Sol/gel polymer surface coatings and tannin block enhancement
AssigneeUnion Oil Company of California
InventorCharles L. Kissel
Life of this patent
Estimating the term…
Abstract
Tannin block properties in surface coating compositions are increased by admixing a sol or gel containing one or more salts with a polymer and a surface coating paste stock. A novel surface coating composition containing a polymer and salt homogeneously distributed in the composition is prepared from the sol or gel and has increased tannin block properties compared to a composition without the admixed sol or gel.
Claims102
A surface coating composition comprising a latex of a polymer and at least one salt, said salt derived from a salt-containing sol or gel composition comprising cations, anions and colloidal salt particulates and said salt in sufficient concentration to enhance the tannin blocking property of the coating composition.
A surface coating composition comprising:
- (1) a product admixture composition comprising (a) a sol or gel composition containing anions, cations and colloidal salt particulates of a salt and having a pH less than about 4.0 and (b) a latex of a polymer, said salt in sufficient amount to enhance the tannin block property of said surface coating composition as compared to the same surface coating composition which does not contain said sol or gel composition, and
- (2) a surface coating paste stock containing one or more components selected from the group consisting of a pigment, an extender pigment, a coalescing aid, a thickening aid, a dispersing aid, a protective colloid, a defoamer, a biocide, an amine solubilizer, a flow additive, a drier, a cosolvent and a filler material.
A paint composition comprising:
- a paint paste stock containing one or more components selected from the group consisting of a pigment, an extender pigment, a coalescing aid, a thickening aid, a dispersing aid, a protective colloid, a defoamer, a biocide, an amine solubilizer, a flow additive, a drier, a cosolvent and a filler material, a latex of a polymer, and a tannin block-enhancing amount of a salt comprising anions, cations and colloidal salt particulates homogeneously distributed in said composition.
A paint composition comprising:
- a latex of a polymer a coalescing aid, a thickening aid, a defoamer, a biocide, a filler, and a tannin block-enhancing amount of a salt comprising anions, cations and colloidal salt particulates homogeneously distributed in said composition.
A precursor composition useful for preparing a product surface coating composition, said precursor composition comprising:
- (1) a latex of a polymer, (2) a surface coating paste stock, and (3) a sol or gel composition containing a tannin block-enhancing amount of salt, said sol or gel further comprising anions, cations and colloidal salt particulates, an organic solvent and a stabilizer and having a pH less than about 4.0.
A method for increasing the tannin block property of a product surface coating composition, said method comprising the step of admixing a sol or gel composition containing a tannin block-enhancing concentration of a salt in the form of anions, cations and colloidal salt particulates with a composition containing a polymer to produce a product surface coating composition or a surface coating precursor composition, said product surface coating composition or a product surface coating composition derived from said surface coating precursor composition both having a tannin block property which is greater than that of the same product surface coating composition prepared without said salt from said sol or gel composition.
A method for enhancing the tannin block property of a product paint composition, said method comprising the step of admixing a sol or gel composition containing a salt in the form of anions, cations and colloidal salt particulates with a paint composition or a paint precursor composition to produce a product paint composition, said paint composition, product paint composition or paint precursor composition each containing a polymer, and wherein sufficient salt is contained in said sol or gel composition to increase the tannin block property of said product paint composition as compared to said product paint composition not containing said sol or gel composition.
A method for enhancing the tannin block property of a surface coating composition, said method comprising the following steps:
- (a) admixing a sol or gel composition having a pH less than 4.0 and containing a salt in the form of anions, cations and colloidal salt particulates with a composition containing a latex of a polymer to produce a product admixture composition containing said salt and said polymer, said salt in sufficient amount to increase the tannin block property of the surface coating composition obtained in step (b);
- and
- (b) blending said product admixture composition with a surface coating paste stock containing one or more components selected from the group consisting of a pigment, an extender pigment, a coalescing aid, a thickening aid, a dispersing aid, a protective colloid, a defoamer, a biocide, an amine solubilizer, a flow additive, a drier, a cosolvent and a filler material to produce a surface coating composition having a tannin block property which is greater than substantially the same surface coating composition but not containing said sol or gel composition.
A surface coating composition prepared by the method comprising the steps of:
- (1) admixing a composition containing a latex of a polymer with a surface coating paste stock containing one or more components selected from the group consisting of a pigment, an extender pigment, a coalescing aid, a thickening aid, a dispersing aid, a protective colloid, a defoamer, a biocide, an amine solubilizer, a flow additive, a drier, a cosolvent and a filler material, and
- (2) admixing a sol or gel composition containing a salt in the form of anions, cations and colloidal salt particulates with the admixture composition obtained from step (1) to produce a surface coating composition containing salt in a sufficient amount to enhance the tannin blocking property of said surface coating composition.
A surface coating composition prepared by the method comprising the steps of:
- (1) admixing a surface coating paste stock containing one or more components selected from the group consisting of a pigment, an extender pigment, a coalescing aid, a thickening aid, a dispersing aid, a protective colloid, a defoamer, a biocide, an amine solubilizer, a flow additive, a drier, a cosolvent and a filler material with a sol or gel composition containing a salt in the form of anions, cations and colloidal salt particulates, said salt in sufficient amount to block tannin effects on a wood-containing substrate when coated on said substrate and
- (2) admixing a composition containing a polymer with an admixture composition contained from step (1) to produce a surface coating composition having enhanced tannin block properties compared to the same surface coating composition which does not contain said sol or gel composition.
A surface coating composition comprising:
- a surface coating paste stock containing one or more components selected from the group consisting of a pigment, an extender pigment, a coalescing aid, a thickening aid, a dispersing aid, a protective colloid, a defoamer, a biocide, an amine solubilizer, a flow additive, a drier, a cosolvent and a filler material, a latex of a polymer, a sol or gel composition comprising (1) a stabilizer comprising a chelator or a nonionic surfactant, (2) a nonaqueous solvent comprising an ether, ester, alcohol or combination thereof, (3) at least one salt comprising anions, cations or colloidal particulates, said salt in sufficient amount to enhance the tannin block property of said composition when coated on a wood-containing substrate, and water.
Dependencies are inferred from the claim text.