US3719616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-migratory additive for emulsified phenolic resin systems said additive being a water soluble polyacrylate
Assignee: Monsanto Co
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Filing: 1971-05-13
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Granted: 1973-03-06
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Expires: 1991-05-13
Abstract
Abstract The present invention relates to an anti-migratory (as respects impregnated porous sheet members) phenol-formaldehyde resole resin in water emulsions. The emulsion is rendered anti-migratory (when impregnated into paper through the addition thereto of an anti-migratory agent selected from the group consisting of polyelectrolytes, certain salts of inorganic acids, and combinations thereof. The composition is especially useful in the impregnation of filter paper.
Inventors
- 👤 W Ingram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:55
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/48; C08J2361/00; C08J2361/34
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
190 words
In an emulsified liquid phenolic resin system of the type comprising spherules of phenolic resin dispersed in aqueous medium, at least about 80 percent of said spherules ranging in maximum dimension from about 0.01 to 0.8 microns, said type further comprising on a 100 weight percent total basis: A. a quantity of total solids ranging from about 2 weight percent up to the total weight percent of solids present after an emulsion of water in said phenolic resin inverts to an emulsion of said spherules in water through water addition, B. a quantity of organic liquid ranging from about 0.5 to 20 weight percent, and C. a quantity of water equal to the balance up to 100 weight percent thereof, said total solids comprising on a 100 weight percent total solids basis from about 88 to 99 weight percent of said phenolic resin with the balance up to 100 weight percent being a water soluble dissolved proteinaceous protective colloid in basic form, the improvements which comprise in combination, a. employing as the said phenolic resin in the said system a melamine modified phenol-formaldehyde resole resin, said resin being characterized by:
Claim 2
Dependent Claim
190 words
In an emulsified liquid phenolic resin system of the type comprising spherules of phenolic resin dispersed in aqueous medium, at least about 80 percent of said spherules ranging in maximum dimension from about 0.01 to 0.8 microns, said type further comprising on a 100 weight percent total basis: A. a quantity of total solids ranging from about 2 weight percent up to the total weight percent of solids present after an emulsion of water in said phenolic resin inverts to an emulsion of said spherules in water through water addition, B. a quantity of organic liquid ranging from about 0.5 to 20 weight percent, and C. a quantity of water equal to the balance up to 100 weight percent thereof, said total solids comprising on a 100 weight percent total solids basis from about 88 to 99 weight percent of said phenolic resin with the balance up to 100 weight percent being a water soluble dissolved proteinaceous protective colloid in basic form, the improvements which comprise in combination, a. employing as the said phenolic resin in the said system a melamine modified phenol-formaldehyde resole resin, said resin being characterized by:
Claim 3
Dependent Claim
54 words
being water soluble to the extent that it has a water dilutability of not greater than about 2:1, meaning that said resin being such that not greater than 2 volumes of water can be mixed with one volume of resin at a temperature of 24*-26*C. without causing the mixture to exhibit haziness or milkiness,
Claim 4
Dependent Claim
54 words
being water soluble to the extent that it has a water dilutability of not greater than about 2:1, meaning that said resin being such that not greater than 2 volumes of water can be mixed with one volume of resin at a temperature of 24*-26*C. without causing the mixture to exhibit haziness or milkiness,
Claim 5
Dependent Claim
13 words
having its catioNs selected from the group consisting of alkali metals and ammonium,
Claim 6
Dependent Claim
13 words
having its catioNs selected from the group consisting of alkali metals and ammonium,
Claim 7
Dependent Claim
55 words
being water soluble to the extent that it has a water dilutability of not greater than about 2:1, meaning that said resin being such that not greater than 2 volumes of water can be mixed with 1 volume of resin at a temperature of 24* -26*C. without causing the mixture to exhibit haziness or milkiness,
Claim 8
Dependent Claim
55 words
being water soluble to the extent that it has a water dilutability of not greater than about 2:1, meaning that said resin being such that not greater than 2 volumes of water can be mixed with 1 volume of resin at a temperature of 24* -26*C. without causing the mixture to exhibit haziness or milkiness,
Claim 9
Dependent Claim
14 words
having a formaldehyde to phenol combined mol ratio of from about 0.85 to 3.0,
Claim 10
Dependent Claim
14 words
having a formaldehyde to phenol combined mol ratio of from about 0.85 to 3.0,
Claim 11
Dependent Claim
33 words
The phenolic resin emulsion of claim 1 containing in addition from 0 up to about 20 weight percent (based on total solids weight) of a dissolved ammonium salt of hydrochloric or sulfuric acid.
Claim 12
Dependent Claim
10 words
having a molecular weight of from about 100,000 to 700,000,
Claim 13
Dependent Claim
10 words
having a molecular weight of from about 100,000 to 700,000,
Claim 14
Dependent Claim
14 words
having a formaldehyde to phenol combined mole ratio of from about 0.85 to 3.0,
Claim 15
Dependent Claim
14 words
having a formaldehyde to phenol combined mole ratio of from about 0.85 to 3.0,
Claim 16
Dependent Claim
19 words
having a combined melamine content of from about 2 to 25 weight percent based on 100 parts phenol, and
Claim 17
Dependent Claim
19 words
having a combined melamine content of from about 2 to 25 weight percent based on 100 parts phenol, and
Claim 18
Dependent Claim
18 words
having a pH of from about 8 to 10 when in a 13 weight percent aqueous solution, and
Claim 19
Dependent Claim
18 words
having a pH of from about 8 to 10 when in a 13 weight percent aqueous solution, and
Claim 20
Dependent Claim
15 words
The phenolic resin emulsion of claim 1 wherein the said proteinaceous protective colloid is casein.
