Preparation method of steaming-resisting and boiling-resisting poly(vinylidene chloride) (PVDC) waterborne emulsion
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG QUZHOU JUSU CHEM IND CO LTD
- Publication Date
- 2013-02-13
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Abstract
Description
technical field
[0001] The invention relates to a method for preparing a PVDC copolymer emulsion, more specifically, the invention relates to a method for preparing a retort-resistant PVDC aqueous emulsion. Background technique
[0002] Polyvinylidene chloride (PVDC) polymer material, as a packaging material with good comprehensive barrier properties, is safe and non-toxic, and has a wide range of applications in the field of food packaging. The application technology of general-purpose PVDC emulsion in food coating film BOPP and BOPET film is mature. However, there are following deficiencies in the packaging of boiled fruits and vegetables and fresh food:
[0003] 1. The packaged food provided needs to be cooked and processed by consumers before they can be eaten, which is a waste of time;
[0004] 2. The food provided has not been sterilized by high temperature and has a limited shelf life;
[0005] 3. The packaging is opaque, and the packaged objects cannot be seen. ...