VIP를 포함하는 샌드위치 구조체 및 이의 제조 방법

본 발명은, 제1 및 제2 외층, 상기 두 외층 사이의 진공 단열 패널, 상기 제1 외층 및 상기 진공 단열 패널의 하면과 접촉하는 경질 폴리우레탄 발포체, 및 또한 상기 제2 외층 및 상기 진공 단열 패널의 상면과 접촉하는 경질 폴리우레탄 발포체를 포함하는 복합재 요소의 제조 방법에 관한 것으로, 이 방법은 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R1)을 제1 외층에 적용하는 단계, 진공 단열 패널의 하면을 미경화 반응 혼합물(R1)과 접촉시키는 단계, 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R2)을 진공 단...

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Hauptverfasser: BOOS JUERGEN, KROGMANN JOERG, MOHMEYER NILS, ELBING MARK, KLASSEN JOHANN, FRICKE MARC
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creator BOOS JUERGEN
KROGMANN JOERG
MOHMEYER NILS
ELBING MARK
KLASSEN JOHANN
FRICKE MARC
description 본 발명은, 제1 및 제2 외층, 상기 두 외층 사이의 진공 단열 패널, 상기 제1 외층 및 상기 진공 단열 패널의 하면과 접촉하는 경질 폴리우레탄 발포체, 및 또한 상기 제2 외층 및 상기 진공 단열 패널의 상면과 접촉하는 경질 폴리우레탄 발포체를 포함하는 복합재 요소의 제조 방법에 관한 것으로, 이 방법은 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R1)을 제1 외층에 적용하는 단계, 진공 단열 패널의 하면을 미경화 반응 혼합물(R1)과 접촉시키는 단계, 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R2)을 진공 단열 패널의 상면에 적용하는 단계, 제2 외층을 미경화 반응 혼합물(R2)의 층과 접촉시키는 단계, 및 최종적으로 상기 두 경질 폴리우레탄 발포체 시스템 (R1) 및 (R2)를 경화시켜 복합재 요소를 제공하는 단계를 포함한다. 본 발명은 또한, 이렇게 얻을 수 있는 복합재 요소, 및 또한 냉장 장비용 부품으로서 또는 건축 자재로서의, 본 발명 복합재 요소 또는 본 발명 방법에 의해 얻을 수 있는 복합재 요소의 용도에 관한 것이다. The present invention relates to a process for the production of composite elements comprising a first and a second outer layer, a vacuum insulation panel between the two outer layers, rigid polyurethane foam in contact with the first outer layer and the underside of the vacuum insulation panel, and also rigid polyurethane foam in contact with the second outer layer and the upper side of the vacuum insulation panel, comprising application of a reaction mixture (R1) for the production of a rigid polyurethane foam onto the first outer layer, bringing the lower side of a vacuum insulation panel into contact with the unhardened reaction mixture (R1), application of a reaction mixture (R2) for the production of a rigid polyurethane foam to the upper side of the vacuum insulation panel, bringing the second outer layer into contact with the layer of the unhardened reaction mixture (R2), and finally hardening of the two rigid polyurethane foam systems (R1) and (R2) to give the composite element. The present invention further relates to composite elements thus obtainable, and also to the use of a composite element of the invention or of a composite element obtainable by a process of the invention, as component for refrigeration equipment or as construction material.
