状態で行っても良いし、糸条繊維状態で行っても良い。熱処理工程で、同時に延伸をすることもでき、また、熱処理の後に延伸することもできる。もちろん熱処理時に延伸せず、熱処理後も延伸しない無延伸の繊維としてもよい。
熱処理時間は、30秒~60分であり、好ましくは1分~30分である。
熱処理を行うことで、延伸後の繊維の熱収縮抑制や繊維の強度向上の効果を得ることができる。
以下の実施例及び比較例において、部又は%は、特に断りがない限り、重量基準である。
(1)環状オレフィン開環重合体の分子量(重量平均分子量及び数平均分子量)
ゲル・パーミエーション・クロマトグラフィー(GPC)システム HLC-8220(東ソー社製)で、Hタイプカラム(東ソー社製)を用い、テトラヒドロフランを溶媒として40℃で測定し、ポリスチレン換算値として求めた。
(2)環状オレフィン開環重合体水素添加物における水素化率
1H-NMR測定により求めた。
(3)環状オレフィン開環重合体水素添加物の融点
示差走査熱量計(DSC)を用いて、昇温温度:10℃/分で測定した。
(4)環状オレフィン開環重合体水素添加物のラセモ・ダイアッドの割合
オルトジクロロベンゼン-d4を溶媒として、200℃で13C-NMR測定を行い、メソ・ダイアッド由来の43.35ppmのシグナルと、ラセモ・ダイアッド由来の43.43ppmのシグナルの強度比に基づいて決定した。
(5)ゆるめ嵩密度
粉体物性測定器(「パウダーテスタTP-X」、ホソカワミクロン社製)用の100cc嵩密度測定用カップ中にサンプルを自然落下させ、100cc容量分をカップ中に投入したときのサンプル重量を測定することにより、ゆるめ嵩密度(g/cc)を計測した。
紡糸中における糸の破断の起こりやすさで評価した。1000mの繊維を得る紡糸を10回行ない、800mまでに破断の発生した回数が、1回以下のものを「○」、4~2回のものを「△」、5回以上のものを「×」とした。
(7)繊維の折り曲げ試験
繊維を180°折り曲げを繰り返した時の破断の起こりやすさで評価した。10本の繊維のうち8本以上が、50回以上で破断のないものを「○」、30回以上50回未満で破断するものを「△」、30回未満で破断するものを「×」とした。
(8)繊維の収縮率
10cmに切った繊維10本を、内温150℃のオーブンの中で吊り下げ、30分間放置した後に繊維長をはかり、10本の繊維の値を平均して収縮率を求めた。
内部を充分に乾燥した後、窒素置換した金属製耐圧反応容器に、シクロヘキサン154.5部、ジシクロペンタジエン(エンド体含有率99%以上)の70%シクロヘキサン溶液42.8部(ジシクロペンタジエンの量として30部)、1-ヘキセン1.8部を加え、53℃に加温した。
一方、テトラクロロタングステンフェニルイミド(テトラヒドロフラン)錯体0.015部を0.70部のトルエンに溶解した溶液に、19%のジエチルアルミニウムエトキシド/n-ヘキサン溶液0.060部を加えて10分間攪拌し、触媒溶液を調製した。この触媒溶液を反応器に加えて開環重合反応を開始させた。その後、52℃を保ちながら、4時間反応させ、ジシクロペンタジエン開環重合体溶液を得た。
得られたジシクロペンタジエン開環重合体の数平均分子量(Mn)及び重量平均分子量(Mw)は、それぞれ、9,100及び29,000であり、これらから求められる分子量分布(Mw/Mn)は3.19であった。
得られたジシクロペンタジエン開環重合体溶液200部に、停止剤として1,2-エタンジオール0.038部を加えて、60℃に加温し、1時間攪拌して重合反応を停止させた。その後、ハイドロタルサイト様化合物(製品名「キョーワード(登録商標)2000」、協和化学工業社製)を1部加えて、60℃に加温し、1時間攪拌した。濾過助剤としてラヂオライト(登録商標)#1500(昭和化学工業社製)を0.4部加え、PPプリーツカートリッジフィルター(製品名「TCP-HX」、ADVANTEC東洋社製)を用いて、吸着剤を濾別した。
濾過後のジシクロペンタジエン開環重合体溶液200部(重合体量30部)に、シクロヘキサン100部を加えて、クロロヒドリドカルボニルトリス(トリフェニルホスフィン)ルテニウム0.0042部を添加し、水素圧6MPa、180℃で5時間水素添加反応を行なった。
