OPTICS-USE RESIN MOLDED BODY PRODUCTION METHOD, RESIN FIBER PRODUCTION METHOD, AND RESIN FIBER PRODUCTION APPARATUS
An optical resin formed body manufacturing method of the present invention includes: (i) depressurizing an inside of a container holding a molten optical resin; (ii) pressurizing the inside of the container holding the molten optical resin; and (iii) shaping the optical resin taken out of the contai...
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| creator | IRIE Sho OKADA Yasuaki SUGIURA Shinsuke SAOMOTO Kenjiro |
| description | An optical resin formed body manufacturing method of the present invention includes: (i) depressurizing an inside of a container holding a molten optical resin; (ii) pressurizing the inside of the container holding the molten optical resin; and (iii) shaping the optical resin taken out of the container into a given shape. The steps (i) and (ii) are sequentially performed once each or are alternately performed two or more times each. In the step (i), a duration t1 [min] of the depressurization of the inside of the container is set such that the duration t1 and a viscosity µ1 [Pa*s] of the molten optical resin satisfy a relation µ1/t1 < 200. In the step (ii), a duration t2 [min] of the pressurization of the inside of the container is set such that the duration t2 and a viscosity µ2 [Pa*s] of the molten optical resin satisfy a relation µ2/t2 < 200. The viscosity µ1 is a viscosity of the optical resin at a shear rate of 0.05 s-1 at a temperature in the container in the step (i). The viscosity µ2 is a viscosity of the optical resin at a shear rate of 0.05 s-1 at a temperature in the container in the step (ii). |
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The steps (i) and (ii) are sequentially performed once each or are alternately performed two or more times each. In the step (i), a duration t1 [min] of the depressurization of the inside of the container is set such that the duration t1 and a viscosity µ1 [Pa*s] of the molten optical resin satisfy a relation µ1/t1 < 200. In the step (ii), a duration t2 [min] of the pressurization of the inside of the container is set such that the duration t2 and a viscosity µ2 [Pa*s] of the molten optical resin satisfy a relation µ2/t2 < 200. The viscosity µ1 is a viscosity of the optical resin at a shear rate of 0.05 s-1 at a temperature in the container in the step (i). The viscosity µ2 is a viscosity of the optical resin at a shear rate of 0.05 s-1 at a temperature in the container in the step (ii).</description><language>eng ; fre ; ger</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; GENERAL PROCESSES OF COMPOUNDING ; MAKING GRANULES OR PREFORMS ; METALLURGY ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; PHYSICS ; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED ; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL ; WORKING-UP</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230405&DB=EPODOC&CC=EP&NR=4159396A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230405&DB=EPODOC&CC=EP&NR=4159396A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IRIE Sho</creatorcontrib><creatorcontrib>OKADA Yasuaki</creatorcontrib><creatorcontrib>SUGIURA Shinsuke</creatorcontrib><creatorcontrib>SAOMOTO Kenjiro</creatorcontrib><title>OPTICS-USE RESIN MOLDED BODY PRODUCTION METHOD, RESIN FIBER PRODUCTION METHOD, AND RESIN FIBER PRODUCTION APPARATUS</title><description>An optical resin formed body manufacturing method of the present invention includes: (i) depressurizing an inside of a container holding a molten optical resin; (ii) pressurizing the inside of the container holding the molten optical resin; and (iii) shaping the optical resin taken out of the container into a given shape. The steps (i) and (ii) are sequentially performed once each or are alternately performed two or more times each. In the step (i), a duration t1 [min] of the depressurization of the inside of the container is set such that the duration t1 and a viscosity µ1 [Pa*s] of the molten optical resin satisfy a relation µ1/t1 < 200. In the step (ii), a duration t2 [min] of the pressurization of the inside of the container is set such that the duration t2 and a viscosity µ2 [Pa*s] of the molten optical resin satisfy a relation µ2/t2 < 200. The viscosity µ1 is a viscosity of the optical resin at a shear rate of 0.05 s-1 at a temperature in the container in the step (i). 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The steps (i) and (ii) are sequentially performed once each or are alternately performed two or more times each. In the step (i), a duration t1 [min] of the depressurization of the inside of the container is set such that the duration t1 and a viscosity µ1 [Pa*s] of the molten optical resin satisfy a relation µ1/t1 < 200. In the step (ii), a duration t2 [min] of the pressurization of the inside of the container is set such that the duration t2 and a viscosity µ2 [Pa*s] of the molten optical resin satisfy a relation µ2/t2 < 200. The viscosity µ1 is a viscosity of the optical resin at a shear rate of 0.05 s-1 at a temperature in the container in the step (i). The viscosity µ2 is a viscosity of the optical resin at a shear rate of 0.05 s-1 at a temperature in the container in the step (ii).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MAKING GRANULES OR PREFORMS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP |
| title | OPTICS-USE RESIN MOLDED BODY PRODUCTION METHOD, RESIN FIBER PRODUCTION METHOD, AND RESIN FIBER PRODUCTION APPARATUS |
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