JPS62127365A - Paint composition - Google Patents

Abstract

PURPOSE:To provide a paint compsn. having excellent moisture permeability and gloss and suitable for use as an interior and exterior finish paint compsn. for buildings, by using a composite emulsion obtd. by emulsifying simultaneously colloidal silica and an acrylic resin as a principal component for a binder and reducing the volume concentration of a pigment. CONSTITUTION:Colloidal silica and an acrylic resin are simultaneously emulsified to prepare a composite emulsion. The composite emulsion is used as a principal component for a binder and blended with a pigment component (e.g., titanium oxide or calcium carbonate) and additives such as a film-forming acid, a thickener, a surfactant, etc. to obtain the desired paint compsn. having a volume concentration of the pigment of 0-20%. The paint compsn. has excellent water vapor permeation. Thus, when it is applied to buildings, water vapor formed indoors is not condensed and hence no dewing. Accordingly, a coated finish surface which does not undergo any damage by freezing in a cold district can be formed.

Description

Detailed Description of the Invention (Field of Industrial Application) The coating composition of the present invention is characterized by moisture permeability and gloss, so it can be used for the interior and exterior of buildings, especially in cold regions (it does not suffer from frost damage). It is used as a paint.

(Conventional technology) What about conventional paints for finishing buildings? There are various types, such as those that are moisture resistant, those that are waterproof, and those that are glossy or non-shiny. There was no one that had moisture and gloss. Conventional glossy paints are generally transparent and have no 111 properties, and when painted on a building, water may form inside the walls, causing condensation and condensation. (Wall condensation) can cause various negative effects such as a decrease in insulation, a decrease in the strength of wood due to decay, and the generation of moss. It seems that there is a defect in the structure rather than a defect in the coating, and when water gets into the body of the coating, it often appears as blistering or peeling.Especially in cold regions, this is noticeable as frost damage.
tfco.

(Problem C to be Solved by the Invention) Conventional fT glossy materials are not transparent or q-sensitive.

Therefore, condensation on the wall is prevented, and even if moisture gets into the lit side of the paint film, no problems will occur! The glossy paint that can form a film is used in i4ro.

(Means for solving the problem) In this invention,! As the main component of the binder in No. 14, a composite emulsion made by co-emulsifying a colloidal resin and an acrylic resin is used, and the pigment content of this paint is 0 degrees 11)\
'C) Or O ~ 200 -) The result is the 1 - ``poor.''
) The ring 1'↑Kamimarunono/ which co-emulsified the colloidal glue force and the acrylic resin is 2 + c (7 Nlenorica and acrylic t811M 2 1-1 100:')
;1;119te combination L, ・F-combining unsaturated 2・T in the molecule
It is made by co-emulsifying 1) and alcoquine 7-group-containing monomer (i'), and it is made by co-emulsification.In particular, the ratio of CoCJ Idal Norica and acrylic stringer 1h is 12
(Polymerized at a ratio of ~310%) (Polymerized polymer has good water resistance and excellent water vapor permeability (transparent), so when used in paints, it is transparent and forms a coating film that is collapsed to 9%. Be it.

In addition, if this 19-coat emulsion is used to make a paint; if the clear coating is t↓, the PVC is 0%; if the paint has low hiding power, the PVC is %;
+1 lower, if it is a paint with normal 1 hiding power, that l'
VC is about 5% to 20%. This PVC20
If it exceeds %, the gloss after drying of the paint will deteriorate, making it impossible to obtain a glossy paint, which is the object of this invention.

In addition, the binder is near) revenge.
It is good to use Italunorika together. Depending on the solid content ratio, it is 1/(If it is less than 3, this inventive power i) is 7.
｜ﾆﾞﾞｲｲｲﾞ

There are no desks including 9th grade) or 11th grade.

