CN101007912A - Ferrous decorative composition sensitive to magnetism - Google Patents

Abstract

The invention relates to construction field, which in detail relates to decoration field. It means to provide a new frist coat or paint compound, by coating which to make non- iron surface be sensitive to magnetism, and thus apparatus equipped with magnet can be assembled or fixed. The compound is characterized in that the compound is composed of adhesion agent, water, or organic solvent, anti-redeposit agent, and diepersing ferrous powder, and said adhesion agent comprises water- soluble or water- insoluble composite resin.

Description

Ferruginous new decorative composition to the magnetosensitive sense

Technical field

The present invention relates to building (construction) field, relate more specifically to the decoration field.

More specifically, the objective of the invention is priming paint or coating novel composition, it is used for making any non-iron surface to the magnetosensitive sense by applying such some compositions, so might assemble or the fixing article that are equipped with magnet.

The present composition is characterised in that they keep being dispergated iron powder by the anti-deposition agent again of tackiness agent, moisture or organic diluting solvent and use and form, and this tackiness agent is made up of water insoluble or water-soluble synthetic resins.

In addition, under the situation of using water-soluble synthetic resins, preferably consider to add rust-preventive agent, thereby make the present composition not have painted any danger.

Composition of the present invention has important use; wall ornamentation face for example; particularly decorate or protect paint, priming paint (sous-couches) or the coating of surperficial any facing, also for example produce panel, board of education or be used to accept paint, priming paint or the coating on any surface of magnetic article (being magnet or the article that one or more magnet are arranged).

In the application for a patent for invention 03.11920 that proposed on October 10th, 2003, describe of a sort composition, explicitly called for its right of priority here.

In this patent application, the paint to the magnetosensitive sense has been described.

According to this existing application for a patent for invention, the new filler that the objective of the invention is a kind of any kind of structured material or solid cladding, it is characterized in that it contains the iron powder of determining granularity, its iron powder is to be dispersed in the tackiness agent and to become fluidic with a kind of volatile organic solvent.

More specifically, this tackiness agent is selected from glycerine phthalide resin, urethane resin (PUR) and Resins, epoxy, generally speaking, and any plastics not too responsive to humidity.

Make tackiness agent dilution and fluidisation, and favourable its dispersion and the solvent that uses is aromatic solvent or aromatic solvent mixture.Because industry and environmental safety are preferably used the low aromatic substance of hazardness or inflammableness, for example as following single or blended aromatic substance:

-toluene,

-dimethylbenzene,

-durene,

-cumene,

-1.

Especially, when using under ordinary temp, use toluene or dimethylbenzene to dilute its solid aromatic hydrocarbon, obtain a kind of liquid form mixt to the solid aromatic hydrocarbon.

Iron powder has the granularity of fully determining, preferably 10-120 micron, more particularly 30-60 micron.

For the application of its consideration, iron particle size needn't be very thin or ultra-fine.But in composition of the present invention, iron powder can not form grumeleuse or can not hinder that to launch filler of the present invention with brush or roller just very suitable.

In fact, the present invention to solve but from open question be iron powder its insoluble carrier, distribute with the preservation problem.Even in containing any medium of some water, iron powder if when especially it is very thin (iron powder of producing with hydrogen reducing), can both oxidation generate ferriferous oxide, particularly sesquialter ferriferous oxide, also generates iron carbonate.The defective that generates more such iron content derivatives is that this mixture is distinctive painted, and for example the ferriferous oxide powder makes it painted, therefore, needs to add suitable pigment and cover this color.Simultaneously, reduced its magnetizability.

Employing is avoided the optimization granularity of any oxidative phenomena, no aqueous adhesive and the anhydrous organic solvent of water can not be provided to mixture, has solved this technical barrier at the invention composition of first to file.

Summary of the invention

Therefore, composition of the present invention contains Powdered iron powder, a kind of tackiness agent, preferably as glycerine phthalide resin and a kind of aromatic solvent.The mixture that obtains thus is fully mobile, simultaneously still even, and iron powder also fully disperses.

Like this, the glycerine phthalide resin can be saturated by iron powder, and have higher attraction power.

Also can use urethane resin or poly epoxy resin, the result who obtains is satisfactory too.

The present invention is prevention according to another problem that relates to solution in first to file or eliminates the possible catalysis problem that makes polymkeric substance generation depolymerization, decomposition or oxidation in the tackiness agent because of the iron powder existence.For example Resins, epoxy, particularly carbohydrate resin carry out having relevant chemical reaction with the trace iron ion.The epoxy bridge is very sensitive to existing of a kind of like this iron.Cause starting depolymerization reaction thus or cross polyreaction.

The effect of adding iron powder in the said composition is to make its composition that the atmospheric oxidation phenomenon is become very sensitive.This iron powder or even spontaneous combustion, but fire hazard also.

Select the optimization granularity of iron powder and use special tackiness agent to cause to weaken these defectives, even do not have these defectives.

These compositions in first to file have enough flowabilities, therefore, can launch or be coated in the porous of any kind or atresia, on rigidity or the non-rigid solid substrate.Composition of the present invention can also adopt and spray or the atomising method coating, also will dilute its composition with this solvent mixture in case of necessity.Therefore, should use pressurized spray gun to apply this composition.Under the situation of the composition that adds thickening material or solidifying agent, this coating can carry out molding.

When the excessive use of the present composition of first to file, can be reclaimed if necessary.After the recovery, these compositions are packed with packing material under secluding air.It is very gratifying preserving like this, and this composition can be preserved the several months and not have any infringement.

