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Bottles made from metallocene polypropylene for delivery of fragrances

A metallocene polypropylene and bottle technology, which is applied in the field of bottles made of metallocene polypropylene for delivering fragrances, can solve problems such as fragility

Inactive Publication Date: 2008-09-17
SC JOHNSON & SON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these polymers become brittle in the freezing range

Method used

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  • Bottles made from metallocene polypropylene for delivery of fragrances
  • Bottles made from metallocene polypropylene for delivery of fragrances
  • Bottles made from metallocene polypropylene for delivery of fragrances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1 - Comparison of Chemical Resistance of Metallocene Polypropylene Homopolymer and Zeigler-Natta Polypropylene Random Copolymer to Fragrance Oil Ingredients as Shown by Swell Test.

[0049] Weighing of two types of polyenes (1) Total M3282MZ (clarified mPP resin) and (2) Total NO3112-2 (NA21 nucleated Ziegler-Natta polypropylene random copolymer, hereinafter referred to as ZN-RCPP) The samples were placed in vials containing samples of forty fragrance ingredients typically used to formulate a variety of fragrances. Both polypropylene resins were supplied by Total Petrochemicals USA, Inc. All samples were placed in an environmental chamber at 85°F (29.4°C) for two weeks, then removed, dried on paper towels and weighed. The weight gain was calculated and the results are shown in Table 2.

[0050] Table 2 - Percent weight gain of polypropylene samples after submersion @ 85°F for 2 weeks: mPP vs. ZNPP

[0051] M3282MZ

ZN-RCPP

sample

...

Embodiment 2

[0060] Example 2 - Comparison of Chemical Resistance of Metallocene Polypropylene Homopolymer and Zeigler-Natta Random Copolymer to Mandarin Fragrance Oil as Shown by Weight Loss Test.

[0061] Mandarin flavor, which contains about 30% limonene, is no longer marketed by Changing Paradigms in ZN-RCPP bottles due to bottle-related leaking and high flavor migration issues. Therefore, this fragrance was chosen because of its aggressive properties that can migrate through polypropylene and demonstrated that metallocene polypropylene resins were compared to Ziegler-Natta catalyzed random copolymer polypropylene resins (commercially used to make fragrance bottles) how different. Table 3 shows that when 25 grams of Mandarin spice is mixed with ZN-CRPP, mPP and 210 resin (copolymer of acrylonitrile methyl acrylate grafted on nitrile rubber) made of perfume bottle after 113 days of weight loss results. 210 is the material currently used for preserving aromatherapy oils and dispensing...

Embodiment 3

[0065] Example 3 - Comparison of Chemical Resistance of Metallocene Polypropylene and Zeigler-Natta Polypropylene Random Copolymer to Hawaiian Breeze Fragrance Oil as Shown by Weight Loss Test.

[0066] Total M3282MZ (clarified mPP) and Total M3132-2 (NA21 nucleated Ziegler-Natta polypropylene random copolymer supplied by Total Petrochemicals USA, Inc. were used by Monarch Plastics Limited, hereafter and labeled as " hPP") resin into thin-walled 1-ounce polypropylene bottles through an extrusion blow molding (EBM) process. To these bottles were added 40 grams of Hawaiian Breeze spice manufactured by Takasago International Corporation. All filled bottles were then induction sealed, capped tightly, weighed, and then exposed to temperatures of 23EC (73.4°F), 53°C (127.4°F) and 63EC (145.4°F). Weight loss measurements were performed over 91 days and the results are shown graphically in FIG. 2 . Both types of polypropylene bottles fully contained Hawaiian Breeze fragrance when ex...

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Abstract

Bottles made of metallocene polypropylene (mPP) for storage and dispensing reservoirs for fragrance compositions, in particular fragrance oils, are described. The mPP bottles can be used in warmer units for slow release dispensing of the fragrance therein. The metallocene polypropylene bottles can be produced by extrusion or injection blow molding, injection molding, injection stretch blow molding (single or two stage), or other suitable molding process. The mPP bottles may optionally have at least one barrier coating layer and / or adhering layer. The mPP bottles may optionally be fluorinated. The mPP bottles have good clarity and possess the required physical properties needed when the bottles are filled on a production line.

Description

technical field [0001] The present invention relates to bottles made of metallocene polypropylene (mPP) for use as storage and dispensing reservoirs for fragrance-containing compositions, especially fragrance oils. The bottle of the present invention is particularly suitable for use in dispensing devices for the sustained release dispensing of fragrances, especially electric or battery powered warming devices. Background technique [0002] Blow molded flexible containers, injection molded hollow bodies, films, coatings and sheets made of metallocene polypropylene are well known in the art. Fragrance containers made of polypropylene are also known. [0003] For example, known in the prior art is US Patent Application Publication No. 2003 / 0209566A1 to Winckels, which discloses packaging products for gel or cream cosmetics. The packaged product has a flexible container or can and a rigid shell surrounding the can. The flexible container may be polypropylene obtained by metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D1/02A61L9/12A01M1/20
CPCY10T428/31855Y10T428/1383Y10T428/1379B65D1/0207A61L9/12Y10T428/31746Y10T428/1386Y10T428/1397Y10T428/1393A01M1/2044Y10T428/139Y10T428/1352B65D1/02A01M1/20
Inventor J·S·特伦特F·J·兰德尔T·M·科瓦拉J·J·伦克尔
Owner SC JOHNSON & SON INC
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