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Vinylidene chloride polymer composition comprising at least one allyl cinnamate

A technology of vinylidene chloride and cinnamate, which is applied to special packaging items, packaging item types, packaging, etc., and can solve problems such as seldom use

Active Publication Date: 2018-12-21
SOLVAY SA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, formulations of PVDC with dienophiles (other than those mentioned above) have so far been rarely used

Method used

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  • Vinylidene chloride polymer composition comprising at least one allyl cinnamate
  • Vinylidene chloride polymer composition comprising at least one allyl cinnamate
  • Vinylidene chloride polymer composition comprising at least one allyl cinnamate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0079] The following reagents were used in these examples:

[0080] Masterbatch (M / B) of PVDC composition: VDC / MA copolymer having a VDC / MA weight ratio of 92 / 8, commercially available as PV910TAX5A-24-01, and containing trace amounts of additives (from Solvay Company (Solvay));

[0081] Dienophiles (both available from Aldrich);

[0082] Methyl trans-cinnamate (CAS No. 1754-62-7; purity 99%);

[0083] Ethyl trans-cinnamate (CAS No. 103-36-6; purity 99%);

[0084] Cinnamyl cinnamate (CAS No. 122-69-0; purity ≥ 95%);

[0085] Allyl cinnamate (CAS No. 1866-31-5; purity ≥99%).

[0086] Fabrication of PVDC monolayers incorporating different dienophiles:

[0087] 98wt% of the PVDC composition incorporating 2wt% of different dienophiles was injected by using an extruder (D=19mm, L / D ratio of the screw=20) with a sheet die of 200x0.6mm M / B extrusion to produce monolayer films of PVDC compositions. Upon exiting the die, the films were cooled to be quenched and stretched to a g...

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Abstract

The invention pertains to an improved PVDC composition including certain cinnamate dienophiles qualified for food contact, which possess an optimized balance of effectiveness in preventing discoloration upon exposure to radiation, with no negative impact on the barrier properties, in particular cinnamates of formula (I), wherein: - each of R1, R2, R3, equal to or different from each other, is H ora C1-C12 hydrocarbon group, to layers made therefrom, to multi-layer assemblies comprising the same, and to the use of said assemblies for packaging, in particular for packaging foodstuffs.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from European Application No. 15306884.6 filed on November 27, 2015, the entire content of which is hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to vinylidene chloride polymer compositions with specific dienophiles as additives, suitable for use in the manufacture of flexible films for packaging articles therein. Furthermore, the invention relates to a flexible film having a plurality of layers including a barrier layer having properties preventing the molecular diffusion of gases and / or vapours, made of said vinylidene chloride polymer composition. Specific dienophile additives included in the vinylidene chloride polymer composition protect the barrier film from degradation of the film structure caused by heat, light (eg UV radiation) and / or electron beam irradiation. Background technique [0004] Vinylidene chloride polymer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08K5/101B32B7/12B32B27/08B32B27/30B32B27/32C08L27/08
CPCB32B7/12B32B23/08B32B23/20B32B27/08B32B27/302B32B27/304B32B27/306B32B27/308B32B27/32B32B27/34B32B27/36C08J5/18B32B2250/02B32B2250/03B32B2250/24B32B2250/246B32B2250/40B32B2307/40B32B2307/7244B32B2439/46B32B2439/70B32B2439/80C08J2327/08B29C48/10B29C48/0018C08K5/101C08L27/08B29C48/335B65D65/40C07C57/44C07C69/618B29K2027/08C08F14/08
Inventor E.肖韦D.吉梅斯Y.吉尔朗夫A.查普托特J.维纳P.德瓦尔Y.范德维肯
Owner SOLVAY SA
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