JPH0483100A - Bolt fixing cartridge excellent in light resistance - Google Patents

Abstract

PURPOSE:To improve light resistance and stabilize product quality by receiving thermosetting resin including a coloring agent not reacting to resin in a breakable container and forming a bolt fixing cartridge consisting of resin and a hardening agent separated therefrom. CONSTITUTION:Simply breakable glass or the like is used for a container of a bolt fixing cartridge and a mixture of reactivity monomer like unsaturated polyester resin capable of being easily set at the room temperature is used for thermosetting resin. Organic peroxide of benzoylperoxide or the like is used for a hardening agent, and a setting accelerator and polymerization inhibitor can be added to the thermosetting resin, and if necessary aggregate like silica is used. A Lake pigment or the like and a mixture thereof are used for a coloring agent not reacting to resin. Thus, light resistance can be improved without degrading fixing performance.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to concrete, rock, etc. (hereinafter referred to as base material).
The present invention relates to a bolt fixing cartridge for fixing an anchor bolt.

[Conventional technology]

Conventionally, the method of fixing anchor bolts was to drill holes in the base material.
A capsule is loaded into the hole, and an anchor bolt connected to a hammer drill etc. is rotated and struck into the hole, and the anchor bolt is inserted into the hole to crush the container and thermosetting resin such as unsaturated polyester resin contained in the container. A method of hardening anchor bolts and fixing them is known (Special Publication No. 38-1).
2863).

Most of the thermosetting resins used in these adhesives were of the type that hardened through radical reactions.

Since the resin was designed to harden at room temperature, the workability of anchor construction was excellent. On the other hand, in the sunlight,
It was highly sensitive and reactive to visible and ultraviolet light. If the container was a colorless glass tube, most of the light with a wavelength of 350 mm or more would pass through, and the resin would gel in a short time, so it was housed in a colored glass tube.

[Problem that the invention is trying to solve]

If the colored glass tube is used only to protect the resin, the problem can be solved by using jet black glass. but,
With jet black glass, it is not possible to check the fluidity of the contained resin (checking the fluidity of the resin is essential when checking the performance of bolt-fixing cartridges).

In addition, for brown glass, 90% at 350nm and 450nm
The absorption is about 80% at 550 nm, and about 40% at 550 nm. Therefore, even if colored glass is used, the storage stability of the resin cannot be improved.

[Means to solve problems]

An object of the present invention is to provide a cartridge for bolt fixing that can withstand visible light and ultraviolet rays in sunlight for a long time without deteriorating its performance as a fixing agent.

That is, the present invention provides a cartridge for bolt fixing that contains a thermosetting resin in a crushable container and a curing agent that is separated from the resin, and is characterized in that the resin contains a coloring agent that does not react with the resin. This is a cartridge for bolt fixing.

The container used in the present invention is not particularly limited as long as it can be easily crushed by the rotation or impact insertion movement of an anchor bolt attached to a drill during construction, but examples include glass, ceramics, porcelain, synthetic resin, and paper. etc.

The thermosetting resin used in the present invention can be easily cured at room temperature, and includes, for example, unsaturated polyester resin, vinyl ester resin, epoxy acrylate resin, etc., and reactive monomers such as styrene monomer and methyl methacrylate. It is a mixture of bodies.

The curing agent used in the present invention is an organic peroxide such as benzoyl peroxide, methyl ethyl ketone peroxide, acetyl peroxide, and the like. Further, a curing accelerator for accelerating curing of the resin can be added to the thermosetting resin. Examples of hardening accelerators used include amines such as dimethylaniline, diethylaniline, and dimethylparatoluidine; metal soaps such as cobalt naphthenate, cobalt octoate, and manganese naphthenate;
These are chelate compounds such as vanadyl acetylacetonate and iron acetylacetonate. Furthermore, a polymerization inhibitor such as hydroquinone or naphthoquinone can be added to maintain the stability of the resin. Further, if necessary, aggregates such as crushed stone, natural crushed stone such as marble, or artificial stone such as magnesha clinker can also be used.

The coloring agent that does not react with the resin, which is a feature of the present invention, is
Those that dissolve and color the reactive monomers contained in the resin, or those that are substantially uniformly dispersed and do not decompose during long-term storage, such as lake pigments, azo pigments, phthalocyanine pigments, high-grade organic pigments, and inorganic pigments. , single items and mixtures thereof.

For example, it is sold under product names such as Toner Yellow, Toner Brown, Toner Green [manufactured by Takeda Pharmaceutical ■], Colortex Brown, Colortex Orange, Colortex Maron [manufactured by Sanyo Shiki ■], and Oplus Yellow [manufactured by Orient Chemical ■]. Examples include, but are not limited to, those that exist.

The composition of the bolt fixing cartridge of the present invention is as follows: 0.00% colorant per 100% weight of thermosetting resin, which is the main component.
05-2.0 parts by weight, curing accelerator 0.05-5 parts by weight,
A range of 1.0 to 20 parts by weight of the curing agent is preferred.

Furthermore, two or more of the above coloring agents may be used in combination, if necessary.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to Examples.

Example 1 A colorless glass tube and a brown glass tube with an outer diameter of 13 mm, a wall thickness of 0.6 mm, and a length of 100 mm were coated with unsaturated polyester resin 100 mm.
The container was filled with 5 g of a mixture containing 1.0 parts by weight of dimethylaniline, 0.2 parts by weight of monohydroquinone, and 0.1 parts by weight of a coloring agent (manufactured by Orient Chemical Co., Ltd., Obras Yellow #130), and the container was melt-sealed. did. Next, this cartridge was placed in a glass tube stand and placed under direct sunlight for an exposure test. The time required for the resin to lose its fluidity (gelling time) was observed. The results are shown in Table 1.

Example 2 A cartridge was prepared in the same manner as in Example 1, except that the colorant used in Example 1 was replaced with Toner Green (manufactured by Takeda Pharmaceutical Co., Ltd., trade name), and an exposure test was conducted. The results are shown in Table 1.

Example 3 A cartridge was prepared in the same manner as in Example 1, except that the colorant used in Example 1 was replaced with Curlertex (manufactured by Sanyo Shiki ■, trade name), and an exposure test was conducted. The results are shown in Table 1.

Comparative Example 1 A cartridge was prepared in the same manner as in Example 1, except that no colorant was used, and an exposure test was conducted. The results are shown in Table 1.

Table 1 [Effects of the Invention] The bolt fixing cartridge of the present invention had significantly improved light resistance by adding a colorant, and the stability of the product was obtained.

Patent applicant: Asahi Kasei Industries, Ltd.

Claims (1)

[Claims] 1. A bolt fixing cartridge comprising a thermosetting resin contained in a crushable container and a curing agent separated from the resin, the bolt characterized in that the resin contains a coloring agent that does not react with the resin. Fixed cartridge.