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

Plastic bottom coating agent with inorganic film, plastic with inorganic film and decorative film formed by in-mold molding or insert molding

A technology of inorganic thin film and primer, applied in the direction of coating, synthetic resin layered products, polyurea/polyurethane coating, etc., can solve the problems of whitening parts, damage to the aesthetics of plastic technical performance of inorganic thin film, interference fringes, etc. , to achieve the effect of good adhesion

Active Publication Date: 2011-07-06
ARAKAWA CHEM IND LTD
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in plastics with an inorganic thin film, there is a problem of whitening parts on the surface of the inorganic thin film at high temperature, regardless of its shape.
In addition, in the case of a plastic film with an inorganic thin film, when it is further molded at a high temperature, there is not only the problem of whitening on the surface of the inorganic thin film, but also interference fringes on the surface of the inorganic thin film at the processed portion, which can The problem of visually judging the degree of cracks
Due to these problems, the technical performance (gas barrier properties, electromagnetic wave shielding properties, etc.) and aesthetics of plastics with inorganic films will be impaired.
[0004] In addition, as a solution to the above-mentioned whitening phenomenon, for example, in Japanese Patent Publication No. 60-40396, a primer comprising a mixture of a polymer such as an acrylic copolymer, a polyisocyanate, and a cellulose-based polymer is proposed, but its Does not involve the above interference fringe problem

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
  • Plastic bottom coating agent with inorganic film, plastic with inorganic film and decorative film formed by in-mold molding or insert molding
  • Plastic bottom coating agent with inorganic film, plastic with inorganic film and decorative film formed by in-mold molding or insert molding
  • Plastic bottom coating agent with inorganic film, plastic with inorganic film and decorative film formed by in-mold molding or insert molding

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0048] Add 36 parts (about 0.36 moles) of methyl methacrylate and 111.6 parts (about 0.36 moles) of butyl methacrylate (about 0.78 mol) (about 82.1 mol% in the total of (a1) component and (a2) component) and 32.4 parts (about 0.25 mol) of 2-hydroxyethyl methacrylate (about 0.25 mol) (in (a1) component and (a2) component 17.9 mol% in the total) and 270 parts of methyl ethyl ketone, and the reaction system was set at 80°C. Next, 0.9 parts of azobisisobutyronitrile was added, and the mixture was kept at around 80° C. for 5 hours. Next, 1.8 parts of azobisisobutyronitrile was added, and the reaction system was further kept at around the same temperature for 3 hours. Thereafter, the solution of the target copolymer (A-1) (hereinafter referred to as (A-1) component) was obtained by cooling the reaction system to room temperature. Table 1 shows the raw material type, hydroxyl group concentration, carboxyl group concentration, glass transition temperature and weight average molecula...

manufacture example 2～25， comparative manufacture example 1～3

[0050] The kind and usage amount (mol %) of the monomers used were replaced as shown in Table 1, except that, it was carried out in the same manner as in Production Example 1, and copolymers (A-2) to (A-25 ) and comparative copolymers (□) and (□). Table 1 shows their hydroxyl concentration, carboxyl concentration, glass transition temperature, and weight average molecular weight. In addition, since the solution of copolymer (H) was cloudy white, the subsequent evaluation was not performed.

[0051] 【Table 1】

[0052]

[0053] 【Table 2】

[0054]

[0055] In Tables 1 and 2, the meanings of the symbols are as follows.

[0056] MMA: methyl methacrylate

[0057] BMA: n-butyl methacrylate

[0058] nBA: n-butyl acrylate

[0059] St: Styrene

[0060] 2HEMA: 2-Hydroxyethyl methacrylate

[0061] 2HEA: 2-Hydroxyethyl Acrylate

[0062] 4HBA: 4-Hydroxybutyl Acrylate

[0063] CHDMMA: 4-(hydroxymethyl)cyclohexylmethyl 2-hydroxypropionate

[0064] HEAA: N-(2-Hydroxyethyl)acryla...

manufacture example 26

[0074] In the same reaction vessel as that of Production Example 1, add the isocyanuric polymer of toluene diisocyanate (product name "Coronate2030", the concentration of isocyanate group is 3.8×10 -3 mol / g) 445.5 parts, 5.0 parts of 1,6-hexanediol, and 55.6 parts of methyl ethyl ketone were subjected to urethanization reaction at 60° C. for 3 hours. Thereafter, it was cooled to room temperature to obtain a modified toluene diisocyanate isocyanuric polymer (hereinafter referred to as "modified TDI-1". The isocyanate group concentration was 1.5×10 -3 mol / g).

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
glass transition temperatureaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a novel bottom coating agent tightly fitting with the metal film layer, especially the generation of whitening parts and obvious cracks is avoided on the metal surface in a high-temperature environment. The bottom coating agent comprises a copolymer (A) and a polyisocyanate compound (B) comprising at least three isocyanate groups. The copolymer (A) is obtained from the reaction of the hydrophobic monomer (a1) represented in the general formula (1) with the monomer (a2) containing a hydroxyl group represented in the general formula (2) and the concentration of the hydroxyl group is 0.001 to 0.005 mol / g. In CH2 = C(R1)-[-(C = O)-O-] m-X (1), R1 represents a hydrogen or a methyl, m represents 0 or 1, X represents an alkyl group without a hydroxyl group, a phenyl group without a hydroxyl group or a benzyl group without a hydroxyl group. In CH2 = C(R2)-[-(C = O)-Y1-] n-Y2 (2), R2 represents a hydrogen or a methyl, Y 1 represents an oxygen or a secondary amino group (-NH-), n represents 0 or 1, Y2 represents an alkyl group with a hydroxyl group, a phenyl group with a hydroxyl group or a benzyl group with a hydroxyl group.

Description

technical field [0001] The present invention mainly relates to plastic substrates, and particularly relates to primers used to adhere inorganic thin films to plastic films. Background technique [0002] The surface of the plastic substrate is coated with various polymers as the main component of the primer, and then an inorganic film containing aluminum, tin, etc. is formed. Plastic), depending on the type of substance used as the inorganic film, the thickness of the film, etc., it has been used well in the past as packaging materials such as bottles, caps, and gas barrier films, transparent conductive sheets, and film capacitors. In addition, among film-like plastics with an inorganic thin film, in particular, vapor-deposited aluminum-plastic films having an extremely thin aluminum layer of about tens of nm are widely used as decorative film members. [0003] However, in plastics with an inorganic thin film, there is a problem that whitening sites are generated on the surf...

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 Applications(China)
IPC IPC(8): C09D133/10C09D133/12C09D125/14C09D133/08B32B15/095B32B27/08
CPCC09D7/40C09D133/08C09D133/14C09D175/04
Inventor 山崎彰宽东本彻
Owner ARAKAWA CHEM IND LTD