得られた水素添加反応液は、重合体が析出してスラリー溶液となっており、遠心分離器を用いて重合体水素添加物と溶液を分離した。得られた重合体水素添加物を60℃で24時間減圧乾燥して、結晶性を有するジシクロペンタジエン開環重合体水素添加物29部を得た。また、ゆるめ嵩比重、水素化率、ラセモ・ダイアッドの割合、及び、融点を測定したところ、ゆるめ嵩比重は0.41、水素化率は99%以上、ラセモ・ダイアッドの割合は89%、融点は263℃であった。
水素化触媒として、クロロヒドリドカルボニルトリス(トリフェニルホスフィン)ルテニウム0.053部を用い、水素化反応温度155℃とする以外は、合成例1と同様にして開環重合体水素添加物粉末を得た。重合体水素化物粉末の収量は30部であった。また、ゆるめ嵩比重、水素化率、ラセモ・ダイアッドの割合、及び、融点を測定したところ、ゆるめ嵩比重は0.20、水素化率は99%以上、ラセモ・ダイアッドの割合は89%、融点は263℃であった。
<加圧圧縮成形>
合成例2で得られた結晶性環状オレフィン開環重合体水素添加物粉末100部に、粉末状の酸化防止剤(テトラキス〔メチレン-3-(3’,5’-ジ-tert-ブチル-4’-ヒドロキシフェニル)プロピオネート〕メタン、商品名「イルガノックス(登録商標)1010」、BASFジャパン社製)0.5部を混合後、加圧圧縮成形機(真空脱気機構付ブリケッタ「BGS-IV」、新東工業社製)を使用し短冊状の圧縮成形品を得た。
・ロールポケット形状:波型ロール(R=3)
・ロール回転数:20rpm
・ロール圧力:15kN
加圧圧縮成形の運転条件を、以下に変更した以外は、合成例3と同様に実施した。
・ロール回転数:7.3rpm
・ロール圧力:70kN
得られたフレーク状の粉塊の大きさを篩により分別し測定したところ、10mm以上のものが0%、0.1mm以下のものが0.6%の形状であり、ゆるめ嵩密度は0.47g/ccであった。
<ペレット成形体の作製>
合成例1で得た粉塊を、内径3mmφのダイ穴を4つ備えた二軸押出し機(TEM-37B、東芝機械社製)に投入し、熱溶融押出し成形によりストランド状の成形体にした後、径3mmφ×長さ3mmの円筒状のペレット形状になるように、ストランドカッターにて細断し、ペレット形状の熱溶融押出し成形体を得た。
二軸押出し機の運転条件を、以下に箇条書きで記す。
・バレル設定温度:270℃~280℃
・ダイ設定温度:250℃
・スクリュー回転数:145rpm
・フィーダー回転数:50rpm
得られたペレットを、円状ノズルを用いて、紡糸温度290℃で溶融押出し、800m/分で巻取り、引き続き200℃で10分間の加熱処理を行なうことで繊維を得た。得られた繊維の生産性、折り曲げ試験、収縮率を測定した。結果を表1に示した。
合成例3で得た粉塊を用い、巻き取り速度を1000m/分、加熱処理温度を180℃で行なった以外は、実施例1と同様に実施した。得られた繊維の生産性、折り曲げ試験、収縮率を測定した。結果を表1に示した。
合成例4で得た粉塊を用い、加熱処理温度を160℃で行なった以外は、実施例1と同様に実施した。得られた繊維の生産性、折り曲げ試験、収縮率を測定した。結果を表1に示した。
合成例2で得た粉塊を用い、巻き取り速度を700m/分、加熱処理温度を160℃で行なった以外は、実施例1と同様に実施した。得られた繊維の生産性、折り曲げ試験、収縮率を測定した。結果を表1に示した。
合成例1で得た粉塊を用い、加熱処理温度を120℃で行なった以外は、実施例1と同様に実施した。得られた繊維の生産性、折り曲げ試験、収縮率を測定した。結果を表1に示した。
合成例2で得た粉塊を用い、巻き取り速度を200m/分、加熱処理温度を160℃で行なった以外は、実施例1と同様に実施した。得られた繊維の生産性、折り曲げ試験、収縮率を測定した。結果を表1に示した。
合成例1で得た粉塊を用い、加熱処理温度を230℃で行なった以外は、実施例1と同様に実施した。得られた繊維の生産性、折り曲げ試験、収縮率を測定した。結果を表1に示した。
Claims (3)
- 環状オレフィン重合体の樹脂粉100ccのゆるめ嵩密度が0.3g/cc以上0.6g/cc以下である、前記樹脂粉から得られたペレットを紡糸し、次いで150~220℃で熱処理してなる繊維。
- 環状オレフィン重合体が、ノルボルネン系単量体由来の繰り返し単位を有し、融点をもつ環状オレフィン開環重合体水素添加物である請求項1記載の繊維。
