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CN-122029232-A - Melt-formed container for retaining water-based contents, and method for producing the same

CN122029232ACN 122029232 ACN122029232 ACN 122029232ACN-122029232-A

Abstract

The present invention relates to a melt-formed cosmetic container for retaining water-based contents, said melt-formed cosmetic container for retaining water-based contents, which is used as a storage article for water-based contents, a method for producing such a melt-formed cosmetic container for retaining water-based contents, and a melt-formed cosmetic container for retaining water-based contents obtained from said method.

Inventors

  • V. H. Bicester
  • B. Hanberg
  • REINER CHRISTOF
  • BRACK HANS-PETER
  • H. WORTH

Assignees

  • 格卡有限公司

Dates

Publication Date
20260512
Application Date
20240918
Priority Date
20231027

Claims (16)

  1. 1. A melt-formed cosmetic container for retaining a water-based content, the container comprising: A polymer composition comprising recycled poly (ethylene terephthalate) (rPET) having particulate contaminants falling within the range of 1,500 to 63,000 particles PPTI per 10,000 images.
  2. 2. The melt-formed cosmetic container according to claim 1, for further retaining organic solvent-based content and/or oil-based content.
  3. 3. The melt-formed cosmetic container according to claim 1 or 2, wherein the polymer composition comprises recycled poly (ethylene terephthalate) (rPET) in an amount of 15 mass% or more, preferably 30 mass% or more, 50 mass% or more, 70 mass% or more, 85 mass% or more, or 100 mass% based on the total mass of the polymer composition.
  4. 4. A melt-formed cosmetic container according to claim 1 to 3, wherein the polymer composition further comprises at least one further class of polymers, such as polyesters comprising PET and/or copolyesters comprising PCTG, PCTA, PETG and/or PCT, Preferably wherein the polymer composition comprises at least one further kind of polymer in an amount of 85 mass% or less, preferably 70 mass% or less, 50 mass% or less, 30 mass% or less, 15 mass% or less, or 0 mass% based on the total mass of the polymer composition.
  5. 5. The melt-formed cosmetic container of any one of claims 1 to 4, wherein the polymer composition does not comprise a substantial amount of fluorinated and/or perfluorinated polymer.
  6. 6. The melt-formed cosmetic container according to any one of claims 1 to 5, wherein at a temperature of about 45 ℃ and a pressure of about 1atm, at W (WBC) at t 0 is defined as the weight W (WBC) of the water-based content in the cosmetic container at a first point in time t 0 , When W (WBC) at t 0+x is defined as the weight W (WBC) of the water-based content in the cosmetic container at a second point in time t 0+x after t 0 , The weight loss of the water-based content according to formula (1.1) is 5.00% or less, the formula (1.1) being Preferably wherein formula (1) is 3.15% or less, 3.10% or less, 3.05% or less, 2.50% or less, 2.00% or less, 1.80% or less, or 1.50% or less, and/or Preferably wherein t 0+x is four (4) weeks or more, preferably six (6) weeks or more.
  7. 7. The melt-formed cosmetic container according to any one of claims 1 to 6, wherein particulate contaminants of recycled poly (ethylene terephthalate) (rPET) fall in the range of 1,500 to 20,000 per 10,000 images of particles PPTI, preferably 3,000 to 15,000 per 10,000 images of particles PPTI, and more preferably 5,000 to 12,000 per 10,000 images of particles PPTI.
  8. 8. The melt-formed cosmetic container according to any one of claims 1 to 7, wherein the recycled poly (ethylene terephthalate) (rPET) comprises 50 to 95% of particles having a size of 3 μιη or less, preferably 60 to 90%, and more preferably 70 to 85%, and/or based on the total amount of particles in the recycled poly (ethylene terephthalate) (rPET) Wherein the recycled poly (ethylene terephthalate) (rPET) comprises 70 to 100% of particles having a size of 5 μm or less, preferably 80 to 99%, and more preferably 90 to 99%, based on the total amount of particles in the recycled poly (ethylene terephthalate) (rPET).
  9. 9. The melt-molded cosmetic container according to any one of claim 1 to 8, wherein the recycled poly (ethylene terephthalate) (rPET) further comprises an inorganic compound, preferably in an amount of 0.10 mass% or more based on the total mass of the recycled poly (ethylene terephthalate) (rPET), Preferably wherein the inorganic compound is a compound based on an element selected from Al, sb, cr, fe, cd, ti, ni, ca and/or Mg.
  10. 10. The melt-molded cosmetic container according to any one of claims 1 to 9, wherein the recycled poly (ethylene terephthalate) (rPET) further comprises an additive in an amount of 2.0 mass% or less based on the total mass of the recycled poly (ethylene terephthalate) (rPET), preferably in an amount of 0.1 to 1 mass%, 0.2 to 0.5 mass%, or 0.25 to 0.3 mass%, Preferably wherein the additive is selected from polyvinyl chloride (PVC), polystyrene (PS), ethylene vinyl alcohol (EVOH), acrylonitrile Butadiene Styrene (ABS), polylactic acid (PLA) and/or polypropylene (PP).
  11. 11. The melt-molded cosmetic container according to any one of claims 1 to 10, wherein the recycled poly (ethylene terephthalate) (rPET) further comprises a conjugated organic compound in an amount of 500ppm by mass or less based on the total mass of the recycled poly (ethylene terephthalate) (rPET), preferably in an amount of 2 to 250ppm by mass, or 3 to 100ppm by mass, Preferably wherein the conjugated organic compound is selected from the group consisting of quinone, benzophenone, benzoquinone, stilbene and/or biphenyl.
  12. 12. The melt-formed cosmetic container according to any one of claims 1 to 11, wherein the cosmetic container comprises a mascara container, a lip gloss container, an eyeliner container, a pipette container, a hair gel container, a hair cream container, a lipstick container, an eye essence container, a body cream container, a body lotion container, a body oil container, a facial cream container, or a facial cleanser container.
  13. 13. The melt-formed cosmetic container according to any one of claims 1 to 12, for use as a storage article for water-based contents.
  14. 14. The melt-molded cosmetic container according to any one of claims 1 to 13, wherein the cosmetic container contains a cosmetic substance.
  15. 15. A method of producing a melt-formed cosmetic container for retaining a water-based content includes the steps of. A. Providing recycled poly (ethylene terephthalate) (rPET) having particulate contaminants in the range of 1,500 to 63,000 particles PPTI per 10,000 images; b. Optionally mixing rPET with at least one further polymer of the class, thereby providing a rPET-based mixture, and C. Melt-molding rPET or a rPET-based mixture, thereby providing a cosmetic container according to any one of claims 1 to 14, Preferably wherein the rPET comprises PET dimer in a total amount of about 50 to about 130mg/kg, preferably about 75 to about 125mg/kg, more preferably about 100 to about 120mg/kg, and/or Preferably wherein the rPET comprises PET trimer in a total amount of about 1,000 to about 5,000mg/kg, preferably about 2,000 to about 4,500mg/kg, more preferably about 3,000 to about 4,000 mg/kg.
  16. 16. A melt-formed cosmetic container for retaining the water-based content obtained from the method of claim 15.