Pigment components used in this paint include: titanium oxide, zinc IIG, carbonic acid, clay, talc, mica,
Silica stone, glass powder, and pearlite powder should be used. Used in regular water-based paints, additives such as additives, thickeners, preservatives, 1 part solvent, 1 part plasticizer, 1 part solvent, 1 degree dispersant, defoaming agent 1.1 Use anti-mildew agents as appropriate.

(Function) The coating composition of the present invention can form a moisture-permeable film by using a composite emulsion, which is a co-emulsified colloidal adhesive and an acrylic resin, as a binder.

(Example) The present invention will be explained below with reference to Examples and Comparative Examples.

Example 1 A composite emulsion in which colloidal glue and acrylic resin were simultaneously emulsified was mixed with an emulsion manufactured by Dainippon Ink and Chemicals, Honcoat DV-823 (solid content 41
%) and the paint formulation is as follows.

Composite Emaru no Yono 1001 Gibe Oxidation Mitsuno 23 Shield Amount 5 Real Acid Cuff 7
Um 5 parts by weight bond membrane aid cutting 1 anti-freezing cutting 51 tonne addition cutting
31 top □nomasa fii :'tTr i'
1 distribution in 3 cities,
1 water 10 parts other additives + 1t 1 product 1 1 part by weight (PVC
15%) In addition, the interfacial t1η property agent includes 1-value lubricant, 1-value lubricant, 711
Contains foam cutting.

In Example 2, the same emulsion as in Example 1 was used.

) V Go Emal no Yono ° 100 weight 1 part Chikuno oxide 10 parts by weight Mica powder
34 Heavy insect part coating assistance, antifreeze cutting
5.R volume increaser
311 [Surfactant
3 Ichirube blended water 5 parts by weight Other additives 1 part by weight (P
VC8%) In Example 3, the same emulsion as in Example 1 was used to prepare a clear paint. This formulation is as shown in 3 below.

Composite emulsion l OO City 4 parts Antifreeze agent, film forming aid 2! ■9 parts surfactant (
Antifoaming agent) 1 part by weight thickener
0,5'';i'A part preservative~1.
Antifungal agent 05 City rn part Example 1 is the same emulsion as Example 1 + Iu and acrylic synthetic resin Emulnodino (human []] manufactured by Hon-Inoki Chemical Industry Co., Ltd.
-1! :/Coat EC816, solid content 45%) was used in combination to create Coating 1F.

The formulation of this paint is as follows.

Composite emulsion 7 80 '1? 'i
T part acrylic emal noyono 1881 yen'n
+1 (oxidized ditano 31 layers in
+TJE antifreeze, film forming aid 5 parts by weight Surfactant Add 1 part of 3 parts Water mixed with 3 parts
10 stacking parts Other additives
1 Suspended part (PVC 15%) Example 5 In addition to the same emulsion as in Example 1, a paint was prepared by using coloiglunorica (Q 825 manufactured by Nissan Chemical Industries, Ltd., solid color content 25%) as a binder. It was created.

The formulation of this paint is as follows.

Composite emulsion 70 parts by weight 80 parts Colloidal glunorica 32 parts by weight Titanium oxide
30jf parts antifreeze, film forming aid
5 in vermis interfacial agent
3 if quantity part increase
3・rI'? 1. 'I; Mixed water
5 weight m ′jI so(additives
IF... (P~'CI2O3) In Comparative Example 1, the t)vc of the paint was set to 25%, and the emulsion 9 of Example 1 was changed to 56·riM parts and the paint was mixed. , Comparative example 2: Yotsu-koku 1 and P
In the same way as VC, the binder was Co [J Ital Norica (Nissan Chemical Industry Co., Ltd. 17QAs 25. Solid content 25%) and acrylic resin Emulsion (311Tor): Soap-free emulsion manufactured by Kagaku Kogyo Co., Ltd. solid content 45%),
Accordingly, the colloidal Norica to emulsion ratio was set to 21 with isomorphic partial pressure.

