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Microcapsule-containing detergent or cleaning agent

A technology of microcapsules and builder, applied in the directions of detergent compounding agent, detergent material, detergent composition, etc., can solve problems such as inability to deliver sufficient amount, discoloration of consumer products, etc.

Inactive Publication Date: 2016-04-13
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, such capsules can discolor consumer products when subjected to external stimuli such as temperature, infrared radiation, visible light, and / or ultraviolet radiation, do not provide benefit at all consumer touch points, and may not deliver sufficient their cores

Method used

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  • Microcapsule-containing detergent or cleaning agent
  • Microcapsule-containing detergent or cleaning agent
  • Microcapsule-containing detergent or cleaning agent

Examples

Experimental program
Comparison scheme
Effect test

example I1

[0403] Example I.1: Preparation of copolymers

[0404] a) AMPS Hydroxybutyl Acrylate

[0405] For the 1500 g formulation, 891 g deionized water was charged into the reactor along with 585 g AMPS (50% in water) and 7.5 g 4-hydroxybutyl acrylate (HBA) and placed under an inert gas atmosphere. The reaction mixture was heated to 75°C with stirring (400 rpm). When the reaction temperature was reached, 0.03 g of the water-soluble initiator sodium peroxodisulfate was dissolved in 15 g of water and injected into the reactor via a syringe.

[0406] A post-reaction of one hour was started after reaching the maximum temperature. The formulation was then cooled to room temperature and mixed with 1.5 g of preservative.

[0407]The aqueous solution is characterized by its viscosity, solids content and pH. The viscosity was 540 mPas (measured at 20 rpm Brookfield), the solids content was 21%, and the pH was 3.3. 3 g of copolymer was placed on a Petri dish and dried in a 160°C drying...

example I2

[0412] Example I.2: Resorcinol Capsules

[0413] In a 400 mL beaker, 5.5 g of resorcinol was dissolved in water under stirring (stirring rate: about 1,500 rpm), and then mixed with 2.0 g of sodium carbonate solution (20% by weight), at a pH of 7.9. The solution was heated to a temperature of about 52°C. Then 25.5 g of glutaraldehyde were added.

[0414] The mixture was further stirred for about 10 minutes (precondensation time) at a stirring rate of about 1,500 rpm and a temperature of about 52°C. Then about 20 g of water was added and after about 2 minutes 1 g of protective colloid (a) copolymer 1.1a, (b) copolymer 1.1b and (c) poly-AMPS (AMPS homopolymer), was added, And after about 2 more minutes had passed, 55 g of butyl phenylacetate (CAS No. 122-43-0; aromatic substance with a honey-like aroma) were added. Immediately thereafter, the stirring speed was increased to about 4000 rpm, and 20.0 g of sodium carbonate solution (20% by weight) were added in about the same t...

- example I3

[0420] - Example I.3: Resorcinol microcapsules comprising hydroxycitronellal;

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Abstract

The invention relates to consumer products, including detergents or cleaning agents which comprise capsules that are low in formaldehydes and / or free from formaldehyde, are storage stable and thus prevent a contamination of the detergent or cleaning agent with formaldehyde, comprising microcapsules, the capsule wall of which contains a resin which is obtained by reacting at least one aromatic alcohol or ether or derivative thereof and at least one aldehydic component which comprises at least two c-atoms per molecule, and optionally at least one (meth)acrylate polymer, and builders and / or surfactants. Said detergent or cleaning agents enable, during application, a targeted and durable release of liquid active substances, such as, in particular scents, to the treated objects.

Description

technical field [0001] The present invention relates to microcapsules, methods of making and using them, as well as consumer products comprising such microcapsules and methods of making and using them. Background technique [0002] Many consumer products such as cleaning and / or treatment compositions contain sensitive ingredients. Disadvantageously, such ingredients used in such agents are, during storage and / or before the desired application day, in many loss of their activity, or at least a drastic drop in their activity. Thereby, certain ingredients such as fragrances are encapsulated. [0003] Microcapsules containing little or no free formaldehyde are suitable for use in consumer products because the use of formaldehyde scavengers can be avoided or minimized. Accordingly, the use of microcapsules having a shell comprising the reaction product of a material containing an aromatic alcohol moiety with a material containing an aldehyde moiety has been proposed for laundr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/50A61Q5/00A61K8/11C11D17/00
CPCC11D17/0039A61K8/11A61K8/8158A61Q5/02A61Q13/00A61Q19/00C11D3/505
Inventor J·斯梅茨L·奥兰迪尼
Owner THE PROCTER & GAMBLE COMPANY
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