JPS58138609A - Manufacture of resin mold - Google Patents

Abstract

PURPOSE:To manufacture easily a durable resin mold by a method wherein the shape of a mold is transferred to a reaction hardening coat on a base material and then ultraviolet or electron rays are irradiated to harden the reaction hardening coat. CONSTITUTION:The reaction hardening coat is formed by using a composition containing reaction hardening resin consisting of reactive monomer and/or reactive oligomer on the base material such as plastic film, plstic sheet, paper, synthetic paper, etc. The shape of a mold is transferred to the reaction hardening coat before the ultraviolet or electron rays are irradiated and reaction hardening coat is hardened to manufacture a resin mold. The compounding ratio of thermoplastic resin to the reaction hardening resin is the reaction hardening resin 5-100pts.wt. to the thermoplastic resin 100pts.wt.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method V for easily manufacturing a 5tktv with excellent durability.

Conventionally, methods for producing resin include cast molding using thermosetting resins such as phenolic resins, unsaturated polyester resins, silicone resins, diallyl phthalate resins, epoxy resins, and mediamine resins, or spray molding methods. There are known methods for applying heat and pressure to a droplet preg of thermosetting resin or a composite material thereof.

However, in the above conventional method, the vine resin used is limited, and i! ! Compared to the type, Tsuriosaki Seki veL, or also,
It has some disadvantages, such as the fact that the material used is not flexible, making it difficult to roll up and handle the long length.

The present invention has been made in view of the drawbacks of the above-mentioned conventional methods. The process is characterized in that it is carried out in one process, the step Ii2 for transferring the shape of the mold (reaction curable coating film), and the step 113 for curing one reaction curable resin g5v.

The present invention will be described in detail below.

First, in step I11 of the present invention, a reactive curable resin 1 is formed on a base material using a composition containing a reactive curable resin 11IIP.

In the above, as the base material, a plastic film or sheet, paper, synthetic paper, textile fabric, nonwoven fabric, glass cloth, metal foil, etc. can be used, and a flexible one is preferable.

Next, in the above, reaction curable resin is included*m111vl
A reaction-curing resin for llvi [composition containing] H! In addition to phenolic resin, melamine resin, epoxy resin, diallyl phthalate*, unsaturated polyester resin, alkyd resin and silicone resin, thermosetting resin, E1 reactive monomer and/or reactive oligomer V. I can do it.

The composition containing the reactive curable resin has the above-mentioned assemblage or i) v main barrier component, and a thermoplastic resin #11 soluble therein.
．． ＠T＠ agent, stabilizer, ultraviolet absorber, 11° condition, thermal 1 gold catalyst, photo-enhancing agent, reaction accelerator, 1-inhibitor, #l＠, diluent, filler, etc. what will become v
I can do it. As a reactive 7-mer, light 1
Synthetic monomers can be used, such as acrylic acid or acrylic acid esters, methacrylic acid or methacrylic acid esters, acrylamides, vinyl ester noodles, N
-Vinyl lactams, N-vinylpyridine-, maleic acid or maleic esters, fumaric acid or fumaric acid esters, ff1JIIj vinyl derivatives, vinyl ethers, etc. Non-volatile high boiling point monomers are preferably used. As an oligomer, it has a functional group or an unsaturated group V at the terminal or side chain and has a molecular weight of 50.
0 to 1α000 1 Can be used, oligomers of butadiene and imprene, oligomers containing epoxy groups and isocyanate groups, oligoester acrylates; oligostyrenes, oligoesters, oligoamides, oligosiloxanes with hydroxyl or carboxyl groups at the end , phenol formaldehyde, carbamide: oligovinylene, oligophenylene, oligoacetylene, oligophenylene quinone, etc. [all of which are preferably polyfunctional rather than monofunctional.

Next, the following reactive oligomers, reactive oligomers'-
Thermoplastic camellia fat that is soluble in -1 and styrene co-resin, polymethacrylic methyl, ethyl polymethacrylate, polyethyl acrylate, polyacrylic butyl, etc., the sole parent of acrylic or methacrylic resin is synonymous resin, rosin, rosin-modified maleic resin , rosin-acoustic phenolic resin, gin ester resin such as rosin, bog #
Vinyl resin, Coumaron resin, vinyl toluene resin, vinyl chloride resin, vinyl acetate #i composite resin, polyester resin, polyurethane resin, butyral 41i [1% of one or more of polycarbonate resin, polyamide resin, etc.] Can be used.

Island i'l#I! The compounding ratio of Nara 1i- and the reaction-curing resin is 100 parts of IIk Machi-Siki 1i to 100 parts of I1 reaction-curing mris, and below 5 parts of the reaction-curing resin, the reaction of the reaction-curing resin is is insufficient for sufficient curing, and when it exceeds 100 ml, it becomes sticky before curing, making it extremely inconvenient to handle.

Examples of antidiarrheal agents include phthalosodyptyl, dioctyl phthalate 9ate, cresyl, dioctyl sepacate, maleic ester, diallyl phthalate, etc. Stabilizers include metal soaps such as calcium stearic acid, organic tin compounds, etc. Agents include benzophenone and its derivatives, salicylate and its derivatives, benzotriazole and its derivatives, etc., and active agents include stearic acid and lauric acid based metal soaps, organotin fatty acid salts, fatty acids and their derivatives, and paraffin. Hydrocarbons such as wax and low molecular weight ethylene, thermal polymerization catalysts such as benzoyl peroxide, methyl ethyl ketone peroxide, tertiary butyl perpenzoate and dicumyl peroxide, and reaction accelerators such as dimethylaniline and naphthene soap. Cobalt fathom can be used. Note 1
When using reactive oligomers and/or reactive oligomers, it is necessary to add a photosensitizer V to initiate photoenrichment when UV rays are needed to cure them, and they are used for this purpose. Examples of photosensitizers include benzoin, benzoin ethyl ether, benzoin isobutyl ether, benzyl, diacetyl, benzophenone, acetophenone, anthraquinone, etc., and their fj derivatives. It is used in the range of L1 to 10 for the oligomer.