Further, in Comparative Example 3, a commercially available Emul/-I-Bay/T, Hinideranox, manufactured by Kansai Paint Co., Ltd., and in Comparative Example 4, a silicic acid paint, Norica Bait, manufactured by Kikusui Chemical Industry Co., Ltd., were used.

Tests on these paints measure moisture permeability and gloss;
Moisture permeability was measured in accordance with JIS Z0208, using a 4 mm thick flexible board as a base), and each paint was spray-painted thereon, dried at room temperature, and gloss and moisture permeability were measured.

The test results are listed in Table 1 below.

As can be seen from the above results, the coating composition of the present invention is both glossy and transparent.

In addition, other than the above gloss level and 479 degrees, when accelerated weather resistance was tested, especially as in Example 4, when compound Emarunokun and ordinary Emaruno Yono were used in combination, r-composition, but with addition of pigment and f-coloured sky color, The degree of fading was the least.

(Effects of the Invention) By using the paint of this invention, it is possible to obtain a finished coated surface that is free from frost damage even in cold regions.

Furthermore, the paint of the present invention can be used as a finishing paint for conventional cement-based or silicic acid-based pattern paints to achieve gloss while maintaining moisture permeability.

Patent applicant: Kikusui Chemical Co., Ltd.
1. 'Ifl161zu[;)Mon/ノ111, ijl'
1.1 Revision Request No. 267 of 1985! IU
Tsu 2, name of the invention ■turtle paint group 1 friends 3, ill positive (ru blue 'B I'l relationship t, y jT applicant 14 no. 1
No. 6 Toyo Building (unchanged) Description 1 Name of the invention Paint composition 2, Claims Synthetic resin emulsion coating + Colloidal glue and acrylic resin as the main components of the binder as constituent elements in the composition Using a composite emulsion that simultaneously emulsifies
A coating composition characterized by having moisture permeability and gloss.

3. Detailed Description of the Invention (Field of Industrial Application) The coating composition of this invention is characterized by moisture permeability and gloss, so it can be used for the interior and exterior of buildings, especially as a coating that does not suffer from frost damage even in cold regions. It is also used as a wood paint.

(Prior art) Conventionally, there have been a variety of paints for finishing buildings, including those that are moisture permeable, those that are waterproof, and those that are glossy and those that are not. There was nothing prepared. Traditional glossy '2! In the department,
In general, there is no moisture permeability, and the paint is t1! When painting a building, the water vapor generated indoors condenses inside the walls, causing condensation (
(Condensation inside walls) can cause various problems such as reduced insulation, decay of wood, reduced strength of parts, and the growth of mold and moss.Also, defects in the paint film itself can cause structural defects. When this occurs and water gets into the body of the media, it is likely to appear as blisters or peeling. Especially in cold regions
I freeze, it became IF and was clearly expressed.

When looking at paints for woodworking, clear, glossy, transparent paints, urethane resin paints, and amino alkyd resin materials have conventionally been used for glossy transparent paints.

Although the paint from 2J is glossy, it is transparent! It does not have much of a damping property, and it prevents the wood from breathing and eliminates the moisture content of the wood.

(Problems to be Solved by the Invention) Conventional glossy paints do not have XA wettability, and this is the problem to be solved.

Therefore, in the construction field, it is important to prevent dew condensation inside walls and to obtain glossy paints that do not cause problems when moisture gets into the body of the paint film. In this field, it is important to obtain a surface treatment method for processed wood with good dimensional stability.

(Means for Solving the Problems) In this invention, a composite emulsion in which colloidal glue and acrylic resin are co-emulsified is used as the main component of the binder of the paint, and the pigment volume concentration of this paint is 19 CP V
C) is 0 to 20%.

