CA1266542A - Acrylic binder for alcohol based coatings - Google Patents
Acrylic binder for alcohol based coatingsInfo
- Publication number
- CA1266542A CA1266542A CA000464616A CA464616A CA1266542A CA 1266542 A CA1266542 A CA 1266542A CA 000464616 A CA000464616 A CA 000464616A CA 464616 A CA464616 A CA 464616A CA 1266542 A CA1266542 A CA 1266542A
- Authority
- CA
- Canada
- Prior art keywords
- alcohol
- blend
- acrylic
- acrylic emulsion
- butyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
Abstract
ABSTRACT OF THE DISCLOSURE
A binder composition and a process of making same.
The binder is a clear hydroxilic bonding resin solution which is the reaction product of an acrylic emulsion with a suitable alcohol. The resin solution produced according to the present invention can be applied to a wide variety of substrates in adverse conditions including below-freezing temperatures, high relative humidity and moist or even, in some cases, wet substrates. The solutions provide good penetration when applied to porous substrates such as wood, concrete, brick and masonry to prevent or minimize penetration of water.
A binder composition and a process of making same.
The binder is a clear hydroxilic bonding resin solution which is the reaction product of an acrylic emulsion with a suitable alcohol. The resin solution produced according to the present invention can be applied to a wide variety of substrates in adverse conditions including below-freezing temperatures, high relative humidity and moist or even, in some cases, wet substrates. The solutions provide good penetration when applied to porous substrates such as wood, concrete, brick and masonry to prevent or minimize penetration of water.
Description
~266~4~
BACKGROUND OF THE INVENTION
The present invention relates to acrylic binders, and more particularly to acrylic emulsions having a wide variety of applications in coating of substrates, and the method of producing same.
Acrylic emulsions used as binders have previously been widely investigated and used. Such emulsions have conventionally been used in the form of water-based emulsions for example as latex paints), or sycupy solutions of acrylic solids in aromatic solvents. All such acrylic emulsions are inherently subject to manifestations of instability common to all colloidal systems. As well, all are very sensitive to freezing, excessive shear and also to bacterial attack. When used as coatings, acrylic emulsions have restricting limitations when it comes to-l. choice of substrate
BACKGROUND OF THE INVENTION
The present invention relates to acrylic binders, and more particularly to acrylic emulsions having a wide variety of applications in coating of substrates, and the method of producing same.
Acrylic emulsions used as binders have previously been widely investigated and used. Such emulsions have conventionally been used in the form of water-based emulsions for example as latex paints), or sycupy solutions of acrylic solids in aromatic solvents. All such acrylic emulsions are inherently subject to manifestations of instability common to all colloidal systems. As well, all are very sensitive to freezing, excessive shear and also to bacterial attack. When used as coatings, acrylic emulsions have restricting limitations when it comes to-l. choice of substrate
2. condition of substrate
3. high humidity environment
4. freezing temperatures In conventional acrylic binder systems, powders, beads, granules, flakes or even solid blocks of the acrylic composition are either dissolved or compounded in wa~er or aromatic solvents, with or without heat, to produce the desired resin solution or suspension.
12 Ei~ 2 It i6 an object of the present invention to erovide a series of ac~ylic emulsion solutions which are easily compounded and can ~e adapted to a wide variety of end uses as coatings. It is a further object of the present invention to erovide acrylic resin solutions that are unaffected by extreme temeerature changes and remain clear and stable over long periods of time. It is a further object of the present invention to p~oduce resin binder solutions that are immune to bacterial attack, thus providing for longer shelf life than conventional acrylic binder solutions.
SUMMARY OF THE INVENTION
In accordance with the present invention there is provided an hydroxilic bonding resin which is the reaction product between any one or a blend of two or more acrylic emulsions and any one or a blend of two or more primary or secondaLy alcohols. The alcohol or blend thereof is specific to dissolve the selected acrylic emulsion.
