HIGH TENACITY, HIGH MODULUS POLYAMIDE YARN AND PROCESS FOR MAKING SAME
A yarn comprised of a polyamide which is at least about 85% poly(hexamethylene adipamide) or poly( epsilon -caproamide) is disclosed which has a relative viscosity of greater than about 50, a tenacity of greater than about 11.0 g/d, a dry heat shrinkage at 160 DEG C of not more than about 6.5 percen...
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| creator | THOMAS RUSSELL CLARK III JOSEPH ARNOLD COFER JR |
| description | A yarn comprised of a polyamide which is at least about 85% poly(hexamethylene adipamide) or poly( epsilon -caproamide) is disclosed which has a relative viscosity of greater than about 50, a tenacity of greater than about 11.0 g/d, a dry heat shrinkage at 160 DEG C of not more than about 6.5 percent, a boil-off shrinkage of less than about 7%, a modulus of greater than about 35 g/d, a birefringence of greater than about 0.060, a differential birefringence D: DELTA .90-.00, of greater than 0, and a sonic modulus of greater than about 90 g/d. The process for making the yarn includes drawing of a feed yarn while heating to at least about 185 DEG C in at least a final draw stage to a draw tension of at least 3.8 g/d, subsequently decreasing the tension while heating to at least about 185 DEG C to produce a length decrease of between about 2 and about 13.5, and cooling and packaging the yarn. |
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The process for making the yarn includes drawing of a feed yarn while heating to at least about 185 DEG C in at least a final draw stage to a draw tension of at least 3.8 g/d, subsequently decreasing the tension while heating to at least about 185 DEG C to produce a length decrease of between about 2 and about 13.5, and cooling and packaging the yarn.</description><edition>5</edition><language>eng</language><subject>APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS ; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS ; FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE ; MECHANICAL FINISHING OF YARNS OR ROPES ; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS ; NATURAL OR ARTIFICIAL THREADS OR FIBRES ; SPINNING ; TEXTILES ; WARPING OR BEAMING ; YARNS</subject><creationdate>1991</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=19910426&DB=EPODOC&CC=AU&NR=6482690A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910426&DB=EPODOC&CC=AU&NR=6482690A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>THOMAS RUSSELL CLARK III</creatorcontrib><creatorcontrib>JOSEPH ARNOLD COFER JR</creatorcontrib><title>HIGH TENACITY, HIGH MODULUS POLYAMIDE YARN AND PROCESS FOR MAKING SAME</title><description>A yarn comprised of a polyamide which is at least about 85% poly(hexamethylene adipamide) or poly( epsilon -caproamide) is disclosed which has a relative viscosity of greater than about 50, a tenacity of greater than about 11.0 g/d, a dry heat shrinkage at 160 DEG C of not more than about 6.5 percent, a boil-off shrinkage of less than about 7%, a modulus of greater than about 35 g/d, a birefringence of greater than about 0.060, a differential birefringence D: DELTA .90-.00, of greater than 0, and a sonic modulus of greater than about 90 g/d. The process for making the yarn includes drawing of a feed yarn while heating to at least about 185 DEG C in at least a final draw stage to a draw tension of at least 3.8 g/d, subsequently decreasing the tension while heating to at least about 185 DEG C to produce a length decrease of between about 2 and about 13.5, and cooling and packaging the yarn.</description><subject>APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS</subject><subject>CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS</subject><subject>FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE</subject><subject>MECHANICAL FINISHING OF YARNS OR ROPES</subject><subject>MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS</subject><subject>NATURAL OR ARTIFICIAL THREADS OR FIBRES</subject><subject>SPINNING</subject><subject>TEXTILES</subject><subject>WARPING OR BEAMING</subject><subject>YARNS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1991</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHDz8HT3UAhx9XN09gyJ1FEAc339XUJ9QoMVAvx9Ih19PV1cFSIdg_wUHP1cFAKC_J1dg4MV3PyDFHwdvT393BWCHX1deRhY0xJzilN5oTQ3g7yba4izh25qQX58anFBYnJqXmpJvGOomYmFkZmlgaMxYRUA4RgrQw</recordid><startdate>19910426</startdate><enddate>19910426</enddate><creator>THOMAS RUSSELL CLARK III</creator><creator>JOSEPH ARNOLD COFER JR</creator><scope>EVB</scope></search><sort><creationdate>19910426</creationdate><title>HIGH TENACITY, HIGH MODULUS POLYAMIDE YARN AND PROCESS FOR MAKING SAME</title><author>THOMAS RUSSELL CLARK III ; JOSEPH ARNOLD COFER JR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU6482690A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1991</creationdate><topic>APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS</topic><topic>CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS</topic><topic>FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE</topic><topic>MECHANICAL FINISHING OF YARNS OR ROPES</topic><topic>MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS</topic><topic>NATURAL OR ARTIFICIAL THREADS OR FIBRES</topic><topic>SPINNING</topic><topic>TEXTILES</topic><topic>WARPING OR BEAMING</topic><topic>YARNS</topic><toplevel>online_resources</toplevel><creatorcontrib>THOMAS RUSSELL CLARK III</creatorcontrib><creatorcontrib>JOSEPH ARNOLD COFER JR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>THOMAS RUSSELL CLARK III</au><au>JOSEPH ARNOLD COFER JR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>HIGH TENACITY, HIGH MODULUS POLYAMIDE YARN AND PROCESS FOR MAKING SAME</title><date>1991-04-26</date><risdate>1991</risdate><abstract>A yarn comprised of a polyamide which is at least about 85% poly(hexamethylene adipamide) or poly( epsilon -caproamide) is disclosed which has a relative viscosity of greater than about 50, a tenacity of greater than about 11.0 g/d, a dry heat shrinkage at 160 DEG C of not more than about 6.5 percent, a boil-off shrinkage of less than about 7%, a modulus of greater than about 35 g/d, a birefringence of greater than about 0.060, a differential birefringence D: DELTA .90-.00, of greater than 0, and a sonic modulus of greater than about 90 g/d. The process for making the yarn includes drawing of a feed yarn while heating to at least about 185 DEG C in at least a final draw stage to a draw tension of at least 3.8 g/d, subsequently decreasing the tension while heating to at least about 185 DEG C to produce a length decrease of between about 2 and about 13.5, and cooling and packaging the yarn.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE MECHANICAL FINISHING OF YARNS OR ROPES MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES WARPING OR BEAMING YARNS |
| title | HIGH TENACITY, HIGH MODULUS POLYAMIDE YARN AND PROCESS FOR MAKING SAME |
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