Claim 21
Dependent Claim
19 words
having a combined melamine content of from about 2 to 25 weight percent based on 100 parts phenol, and
Claim 22
Dependent Claim
19 words
having a combined melamine content of from about 2 to 25 weight percent based on 100 parts phenol, and
Claim 23
Dependent Claim
28 words
The phenolic resin emulsion of claim 1 wherein the said polyacrylate salt contains in addition up to about 10 weight percent per molecule of units of the structure:
Claim 24
Dependent Claim
11 words
containing at least about 100 units per molecule of the structure:
Claim 25
Dependent Claim
11 words
containing at least about 100 units per molecule of the structure:
Claim 26
Dependent Claim
55 words
having a viscosity in methanol solution at 60 weight percent solids concentration of not greater than about 10,000 centipoises, and b. having dissolved in the water in the said system from about 0.04 to 20 percent by weight based on total solids weight of a water soluble polyacrylate salt, said polyacrylate salt being characterized by:
Claim 27
Dependent Claim
55 words
having a viscosity in methanol solution at 60 weight percent solids concentration of not greater than about 10,000 centipoises, and b. having dissolved in the water in the said system from about 0.04 to 20 percent by weight based on total solids weight of a water soluble polyacrylate salt, said polyacrylate salt being characterized by:
Claim 28
Dependent Claim
114 words
having a viscosity in methanol solution at 60 weight percent solids concentration of not greater than about 10,000 centipoises, the step of admixing with such system an aqueous solution in the amount of from about 0.04 to 20 percent by weight on total system solids weight of a water soluble polyacrylate salt, said polyacrylate salt being characterized by: a. having its cations selected from the group consisting of alkali metals and ammonium, b. having a molecular weight of from about 100,000 to 700,000, c. having a pH of from about 8 to 10 when in a 13 weight percent aqueous solution, and d. containing at least about 100 units per molecule of the structure:
Claim 29
Dependent Claim
114 words
having a viscosity in methanol solution at 60 weight percent solids concentration of not greater than about 10,000 centipoises, the step of admixing with such system an aqueous solution in the amount of from about 0.04 to 20 percent by weight on total system solids weight of a water soluble polyacrylate salt, said polyacrylate salt being characterized by: a. having its cations selected from the group consisting of alkali metals and ammonium, b. having a molecular weight of from about 100,000 to 700,000, c. having a pH of from about 8 to 10 when in a 13 weight percent aqueous solution, and d. containing at least about 100 units per molecule of the structure:
Claim 30
Dependent Claim
39 words
The phenolic resin emulsion of claim 1 containing in addition from 0 up to about 5 weight percent (based on total weight of said phenolic resin) of a surfactant selected from the group consisting of anionic and nonionic surfactants.
Claim 31
Dependent Claim
180 words
In a method for making an emulsified liquid phenolic resin system anti-migratory wherein such system is of the type comprising spherules of melamine modified phenolic resin dispersed in aqueous medium, at least about 80 weight percent of said spherules ranging in maximum dimension from about 0.01 to 0.8 microns, said type further comprising on a 100 weight percent total basis: A. a quantity of total solids ranging from about 2 weight percent up to the total weight percent of solids present after an emulsion of water in said phenolic resin inverts to an emulsion of said spherules in water through water addition, B. a quantity of organic liquid ranging from about 0.5 to 20 weight percent, and C. a quantity of water equal to the balance up to 100 weight percent thereof, said total solids comprising on a 100 weight percent total solids basis from about 88 to 99 weight percent of said phenolic resin with the balance up to 100 weight percent being a water soluble, dissolved proteinaceous protective colloid in basic form, said phenolic resin being characterized by:
Claim 32
Dependent Claim
180 words
In a method for making an emulsified liquid phenolic resin system anti-migratory wherein such system is of the type comprising spherules of melamine modified phenolic resin dispersed in aqueous medium, at least about 80 weight percent of said spherules ranging in maximum dimension from about 0.01 to 0.8 microns, said type further comprising on a 100 weight percent total basis: A. a quantity of total solids ranging from about 2 weight percent up to the total weight percent of solids present after an emulsion of water in said phenolic resin inverts to an emulsion of said spherules in water through water addition, B. a quantity of organic liquid ranging from about 0.5 to 20 weight percent, and C. a quantity of water equal to the balance up to 100 weight percent thereof, said total solids comprising on a 100 weight percent total solids basis from about 88 to 99 weight percent of said phenolic resin with the balance up to 100 weight percent being a water soluble, dissolved proteinaceous protective colloid in basic form, said phenolic resin being characterized by:
Claim 33
Dependent Claim
28 words
The method of claim 6 wherein said emulsion system additionally contains from 0.4 to about 20 weight percent of a dissolved ammonium salt of a strong inorganic acid.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |