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Polyalkylene carbonate-based resin film

A polyalkylene carbonate and alkylene carbonate technology, applied in the field of resin films, can solve problems such as cost increase, and achieve the effects of improving mechanical properties, excellent compatibility, and excellent elongation properties

Active Publication Date: 2021-12-28
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method must produce a copolymer with a new structure, and the problem is that the cost increases compared with using polylactic acid

Method used

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  • Polyalkylene carbonate-based resin film
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  • Polyalkylene carbonate-based resin film

Examples

Experimental program
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Effect test

preparation example Construction

[0076] The preparation method of the polyketone resin is not particularly limited, for example, the polyketone resin is prepared by reacting carbon monoxide with a compound containing an unsaturated double bond. More recently, it can be prepared in the form of alternating copolymers in which repeat units consisting of carbon monoxide and at least one or more ethylenically unsaturated hydrocarbons are linked alternately.

[0077] The melt index (MI) of the polyketone resin may be 3-8, preferably 5-7. When the above range is satisfied, the compatibility with polyalkylene carbonate is excellent, and the processability of the film can be improved.

[0078] Preferably, the polyketone resin is an aliphatic polyketone containing ethylene, propylene, isopropylene or butylene units. It is more preferred to use the form of copolymers or terpolymers containing at least one of these repeating units.

[0079] In addition, the polyketone resin may have a weight average molecular weight of...

preparation Embodiment 1

[0092] Preparation Example 1: Preparation of Polyalkylene Carbonate Resin (A1, PEC)

[0093] Polyethylene carbonate resins were prepared by copolymerizing ethylene oxide and carbon dioxide using a diethylzinc catalyst as follows (Journal of Polymer Science B 1969, 7, 287; Journal of Controlled release 1997, 49, 263).

[0094] 1 g of dry diethylzinc catalyst and 10 mL of dioxane solvent were introduced into an autoclave reactor equipped with a stirrer, and then 0.1 g of diluted purified water was added to 5 mL of dioxane solvent while stirring slowly. Subsequently, carbon dioxide was charged into the reactor to a pressure of about 10 atm, and then the solution was stirred at 120° C. for 1 hour. Then, 10 g of purified ethylene oxide was added, carbon dioxide was charged again to a pressure of about 50 atm, and then the temperature was adjusted to 60° C. and the reaction was carried out for about 48 hours. After the reaction, unreacted ethylene oxide was removed under low pres...

preparation Embodiment 2

[0096] Preparation Example 2: Preparation of Polyketone Resin (B1, PK)

[0097] Polyketone (Hyosung, M620A) pellets were used, and the MI of the ketone resin was 6.

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Abstract

The present invention relates to a polyalkylene carbonate-based resin film. More specifically, the present invention relates to a polyalkylene carbonate-based resin film comprising a blended resin in which a polyalkylene carbonate resin and a polyketone resin are mixed in a specific amount so that Ensures excellent tensile and tear strength without deteriorating the elongation properties of polyalkylene carbonate resins.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2016-0180486 filed on December 27, 2016 and Korean Patent Application No. 10-2017-0180266 filed on December 26, 2017 with the Korean Intellectual Property Office rights and interests, the disclosure of which is incorporated herein by reference in its entirety. [0003] The present invention relates to a polyalkylene carbonate-based resin film comprising a polyalkylene carbonate-based resin in which physical properties of the polyalkylene carbonate resin are supplemented. Background technique [0004] Since plastics are easy to manufacture and easy to use, plastics are used as materials for various products, for example, they are used in various fields such as disposable products such as packaging films, disposable cups and disposable tableware, etc., as well as construction materials and automobiles interior material. [0005] In p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L73/00C08G64/02C08J5/18
CPCC08J5/18C08L73/00C08J2429/14C08J2369/00C08J2467/04C08L69/00C08G64/02C08J2473/00
Inventor 金铉玟赵贤朱金成庚朴胜莹
Owner LG CHEM LTD
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