JP2013213170A5 - - Google Patents
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- JP2013213170A5 JP2013213170A5 JP2012085128A JP2012085128A JP2013213170A5 JP 2013213170 A5 JP2013213170 A5 JP 2013213170A5 JP 2012085128 A JP2012085128 A JP 2012085128A JP 2012085128 A JP2012085128 A JP 2012085128A JP 2013213170 A5 JP2013213170 A5 JP 2013213170A5
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- Prior art keywords
- resistance
- ethylene block
- propylene
- transparency
- block copolymer
- Prior art date
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Description
［実施例と比較例の結果の考察］
表４における実施例１〜１８から明らかなように、本発明によるプロピレン−エチレンブロック共重合体（Ａ）およびプロピレン−エチレンブロック共重合体（Ｂ）を含有する組成物からのフィルムは、無臭性、耐熱性、耐落下破袋性、レトルト処理後のとりわけ低温における耐衝撃性、加熱後の透明性維持のバランス確保に加え、耐ベタツキ性にも優れている（実施例１〜１８）。
一方で、プロピレン−エチレンブロック共重合体（Ａ）のみからなるフィルムは、透明性には優れるものの耐寒衝撃性に劣り、フィルムのベタツキが抑制できない（比較例１、７）。また、プロピレン−エチレンブロック共重合体（Ｂ）のみからなるフィルムでは、耐寒衝撃性に優れるものの透明性に劣る（比較例１２、１３）。
また、ポリプロピレン−エチレンブロック共重合体（Ａ）および（Ｂ）の一方または両方が、本発明の請求項１の各要件を満たさない組成物である場合、透明性、耐熱性、耐寒衝撃性、耐ベタツキ性の各特性をバランスよく確保することが出来ない。
[Consideration of results of Examples and Comparative Examples]
As apparent from Examples 1 to 18 in Table 4, films from the composition containing the propylene-ethylene block copolymer (A) and the propylene-ethylene block copolymer (B) according to the present invention are odorless. In addition to ensuring balance between heat resistance, drop bag resistance, impact resistance particularly at low temperatures after retorting, and maintaining transparency after heating, it is also excellent in stickiness resistance (Examples 1 to 18).
On the other hand, a film composed only of the propylene-ethylene block copolymer (A) is excellent in transparency but inferior in cold shock resistance and cannot suppress stickiness of the film (Comparative Examples 1 and 7). Moreover, in the film which consists only of a propylene-ethylene block copolymer (B), although it is excellent in cold impact resistance, it is inferior to transparency (Comparative Examples 12 and 13 ).
When one or both of the polypropylene-ethylene block copolymers (A) and (B) is a composition that does not satisfy the requirements of claim 1 of the present invention, transparency, heat resistance, cold impact resistance, Each characteristic of stickiness resistance cannot be secured in a well-balanced manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012085128A JP5807605B2 (en) | 2012-04-04 | 2012-04-04 | Polypropylene resin composition for packaging film of heat sterilized food and packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012085128A JP5807605B2 (en) | 2012-04-04 | 2012-04-04 | Polypropylene resin composition for packaging film of heat sterilized food and packaging film |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013213170A JP2013213170A (en) | 2013-10-17 |
| JP2013213170A5 true JP2013213170A5 (en) | 2014-08-07 |
| JP5807605B2 JP5807605B2 (en) | 2015-11-10 |
Family
ID=49586761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012085128A Active JP5807605B2 (en) | 2012-04-04 | 2012-04-04 | Polypropylene resin composition for packaging film of heat sterilized food and packaging film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5807605B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6331720B2 (en) * | 2014-06-04 | 2018-05-30 | 日本ポリプロ株式会社 | Polypropylene resin composition for battery packaging and film |
| JP2020203987A (en) * | 2019-06-18 | 2020-12-24 | 凸版印刷株式会社 | Polypropylene-based resin composition, polypropylene-based film and packaging material, and package |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3934238B2 (en) * | 1998-03-03 | 2007-06-20 | 日本ポリプロ株式会社 | Laminated bags for food packaging |
| JP5342115B2 (en) * | 2007-06-27 | 2013-11-13 | 三井化学株式会社 | Propylene resin composition for packaging materials |
| JP5260846B2 (en) * | 2006-08-11 | 2013-08-14 | 三井化学株式会社 | Propylene resin composition for packaging materials |
| JP5525847B2 (en) * | 2009-03-17 | 2014-06-18 | 日本ポリプロ株式会社 | Propylene-based multilayer sheet and packaging bag for pressure treatment using the same |
| CN103108911B (en) * | 2010-09-17 | 2015-04-22 | 日本聚丙烯株式会社 | Propylene resin sheet and heat processing packaging body using same |
-
2012
- 2012-04-04 JP JP2012085128A patent/JP5807605B2/en active Active
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