• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A polymer film, comprising at least one active layer made of a composition containing: a polymeric substrate comprising at least one of the polyolefin polymer and polyamide 6, and a coniferous resin acid(s) dispersed in the polymeric substrate, wherein the active layer constitutes at least one skin of the polymer film.
    公开号:FI20195509A1
    申请号:FI20195509
    申请日:2019-06-13
    公开日:2020-07-31
    发明作者:Ville Mylläri；Kari Alha
    申请人:Premix Oy；
    IPC主号:
    专利说明:

    ANTIMICROBIAL POLYMER FILM AND USE
    BACKGROUND The invention relates to a polymer film comprising conif- erous resin acid(s) dispersed in the polymeric substrate.
    The invention further relates to a use of the polymer film. The demand for materials inhibiting or delaying spoilage of agricultural products or food products 1s constantly growing.
    BRIEF DESCRIPTION Viewed from a first aspect, there can be provided polymer film, comprising - at least one active layer made of a composition containing: - a polymeric substrate comprising at least one of the polyolefin polymer and polyamide 6,and - a coniferous resin acid(s) dispersed in the pol- ymeric substrate, wherein - the active layer constitutes at least one skin of the polymer film. > An advantage is that a polymer film inhibiting or delaying N 25 spoilage of agricultural products or food products may be S achieved.
    O Ir Viewed from a further aspect, there can be provided an ag- a ricultural film comprising the polymer film as defined 3 30 above.
    O > An advantage is that a polymer film inhibiting or delaying spoilage of agricultural products may be achieved.
    Viewed from a further aspect, there can be provided a use of polymer film as defined above for covering silage. An advantage is that a polymer film inhibiting or delaying spoilage of silage may be achieved. Viewed from a further aspect, there can be provided a use of polymer film as defined above for covering growing plant (s).
    An advantage is that a usage for inhibiting or delaying spoilage of growing plant (s) may be achieved. Viewed from a further aspect, there can be provided a food packaging film comprising the polymer film as defined above. An advantage is that a polymer film inhibiting or delaying spoilage of food products may be achieved.
    Viewed from a still further aspect, there can be provided a use of polymer film as defined above for covering food product. An advantage is that a usage for inhibiting or delaying > spoilage of food products may be achieved. g > The polymer film and the use are characterised by what is <Q stated in the independent claims. Some other embodiments - 30 are characterised by what is stated in the other claims. E Inventive embodiments are also disclosed in the specifica- 2 tion and drawings of this patent application. The in- O ventive content of the patent application may also be de- 2 fined in other ways than defined in the following claims. N 35 The inventive content may also be formed of several sepa- rate inventions, especially if the invention is examined in the light of expressed or implicit sub-tasks or in view of obtained benefits or benefit groups. Some of the defi- nitions contained in the following claims may then be un- necessary 1n view of the separate inventive ideas. Fea- tures of the different embodiments of the invention may, within the scope of the basic inventive idea, be applied to other embodiments. Coniferous resins acids are advantageously available in rosin, such as in spruce resin, and tall oil fraction ob- tained as a by-product of a kraft pulping process of wood. Rosin primarily includes abietic acid type, e.g. abietic acid, dehydro abietic acid, and pimaric acid type, e.g. pimaric acid, isopimaric acid, resin acids.
    Generally, coniferous resin acid(s) are available in a wide variety of sources. Coniferous resin acids are typi- cally of spruce or pine origin. For example, coniferous resin acids are provided as “resin” or “rosin”. According to a definition found in the literature, “resin” is a sol- id or highly viscous substance of plant or synthetic origin. Resin is usually a mixture of organic compounds. According to a definition, “rosin” is a solid form of res- in produced by heating fresh liquid of resin to vaporize > the volatile liquid terpene components. Rosin is also O called colophony. The terms resin, rosin and colophony are > also used synonymously in the literature. <Q
    O — 30 In the present invention, coniferous resin acids can be E originated from any source. In an embodiment, the resin o acids are provided in a highly viscous form of native res- 3 in found on the trunk, stub and branches of coniferous 2 trees. This form of resin acids is called as “resin” in N 35 the present invention.
