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Wax blend polymer encapsulates

A technology of polymers and copolymers, applied in the preparation of detergent mixture compositions, detergent compositions, organic detergent compositions, etc., can solve problems such as more expensive and bad consumer feedback

Inactive Publication Date: 2016-03-30
REVOLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such packaging is significantly more expensive than standard single-compartment units, which, along with poor consumer feedback, has led to the conclusion that fully formulated single-compartment products must be provided to satisfy the market

Method used

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  • Wax blend polymer encapsulates
  • Wax blend polymer encapsulates
  • Wax blend polymer encapsulates

Examples

Experimental program
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Effect test

preparation example Construction

[0306] Copolymer Preparation

[0307] As noted above, the wax or waxy substance (A) and the amphiphilic polymer (B) can be blended together to form a homogeneous mixture (i.e., a single phase blend) or they can be blended together to form two phases or A mixture of more phases. The phases present may be liquid within solid or solid within liquid or solid within solid. Such blended materials may be produced by melting two or more materials together to form a homogeneous blend or mixture of two or more phases as described above.

[0308] Alternatively, two or more materials may be dissolved together to form a solution with any suitable solvent and then coated on the core, for example by spraying or other suitable coating methods. After drying this spray solution, the blended mixture can then remain as a single phase dry coating or can undergo phase separation to produce a dry coating that is multi-phase (two or more phases) as described above.

[0309] Alternatively, a blende...

Embodiment

[0354] Synthesis example of amphiphilic graft copolymer

[0355] Synthesis Example 1: Reaction of Lithene N4-5000-5MA grade polybutadiene-graft-maleic anhydride with Jeffamine M2070 in a reaction flask (preparation of AGC1)

[0356] PBD-g-MA (200 g, polybutadiene-graft-maleic anhydride, Lithene N4-5000-5MA grade from Synthomer) with an average molecular weight of approximately 5750 Daltons was weighed, and This was added to a 0.5 L capacity reaction flask equipped with an overhead stirrer. Nitrogen was passed through the vessel, which was then heated to 150°C using an oil bath. Stirring of the molten mixture was then started and Jeffamine M2070 (polyether monoamine) with an average molecular weight of 2000 Daltons (144 g, purchased from Huntsman) was added over 45 minutes through the dropping funnel. The reaction mixture was maintained at 150°C with stirring for a total of about 6 hours. Subsequently, the reaction mixture was allowed to cool before being dispensed into glas...

Embodiment (1

[0363] Preparation of coated sodium percarbonate particles

[0364] Material

[0365] Samples of sodium percarbonate particles were obtained from two suppliers: Evonik industrial grade Q35 and Solvay chemical grades - Oxyper S131 and OxyperSHC.

[0366] Sample SPC1

[0367] Granules of sodium percarbonate (grade S131 ) were obtained from Solvay. The particles were sieved to separate a fraction between 500-1000 microns. The particles were coated on a Mini-Glatt fluid bed dryer using the bottom spray (Wurst) method. The concentration of the feed is typically 5% solids. Typical temperatures for application are 23-24°C. The gas flow was varied between 0.35 bar and 0.6 bar, and the atomization pressure was maintained at 0.03 bar. The feed consisted of a 1:1 mixture of Vybar260 and Unithox420 (exBaker Petrolite) dissolved in chloroform to a total concentration of 5%, fed by a peristaltic pump; flow rate between 5 and 7 g / change between min. A typical scale for this process ...

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Abstract

The present invention relates to composite comprising: (i) one or more core units comprising at least one benefit agent; and (ii) a coating on said one or more core units, wherein said coating comprises a blend comprising: (A) at least one wax or wax-like substance; and (B) at least one amphiphilic polymer. Further aspects of the invention relate to a process for preparing such composites, and their use in consumer products.

Description

technical field [0001] The present invention relates to the encapsulation of benefit agents, where the benefit agents are reactive, pro-reactive or catalytic entities that require protection from other formulation ingredients but can be released in response to specific triggers. The invention also relates to methods for preparing such packages and their use in products for a wide range of applications. Background technique [0002] It will be appreciated that many formulations include one or more active ingredients that are effected to deliver the desired effect or benefit. These products may collectively be referred to as active ingredients or benefit agents. However, these benefit agents often suffer from the limitation that they are not compatible with other formulation components or environmental factors such as water, air, light, or even react adversely with other benefit agents. Traditionally, these incompatibilities have been addressed by, if possible, manufacturing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D17/00C11D3/39C11D3/37C11D3/386C11D3/18
CPCC11D3/18C11D3/3749C11D3/3753C11D3/3788C11D3/38672C11D3/3935C11D17/0039C11D2111/12C11D3/3942
Inventor 特伦斯·科斯格罗夫戴维·约翰·邓卡夫保罗·休·芬德利梅拉妮·简·休斯戴维·阿兰·皮尔斯玛格达莱娜·阿尼兹卡·瓦鲁内克
Owner REVOLYMER
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