Fluorescent tracer for water-soluble films, related methods, and related articles

A tracer, water-insoluble technology, applied in the direction of flexible coverings, detergent compositions, chemical instruments and methods, etc., can solve the problems of impracticality, time-consuming, etc., and achieve the effect of low sensitivity

Inactive Publication Date: 2016-08-03
MONOSOL LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such compositions can be difficult to analyze using analytical tools such as HPLC (High Pressure Liquid Chromatography) and GPC (Gel Permeation Chromatography), so separation and analysis of their components must be achieved using more labor-intensive methods
Sophisticated separation methods such as soxhletextraction can be performed prior to quantitative analysis; however such methods are time consuming and impractical, especially for rapid mass testing on an industrial scale

Method used

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  • Fluorescent tracer for water-soluble films, related methods, and related articles
  • Fluorescent tracer for water-soluble films, related methods, and related articles
  • Fluorescent tracer for water-soluble films, related methods, and related articles

Examples

Experimental program
Comparison scheme
Effect test

example

[0180] Homogeneous Dissolution Test

[0181] A water-soluble polymer composition (e.g., a film or related article, such as a pouch or other container) comprising a fluorophore tracer that is intended to test the release of fluorophores and the uniformity of formation of fluorophores can be tested as follows The ability to dissolve a polymer composition distributed in a dissolution composition. A portion of the water-soluble polymer composition is sampled (eg, a 1 g, 2 g, 5 g, or 10 g sample; or may include an entire article, such as a container made of the water-soluble polymer composition) and diluted in water with enough water to dissolve the water-soluble polymer composition. polymer components and form dissolved compositions. Suitably, a 1%, 2%, 5% or 10% by weight solution of the polymer composition in deionized water is formed. A 2% by weight solution is suitable for PVOH based compositions as it allows timely dissolution of the PVOH polymer component. The dissolved...

example 1

[0183] Example 1: Fluorescent Tracer in PVOH Solution

[0184] Aqueous tracer compositions according to the invention were formed by dissolving a water-soluble fluorophore in a 2% by weight solution of a PVOH copolymer film in deionized water. The fluorophore is a water-soluble disodium disulfonate derivative of stilbene biphenyl, which is commonly used as an optical brightener in powdered detergents (BENETEXOB-M1; available from Mayzo Specialty Chemicals, GA). Fluorophores can be excited with UV light (eg, about 340 nm to about 370 nm) and have a characteristic peak visible fluorescence emission at about 440 nm. Fluorophores were dissolved in solution at levels of 1.8 ppm, 2.0 ppm and 2.2 ppm. Using a BLACK-COMET spectrometer (obtained from StellarNet, FL), the solution with the fluorophore and the control solution without the fluorophore were excited with a 365 nm UV LED and the luminescence was measured in the range of 400 nm to 450 nm. Such as image 3 As shown in , t...

example 2

[0186] Example 2: Fluorescent Tracers and Bitters

[0187] A tracer composition according to the invention is formed by combining a water-insoluble fluorophore with a water-soluble bittering agent in a homogeneous liquid mixture. A mixture of the water-soluble bittering agent denatonium benzoate (25% by weight) in propylene glycol (75% by weight) (BITREX; obtained from Bitrex, Edinburgh, UK) was mixed with the water-insoluble fluorophore 4-methyl-7-(di Ethylamino)coumarin (OPTIBLANCATR; obtained from 3V, Bergamo, Italy) combination with tetrakis(polyethylene glycol)-dodecanyl ether (HO-[C 2 h 4 O] 4 -C 12 h 25 ; "PEG-4-Lauryl Ether" or "Laureth-4") acts as an emulsifier to stabilize an emulsion in water. Fluorophores can be excited with UV light (eg, about 340 nm to about 370 nm) and have a characteristic peak visible fluorescence emission at about 440 nm. As formed, the fluorophore and bittering agent were present in the tracer composition in a predetermined ratio of ...

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Abstract

Disclosed herein are fluorescent tracer compositions and water-soluble polymer compositions containing fluorescent compounds for tracing one or more components in the polymer compositions. More particularly, the disclosure relates to fluorescent tracer compositions including a fluorophore and a bitterant aversive component to be incorporated into a water-soluble polymer composition such as a water-soluble film. An aversive compound such as a bitterant is desirably incorporated into the polymer composition as a deterrent to ingestion of the polymer composition (or an article made therefrom). Qualitative or quantitative detection of the fluorophore in the polymer composition can be correlated to a qualitative or quantitative detection of a corresponding traced material in the polymer composition, for example the bitterant aversive component. Related articles and methods for making and using the polymer compositions are also disclosed.

Description

technical field [0001] The present invention generally relates to fluorescent tracer compositions and water-soluble polymer compositions containing fluorescent compounds for tracing one or more components thereof. More specifically, the present invention relates to fluorescent tracer compositions intended for incorporation into water-soluble polymer compositions, such as water-soluble films, comprising a fluorophore and a bitter-taste aversive component. Background technique [0002] Water-soluble polymeric compositions (eg, films) include various components, such as water-soluble polymers (eg, polyvinyl alcohol (PVOH)), plasticizers, and various other additives. Such compositions are commonly used as packaging materials to simplify the dispensing, pouring, dissolving, and dosing of materials intended to be delivered. For example, packets made of water-soluble films are commonly used to package household care compositions, such as sachets containing laundry or dish cleaners...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/00C08J5/18B65D65/46
CPCB65D65/46C08J5/18C08K5/0041C08J2300/14C08J2329/04C09K11/025C09K11/06C08L29/04C09K2211/1007C09K2211/1088C11D3/0005C11D3/2096C11D3/3418C11D3/3753C11D3/42G01N21/6428G01N33/58G01N33/582G01N2021/6439
Inventor 大卫·M·李斯蒂芬·布洛克尼古拉斯·塞斯
Owner MONOSOL LLC
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