In the present invention, it is also possible to add a polymerization inhibitor for the purpose of preventing reaction V before the curing process of the reaction-hardening tube*m.
The reactive monomer and /■ are 1 for the reactive oligomer.
00 p]) m or α1ss may be added.

Glass fiber and glass peas are used as filling material.

Inorganic materials such as carbon 5lJ11, charcoal, and voxel; organic materials such as cellulose and thermosetting resin fine powder; etc. [Can be used.

The above-mentioned various raw materials are mixed in advance using a propeller book disperser, various mixers, etc., and then applied to the surface of the base material using a known method and dried to form a reactive hardening material.
ke form. **For example, gravure roll coat, roll coat, spray coat), na47=y-)
This can be done by coating or printing methods such as spray coating, dip coating, kiss coating, spinner or wheeler foot printing, and silk screen printing.

Next, the process of transferring the shape of gold to the reaction-curable coating film obtained as described above will be explained. This process itself is a known process, and the material of the gold may be iron, brass, etc. Using aluminum, steel, stainless steel, etc. 1, after forming the desired metal part shape by mechanical cutting, electrical discharge machining, electrolytic machining, electroforming, etching, etc.
□! Plating with chrome, trowel, nickel, etc. as required 1
The embossing can be carried out using a flat press or a roll press.

Next, as described below, the shape of the mold is transferred to the reaction-curing coating, and then a curing step is carried out in which the reaction-curing coating is cured.

In the curing process, the reaction hardening tube-11 as described above is used.
Any method may be used as long as it can be cured without damaging the shape of the metal stamp transferred to the surface, including heating with a heater or hot air, irradiation with ionizing radiation such as electron beams or ultraviolet rays. be able to. Electron beams are emitted from various electron beam accelerators such as Kotscroft-Walton type, Bumpgraph type, Kyohata sound pressure type, insulated core transformer type, linear type, Tyna1) type, and high frequency type.
~1000 KeV, preferably 100-500 KeV
@illノz*)k'f-? An electron beam with a magnetic field is used. Reactive Curing Properties III-1 If a curtain-shaped electron beam, usually carried from a linear filament, is irradiated onto the substrate while it is continuously running, the reaction-curing property III-
Continuous curing is possible.

Alternatively, ultraviolet rays may be used instead of electron beams, and as the ultraviolet rays, ultraviolet rays emitted from an ultraviolet source using a light source such as an ultra-high pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc, a xenon arc, a metal paralite lamp, etc. are used. Reactive hardening! ! ! Continuous curing is possible by irradiating a single material provided with a film matrix while continuously running it. There is no particular limit to the intensity of the ultraviolet rays, but 50 W/a for curing efficiency.
ll-160W/cs is preferable.

Through the above curing process, the shape of the mold is transferred to the reaction-curable I! ! The membrane layer is cured by crosslinking of the thermosetting IM 11 & reactive hexamer and/or reactive oligomer contained therein.

According to the manufacturing method of the present invention, reaction curability! ! ! Since the thermosetting 4IlIIIi reactive monomer and/or reactive oligomer pre-contained in one film layer is crosslinked, the protective layer is more effective than when a protective layer is formed using a paint mainly consisting of a simple thermoplastic arm. It is possible to make a resin mold with extremely excellent durability such as heat resistance, cold resistance, abrasion resistance, scrap resistance, and rutting resistance, and each step of the manufacturing method of the present invention is a process itself known in the art. Since it is made by the method described above, it has the advantage of being able to manufacture the hat from scratch.

However, when the reaction-curing coating is formed on the base material, the reaction-curing 11M111IV is incorporated, so the surface does not heat up and the mold is coated. Even when transferring shape 1, it does not stick to the mold or ooze out of the mold after transfer, and since the inside of the mold is uncured, it is easy to faithfully reproduce the shape of the mold. .

Furthermore, according to the present invention, there is a wide selection range of vine resins to be used.
By using ultraviolet rays or electron beams as a curing means, it is possible to cure short lengths, and by selecting the base material and the material of the reaction-curable tube, flexible products can be obtained, making it possible to cure long lengths. It is also possible to use reactive hardening methods.
Since II itself hardens, it has good properties and has many advantages, such as the ability to add a silicone release resin to the noodles if necessary.

Therefore, Takaaki Moto's method is most suitable for the #4 &#4 resin layers for plastic lenses and #J fabric resin layers for cosmetics.

81 patentees Dai Nippon Printing Co., Ltd. inspector

Claims (1)

[Scope of Claim] A method for manufacturing a resin mold including each process slv of 111 or less. -) Using a composition containing a reactive curable resin on the base material,
IN process to form reaction-curable l11ilK-. (Transferring the shape of the BL mold onto the reaction hardening eyelid W-@2
process. (C) 11M step of curing reaction curing Jukiko-1. Ward! ) Reactive curable '/l14fi+ consists of a reactive hexamer and/or a reactive oligomer, and the reactive curable am@ is cured by ultraviolet rays or electronic irradiation.Claim 1! (1) Clause Spear Tree fiI
Method for producing IJl.