The alcohol or blend thereof is ereferably selected from the group consisting of ethyl, n-butyl, 2-butyl, n-eropyl, iso-eropyl, and diacetone (acetone free).
It is preferred that the reactants be present in the following eercentages by weight: .1% to 50% - acrylic emulsion, 99.9~ to 45% - alcohol, and 0% to 5% - diacetone alcohol (acetone free).
12~6S42 The present invention further provides for the process of making an hydroxilic bonding resin solution which comprises mixing any one or a blend of two or more acrylic emulsions and any one or a blend of two or more primary or secondary 5alcohols. The alcohol or blend thereof is specific to dissolving the selected acrylic emulsion.
DETAILED DESCRIPTION OF THE INVENTION
The present invention eroduces an acrylic resin solution, preferably clear, which may be used as a binder in 10alcohol-based systems and which is applicable to a wide variety of substrates. The process of producing the solution according to the ~resent invention, contrary to conventional systems in which solids are dissolved into the desired resin solution or suspension, requires the simele mixing of two or more liquids.
15Many of the previously-noted shortcomings of conventional acrylic emulsions are eliminated with the emulsions of the present invention. The hydroxilic bonding resin solutions which are the product of the present invention are unaffected by extreme temperature changes and remain clear 20and stable. They are immune to bacterial attack because of the alcohol present in the system, thus providing for improved shelf life.
Binder solutions may be prepared according to the present invention which, when mixed with milled fiberglass and .
. ~ .
`
.
.. ..
~ZG654Z
applied to a substrate with fiberglass scrim, will resist water pressures in excess of 50 ~si. Such mixtures are earticularly well-suited foL application as coatings to swimming pools and basement walls, where they would be subjected to high water eressures~
Because of the hydroxilic bonding nature of the resin solutions produced according to the eresent invention, the solutions can be cross-linked with silicone, either before or after the reaction with the alcohol. The end product is one which has an extremely high LesistanCe to salt spray, acid, chalking and the like. Such end product is paLticularly well-suited as a concrete coating.
The acrylic ~esin solutions according to the present invention provide a wide variety of coatings suitable for application to wood, concrete, brick, masonry in general, aluminum, plaster board, stucco, asphalt and its derivatives, canvas, fabeics (either natural or synthetic), leather of all kinds, plastics. Their application may be carried out under noemal or extremely adverse conditions, such as below~freezing temperatures, high relative humidity, moist o~ even in some cases wet substrates.
The acrylic emulsions to be used in accordance with the present invention are any one, or a blend of two or more, of commercially available acrylic emulsions. The acrylic emulsion may for example be RHOPLEX E - 330 (Trade Mark~, a :,, ~.266~;4Z
cement mortar modifier manufactured by ~ohm & Hass Co. of Philadelphia, Penn. containing methyl and butyl acrylates~
Acrylic resin solutions in accordance with the present invention, having very low concentrations of resin solids, can be injected into the soil with or without the addition of an alkoxide, to form an impervious layer. When this layer comes in contact with water, it gels to a semi-solid mass that is waterproof.
Acrylic resin solutions in accordance with the present invention, whe~ mixed with a small amount of alkoxide, turn into T~/~t~6, soft or firm gels. These gels are shear ~itY~ and can be used in the manufacture of waterproof coatings especially suited for porous substrates where one single coat will prevent penetration of water without affecting the breathing ability of the substrate, i.e. concrete blocks.
The solutions in accordance with the present invention produce a variety of alcohol/acrylic coatings suitable for application to wood, concrete, brick, masonry in general, aluminum, plasterboard, stucco, asphalt and its derivatives, canvas, fabrics either natural or synthetic, leather of all kinds, and plastics.
They may be applied under normal as well as very adverse conditions such as below-freezing temperatures, high relative humidity, and onto moist or even, in some cases, wet substrates.
