Unlock instant, AI-driven research and patent intelligence for your innovation.

A preparation method of high-barrier and aging-resistant high-density polyethylene resin for cosmetic bottles

A high-density polyethylene and high-barrier technology, which is applied in the field of preparation of high-barrier and aging-resistant high-density polyethylene resin for cosmetic bottles, can solve the problem of low barrier and oxidation resistance of high-density polyethylene plastics, inorganic barrier materials and anti-oxidation properties. Oxygen additives are prone to agglomeration, poor processability of plastic melt, etc., to increase compatibility time, improve shear sensitivity, and ensure air tightness

Active Publication Date: 2020-12-18
HANGZHOU KANGHONG IND & TRADE
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the above-mentioned inorganic barrier materials and antioxidant additives can effectively improve the barrier properties and aging resistance of high-density polyethylene resins, they are usually added during the resin melting-molding process after the high-density polyethylene resin is polymerized. Yes, because the properties of inorganic barrier materials and antioxidant additives are quite different from those of high-density polyethylene resins, the compatibility is poor, and inorganic barrier materials and antioxidant additives are prone to occur due to polarity during mixing. reunited, unable to adequately disperse
However, after the plastic products are made, they are easy to dissolve, which leads to a significant decrease in the barrier properties and oxidation resistance of high-density polyethylene plastic products, and it is impossible to maintain airtightness and aging resistance for a long time.
Moreover, after the antioxidant additives are dissolved, they will be mixed with the contained cosmetics, which also has a certain impact on the safety of cosmetics.
[0004] On the other hand, during melt extrusion processing, due to the addition of inorganic barrier materials and antioxidant additives, it will also have a certain negative impact on the rheological properties of the melt, making the processability of the plastic melt worse

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A preparation method of high-barrier and aging-resistant high-density polyethylene resin for cosmetic bottles
  • A preparation method of high-barrier and aging-resistant high-density polyethylene resin for cosmetic bottles
  • A preparation method of high-barrier and aging-resistant high-density polyethylene resin for cosmetic bottles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] raw material:

[0046] The purity of ethylene gas is ≥99%, the CO content is less than 43.0mg / kg, and the CO 2 The content is less than 44.0mg / kg.

[0047] The purity of 1-butene gas is ≥97%, the water content is less than 425mg / kg, and the total sulfur content is less than 410mg / kg.

[0048] The purity of hydrogen is ≥95%, the CO content is less than 45.0mg / kg, CO 2 Content ≤10.0mg / kg.

[0049] The preparation of high-barrier and aging-resistant high-density polyethylene resin for cosmetic bottles comprises the following steps:

[0050] 1) Pre-preparation of modified mica sheet powder: epoxypropyl dodecyl diethyl ammonium chloride is mixed with concentration as aqueous solution A of 35wt%, and glucosamine is mixed with concentration as aqueous solution B of 15wt%, and The aqueous solution A was placed in a water bath at 45°C, and the aqueous solution B was added dropwise to the aqueous solution A at a rate of 8mL / min under stirring conditions to react. The mass ra...

Embodiment 2

[0056] raw material:

[0057] The purity of ethylene gas is ≥99%, the CO content is less than 43.0mg / kg, and the CO 2 The content is less than 44.0mg / kg.

[0058] The purity of 1-butene gas is ≥97%, the water content is less than 425mg / kg, and the total sulfur content is less than 410mg / kg.

[0059] The purity of hydrogen is ≥95%, the CO content is less than 45.0mg / kg, CO 2 Content ≤10.0mg / kg.

[0060] The preparation of high-barrier and aging-resistant high-density polyethylene resin for cosmetic bottles comprises the following steps:

[0061] 1) Pre-preparation of modified mica flake powder: epoxypropyl dodecyl diethylammonium chloride is mixed with concentration as aqueous solution A of 34wt%, and glucosamine is mixed with concentration as aqueous solution B of 12wt%. Aqueous solution A was placed in a water bath at 50°C, and aqueous solution B was added dropwise to aqueous solution A at a rate of 6 mL / min under stirring conditions to react. The mass ratio is 1:1.5. Af...

Embodiment 3

[0067] raw material:

[0068] The purity of ethylene gas is ≥99%, the CO content is less than 43.0mg / kg, and the CO 2 The content is less than 44.0mg / kg.

[0069] The purity of 1-butene gas is ≥97%, the water content is less than 425mg / kg, and the total sulfur content is less than 410mg / kg.

[0070] The purity of hydrogen is ≥95%, the CO content is less than 45.0mg / kg, CO 2 Content ≤10.0mg / kg.

[0071] The preparation of high-barrier and aging-resistant high-density polyethylene resin for cosmetic bottles comprises the following steps:

[0072] 1) Pre-preparation of modified mica flake powder: epoxypropyl dodecyl diethylammonium chloride is mixed with a concentration of 30wt% aqueous solution A, glucosamine is mixed with a concentration of 10wt% aqueous solution B, and The aqueous solution A was placed in a water bath at 40°C, and the aqueous solution B was added dropwise to the aqueous solution A at a rate of 5mL / min under stirring conditions to react. The mass ratio is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of polyethylene preparation and discloses a preparation method of special high-barrier and anti-aging high-density polyethylene resin for a cosmetic bottle. The preparation method comprises the following steps: 1) pre-preparation of modified sheet mica powder; 2) prepolymerization; 3) repolymerization; 4) separation and drying; 5) mixing and granulating. According to the special high-barrier and anti-aging high-density polyethylene resin for a cosmetic bottle disclosed by the invention, the barrier anti-aging modified sheet mica is added in the polyethylene polymerization stage; the modified sheet mica is uniformly dispersed in plastic and does not agglomerate easily; therefore, long-time barrier and aging resistance can be realized while the processability of the plastic is not influenced much.

Description

technical field [0001] The invention relates to the field of polyethylene preparation, in particular to a preparation method of a special high-barrier and anti-aging high-density polyethylene resin for cosmetic bottles. Background technique [0002] In recent years, the sales of cosmetics in China have been increasing at a very high rate. The high-density polyethylene (HDPE) bottle used as cosmetic packaging has the characteristics of good hand feeling, moderate hardness, smooth appearance and good printing effect. It has replaced the traditional polyester bottle. And other packaging materials, become the preferred packaging material for cosmetics. Since there is no special resin for cosmetic bottles in China, the existing high-density polyethylene resins for small hollow containers cannot meet the production needs of products alone. Although high-density polyethylene has a series of advantages, its disadvantages are also very obvious. Because the cosmetics are required to ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F210/16C08F210/08C08F2/44C08K9/04C08K7/00C08K3/34
CPCC08F210/16C08K3/34C08K7/00C08K9/04C08F210/08C08F2/44
Inventor 陈刚
Owner HANGZHOU KANGHONG IND & TRADE