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Polymers and methods to mitigate the loss of silicone deposition from keratinous substrates

A technology of polysiloxanes, compositions, applied in the field of stain removal conditioning compositions in personal care cleansing applications, which can solve the problem of diminished conditioning benefits

Active Publication Date: 2015-10-28
LUBRIZOL ADVANCED MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, less than optimal amount of silicone conditioning agent is released to the hair and the conditioning benefit is reduced

Method used

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  • Polymers and methods to mitigate the loss of silicone deposition from keratinous substrates
  • Polymers and methods to mitigate the loss of silicone deposition from keratinous substrates
  • Polymers and methods to mitigate the loss of silicone deposition from keratinous substrates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-10

[0335] The nonionic amphiphilic polymer component of the present invention is prepared using free radical initiated dispersion polymerization. The polymerization reactor consisted of a water-cooled resin kettle equipped with a reflux condenser, a nitrogen purge line, a mechanical stirrer, and a thermocouple connected to a temperature control assembly. The mixture of monomers, crosslinkers and processing aids described in Table 1 was added to the resin kettle, followed by the polymerization solvent. The amounts of these components in % by weight are shown in the table for each polymer preparation. While heating the reaction medium to the target polymerization temperature, the reactor is purged with nitrogen for at least half an hour. When the reaction temperature reaches the set polymerization temperature, usually about 67°C, inject the initiator solution 2,2'-azobis(2-methylbutyronitrile) (0.12% by weight based on the dry weight of the polymer) into the reaction pot to start...

Embodiment 11-24

[0342] A 2-in-1 hair conditioner shampoo containing the nonionic amphiphilic polymer prepared according to Examples 1-10 was formulated using the ingredients described in Table 2.

[0343] Table 2

[0344]

[0345] Shampoo compositions are prepared according to the following procedure:

[0346] Part A:

[0347] 1) Disperse the polymer evenly in D.I. water;

[0348] 2) Add anionic and amphoteric surfactants and mix for 15 minutes.

[0349] Part B:

[0350] 3) A 2 wt. % (wt. / wt.) dispersion of cationic guar gum in D.I. water was prepared and mixed with the Part A component.

[0351] Part C:

[0352] 4) Add part C component to part AB component mixture and mix until uniform;

[0353] 4) Adjust the ABC component mixture to a pH of about 6 with NaOH.

[0354] The same 2-in-1 comparative shampoo compositions were prepared similarly except one was formulated with a commercially available thickener polymer (INCI name: Acrylate Copolymer) and the control shampoo formula...

Embodiment 25

[0363] Poly(1-vinylpyrrolidone-co-vinyl acetate) linear copolymer (62.7 wt% NVP) obtained from Sigma-Aldrich (CAS No. residues, 37.3 wt% VA residues) formulated into a 2-in-1 shampoo composition except that 1.5 wt% linear copolymer (100% actives), 15 wt% Sulfochem TM ES-2 CWK Anionic Surfactant and 2 wt% Chembetaine TM C Amphoteric Surfactant (all weights are based on the total weight of the formulated composition). The amount of silicon (silicon atoms) deposited on wool cloth swatches treated with the 2-in-1 shampoo composition was measured by X-ray fluorescence (XRF) spectroscopy according to the experimental method described above. The yield stress (24 hours after formulation) of the shampoo composition was also measured as described in the above method.

[0364] The measured silicon peak intensity was 71.8 kcps and the yield stress of the shampoo formulation was 0 Pa.

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Abstract

A conditioning and cleansing composition comprising at least one detersive surfactant, a silicone conditioning agent and a nonionic, amphiphilic polymer that mitigates the loss silicone deposition on keratinous substrates is disclosed. The nonionic, amphiphilic polymer is prepared by polymerizing a monomer composition comprising: a) from about 55 to about 95 wt.% of at least one vinyl amide monomer (based on the weight of the total monomers present); b) from about 5 to about 45 wt.% of at least one vinyl ester of an aliphatic carboxylic acid containing an acyl moiety having 2 to 22 carbon atoms (based on the weight of the total monomers present); c) from about 0 to about 1 wt.% of at least one polyunsaturated crosslinking monomer containing at least two polymerizable ethylenically unsaturated moieties (based on the total dry weight of the polymer); d) from about 0 to about 10 wt.% of at least one C1-C22 alkyl (meth)acrylate (based on the weight of the total monomers present); e) from about 0 to about 10 wt.% of an alkoxylated associative monomer (based on the weight of the total monomers present); f) from about 0 to about 10 wt.% of an alkoxylated semi-hydrophobic monomer (based on the weight of the total monomers present); and g) from about 0 to about 5 wt.% of at least one vinyl ester of an aliphatic carboxylic acid containing an acyl moiety having 2 to 22 carbon atoms (based on the weight of the total monomers present) other than vinyl acetate.

Description

field of invention [0001] The present invention relates to stain release conditioning compositions for keratinous substrates. More particularly, the present invention relates to stain release conditioning compositions suitable for use in personal care cleansing applications. The conditioning cleansing composition comprises water, at least one detersive surfactant, silicone, and at least one surfactant-activated microcoagulation that mitigates loss of silicone deposited onto keratinous substrates from the cleansing composition glue polymer. Background of the invention [0002] It has historically been considered desirable to clean the hair and skin and then condition them after cleansing. In the past, these steps needed to be performed in two separate procedures. With the advent of 2-in-1 cleansers (conditioning shampoos), it becomes possible to condition and cleanse at the same time. Stain removal conditioning compositions such as 2-in-1 hair conditioning shampoos are we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/04A61K8/58A61K8/81A61Q5/12A61Q5/02
CPCA61Q5/12A61K8/044A61K8/585A61K8/8182A61Q5/02A61K8/8176A61K8/891
Inventor D·W·拉菲提B·D·菲古拉W-Y·杨K·沙里
Owner LUBRIZOL ADVANCED MATERIALS INC
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