    The term “silage” is fermented, high-moisture stored fod- der which can be fed to cattle, sheep and other such rumi- nants (cud-chewing animals) or used as a biofuel feedstock for anaerobic digesters. It is fermented and stored in a process called ensilage, ensiling or silaging, and is usu- ally made from grass crops, including maize, sorghum or other cereals, using the entire green plant (not just the grain). Silage can be made from many field crops, and spe- cial terms may be used depending on type: oatlage for oats, haylage for alfalfa, etc. Silage is made by one or more of the following methods: placing cut green vegetation in a silo or pit; piling the vegetation in a large heap and compressing it down so as to purge as much oxygen as possible, then covering it with a plastic sheet; or by wrapping large round bales tightly in plastic film. The "growing plant” may be e.g. strawberry, especially garden strawberry, or some another berry, lettuces, cab- bages, beets, etc. The film may be used as mulching film, etc. The "food product” may be e.g. finished or semi-finished meat product, such as beef, pork, poultry, fish, or fruit, > vegetable, cheese, sausage, etc.
    N DETAILED DESCRIPTION S In an embodiment, the polymeric substrate comprises poly- 2 olefin polymer, and the active layer further comprises one E 30 or more further polymer(s) for controlling release rate of > the coniferous resin acid(s), the further polymer(s) se- 3 lected from: D - polyamide, such as PA6, N - inherently dissipative polymer (IDP), such as polyeth- ylene-polyether-copolymer, - polyethylene-block-amide (PERA),
    - polyether-polyamide block copolymer. In an embodiment, the amount of the further polymer is 1% - 90%, preferably 5% — 40%, more preferably 10% - 30%. 5 In an embodiment, the active layer comprises a booster ma- terial for boosting the effect of the coniferous resin ac- id(s), the booster material comprising at least one of chemicals listed herein: - sorbates, - benzoates. In an embodiment, the booster material comprises potassium sorbate.
    In an embodiment, the booster material comprises sodium benzoate. In an embodiment, the amount of the booster material is
    0.13 — 20%, more preferably 0.2% - 5%, even more prefera- bly 0.5% - 3%. In an embodiment, the coniferous resins acid(s) are in rosin, such as in pine resin.
    > In an embodiment, the coniferous resins acid(s) comprises S tall oil rosin, and/or gum rosin, and/or wood rosin.
    O <Q In an embodiment, the coniferous resins acid(s) comprises - 30 an abietic acid type resin acid(s), such as abietic acid, E dehydro abietic acid. 3 O In an embodiment, the coniferous resins acid(s) comprises 2 pimaric acid type resin acid(s), such as pimaric acid, N 35 isopimaric acid resin acids.
    In an embodiment, the amount of the coniferous resins ac- id(s) is 1% — 40%, more preferably 3% - 20%, most prefera- bly 5% — 15%.
    In an embodiment, the polymer film is a multilayer film, comprising one or more additional layer (s) arranged on one side of the active layer.
    According to an aspect, the polymer film is an agricultur- al film, comprising the polymer film described in this de- scription. In an embodiment, the agricultural film is a silage protecting sheath. In another embodiment, the agri- cultural film is a horticulture film.
    In an embodiment, the polymer film is used for covering silage.
    In an embodiment, the polymer film is arranged such that the active layer is against the silage to be covered.
    In an embodiment, the polymer film is arranged to encapsu- late the silage to be covered by the polymer film.
    In an embodiment, the polymer film is used for covering growing plant (s).
    o D In an embodiment, the polymer film is arranged such that
    N > the active layer is arranged against the growing plant to Oo ' be covered.
    O Mu 30 E According to an aspect, the polymer film is a food packag- o ing film, comprising the polymer film described in this
    O O description.O
    O N 35 In an embodiment, the polymer film is used covering food product.
    In an embodiment, the polymer film is arranged such that the active layer is arranged against the food product to be covered.
    In an embodiment, the polymer film is arranged to encapsu- late the food product to be covered. The invention is not limited solely to the embodiments de- scribed above, but instead many variations are possible within the scope of the inventive concept defined by the claims below. Within the scope of the inventive concept the attributes of different embodiments and applications can be used in conjunction with or replace the attributes of another embodiment or application. The description is only intended to illustrate the idea of the invention. The invention may vary in detail within the scope of the inventive idea defined in the following claims. oON
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    权利要求:
    Claims (25)
    [1] 1. A polymer film, comprising - at least one active layer made of a composition contain- ing: - a polymeric substrate comprising at least one of the polyolefin polymer and polyamide 6,and - a coniferous resin acid(s) dispersed in the pol- ymeric substrate, - wherein the active layer constitutes at least one skin of the polymer film.
