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Unoriented film based on soft polypropylene

An unoriented, thin-film technology, applied in the field of new unoriented thin films and their preparation, can solve the problems of large changes in the properties of standard heterogeneous systems

Active Publication Date: 2016-08-24
BOREALIS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, it has been demonstrated that the properties of standard heterogeneous systems change considerably after sterilization

Method used

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  • Unoriented film based on soft polypropylene
  • Unoriented film based on soft polypropylene
  • Unoriented film based on soft polypropylene

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0294] The present invention is further illustrated by examples below.

[0295] example

[0296] 1. Measurement method

[0297] Unless otherwise defined, the following definitions of terms and determination methods apply to the above general description of the invention as well as to the following examples.

[0298] Calculation of the comonomer content of the second propylene copolymer fraction (R-PP2):

[0299] C ( PP ) - w ( PP 1 ) xC ( PP 1 ) w ( PP 2 ) = C ( PP 2 ...

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PUM

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Abstract

An unoriented film comprising at least one layer of a polymer composition comprising a styrenic elastomer and a propylene copolymer.

Description

technical field [0001] The present invention relates to a new unoriented film and its preparation. Background technique [0002] There is a growing trend in the food packaging industry to use plastic containers, especially bags containing sterilized or deli food. Sterilization bags offer many advantages over hard metal packaging, such as faster cooking / sterilization times, smaller spare storage space, easier handling, improved food taste, etc. A typical bag has a multi-layer structure using polyolefin (such as polyethylene or polypropylene), adhesive, membrane and outer layers. Polyolefin materials are required to provide stiffness as well as high impact strength to the final packaging material. [0003] The same trend, namely the increasing use of polyolefin materials, is also occurring in the pharmaceutical packaging industry. Likewise, the polymer should provide sufficient stiffness as well as high impact strength to the final packaging material. In the case of medica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/14B32B27/32C08J5/18
CPCB32B27/32C08J5/18C08L23/14B32B2323/10C08J2323/14C08L2207/14C08L2205/025C08L2205/03C08L2203/16C08L53/025C08L53/02Y10T428/31938Y10T428/1397C08L53/00C08L25/04C08L23/16
Inventor 克劳斯·贝恩赖特纳马库斯·加莱特纳曼弗雷德·格鲁恩伯格马蒂纳·桑德霍泽
Owner BOREALIS AG