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Claims cover thermal treatment at controlled tension, oxygen-free atmosphere, temperature limits between fusion curve deviation and complete fusion, and subsequent quenching below the glass transition temperature. Additional dependent claims address spinning speed thresholds, cooling-speed requirements, vacuum heat treatment, tailored temperature ranges, repeated heat-treatment/quenching cycles, and resulting fiber properties relevant to tire cord and resin reinforcement.",{"@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/process-for-the-production-of-nylon-66-fiber-of-high-strength-and-elastic-modulus-claims-patent-specification/321597/",{"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/process-for-the-production-of-nylon-66-fiber-of-high-strength-and-elastic-modulus-claims-patent-specification/321597.png","ImageObject",300,407,{"name":92,"@type":93},"Patrick","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-24","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",12,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the core process claimed for producing nylon 66 high-strength, high-elastic-modulus fiber?","Question",{"text":113,"@type":114},"The claims require thermal treatment of nylon 66 fiber prepared by high-speed spinning under tightly defined tension, oxygen-free atmosphere, and temperature constraints, followed by quenching in a cooling zone controlled below the glass transition temperature.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"What conditions are specified for thermal treatment in Claim 1?",{"text":118,"@type":114},"Claim 1 specifies fiber-axis tension above 0.5 g/d and below 0.99T g/d, an atmosphere practically without oxygen, and a thermal-treatment temperature above Tm1 but below Tra3.",{"name":120,"@type":111,"acceptedAnswer":121},"Which additional parameters are covered by dependent claims?",{"text":122,"@type":114},"Dependent claims add limits such as spinning speed (e.g., 5,500 m/min or faster), quenching cooling speed thresholds (e.g., 10 C/sec or higher), vacuum heat treatment, specific temperature ranges for thermal treatment, and repeating the heat-treatment/quenching procedure twice.","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},321597,1790216712,{"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},549758146520,"https://ap-avatar.wpscdn.com/avatar/80002397d8c0411e94?_k=1775819394049821470","Fukui,M.,and T.Kuriki  \nProcess for the production of nylon 66fiber of high strength and elastic modulus.14 p.  \nPatent(Japanese)No.59-26517(1984).Filed:  TRANSLATION NO.4451  \nT R AN S L AT I 0N  \nPATENT BUREAU OF JAPAN  \nOFFICIAL GAZETTE FOR UNEXAMINED PATENTS  \nJapanese Patent Application Publication Kokai:59-25517(1984)  \nPublication Date:February 10,1984  \nNumber of Invention:1  \n(Total of 9 pages)  \nRequest for Examination:  \n(Not yet requested).  \nInternational ClassD 01 F6/60  \nPROCESS FOR THE PRODUCTION OF NYLON 66 FIBER OF HIGH STRENGTH AND ELASTIC MODULUS  \nApplication Number:57-132952(1982)  \nApplication Date:July 31,1982  \nInventors:M.Fukui  \nc/o Asahi Kasei Kogyo K.K.11-7 Hacchonawate-choTakatsuki City  \nT.Kuriki(same as above)  \nApplicant:Asahi Kasei Kogyo K.K..1-2-6 DojimahamaKita-ku,Osaka City  \nPatent Attorney:A.Aoki and 3 others  \nSPECIFICATION  \n# 1·  Title of Invention\n\nProcess for the production of nylon 66 fiber of high strength and elasticmodulus  \n2·Claims  \n1.Process for the production of nylon 66 fiber of high strength andelastic modulus characterized,in the case of thermal treatment of nylon 66fiber prepared by spinning at 4000 m/min or faster,by carrying out the thermal  \nhttps://archive.org/details/processforproducOOfuku  \ntreatment under the following conditions;  \n(1)the tension applied on the fiber in the fiber axis direction is above  \n0.5 g/d but below 0.99T g/de(d:denier and T:fiber fracture tension),  \n(2)the atmosphere is practically without any oxygen,and  \n(3)the thermal treatment temperature is above Tm₁(temperature at_which thefusion curve leaves from the base line)but below Tra3 (temperature at which thefusion is completed.)  \nin a heating zone of the length见(mm)in the fiber axis direction of  \n1≤  ≤1+(4v +5d)/1.5日[where v is the treatment speed(mm/min),dis thefiber denier,and θ is the treatment temperature(C)]and immediately carryingout a quenching treatment in a cooling zone controlled at temperature below theglass transition temperature.  \n2.A process for the production of nylon 66 fiber of high strength andelastic modulus ofin which the spinning speed is 5,500 m/min orfaster.  \n3.A process for the production of nylon 66 fiber of high strength andelastic modulus of Claim 1 in which the quenching treatment is carried out withthe cooling speed of 10 C/sec or higher.  \n4.A process for the production of nylon 66:fiber of high strength andelastic modulus of Claim 1 or Claim 2 in which the heat treatment is carried outunder vacuum.  \n5.A process for the production of nylon 66 fiber of high strength andelastic nodulus of Claim 1 in which the thermal treatment of spun yarn tgcarried out in the heating zone at a tenperature in the range of Tm2 and_Tm3 andsubsequently the yarn is quenched with the cooling speed of 20 C/sec:  \n6.A process for the production of nylon 66 fiber of high strength andelastic modulus of Claim1-Claim 5 in which the heat treatment-quenchingprocedures of the spun fiber are repeated twice.  \nThis invention pertains to a process for the production of nylon 66 fiberhaving a special structure.  \nThe strength,elastic modulus,fatigue resistance and adhesion to rubber ofnylon 66 are excellent compared with other fibers,and thus,it is used as atire cord fiber or reinforcing material of various resins.However,as a resultof recent improvement and development of other fibers,some fibers have theseproperties except the adhesion close to those of nylon 66.Therefore,it isstrongly desirable to develop nylon 66 fiber with its excellent adhesionutilized and having higher strength and elastic modulus than ever.  \nThe physical properties of tire cord have been improved previously by coldor hot drawing.However,the mechanical physical properties of the cord preparedare difficult to maintain at a satisfactory level after the adhesion to rubberat high tenperature or use for a long period.If this phenomenon is elucidated  \nwith respect to the superfine structure of fiber,the tying molecule(st","cbCaiuCqtJswR1Lg","https://ap.wps.com/l/cbCaiuCqtJswR1Lg","pdf",1366964,32,"English","# 1· Title of Invention\n# 2· Claims\n## Claim 1\n## Claims 2-6","[{\"question\":\"What is the core process claimed for producing nylon 66 high-strength, high-elastic-modulus fiber?\",\"answer\":\"The claims require thermal treatment of nylon 66 fiber prepared by high-speed spinning under tightly defined tension, oxygen-free atmosphere, and temperature constraints, followed by quenching in a cooling zone controlled below the glass transition temperature.\"},{\"question\":\"What conditions are specified for thermal treatment in Claim 1?\",\"answer\":\"Claim 1 specifies fiber-axis tension above 0.5 g/d and below 0.99T g/d, an atmosphere practically without oxygen, and a thermal-treatment temperature above Tm1 but below Tra3.\"},{\"question\":\"Which additional parameters are covered by dependent claims?\",\"answer\":\"Dependent claims add limits such as spinning speed (e.g., 5,500 m/min or faster), quenching cooling speed thresholds (e.g., 10 C/sec or higher), vacuum heat treatment, specific temperature ranges for thermal treatment, and repeating the heat-treatment/quenching procedure twice.\"}]","PROCESS FOR THE PRODUCTION OF NYLON 66 FIBER OF HIGH STRENGTH AND ELASTIC MODULUS - Claims - Patent specification | PDF",1789959763,81]