Thus it is apparent that there have been provided in accordance with the invention, acrylic emulsion compositions and methods of makin~ same that fully satisfy the objects, aims and advantages set forth above. While the invention has been desc~ibed i.n conjunction with specific embodiments thereof, it is evident that many alternatives, modifications and variations will be ap~a~ent to those skilled in the art in light of the foregoing description. ~ccordingly, it is intended to embrace all such alte~natives, modifications and vari.ations as fall within the spirit and broad scope of the invention.
12 Ei~ 2 It i6 an object of the present invention to erovide a series of ac~ylic emulsion solutions which are easily compounded and can ~e adapted to a wide variety of end uses as coatings. It is a further object of the present invention to erovide acrylic resin solutions that are unaffected by extreme temeerature changes and remain clear and stable over long periods of time. It is a further object of the present invention to p~oduce resin binder solutions that are immune to bacterial attack, thus providing for longer shelf life than conventional acrylic binder solutions.
SUMMARY OF THE INVENTION
In accordance with the present invention there is provided an hydroxilic bonding resin which is the reaction product between any one or a blend of two or more acrylic emulsions and any one or a blend of two or more primary or secondaLy alcohols. The alcohol or blend thereof is specific to dissolve the selected acrylic emulsion.
The alcohol or blend thereof is ereferably selected from the group consisting of ethyl, n-butyl, 2-butyl, n-eropyl, iso-eropyl, and diacetone (acetone free).
It is preferred that the reactants be present in the following eercentages by weight: .1% to 50% - acrylic emulsion, 99.9~ to 45% - alcohol, and 0% to 5% - diacetone alcohol (acetone free).
12~6S42 The present invention further provides for the process of making an hydroxilic bonding resin solution which comprises mixing any one or a blend of two or more acrylic emulsions and any one or a blend of two or more primary or secondary 5alcohols. The alcohol or blend thereof is specific to dissolving the selected acrylic emulsion.
DETAILED DESCRIPTION OF THE INVENTION
The present invention eroduces an acrylic resin solution, preferably clear, which may be used as a binder in 10alcohol-based systems and which is applicable to a wide variety of substrates. The process of producing the solution according to the ~resent invention, contrary to conventional systems in which solids are dissolved into the desired resin solution or suspension, requires the simele mixing of two or more liquids.
15Many of the previously-noted shortcomings of conventional acrylic emulsions are eliminated with the emulsions of the present invention. The hydroxilic bonding resin solutions which are the product of the present invention are unaffected by extreme temperature changes and remain clear 20and stable. They are immune to bacterial attack because of the alcohol present in the system, thus providing for improved shelf life.
Binder solutions may be prepared according to the present invention which, when mixed with milled fiberglass and .
. ~ .
`
.
.. ..
~ZG654Z
applied to a substrate with fiberglass scrim, will resist water pressures in excess of 50 ~si. Such mixtures are earticularly well-suited foL application as coatings to swimming pools and basement walls, where they would be subjected to high water eressures~
Because of the hydroxilic bonding nature of the resin solutions produced according to the eresent invention, the solutions can be cross-linked with silicone, either before or after the reaction with the alcohol. The end product is one which has an extremely high LesistanCe to salt spray, acid, chalking and the like. Such end product is paLticularly well-suited as a concrete coating.
The acrylic ~esin solutions according to the present invention provide a wide variety of coatings suitable for application to wood, concrete, brick, masonry in general, aluminum, plaster board, stucco, asphalt and its derivatives, canvas, fabeics (either natural or synthetic), leather of all kinds, plastics. Their application may be carried out under noemal or extremely adverse conditions, such as below~freezing temperatures, high relative humidity, moist o~ even in some cases wet substrates.
The acrylic emulsions to be used in accordance with the present invention are any one, or a blend of two or more, of commercially available acrylic emulsions. The acrylic emulsion may for example be RHOPLEX E - 330 (Trade Mark~, a :,, ~.266~;4Z
cement mortar modifier manufactured by ~ohm & Hass Co. of Philadelphia, Penn. containing methyl and butyl acrylates~
Acrylic resin solutions in accordance with the present invention, having very low concentrations of resin solids, can be injected into the soil with or without the addition of an alkoxide, to form an impervious layer. When this layer comes in contact with water, it gels to a semi-solid mass that is waterproof.