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fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_KR20180071329A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>KR20180071329A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_KR20180071329A3</originalsourceid><addsrcrecordid>eNrjZHAO8wx4vXSPwtv-NW-nrng7dcbrrikKb5p7Xk-e82ZOy5udMxRebV3zZuGGN5u2KLze0K_wZu6WN3NnKLxZMAcoCBRZ-XrTVB4G1rTEnOJUXijNzaDs5hri7KGbWpAfn1pckJicmpdaEu8dZGRgaGFgYG5obGTpaEycKgD5I0Uz</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>VIP를 포함하는 샌드위치 구조체 및 이의 제조 방법</title><source>esp@cenet</source><creator>BOOS JUERGEN ; KROGMANN JOERG ; MOHMEYER NILS ; ELBING MARK ; KLASSEN JOHANN ; FRICKE MARC</creator><creatorcontrib>BOOS JUERGEN ; KROGMANN JOERG ; MOHMEYER NILS ; ELBING MARK ; KLASSEN JOHANN ; FRICKE MARC</creatorcontrib><description>본 발명은, 제1 및 제2 외층, 상기 두 외층 사이의 진공 단열 패널, 상기 제1 외층 및 상기 진공 단열 패널의 하면과 접촉하는 경질 폴리우레탄 발포체, 및 또한 상기 제2 외층 및 상기 진공 단열 패널의 상면과 접촉하는 경질 폴리우레탄 발포체를 포함하는 복합재 요소의 제조 방법에 관한 것으로, 이 방법은 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R1)을 제1 외층에 적용하는 단계, 진공 단열 패널의 하면을 미경화 반응 혼합물(R1)과 접촉시키는 단계, 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R2)을 진공 단열 패널의 상면에 적용하는 단계, 제2 외층을 미경화 반응 혼합물(R2)의 층과 접촉시키는 단계, 및 최종적으로 상기 두 경질 폴리우레탄 발포체 시스템 (R1) 및 (R2)를 경화시켜 복합재 요소를 제공하는 단계를 포함한다. 본 발명은 또한, 이렇게 얻을 수 있는 복합재 요소, 및 또한 냉장 장비용 부품으로서 또는 건축 자재로서의, 본 발명 복합재 요소 또는 본 발명 방법에 의해 얻을 수 있는 복합재 요소의 용도에 관한 것이다. The present invention relates to a process for the production of composite elements comprising a first and a second outer layer, a vacuum insulation panel between the two outer layers, rigid polyurethane foam in contact with the first outer layer and the underside of the vacuum insulation panel, and also rigid polyurethane foam in contact with the second outer layer and the upper side of the vacuum insulation panel, comprising application of a reaction mixture (R1) for the production of a rigid polyurethane foam onto the first outer layer, bringing the lower side of a vacuum insulation panel into contact with the unhardened reaction mixture (R1), application of a reaction mixture (R2) for the production of a rigid polyurethane foam to the upper side of the vacuum insulation panel, bringing the second outer layer into contact with the layer of the unhardened reaction mixture (R2), and finally hardening of the two rigid polyurethane foam systems (R1) and (R2) to give the composite element. The present invention further relates to composite elements thus obtainable, and also to the use of a composite element of the invention or of a composite element obtainable by a process of the invention, as component for refrigeration equipment or as construction material.</description><language>kor</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; BLASTING ; BUILDING ; CEILINGS ; CHEMISTRY ; COLD ROOMS ; COMBINED HEATING AND REFRIGERATION SYSTEMS ; COMPOSITIONS BASED THEREON ; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS ; FIXED CONSTRUCTIONS ; FLOORS ; GENERAL BUILDING CONSTRUCTIONS ; GENERAL PROCESSES OF COMPOUNDING ; HEAT PUMP SYSTEMS ; HEATING ; ICE-BOXES ; INSULATION OR OTHER PROTECTION OF BUILDINGS ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; LIGHTING ; LIQUEFACTION SOLIDIFICATION OF GASES ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; MANUFACTURE OR STORAGE OF ICE ; MECHANICAL ENGINEERING ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; REFRIGERATION OR COOLING ; REFRIGERATORS ; ROOFS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; WALLS, e.g. PARTITIONS ; WEAPONS ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL ; WORKING-UP</subject><creationdate>2018</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&amp;date=20180627&amp;DB=EPODOC&amp;CC=KR&amp;NR=20180071329A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20180627&amp;DB=EPODOC&amp;CC=KR&amp;NR=20180071329A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BOOS JUERGEN</creatorcontrib><creatorcontrib>KROGMANN JOERG</creatorcontrib><creatorcontrib>MOHMEYER