The result, the preparation difference that non-siderophore is become to the magnetosensitive sense in the present composition of first to file and prior art is, these are not to be used to be coated in paint on the interior or outer base material but priming paint, its base material randomly applies one deck pigmented layer or a neutral wall, so that make single coating or be the coating of sandwich-like, therefore be in the ability where all pair magnetic susceptibility is arranged.

Additive or other auxiliary that also may contain other at the present composition of first to file.Can wherein add mineral filler material, inorganic or pigment dyestuff, slippage agent, binding agent, brightening agent, matting agent in the past, give the agent of nacreous lustre and/or avoid occurring suddenly fungi and mould anti-mycotic agent.

A kind of like this feature of magnetisable priming paint is that also the weight ratio of iron powder and tackiness agent is 1: 10 to 9: 1, preferably 2: 5 to 1.5: 1, and more particularly 1.5: 1.

Embodiment

Composition of the present invention is the improvement according to the described and claimed composition of first kind of mode formerly.These compositions are characterised in that the dilution tackiness agent, and it is mobile that tackiness agent is become, making its easier dispersive institute with an organic solvent, no longer is a kind of aromatic solvent or aromatic solvent mixture, but a kind of mixture of the saturated aliphatic compound of selling with trade(brand)name White Spirit.It relates to a kind of liquid product colourless, that very easily move, the fine solvent of the non-combustible organic compound of high temperature, and it can reach and make tackiness agent be easy to disperse, and keeps its low volatility simultaneously.The ratio of this solvent is the 10-50% of total mass.Therefore, composition of the present invention can be kept in the airtight container for a long time, but also can be exposed under the air, and it can carry out drying, promptly loses its solvent at short notice.Therefore, can carry out this desolvation, can not emit deleterious steam or not have very high danger of combustion.

According to another mode, illustrate to the invention is characterized in that these compositions contain solubilized and maybe can be dispersed in tackiness agent in the water.In this case, no longer must need organic solvent, add the water of appropriate amount and can regulate the rheology constant of said composition.Advantageously, this tackiness agent is a kind of thixotropic agent, and the effect of stirring its thixotropic agent is to reduce the viscosity of medium, therefore can be easy to launch.A kind of like this thixotropic agent has its viscosity and low flow after leaving standstill back or expansion, therefore help to stick to fully on the coating carrier.

According to an optimal way of the present invention, the tackiness agent that solubilized maybe can be dispersed in the water is a kind of acrylic paint or polyurethanes paint.Some paint are polyacrylic acid or polymethyl acid solution or the air suspension liquid that randomly contains stablizer or polyreaction retarding agent like this.

This thixotropic agent for example is a kind of derivatived cellulose, as straight chain or crosslinked methylcellulose gum, ethyl cellulose, beta-hydroxyethyl Mierocrystalline cellulose or carboxymethyl cellulose.

This antioxidant for example is a kind of phenol derivatives or a kind of iron-retention agent.Can enumerate butylated hydroxy anisole (BHA) or Butylated Hydroxytoluene or pyrogallol for this reason,, can enumerate phosphorous derivant as an example, kine bias phosphoric acid, trisodium phosphate, phosphoric acid-metaphosphoric acid mixture or zinc phosphate as iron-retention agent.

Can also add antiskinning agent (anti-peau) toward composition of the present invention, can stop the compound that forms the solid pellicle in the preservation process on the surface, this solid pellicle hinders coating or forms uneven coating.

A kind of like this antiskinning agent example for example is methyl-ethyl-ketoxime (c é toxime), and its dosage is 0.5-5%.

For example the present invention defined in claims is not limited to the strict theme as definition, but also comprises the technical equivalents of tangible embodiment or improvement and all description technique schemes.

Application of paints of the present invention particularly is equipped with the Educational toy of magnetization part in producing toy.

They also are applied to make sale equipment, setting, panel or the display canopy of the heavens.

Can be directly used in when coating of the present invention mixes with slate flour and make teaching or home plate, its plate can be write with chalk, and erasable also can accept to magnetize article.

Claims (14)

1, according to after the basic demand coating, be used to make nonmetallic surface to become to the improvement of the priming paint or the coating composition of magnetosensitive sense, it is characterized in that the diluting solvent that they contain is a kind of aliphatic hydrocrbon or aliphatic hydrocrbon mixture.

2, improvement according to claim 1, this improvement are that this diluting solvent is White Spirit.

3, improvement according to claim 1 and 2, wherein the diluting solvent content in these compositions is the 5-40% of total mass.

4, improvement according to claim 3, wherein diluting solvent content is the 10-30% of total mass.

5, according to the described improvement of arbitrary claim in the aforesaid right requirement, wherein this tackiness agent is a kind of glycerine phthalide resin.

6, according to the described improvement of arbitrary claim in the aforesaid right requirement, wherein this iron powder has the granularity of special adjusting.

7, according to the described improvement of arbitrary claim in the aforesaid right requirement, wherein iron particle size is the 10-120 micron.

8, according to the improvement of the priming paint or the coating composition of basic demand, it is characterized in that this tackiness agent is that a kind of solubilized maybe can be scattered in the tackiness agent in the water.

9, improvement according to claim 8 is characterized in that the tackiness agent that solubilized maybe can be scattered in the water is a kind of acrylic acid or the like or polyurethanes paint.

10, according to Claim 8 or 9 described improvement, it is characterized in that this composition also contains a kind of thixotropic agent.

11, according to Claim 8 the described improvement of arbitrary claim-10 is characterized in that this composition also contains a kind of antioxidant.

12, priming paint or the coating composition that obtains according to the described improvement of arbitrary claim among the claim 1-11.

13, the purposes of composition according to claim 12 in making teaching or home plate or panel, available chalk is write on its plate or the panel, and erasable also can accept to magnetize article.

14, the purposes of composition according to claim 12 in making sales tool, setting, panel or the display canopy of the heavens.