发明名称 |
BIAXIALLY ORIENTED POLYAMIDE-BASED RESIN FILM, AND PRODUCTION METHOD THEREFOR |
摘要 |
To provide a biaxially oriented polyamide-based resin film being excellent in laminate strength, pin-hole resistance under a low-temperature environment, impact resistance, and transparency, and which retains satisfactory a good external appearance even after being sterilized in hot water. A biaxially oriented polyamide-based resin film comprising a polyamide resin and 1 to 5% by mass of a polyamide-based block copolymer, wherein the polyamide-based block copolymer comprises a hard part including a residue of cyclic lactam having 4 to 10 carbon atoms, and a soft part including a residue of polyoxypropylene glycol or polyoxytetramethylene glycol having a weight average molecular weight of 500 to 3000, and the content X of the hard part and the content Y and the weight average molecular weight Mw of the soft part satisfy the following formulae (1) and (2):;X+Y=100 (parts by mass) (1);478.74×Mw−0.2989≦Y≦93 (parts by mass) (2). |
申请公布号 |
US2014329078(A1) |
申请公布日期 |
2014.11.06 |
申请号 |
US201214356288 |
申请日期 |
2012.12.03 |
申请人 |
TOYOBO CO., LTD. |
发明人 |
Miyaguchi Yoshinori;Maruyama Gaku;Ishikura Takanori |
分类号 |
C08J5/18;B29C55/14 |
主分类号 |
C08J5/18 |
代理机构 |
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代理人 |
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主权项 |
1. A biaxially oriented polyamide-based resin film comprising a polyamide resin and 1 to 5% by mass of a polyamide-based block copolymer, wherein the polyamide-based block copolymer comprises a hard part including a residue of cyclic lactam having 4 to 10 carbon atoms, and a soft part including a residue of polyoxypropylene glycol or polyoxytetramethylene glycol having a weight average molecular weight of 500 to 3000, and the content X of the hard part and the content Y and the weight average molecular weight Mw of the soft part satisfy the following formulae (1) and (2):
X+Y=100 (parts by mass) (1) 478.74×Mw−0.2989≦Y≦93 (parts by mass) (2). |
地址 |
Osaka-shi, Osaka JP |