Alternating or random copolymer containing polyquaternium lateral group and preparation method thereof

A technology of random copolymers and quaternary ammonium salts, which is applied in skin care preparations, pharmaceutical formulations, cosmetic preparations, etc. It can solve the problems of affecting the appearance of hair, weak conditioning function, and difficult cleaning, etc., and achieves excellent compounding performance, Strong hairdressing ability and easy combing effect

Active Publication Date: 2011-08-17
GUANGZHOU TINCI MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But at present, the accumulation of general polymerized cations on the hair is serious, and it is not easy to clean. Long-term use will make the hair heavy and hard, and affect the appearance of the hair
Patent CN200610122572.2 describes a synthesis method of quaternized hydroxyethyl cellulose ether, but the product has a low degree of cationic substitution, so the product has a small positive charge density and has a weak conditioning function in shampoos and hair care products. The volume of the hair after use is not enough
Patent US5338541 describes a polyquaternium salt of acrylic acid / dimethyl diallyl ammonium chloride / acrylamide terpolymer, which has a high degree of cationic substitution and a large positive charge density. It is used in shampoo and hair care products It has a good conditioning function, but the product is easy to accumulate on the hair, it is not easy to rinse, and the hair will become hard after long-term use, which will affect the beauty of the hair

Method used

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  • Alternating or random copolymer containing polyquaternium lateral group and preparation method thereof
  • Alternating or random copolymer containing polyquaternium lateral group and preparation method thereof
  • Alternating or random copolymer containing polyquaternium lateral group and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A) Add 98.5g of 1-dodecene and 70.1g of maleic anhydride in a 1000ml four-neck glass reaction flask equipped with stirring, thermometer, nitrogen tube, reflux condenser and heating device, etc., start stirring, and ventilate nitrogen, after 30min The heating system was turned on, and the temperature of the reaction liquid was steadily raised from room temperature to 155° C. within 1.0 to 1.5 hours, and the reaction was performed at a constant temperature for 14 hours. After the reaction, turn on the vacuum pump, evacuate the reaction flask, remove unreacted materials, and obtain 1-octene / maleic anhydride copolymer (copolymer 1). After the reaction, the material can be cooled and discharged or directly proceed to the next step of reaction .

[0073] B) Add 199.0g tetraethylene glycol dimethyl ether to the copolymer 1 generated by A reaction, stir well, add 73.0g N,N-dimethyl-1,3-propanediamine, stir well, under nitrogen protection Lower the temperature to 160°C and reac...

Embodiment 2～6

[0077] Repeat embodiment 1, just adjust each reaction substance add-on of embodiment 1, as shown in table 1 below (unit, g)

[0078] Table 1

[0079]

Embodiment 7

[0081] Example 1 was repeated, except that the 1-dodecene used in the A reaction was replaced by 1-eicosene, the amount added was 164.1 g, the amount of maleic anhydride was adjusted to 57.8 g, and the reaction temperature was adjusted to 165°C. The N,N-dimethyl 1.3-propylenediamine used in the B reaction was replaced with N,N-dimethyl 1.2-ethylenediamine, and the addition amount was 46.4g. Adjust the amount of dimethyl sulfate used in reaction C to 62.0 g, adjust the amount of deionized water to 273.0 g, and adjust the reaction temperature to 140°C. After the completion of the reaction, the synthesized polyquaternium cationic compound was subjected to the same various detections as in Example 1.

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Abstract

The invention relates to an alternating or random copolymer containing a polyquaternium lateral group as well as a preparation method and an application method thereof. The preparation method comprises the following steps of: (1) generating an alternating or random copolymer containing a carboxylic acid anhydride group by copolymerization reaction of alpha-olefin and unsaturated diacid anhydride;(2) performing imidization reaction or esterification reaction on the obtained copolymer and organic tertiary amine containing a primary amine group or hydroxy to obtain a derivation containing a tertiary amine group; and (3) performing quaternization reaction on the polymer containing the tertiary amine group and an alkylation reagent to obtain the alternating or random copolymer containing the polyquaternium lateral group. The alternating or random copolymer containing the polyquaternium lateral group is a water-soluble polymer, has a good conditioning function on hair and skin, particularly endows the hair with good flexibility and conditioning property, is easily rinsed and is not accumulated; and the polymer can be used as a conditioning agent and a softening agent and can also be used as a retention and filtration aid and a reinforcing agent in the field of papermaking.

Description

technical field [0001] The present invention relates to a kind of water-soluble macromolecule compound and its preparation method, specifically a kind of alternating or random copolymer containing polyquaternary ammonium salt side group and its preparation method, the charge density of this polymer is high, and charge distribution Uniform, when used as a conditioning agent in skin care and hair care products, it shows excellent conditioning performance and anti-deposition performance that traditional polyquaternium salts do not have. It can be compounded with cationic and amphoteric surfactants, and can also be compounded with anionic surfactants. In addition, the polymer can also be used in the fields of papermaking, water treatment, printing and dyeing, and fabric treatment. Background technique [0002] Hair care and conditioning functions are the first element of product performance in shampoo and hair care products. People's hair is composed of keratin. Due to its poor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F222/06C08F2/02C08F210/14A61Q5/02C08F8/44A61Q5/12A61Q19/00A61K8/81C11D3/37
Inventor 王飞程珊宋美霞张若昕徐金富
Owner GUANGZHOU TINCI MATERIALS TECH
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