Description

Melt-formed container for retaining water-based contents, and method for producing the same The present invention relates to a melt-formed cosmetic container for retaining water-based contents, said melt-formed cosmetic container for retaining water-based contents, which is used as a storage article for water-based contents, a method for producing such a melt-formed cosmetic container for retaining water-based contents, and a melt-formed cosmetic container for retaining water-based contents obtained from said method. In an increasingly consumer society, consumers are faced with a large variety of goods, such as cosmetic products. Given the wide range of cosmetic products provided, it is not surprising that today's end users possess a plethora of different cosmetic, care and/or hygiene products that are used only once or occasionally. This applies in particular to cosmetic products purchased in large quantities according to the current season, trend or simply the current taste of the consumer. Thus, cosmetic products are often found to be placed in the home for a long time and are only now used, and then not used at all. If the consumer decides to use a forgotten cosmetic product, the product is for whatever reason not normally in an attractive state anymore, i.e. in the condition of a new purchased and first opened product. This also occurs when the consumer uses the favorite cosmetic product for a longer period of time and finds that the state of the product is deteriorating. In many cases, this quality deterioration has occurred before the expiration date of the cosmetic product. Thus, products that are sound and technically safe to use (e.g. free of bacteria and mold) would deteriorate anyway. The aggravating factor is mainly due to the fact that the cosmetic product tends to dry in the package after a certain period of time, even well before the expiration date is reached-independent of whether the package is opened multiple times, once or not at all. Nowadays, cosmetic containers are mainly made of polymers, in Particular Polypropylene (PP), polyethylene (PE) including LLDPE, LDPE and HDPE, acrylonitrile styrene (AS/SAN), glycol modified polyethylene terephthalate (PETG) or poly (ethylene terephthalate) (PET). As mentioned above, such polymer-based packages prematurely lose the liquid primary component of the cosmetic product. This is especially the case when the liquid main component is water. Moreover, the production of virgin polymers is associated with increased environmental pollution. Glass continues to be a popular packaging material for cosmetic products. However, it is associated with certain drawbacks, such as heavy and fragile. For at least these reasons, glass containers are not preferred to be carried in handbags that are typically required for cosmetic products. Fluorinated materials, such as partially fluorinated or perfluorinated materials, have been used as packaging (especially bottles and containers) because of their known water repellent properties. However, fluorine-containing materials are receiving increasing attention due to suspected health risks of some of these chemicals. Especially when fluorinated compounds are used as packaging material for the contents intended to be in contact with humans (or other animals), as they are known to be immersed in said contents. Against this background, there is a need for a cosmetic container that solves the aforementioned problems. In particular, there is a need for a cosmetic container that is lightweight and sturdy, in which retaining the water-based content is excellent. In particular, there is a need for cosmetic containers in which retaining water-based contents is excellent. Furthermore, there is a need for such a cosmetic container that is environmentally friendly. Furthermore, there is a need for such a cosmetic container that is non-hazardous. There is also a need for a cosmetic container that is safe to use, in association with a reduction in migration of unintended added substances (NIAS) into the container contents. This need is met by the corresponding independent patent claims. In particular, this need is met by a melt-formed cosmetic container for retaining a water-based content according to independent claim 1. Further, this need is met by the melt-formed cosmetic container according to independent claim 13 for use as a storage article for water-based contents. This need is further met by a method for producing a melt-formed cosmetic container for retaining a water-based content according to independent claim 14. Further, this need is met by a melt-formed cosmetic container for retaining a water-based content obtained by the method according to independent claim 15. The dependent claims describe preferred embodiments of the invention. According to one aspect of the present invention, there is provided a melt-formed cosmetic container for retaining a water-based content, wherein the container comprises a polymer composition