A composite emulsion made by simultaneously emulsifying colloidal glue and acrylic resin, which is the bonding of this paint, is a mixture of colloidal glue and acrylic resin in a ratio of 2:l-1100.
It is prepared by simultaneous emulsification via a monomer containing a polymerizable unsaturated double bond and an alkoxyquinonolane group in the molecule. In particular, composite emulsions polymerized at a ratio of colloidal glue strength and acrylic resin specific strength of 1.2 to 310 have good water resistance and water vapor permeability (transparent I!
11! 1lltl 几Ba in the ■ department because of its excellent
), and a coating film is formed due to its permeability.

Ma1ko,ko・) I? ! To make it into a material, if it is a clear paint, its PVC is 0%, if it is a paint with low hiding power, its PVC is 5% or less, and if it is a paint with average hiding power, its PVC is 0%. 5
% to about 20%. If the amount of PVC exceeds 20%, the gloss of the paint after drying will deteriorate, making it impossible to obtain the glossy paint that is the object of this invention.

Furthermore, other than this composite emulsion alone, other synthetic resin emulsions or colloidal glue may be used as the binder, but unless the solid content ratio is 1/3 or less, the desired effect of the present invention (gloss) may be used.

moisture permeability).

Pigment components used in this paint include titanium oxide, zinc white, aluminum carbonate, clay, talc, mica, silica powder, glass powder, white carbon, pearlite, and the like. Other film-forming agents that can be used in ordinary water-based paints include:
'y' J frozen row, = Jya1 cut-, 7. t) ,;,';
Separate wetting agent.

Dispersant, extinguished. Atsushi Hakuge's ``1j active・、'i agent increase 1 year 1: through 1" ft・force [(
1 (“Ro.

(Artwork [11) Nakamoto of this invention ↓ + 11 ', Kimono 1 〒 Old Pa ↑ Qi 1 (
By using Marunoyon, transparent,
υ property'J') Able to form a loose coating film.

(Example) Hereinafter, the second invention will be explained using Examples and Comparative Examples.

Example 1 In a composite emulsion made by co-emulsifying coloiglunorica, acrylics, and fats, Ponko 1-D V-823 (solid content 11%), an emulsion manufactured by Jinromoto Ink Chemical Industry Co., Ltd., was used. The formulation of the filtrate is as shown in Shimofuji.

Composite emulsion 100 beads r'r 1 part titanium oxide 233 parts by weight Cal/Rum carbonate 51π spout film-forming agent, antifreeze agent 5・■ turret thickener
3 parts by weight surfactant
3 parts by weight water 10
ff [Other additives 1 part by weight (PVC 15%) The surfactant includes a dispersant, a wetting agent, and an antifoaming agent.

In Example 2, the same emulsion as in Example 1 was used (
Also, it is as follows.

) (Combined emulsion 100 parts q part titanium oxide 10 rr measuring part squid
3.4i1rJi part complicating agent, depressing agent 5.It quantity part sho agent
3 parts by weight surfactant
3 jn parts blended water
5 parts by weight Other additives 1
・111 parts (PVC 8%) In Example 3, the same emulsion as in Example 1 was used,
Created clear paint. The formulation is as follows.

Composite Emaru Noyo 7 100 City Q part antifreeze,
Motivating agent 2.Surface active ~1 (antifoaming agent) 1.It +I part thickening agent
Q5・M+1+preservative~j, antifungal agent 05 balls・]:■ζExample 4 is the same emulsion and acrylic compound as Example 1;
Group 2 was prepared by using in combination with Emaru no Yono (manufactured by Nippon Ink Kagaku Kogyo, Ponhut EC-816, solid content 45%).

The paint composition is as follows.

80・n presentation f
f1 (Acrylic Emaru no Yono 18 City! Soun Oxidation Ditano 31-rti'n
Part guard cutting, film forming aid 5・n-1;”R surface part property Ml 3・n
'+k ffi! Thickening agent
3.F Okibe blended water 10
・h…1]; Other tFh III ml
l:l'i-'11n(pvc+5%
), (°j Color Example 5: 1. Spoon - Same as Color Example 1,) Emul 7
Yonto・lit! te, ko (14 pu・shi・nori power ([1
Manufactured by Sankagaku Kogyo Co., Ltd. (ko\S25.solid 925 pieces b) is l +
'i: Use it for r cutting and create paint L7 d.

