Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A water-based emulsion and coating technology, which is applied in coatings, latex paints, fireproof coatings, etc., can solve the problems of low impact strength, poor thermal stability and anti-yellowing ability, and the barrier performance of harmful substances that will dissolve, and achieve High impact strength, strong anti-yellowing ability, not easy to crack
Active Publication Date: 2020-07-28
ZHEJIANG QUZHOU JUSU CHEM IND CO LTD +1
View PDF4 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0002] PVC, PET, nylon, PCT and other hard sheets have uniform thickness, good sealing performance, fast heat sealing, easy molding, low price, anti-ultraviolet and radiation resistance, and have been widely used in tablets, capsules, injections, oral liquids and other medicines Internal and external packaging, but PVC hard film also has fatal flaws: it will dissolve harmful substances and poor barrier performance
The disadvantage is that the impact strength is low
The disadvantage is poor thermal stability and anti-yellowing ability
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0025] A kind of coating water-based PVDC emulsion, its raw material formula is as follows:
[0026]
[0027]
[0028] The preparation steps are as follows:
[0029] (1) Configuration of initiator aqueous solution: Weigh 0.005kg of ammonium persulfate (APS), make ammonium persulfate aqueous solution I with 2kg of deionized water, and set aside; weigh 0.02kg of sodium metabisulfite (SMBS), and use 3kg of deionized water Water is made into sodium metabisulfite aqueous solution, and it is set aside; 0.017kg of ammonium persulfate (APS) is weighed, and 3kg of deionized water is made into ammonium persulfate aqueous solution II, and set aside;
[0030] (2) Configure the premix: 49.51kg of vinylidene chloride monomer, 2.91kg of methyl acrylate, 2.91kg of butyl acrylate, 2.33kg of itaconic acid, 0.58kg of acrylic acid, 0.41kg of octadecyl Potassium dodecyl carboxylate of sodium sulfate, 0.41kg, sodium pentadecylbenzenesulfonate of 0.82kg, sodium bicarbonate of 0.02kg, ammonium...
Embodiment 2
[0035] A kind of coating water-based PVDC emulsion, its raw material formula is as follows:
[0036]
[0037]
[0038] The preparation method is the same as in Example 1, and the performance parameters of the emulsion are shown in Table 1.
Embodiment 3
[0040] A kind of coating water-based PVDC emulsion, its raw material formula is as follows:
[0041]
[0042]
[0043] The preparation method is the same as in Example 1, and the performance parameters of the emulsion are shown in Table 1.
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
Property
Measurement
Unit
particle diameter
aaaaa
aaaaa
viscosity
aaaaa
aaaaa
surface tension
aaaaa
aaaaa
Login to view more
Abstract
The invention discloses a PVDC waterborne emulsion used for coating. The PVDC waterborne emulsion is prepared from the following components by weight: 1 to 5 parts of a seed monomer, 45 to 55 parts ofa VDC monomer, 4 to 10 parts of a comonomer, 0.01 to 0.05 part of an initiator, 0.1 to 0.5 part of a seed emulsifier, 0.5 to 3 parts of an emulsifier, 0.01 to 0.05 part of an auxiliary agent, 0.001 to 0.01 part of a modifying auxiliary agent and 35 to 40 parts of deionized water. The PVDC waterborne emulsion provided by the invention is coated onto hard sheets of PVC, PET, nylon, PCT and the liketo form composite hard sheets, and has the advantages of high impact strength, small possibility of crack generation, good barrier properties, no dissolution of harmful substances, capability of directly contacting with chemicals, high thermal stability, strong yellowing resistance, etc.
Description
technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a PVDC aqueous emulsion for coating. Background technique [0002] PVC, PET, nylon, PCT and other hard sheets have uniform thickness, good sealing performance, fast heat sealing, easy molding, low price, anti-ultraviolet and radiation resistance, and have been widely used in tablets, capsules, injections, oral liquids and other medicines Internal and external packaging, but PVC hard film also has fatal flaws: it will dissolve harmful substances and have poor barrier properties. As a plastic packaging material, PVDC has the advantages of portability, no leaching of harmful substances, direct contact with food and drugs, high barrier property, low price, and convenient promotion. It has been widely used in the field of drug and food packaging. At present, PVDC emulsion is widely used in the field of food and pharmaceutical packaging. Coating PVDC emulsion on PVC, PET, ...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more