NILS</creatorcontrib><creatorcontrib>ELBING MARK</creatorcontrib><creatorcontrib>KLASSEN JOHANN</creatorcontrib><creatorcontrib>FRICKE MARC</creatorcontrib><title>VIP를 포함하는 샌드위치 구조체 및 이의 제조 방법</title><description>본 발명은, 제1 및 제2 외층, 상기 두 외층 사이의 진공 단열 패널, 상기 제1 외층 및 상기 진공 단열 패널의 하면과 접촉하는 경질 폴리우레탄 발포체, 및 또한 상기 제2 외층 및 상기 진공 단열 패널의 상면과 접촉하는 경질 폴리우레탄 발포체를 포함하는 복합재 요소의 제조 방법에 관한 것으로, 이 방법은 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R1)을 제1 외층에 적용하는 단계, 진공 단열 패널의 하면을 미경화 반응 혼합물(R1)과 접촉시키는 단계, 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R2)을 진공 단열 패널의 상면에 적용하는 단계, 제2 외층을 미경화 반응 혼합물(R2)의 층과 접촉시키는 단계, 및 최종적으로 상기 두 경질 폴리우레탄 발포체 시스템 (R1) 및 (R2)를 경화시켜 복합재 요소를 제공하는 단계를 포함한다. 본 발명은 또한, 이렇게 얻을 수 있는 복합재 요소, 및 또한 냉장 장비용 부품으로서 또는 건축 자재로서의, 본 발명 복합재 요소 또는 본 발명 방법에 의해 얻을 수 있는 복합재 요소의 용도에 관한 것이다. The present invention relates to a process for the production of composite elements comprising a first and a second outer layer, a vacuum insulation panel between the two outer layers, rigid polyurethane foam in contact with the first outer layer and the underside of the vacuum insulation panel, and also rigid polyurethane foam in contact with the second outer layer and the upper side of the vacuum insulation panel, comprising application of a reaction mixture (R1) for the production of a rigid polyurethane foam onto the first outer layer, bringing the lower side of a vacuum insulation panel into contact with the unhardened reaction mixture (R1), application of a reaction mixture (R2) for the production of a rigid polyurethane foam to the upper side of the vacuum insulation panel, bringing the second outer layer into contact with the layer of the unhardened reaction mixture (R2), and finally hardening of the two rigid polyurethane foam systems (R1) and (R2) to give the composite element. The present invention further relates to composite elements thus obtainable, and also to the use of a composite element of the invention or of a composite element obtainable by a process of the invention, as component for refrigeration equipment or as construction material.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>BLASTING</subject><subject>BUILDING</subject><subject>CEILINGS</subject><subject>CHEMISTRY</subject><subject>COLD ROOMS</subject><subject>COMBINED HEATING AND REFRIGERATION SYSTEMS</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>FLOORS</subject><subject>GENERAL BUILDING CONSTRUCTIONS</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>HEAT PUMP SYSTEMS</subject><subject>HEATING</subject><subject>ICE-BOXES</subject><subject>INSULATION OR OTHER PROTECTION OF BUILDINGS</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</subject><subject>LIGHTING</subject><subject>LIQUEFACTION SOLIDIFICATION OF GASES</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</subject><subject>MANUFACTURE OR STORAGE OF ICE</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>REFRIGERATION OR COOLING</subject><subject>REFRIGERATORS</subject><subject>ROOFS</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><subject>WALLS, e.g. PARTITIONS</subject><subject>WEAPONS</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAO8wx4vXSPwtv-NW-nrng7dcbrrikKb5p7Xk-e82ZOy5udMxRebV3zZuGGN5u2KLze0K_wZu6WN3NnKLxZMAcoCBRZ-XrTVB4G1rTEnOJUXijNzaDs5hri7KGbWpAfn1pckJicmpdaEu8dZGRgaGFgYG5obGTpaEycKgD5I0Uz</recordid><startdate>20180627</startdate><enddate>20180627</enddate><creator>BOOS JUERGEN</creator><creator>KROGMANN JOERG</creator><creator>MOHMEYER NILS</creator><creator>ELBING MARK</creator><creator>KLASSEN JOHANN</creator><creator>FRICKE MARC</creator><scope>EVB</scope></search><sort><creationdate>20180627</creationdate><title>VIP를 포함하는 샌드위치 구조체 및 이의 제조 방법</title><author>BOOS JUERGEN ; KROGMANN JOERG ; MOHMEYER NILS ; ELBING MARK ; KLASSEN JOHANN ; FRICKE MARC</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20180071329A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>kor</language><creationdate>2018</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>BLASTING</topic><topic>BUILDING</topic><topic>CEILINGS</topic><topic>CHEMISTRY</topic><topic>COLD