The composition of the two paints is as shown in J') below.

Hiki i) Emarunoyo 7 80ju 1ro = 7 [l
Iyl Norica 32-layer 1-part titanium oxide
30 heavy soil part i: nonoto ia1. i
2: iηfi suke~1
5 ・tf m? 11 Activating agent
3 East part 1 expansion and depletion
3) I) Water mixed with 1 part of W
5 parts by weight Add to the song's t/I'll
l・n part (PVC 15%) Comparative examples include those in which the PVC of the paint was set to 25% in Comparative Example 1 and the emulsion insects in Practical Example 1 was changed to 56 parts by weight, and in Comparative Example 2, In the same manner as in Example 1 and I3 V C, a colloidal glue was added to the binder [["Sankagaku■-?
, Katsura Nso QAS 25, solid content 25%) and Atari j
Combine 1 part of A Ebisu's old Emaru Nokono (3; 1 East (-L. Higakuogyo' + [manufactured by Nauvoo 7 Lee Emulsion, + n'i 3 minutes, 15%) and solidify it to make Coroiguru 711.
I made it with Riki vs. Emarunoyono or 21.

In addition, Comparative Example 3 used Kansai Paint if's Hinideranox, which is a commercially available Emarunoyonobeinoto, Comparative Example 1 used Norikabait, manufactured by Kikusui Kagaku T Gyo Co., Ltd., which is a silicic acid paint, and Comparative Example 5 used Ureta and 15H Finger. Tested using clear paint.

Tests on these paints measure moisture permeability and gloss;
Moisture permeability was measured based on JI9 20208, using 4 mm FX flexinople temporary as a base, spray painting each Yukine on it, drying at room temperature, and measuring gloss, transparency, and U degree.

The test results are shown in Table 1 below.

As can be seen from the above table in Table 1, the coating composition of the present invention is glossy and has excellent moisture permeability.

In addition, when the accelerated weather resistance was tested for gloss and transparency other than 9 degrees, it was found that either a combination of composite emulsion and ordinary emulsion as in Example 4, or a pigment-added colorant were used. The degree of discoloration was the least.

Furthermore, we will consider using it as a wood paint. ), the clear paint of Example 3 and the urethane coating of Comparative Example 5! ! 2
! Using a piece of wood (5 x 5 x 20 cm) 1.
:+fi mounting and dimensional change due to 1!11 degrees was measured.

The measurement method was to cure the test specimen in an atmosphere of 50% R1 at 20°C until there was no dimensional change, and then heat it at 40°C for 10 minutes.
0% 1 (■) After being placed in the atmosphere of 1 for 5 hours, the dimensions were measured and the rate of change was determined. Note that 1. Vernier calipers were used to measure the dimensions.

As a result, the actual example 3 is 1%, the unpainted one is 5%,
Comparative Example 5 was 0.8%.

(Effects of the Invention) By using the paint of this invention, it is possible to obtain a finished painted surface that is free from frost damage even in cold regions. Furthermore,
The paint of the present invention can be used as a finishing paint for conventional cement-based or silicic acid-based pattern paints to maintain transparency while maintaining gloss.

Yo1: When used as a wood paint, the properties of wood...
l! , 1.4. M Tsuno
1;'s IQ ixλ has become more stable,
).

Claims (1)

[Claims] A composite emulsion in which colloidal silica and acrylic resin are co-emulsified as the main components of a binder is used as a component in a synthetic resin emulsion paint composition, and the pigment volume concentration (also referred to as PVC) of this paint is 0 to 20%. and
A paint composition characterized by moisture permeability and gloss.