Acrylic resin solutions in accordance with the present invention, whe~ mixed with a small amount of alkoxide, turn into T~/~t~6, soft or firm gels. These gels are shear ~itY~ and can be used in the manufacture of waterproof coatings especially suited for porous substrates where one single coat will prevent penetration of water without affecting the breathing ability of the substrate, i.e. concrete blocks.
The solutions in accordance with the present invention produce a variety of alcohol/acrylic coatings suitable for application to wood, concrete, brick, masonry in general, aluminum, plasterboard, stucco, asphalt and its derivatives, canvas, fabrics either natural or synthetic, leather of all kinds, and plastics.
They may be applied under normal as well as very adverse conditions such as below-freezing temperatures, high relative humidity, and onto moist or even, in some cases, wet substrates.
Thus it is apparent that there have been provided in accordance with the invention, acrylic emulsion compositions and methods of makin~ same that fully satisfy the objects, aims and advantages set forth above. While the invention has been desc~ibed i.n conjunction with specific embodiments thereof, it is evident that many alternatives, modifications and variations will be ap~a~ent to those skilled in the art in light of the foregoing description. ~ccordingly, it is intended to embrace all such alte~natives, modifications and vari.ations as fall within the spirit and broad scope of the invention.
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A hydroxylic bonding resin solution being the reaction product between any one or a blend of two or more acrylic emulsions and any one or a blend of two or more primary or secondary alcohols, which alcohol or blend thereof is specific to dissolve the selected acrylic emulsion.
2. A solution according to claim 1 wherein the alcohol or blend thereof is selected from the group consisting of: ethyl, n-butyl, 2-butyl, n-propyl, iso-propyl, and diacetone (A.F.).
3. A solution according to claim 2 wherein the reaction product solution is clear.
4. A solution according to claim 3 wherein the reactants are present in the following percentages by weight:
.1% to 50% - acrylic emulsion 99.9% to 45% - alcohol 0% to 5% - diacetone alcohol (A.F.).
.1% to 50% - acrylic emulsion 99.9% to 45% - alcohol 0% to 5% - diacetone alcohol (A.F.).
5. A solution according to claim 2 wherein the reactants are present in the following percentages by weight:
.1% to 50% - acrylic emulsion 99.9% to 45% - alcohol 0% to 5% - diacetone alcohol (A.F.).
.1% to 50% - acrylic emulsion 99.9% to 45% - alcohol 0% to 5% - diacetone alcohol (A.F.).
6. A solution according to claim 5 which is the reaction product between iso-propyl alcohol (99.6% anhydrous), Rhoplex E-330 (Trade Mark of Rohm & Hass Co., U.S.A.) acrylic emulsion, water and diacetone alcohol (A.F.).
7. A method of making a clear hydroxylic bonding resin solution by mixing any one or a blend of two or more acrylic emulsions and any one or a blend of two or more primary or secondary alcohols, which alcohol or blend thereof is specific to dissolving the selected acrylic emulsion.
8. A method according to claim 7 wherein the alcohol or blend thereof is selected from the group consisting of: ethyl, n-butyl, 2-butyl, n-propyl, iso-propyl, and diacetone (A.F.).
9. A solution according to claim 1, 4 or 5 wherein the acrylic emulsion comprises methyl and butyl acrylates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000464616A CA1266542A (en) | 1984-10-03 | 1984-10-03 | Acrylic binder for alcohol based coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000464616A CA1266542A (en) | 1984-10-03 | 1984-10-03 | Acrylic binder for alcohol based coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1266542A true CA1266542A (en) | 1990-03-06 |
Family
ID=4128829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000464616A Expired - Fee Related CA1266542A (en) | 1984-10-03 | 1984-10-03 | Acrylic binder for alcohol based coatings |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1266542A (en) |
-
1984
- 1984-10-03 CA CA000464616A patent/CA1266542A/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |