[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-324621-105":59,"doc-detail-324621-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","a-method-of-manufacturing-acrylonitrile-fibers","A Method of Manufacturing Acrylonitrile Fibers","","Method of manufacturing acrylonitrile fibers with extremely high toughness by spinning an acrylonitrile polymer, washing, and then drawing in pressurized steam. The claims require at least 40 wt% acrylonitrile in the polymer and a limiting viscosity of 1.8 or higher, followed by a total draw ratio of 8 to 25 times at 3 to 8 kg/cm² gauge pressure. Detailed description addresses strength, elasticity, and defects from high-multiple drawing, including fibrillation and wear-resistance loss.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/a-method-of-manufacturing-acrylonitrile-fibers/324621/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/a-method-of-manufacturing-acrylonitrile-fibers/324621.png","ImageObject",300,407,{"name":92,"@type":93},"Violet","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-09","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",17,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What are the key requirements in the polymer used for manufacturing the acrylonitrile fibers?","Question",{"text":113,"@type":114},"The polymer must contain at least 40 wt% acrylonitrile and have a limiting viscosity of 1.8 or higher (standard method).","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How is the fiber processed after spinning and washing?",{"text":118,"@type":114},"After spinning and washing, the product is drawn to a total drawing ratio of 8 to 25 times in pressurized steam under a gauge pressure of 3 to 8 kg/cm².",{"name":120,"@type":111,"acceptedAnswer":121},"Why does high-multiple drawing lead to decreased toughness in ordinary acrylonitrile fibers?",{"text":122,"@type":114},"Increasing draw multiple can cause fibrillation and defects such as naps development, which reduce wear resistance, while elasticity decreases proportionally with draw multiple.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},324621,1790485231,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":146,"preview_page_count":4},4398048950312,"https://ap-avatar.wpscdn.com/avatar/400002538284de19e3c?_k=1778320343897328908","Otani,T.,and Yoneyama,H.  \nA method of manufacturing acryloni-trile fibers.14 p.  \nPatent(Japanese)No.54-160820(1979).Filed:  TRANSLATION iNO.4539  \n# T R A N S L A T I O N\n\nPATENT BUREAU OF JAPAN  \nOFFICIAL GAZETTE FOR UNEXAMINED PATENTS  \nJapanese Patent Application Kokai:  54-160820  \nPublication Date:  December 19,1979  \nNumber of Inventions:  1  \nRequest for Examination:(Not yet requested).  (Total of 7 pages)  \nInternational ClassIntrabureau No.  \nD 01 F 6/18  \n6768-4L  \n# A METHOD OF MANUFACTURING ACRYLONITRILE FIBERS\n\nApplication No.:  53-67497  \nApplication Date:  June 5,1978  \nInventors:T.Otani  \n2-5 Kurogawa 3-chomeOtake City  \nH.Yoneyama  \n2978-6 Oaza ShimokubaraShoto-cho,Kuga-gunYamaguchi Prefecture  \nApplicant:Mitsubishi Rayon Co.,Ltd.3-19 Kyobashi 2-chomeChuo-ku,Tokyo  \nPatent Attorney:  T.Yoshizawa  \nSPECIFICATTON  \n# 1.   Title of Invention\n\nA Method of Manufacturing Acrylonitrile Fibers  \nClaims  \n1.  A method of manufacturing acrylonitrile fibers havinghigh toughness characterized by spinning an acrylonitrilepolymer containing at least 40号by weight of acrylonitrile andhaving a limiting viscosity of 1.8 or higher by a standardmethod and then washinq the product,after which it is drawnto a total drawing ratio of 8 to 25 times in pressurizedsteam at a gauge pressure of 3 to 8 kg/cm²-G.  \n2.  A method of manufacturing acrylonitrile fibers asdescribed in Clause l of the Claims characterized by the factthat preliminary drawing is carried out in hot water at aneffective drawing ratio as indicated below in the range of 0.2to 0.5 before drawing in pressurized steam.  \nEffective preliminary drawing ratio    drawing二maximum drawing ratio at whichratiobreaking of fibers due to drawingOCcurs  \n# 3.  Detailed Description of the Invention\n\nThis method relates to a method of manufacturing acrylonitrilefibers having extremely high toughness.  In greater detail,itprovides a method of manufacturing acrylonitrile fibers of highstrength and superior wear resistance by spinning an acrylonitrilepolymer with a limiting viscosity of 1.8 or higher,after whichthe fiber is subjected to specific pressurized steam drawing.  \nFibers that are to be used as materials and accessory materialsare required to exhibit heat-resistance,resistance to chemicalsand high toughness.  Acrylonitrile fibers are no exception andthe toughness of acrylonitrile fibers is a major factor con-tributing to their wide use.  \nWhen toughness is defined as (strength×elasticity),increasingstrength and preventing decrease in elasticity are clearly importantconditions.  In the manufacture of ordinary synthetic fibers,ithas been found that fibers of a high degree of orientation cannotbe obtained when the drawing multiple is increased.  When acrylo-nitrile(hereafter referred to as AN)fibers are subjected todrawing at high multiples,fibrillation generally tends to occur.Thus,there are the defects that,even though strength isincreased,the fibers undergo fibrillation,naps develop andwear resistance is decreased.  At the same time,the elasticityof the fibers is decreased proportionally as the drawing multipleis increased.  Thus there are limits to increase in toughness.  \nThe toughness value for ordinary AN fiber is as much as possiblein the range of 40 to 50.  \nIn recent years,pressurized steam drawing has been developedas a drawing method.  When its drawing capacity at high multiplesis used,toughness values of 50 to 70 can be achieved.and themanufacture of high-strength fibers is facilitated.  Theinventors prepared undrawn AN polymer fiber by wet and dryspinning methods,subjected said undrawn fibers to pressurizedsteam drawing under various conditions and studied the operationalcharacteristics of the drawing and strength and elasticity of thefibers obtained.  As a result,they discovered that their tough-ness could be increased to the aforementioned range.  In addition,they found that essentially the same behavior was exhibited inpressurized steam drawing and that there was ","cbCaiuAjbjYCjuM3","https://ap.wps.com/l/cbCaiuAjbjYCjuM3","pdf",1097346,32,"English","# 1. Title of Invention\n# 2. Claims\n## 2.1 Claim 1\n## 2.2 Claim 2\n# 3. Detailed Description of the Invention","[{\"question\":\"What are the key requirements in the polymer used for manufacturing the acrylonitrile fibers?\",\"answer\":\"The polymer must contain at least 40 wt% acrylonitrile and have a limiting viscosity of 1.8 or higher (standard method).\"},{\"question\":\"How is the fiber processed after spinning and washing?\",\"answer\":\"After spinning and washing, the product is drawn to a total drawing ratio of 8 to 25 times in pressurized steam under a gauge pressure of 3 to 8 kg/cm².\"},{\"question\":\"Why does high-multiple drawing lead to decreased toughness in ordinary acrylonitrile fibers?\",\"answer\":\"Increasing draw multiple can cause fibrillation and defects such as naps development, which reduce wear resistance, while elasticity decreases proportionally with draw multiple.\"}]","A Method of Manufacturing Acrylonitrile Fibers | PDF",1789968428,81]