- 環状オレフィン重合体の樹脂粉100ccのゆるめ嵩密度が0.3g/cc以上0.6g/cc以下である、前記樹脂粉から得られたペレットを、紡糸速度700m/分以上で紡糸し、次いで150~220℃で熱処理する繊維の製造方法。
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US15/031,931 US9605361B2 (en) | 2013-10-24 | 2014-10-20 | Fiber comprising alicyclic-structure-containing polymer, and method for manufacturing same |
EP14854939.7A EP3061854B1 (en) | 2013-10-24 | 2014-10-20 | Method for manufacturing fibers comprising alicyclic-structure-containing polymer |
CN201480056909.7A CN105637129B (zh) | 2013-10-24 | 2014-10-20 | 由含有脂环结构的聚合物构成的纤维及其制造方法 |
JP2015543841A JP6674129B2 (ja) | 2013-10-24 | 2014-10-20 | 脂環構造含有重合体からなる繊維、およびその製造方法 |
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EP (1) | EP3061854B1 (ja) |
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JP2017507208A (ja) * | 2014-02-21 | 2017-03-16 | マサチューセッツ インスティテュート オブ テクノロジー | 開環メタセシス重合のための触媒及び方法 |
WO2019167683A1 (ja) * | 2018-02-28 | 2019-09-06 | 日本ゼオン株式会社 | 不織布およびフィルター |
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US11760863B2 (en) * | 2017-09-29 | 2023-09-19 | Zeon Corporation | Biochemical tool |
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- 2014-10-20 CN CN201480056909.7A patent/CN105637129B/zh active Active
- 2014-10-20 US US15/031,931 patent/US9605361B2/en active Active
- 2014-10-20 EP EP14854939.7A patent/EP3061854B1/en not_active Not-in-force
- 2014-10-20 WO PCT/JP2014/077826 patent/WO2015060242A1/ja active Application Filing
- 2014-10-20 JP JP2015543841A patent/JP6674129B2/ja active Active
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CN105637129B (zh) | 2018-08-10 |
EP3061854A1 (en) | 2016-08-31 |
US20160273131A1 (en) | 2016-09-22 |
EP3061854A4 (en) | 2017-04-05 |
EP3061854B1 (en) | 2018-11-28 |
CN105637129A (zh) | 2016-06-01 |
JP6674129B2 (ja) | 2020-04-01 |
JPWO2015060242A1 (ja) | 2017-03-09 |
US9605361B2 (en) | 2017-03-28 |
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