ROOMS</topic><topic>COMBINED HEATING AND REFRIGERATION SYSTEMS</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>FLOORS</topic><topic>GENERAL BUILDING CONSTRUCTIONS</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>HEAT PUMP SYSTEMS</topic><topic>HEATING</topic><topic>ICE-BOXES</topic><topic>INSULATION OR OTHER PROTECTION OF BUILDINGS</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</topic><topic>LIGHTING</topic><topic>LIQUEFACTION SOLIDIFICATION OF GASES</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</topic><topic>MANUFACTURE OR STORAGE OF ICE</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>REFRIGERATION OR COOLING</topic><topic>REFRIGERATORS</topic><topic>ROOFS</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><topic>WALLS, e.g. PARTITIONS</topic><topic>WEAPONS</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>BOOS JUERGEN</creatorcontrib><creatorcontrib>KROGMANN JOERG</creatorcontrib><creatorcontrib>MOHMEYER NILS</creatorcontrib><creatorcontrib>ELBING MARK</creatorcontrib><creatorcontrib>KLASSEN JOHANN</creatorcontrib><creatorcontrib>FRICKE MARC</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BOOS JUERGEN</au><au>KROGMANN JOERG</au><au>MOHMEYER NILS</au><au>ELBING MARK</au><au>KLASSEN JOHANN</au><au>FRICKE MARC</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VIP를 포함하는 샌드위치 구조체 및 이의 제조 방법</title><date>2018-06-27</date><risdate>2018</risdate><abstract>본 발명은, 제1 및 제2 외층, 상기 두 외층 사이의 진공 단열 패널, 상기 제1 외층 및 상기 진공 단열 패널의 하면과 접촉하는 경질 폴리우레탄 발포체, 및 또한 상기 제2 외층 및 상기 진공 단열 패널의 상면과 접촉하는 경질 폴리우레탄 발포체를 포함하는 복합재 요소의 제조 방법에 관한 것으로, 이 방법은 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R1)을 제1 외층에 적용하는 단계, 진공 단열 패널의 하면을 미경화 반응 혼합물(R1)과 접촉시키는 단계, 경질 폴리우레탄 발포체의 제조를 위한 반응 혼합물(R2)을 진공 단열 패널의 상면에 적용하는 단계, 제2 외층을 미경화 반응 혼합물(R2)의 층과 접촉시키는 단계, 및 최종적으로 상기 두 경질 폴리우레탄 발포체 시스템 (R1) 및 (R2)를 경화시켜 복합재 요소를 제공하는 단계를 포함한다. 본 발명은 또한, 이렇게 얻을 수 있는 복합재 요소, 및 또한 냉장 장비용 부품으로서 또는 건축 자재로서의, 본 발명 복합재 요소 또는 본 발명 방법에 의해 얻을 수 있는 복합재 요소의 용도에 관한 것이다. The present invention relates to a process for the production of composite elements comprising a first and a second outer layer, a vacuum insulation panel between the two outer layers, rigid polyurethane foam in contact with the first outer layer and the underside of the vacuum insulation panel, and also rigid polyurethane foam in contact with the second outer layer and the upper side of the vacuum insulation panel, comprising application of a reaction mixture (R1) for the production of a rigid polyurethane foam onto the first outer layer, bringing the lower side of a vacuum insulation panel into contact with the unhardened reaction mixture (R1), application of a reaction mixture (R2) for the production of a rigid polyurethane foam to the upper side of the vacuum insulation panel, bringing the second outer layer into contact with the layer of the unhardened reaction mixture (R2), and finally hardening of the two rigid polyurethane foam systems (R1) and (R2) to give the composite element. The present invention further relates to composite elements thus obtainable, and also to the use of a composite element of the invention or of a composite element obtainable by a process of the invention, as component for refrigeration equipment or as construction material.</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
BLASTING
BUILDING
CEILINGS
CHEMISTRY
COLD ROOMS
COMBINED HEATING AND REFRIGERATION SYSTEMS
COMPOSITIONS BASED THEREON
COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS
FIXED CONSTRUCTIONS
FLOORS
GENERAL BUILDING CONSTRUCTIONS
GENERAL PROCESSES OF COMPOUNDING
HEAT PUMP SYSTEMS
HEATING
ICE-BOXES
INSULATION OR OTHER PROTECTION OF BUILDINGS
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
REFRIGERATION OR COOLING
REFRIGERATORS
ROOFS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WALLS, e.g. PARTITIONS
WEAPONS
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
WORKING-UP
title VIP를 포함하는 샌드위치 구조체 및 이의 제조 방법
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