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Thickened polymer

a polymer and polymer technology, applied in the field of new thickening polymer, to achieve the effect of good flow properties, high addition rate of monomers, and increase of molecular weigh

Inactive Publication Date: 2018-11-08
BEIERSDORF AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The polymer achieves clear gels with low tan δ values, extended storage stability, and suitable viscosity for various applications, including cosmetics and coatings, while maintaining safety by preventing the gel effect and ensuring stable polymerization.

Problems solved by technology

The prior art lacked thickening polymers which make it possible to produce clear gels coupled with simultaneously low tan δ values.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037]

Monomer phaseMethacrylic acid37.000 parts Ethyl acrylate51.800 parts Octadecyl acrylate5.000 partsEmulsogen R3076.000 partsTrimethylolpropane triacrylate0.300 partsWater phaseWater33.060 parts Sodium lauryl sulfate0.984 partsReaction vesselWater173.146 parts Sodium lauryl sulfate0.300 partsInitiator phase AWater1.911 partsAmmonium persulfate0.069 partsInitiator phase BWater2.909 partsAmmonium persulfate0.021 parts

[0038]The reaction vessel, which is equipped with stirrer, reflux condenser, nitrogen feed, dosing device and internal thermometer, is charged with 173.146 parts of water and 0.300 parts of sodium lauryl sulfate. The mixture is heated to 82° C. with stirring and under a nitrogen atmosphere.

[0039]The monomer mixture is prepared in a second stirred vessel which is equipped with stirrer and nitrogen feed. For this purpose, the monomer phase with 37.000 parts methacrylic acid, 51.800 parts ethyl acrylate, 5.000 parts octadecyl acrylate, 6.000 parts Emulsogen R307 and 0.30...

examples 2-52

[0041]The examples below (Table 1) are prepared analogously to Example 1. In most examples, sodium lauryl sulfate was used as emulsifier. In a departure from this, Examples 5 and 11 were prepared from a combination of sodium lauryl sulfate and ethoxylated isotridecyl alcohol (Genapol X1005, Clamant), and Example 10 was prepared with isotridecyl alcohol (Genapol X1005, Clamant).

Abbreviations

[0042]MAA Methacrylic acid[0043]EA Ethyl acrylate[0044]LA Lauryl acrylate[0045]ODA Octadecyl acrylate[0046]S20W Bisomer® S20W (Cognis)[0047]Methoxypolyethylene glycol methacrylate (EO 45 mol)[0048]M5010 Maxemul® 5010 (Croda)[0049]C12H23HCCH(C2H4O25CH3 [0050]R307 Emulsogen® R307 (Clariant)[0051]EO / PO 30 1,4-butanediol vinyl ether (EO / PO 30 mol)[0052]RAL307 Emulsogen® RAL307 (Clariant)[0053]Allylpolyalkylene glycol ether (EO 30 mol)[0054]R208 Emulsogen® R208 (Clariant)[0055]1,4-Butanediol vinyl ether (EO / PO 25 mol)[0056]A11 / 1800 Polyglycol A11 / 1800 (Clariant)[0057]Allylpolyalkylene glycol ether (EO ...

example 53

[0094]The preparation below is intended to illustrate the present invention without limiting it. Unless stated otherwise, all quantitative data, fractions and percentages are based on the weight and the total amount or on the total weight of the preparation.

[0095]The polymer according to the invention is diluted with some of the water phase and added to the surfactant phase with stirring. The other formulation constituents apart from NaOH and the suspended bodies are then added with stirring. After the pH has been adjusted, the suspended bodies are stirred into the finished gel base with as little shear as possible.

TABLE 3Preparation shower gelSodium laureth sulfate6.50Cocoamidopropylbetaine4.60Sodium cocoyl glutamate0.50Polymer2.25PEG-40 hydrogenated castor oil0.80PEG-7 glyceryl cocoate1.75Pigmentsq.s.NaOHq.s.Perfumeq.s.Waterad 100

TABLE 4Results for preparation shower gelExampletan δViscosity in mPaspH of shower gel 10.3035446.19 20.2926006.21 3*0.8926056.15 4*8.5819776.18 5*1.8920...

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Abstract

The invention relates to a thickened preparation comprising a polymer which can be obtained by radical emulsion polymerization of at least one acidic vinyl monomer or salt thereof, at least one non-ionic vinyl monomer, in particular preferably a hydrophobic non-ionic vinyl monomer, at least one monomer containing an unsaturated terminal group and a polyoxyalkyene portion, at least one crosslinking monomer, optionally a protective colloid, and is characterized in that the polymerization is controlled such that the gelling effect occurs at least at times, which is achieved by the monomer addition (dosing time) taking place for 40 minutes, particularly preferably for 30 minutes.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation of application Ser. No. 13 / 700,406, which is a National Stage of International Application PCT / EP2011 / 054247, filed Mar. 21, 2011; the entire disclosures of both applications are expressly incorporated by reference herein.BACKGROUND OF THE INVENTION1. Field of the Invention[0002]The invention relates to a new type of thickening polymer with special properties which is free from associative monomers and / or whose chain contains no such associative monomers.Definitions[0003]Unless stated otherwise, all quantitative data are percentages by mass based on the total mass of the preparation.[0004]Within the context of the present specification, associative monomers are monomers of the type U-S-L, where U contains an ethylenically unsaturated group such as methacrylate, acrylate, allyl or vinyl groups, S is a spacer from a polyoxyalkylene chain having 2 to 300 alkyleneoxy units such as polyethylene glycol,...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08F120/68C08F220/04A61Q19/00C08F2/22C08F128/02A61K8/81C08F220/18C08F216/14C08F220/06C08F222/10C09K23/00
CPCC08F220/06A61K8/8152C08F2220/1891C08F2216/145A61K2800/10C08F220/18C08F120/68A61K2800/48A61Q19/00C08F2/22C08F220/04C08F128/02C08F222/1006C08F216/145C08F220/1818C08F222/103C08F220/1802
Inventor ALEKSANDROVIC-BONDZIC, VESNAMERTENS, SASCHAFOERSTER, STEPHAN
Owner BEIERSDORF AG