JPS57103818A - Polyamide type biaxially stretched film - Google Patents
Polyamide type biaxially stretched filmInfo
- Publication number
- JPS57103818A JPS57103818A JP17892680A JP17892680A JPS57103818A JP S57103818 A JPS57103818 A JP S57103818A JP 17892680 A JP17892680 A JP 17892680A JP 17892680 A JP17892680 A JP 17892680A JP S57103818 A JPS57103818 A JP S57103818A
- Authority
- JP
- Japan
- Prior art keywords
- film
- polyhexamethyleneisophthalamide
- substrate
- stretched film
- biaxially stretched
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE: To obtain said film having Charpy impact strength within the specified range and excellent tearability, transparency, high rigidity, flatness and appropriate water absorption etc., by mixing aliphatic polyamide and polyhexamethyleneisophthalamide in the specified ratio.
CONSTITUTION: 50W10wt% of aliphatic polyamide (e.g. nylon-6 etc.) and 50W 90wt% of polyhexamethyleneisophthalamide (amorphous aromatic polyamide which is obtained by condensation of hexamethylenediamine with carboxylic acid containing more than 50mol% of isophthalic acid) are mixed and melt extruded preferably at 220W270°C, then cooled to below 45°C and made into unstretched film. Next, after being stretched biaxially, it is heat treated preferably at 130W 190°C and the aimed film of 30W100kg.cm/mm Charpy impact strength is obtained.
USE: Substrate for adhesive tape, substrate for movie film.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17892680A JPS57103818A (en) | 1980-12-19 | 1980-12-19 | Polyamide type biaxially stretched film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17892680A JPS57103818A (en) | 1980-12-19 | 1980-12-19 | Polyamide type biaxially stretched film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57103818A true JPS57103818A (en) | 1982-06-28 |
Family
ID=16057050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17892680A Pending JPS57103818A (en) | 1980-12-19 | 1980-12-19 | Polyamide type biaxially stretched film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57103818A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4486507A (en) * | 1981-05-14 | 1984-12-04 | Feldmuhle Aktiengesellschaft | Transparent, shrinkable film, consisting of one or several layers |
-
1980
- 1980-12-19 JP JP17892680A patent/JPS57103818A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4486507A (en) * | 1981-05-14 | 1984-12-04 | Feldmuhle Aktiengesellschaft | Transparent, shrinkable film, consisting of one or several layers |
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