    [2] 2. The polymer film as claimed in claim 1, wherein - the polymeric substrate comprises polyolefin polymer, and the active layer further comprises one or more further polymer (s) for controlling release rate of the coniferous resin acid(s), the further polymer (s) selected from: - polyamide, such as PAG, - inherently dissipative polymer (IDP), such as polyeth- ylene-polyether-copolymer, - polyethylene-block-amide (PEBA), - polyether-polyamide block copolymer.
    [3] 3. The polymer film as claimed in claim 2, wherein the o amount of the further polymer is 1% - 90%, preferably 5% - > 40%, more preferably 10% - 30%.
    [4] S n 4. The polymer film of any one of the preceding claims, > 30 wherein the active layer comprises a booster material for i boosting the effect of the coniferous resin acid(s), the 2 booster material comprising at least one of chemicals LO listed herein: > - sorbates, - benzoates.
    [5] 5. The polymer film as claimed in claim 4, wherein the booster material comprises potassium sorbate.
    [6] 6. The polymer film as claimed in claim 4 or 5, wherein the booster material comprises sodium benzoate.
    [7] 7. The polymer film as claimed in any of claims 4 - €, wherein the amount of the booster material is 0.1% - 20%, more preferably 0.2% - 5%, even more preferably 0.5% - 3%.
    [8] 8. The polymer film as claimed in any of the preceding claims, wherein the coniferous resins acid(s) are in ros- in, such as in pine resin.
    [9] 9. The polymer film as claimed in any of the preceding claims, wherein the coniferous resins acid(s) comprises tall oil rosin, and/or gum rosin, and/or wood rosin,
    [10] 10. The polymer film as claimed in any of the preceding claims, wherein the coniferous resins acid(s) comprises an abietic acid type resin acid(s), such as abietic acid, de- hydro abietic acid.
    [11] 11. The polymer film as claimed in any of the preceding claims, wherein the coniferous resins acid(s) comprises > pimaric acid type resin acid(s), such as pimaric acid, S isopimaric acid resin acids.
    O <Q
    [12] 12. The polymer film as claimed in any of the preceding - 30 claims, wherein the amount of the coniferous resins ac- E id(s) is 1% — 40%, more preferably 3% - 20%, most prefera- 2 bly 5% - 15%.
    LO 2
    [13] 13. The polymer film as claimed in any of the preceding N 35 claims, wherein the polymer film is a multilayer film,
    comprising one or more additional layer (s) arranged on one side of the active layer.
    [14] 14. An agricultural film, comprising the polymer film as claimed in any one of the preceding claims.
    [15] 15. The agricultural film of claim 14, being a silage pro- tecting sheath.
    [16] 16. The agricultural film of claim 14, being a horticul- ture film.
    [17] 17. Use of polymer film as claimed in any one of claims 1 —- 13 for covering silage.
    [18] 18. Use of polymer film as claimed in claim 17, comprising arranging the active layer against the silage to be cov- ered.
    [19] 19. Use of polymer film as claimed in claim 17 or 18, com- prising encapsulating the silage to be covered by the pol- ymer film.
    [20] 20. Use of polymer film as claimed in any one of claims 1 -— 13 for covering growing plant(s).
    [21] o S 21. Use of polymer film as claimed in claim 20, comprising > arranging the active layer against the growing plant to be P covered.
    [22] O — 30 E 22. A food packaging film, comprising the polymer film as o claimed in any of claims 1 - 13.
    [23] D 3 S 23. Use of polymer film as claimed in any one of claims 1 N 35 -— 13 for covering food product.
    [24] 24. Use of polymer film as claimed in claim 23, comprising arranging the active layer against the food product to be covered.
    [25] 25. Use of polymer film as claimed in claim 23 or 24, com- prising encapsulating the food product to be covered by the polymer film.
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    同族专利:
    公开号 | 公开日
    BR112021025160A2|2022-01-25|
    WO2020249868A1|2020-12-17|
    FI128542B|2020-07-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FI90435C|1991-11-18|1994-02-10|O Pinomaa Ky|Method for improving the strength of bitumen, asphalt or similar material and a mixture obtained by the method|
    CN104479199A|2014-11-27|2015-04-01|苏州市贝克生物科技有限公司|Medical film material and preparation method thereof|
    EP3638038A1|2017-06-14|2020-04-22|Premix Oy|Antimicrobial polymer composition|
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