BIODEGRADABLE ALIPHATIC POLYESTER DRAWN YARN AND METHOD FOR PRODUCING THE SAME
PROBLEM TO BE SOLVED: To stably provide a biodegradable aliphatic polyester drawn yarn having high strength and high toughness.SOLUTION: (A) A biodegradable aliphatic polyester drawn yarn has a molecular weight retention of 75% or more with respect to a biodegradable aliphatic polyester resin raw ma...
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| creator | KIMIZU MITSUGI SATO HIROYUKI YAMAZAKI MASAHIRO KAMIYA ATSUSHI SAEGUSA KOTAKU OKUMURA KO |
| description | PROBLEM TO BE SOLVED: To stably provide a biodegradable aliphatic polyester drawn yarn having high strength and high toughness.SOLUTION: (A) A biodegradable aliphatic polyester drawn yarn has a molecular weight retention of 75% or more with respect to a biodegradable aliphatic polyester resin raw material; (B) the biodegradable aliphatic polyester drawn yarn is formed by drawing a biodegradable aliphatic polyester undrawn yarn whose extension rate λsatisfies the condition represented by the following formula (i): 1.0≤λ≤2.0 (i); (C) the draw ratio relative to the undrawn yarn λsatisfies the condition represented by the following formula (ii): 3.3≤λ(ii); (D) the network draw ratio λsatisfies the condition represented by the following formula (iii): 3.5≤λ≤20.0 (iii); and (E) the tensile strength (unit: cN/dtex) and the tensile elongation (unit: %) satisfy the condition represented by the following formula (iv): (tensile strength)×(tensile elongation)≥30 (iv). |
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(B) the biodegradable aliphatic polyester drawn yarn is formed by drawing a biodegradable aliphatic polyester undrawn yarn whose extension rate λsatisfies the condition represented by the following formula (i): 1.0≤λ≤2.0 (i); (C) the draw ratio relative to the undrawn yarn λsatisfies the condition represented by the following formula (ii): 3.3≤λ(ii); (D) the network draw ratio λsatisfies the condition represented by the following formula (iii): 3.5≤λ≤20.0 (iii); and (E) the tensile strength (unit: cN/dtex) and the tensile elongation (unit: %) satisfy the condition represented by the following formula (iv): (tensile strength)×(tensile elongation)≥30 (iv).</abstract><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 NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES WARPING OR BEAMING YARNS |
| title | BIODEGRADABLE ALIPHATIC POLYESTER DRAWN YARN AND METHOD FOR PRODUCING THE SAME |
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