Patent US4048125A successfully refreshed from Google Patents.
US4048125A
Expired / Lapsed
US
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Anti-migratory additive for emulsified phenolic resin systems containing a proteinaceous colloid
Assignee: Monsanto Co
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Filing: 1975-12-01
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Granted: 1977-09-13
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Expires: 1995-12-01
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
- 👤 II Woodrow Hayes Ingram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:53
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C09; C09J; C09J161/00; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/48; C08J2361/00; C08J2361/34; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31768; Y10T428/31772; Y10T428/31775; Y10T428/31942; Y10T428/31949; Y10T428/31964
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
275 words
An emulsified liquid phenolic resin system containing spherules of phenolic resin dispersed in aqueous medium, at least about 80 percent of the spherules ranging in size from about 0.01 to 0.8 microns, and comprising: A. a quantity of solids ranging from about 5 to 45 parts by weight, comprising the phenolic resin, a water soluble dissolved proteinaceous protective colloid in basic form, and a water soluble dissolved polyacrylate salt, B. a quantity of organic liquid ranging from about 0 to 20 parts by weight, and C. a quantity of water ranging from 35 to 95 parts by weight; wherein: a. the phenolic resin is characterized by: 1. having a water dilutability of from 15 percent to 2000 percent based on the resin solids, 2. having a formaldehyde to phenol combined mole ratio of from about 0.85 to 3.0, and 3. having a viscosity in methanol solution at 60 weight percent solids concentration of not greater than about 10,000 centipoises; b. the polyacrylate salt is characterized by: 1. having its cations selected from the group consisting of alkali metals and ammonium, 2. having a molecular weight of from about 100,000 to 700,000, 3. having a pH of from about 8 to 10 when in a 13 weight percent aqueous solution, and 4. containing at least about 100 units per molecule of the structure: ##STR3## c. the ratio of phenolic resin to proteinaceous colloid is in the range of 99:1 and 88:12, the ratio of phenolic resin to polyacrylate salt is in the range of 98.6:0.4 and 70.4:20, and the solids comprise between 0.04 and 20 parts by weight of polyacrylate salt per 100 parts of solids.
Claim 2
Dependent Claim
275 words
An emulsified liquid phenolic resin system containing spherules of phenolic resin dispersed in aqueous medium, at least about 80 percent of the spherules ranging in size from about 0.01 to 0.8 microns, and comprising: A. a quantity of solids ranging from about 5 to 45 parts by weight, comprising the phenolic resin, a water soluble dissolved proteinaceous protective colloid in basic form, and a water soluble dissolved polyacrylate salt, B. a quantity of organic liquid ranging from about 0 to 20 parts by weight, and C. a quantity of water ranging from 35 to 95 parts by weight; wherein: a. the phenolic resin is characterized by: 1. having a water dilutability of from 15 percent to 2000 percent based on the resin solids, 2. having a formaldehyde to phenol combined mole ratio of from about 0.85 to 3.0, and 3. having a viscosity in methanol solution at 60 weight percent solids concentration of not greater than about 10,000 centipoises; b. the polyacrylate salt is characterized by: 1. having its cations selected from the group consisting of alkali metals and ammonium, 2. having a molecular weight of from about 100,000 to 700,000, 3. having a pH of from about 8 to 10 when in a 13 weight percent aqueous solution, and 4. containing at least about 100 units per molecule of the structure: ##STR3## c. the ratio of phenolic resin to proteinaceous colloid is in the range of 99:1 and 88:12, the ratio of phenolic resin to polyacrylate salt is in the range of 98.6:0.4 and 70.4:20, and the solids comprise between 0.04 and 20 parts by weight of polyacrylate salt per 100 parts of solids.
Claim 3
Dependent Claim
34 words
The phenolic resin emulsion of claim 1 in addition from 0 to 30 parts by weight of a dissolved ammonium salt of hydrochloric or sulfuric acid per 100 parts by weight of the solids.
Claim 4
Dependent Claim
14 words
The phenolic resin emulsion of claim 1 wherein the proteinaceous protective colloid is casein.
Claim 5
Dependent Claim
28 words
The phenolic resin emulsion of claim 1 wherein the polyacrylate salt contains in addition up to about 10 weight percent per molecule of units of the structure: ##STR4##
Claim 6
Dependent Claim
39 words
The phenolic resin emulsion of claim 11 containing in addition from 0 to 5 parts by weight of a surfactant selected from the group consisting of anionic and nonionic surfactants per 100 parts by weight of the phenolic resin.
Claim 7
Independent Claim
268 words
A method for making an emulsified liquid phenolic resin system anti-migratory wherein such system contains spherules of phenolic resin dispersed in aqueous medium at least about 80 weight percent of the spherules ranging in maximum dimension from about 0.01 to 0.8 microns, and further contains: A. a quantity of solids ranging from about 5 to 45 parts by weight, comprising the phenolic resin and a water soluble dissolved protenaceous protective colloid in basic form, in the weight ratio in the range of 99:1 and 88:12; B. a quantity of organic liquid ranging from about 0 to 20 parts by weight, and C. a quantity of water ranging from 35 to 95 parts by weight; wherein the phenolic resin is characterized by: 1. having a water dilutability of from 15 percent to 2000 percent based on the resin solids, 2. having a formaldehyde to phenol combined mole ratio of from about 0.85 to 3.0, and 3. having a viscosity in methanol solution at 60 weight percent solids concentration of not greater than about 10,000 centipoises; which comprises admixing with such system an aqueous solution of a water soluble polyacrylate salt containing from about 0.04 to 20 parts by weight of the salt per 100 parts of solids of the combined liquid phenolic resin system and the aqueous solution, wherein the polyacrylate salt is characterized by: 1. having its cations selected from the group consisting of alkali metals and ammonium; 2. having a molecular weight of from about 100,000 to 700,000, 3. having a pH of from about 8 to 10 when in a 13 weight percent aqueous solution, and
Claim 8
Independent Claim
268 words
A method for making an emulsified liquid phenolic resin system anti-migratory wherein such system contains spherules of phenolic resin dispersed in aqueous medium at least about 80 weight percent of the spherules ranging in maximum dimension from about 0.01 to 0.8 microns, and further contains: A. a quantity of solids ranging from about 5 to 45 parts by weight, comprising the phenolic resin and a water soluble dissolved protenaceous protective colloid in basic form, in the weight ratio in the range of 99:1 and 88:12; B. a quantity of organic liquid ranging from about 0 to 20 parts by weight, and C. a quantity of water ranging from 35 to 95 parts by weight; wherein the phenolic resin is characterized by: 1. having a water dilutability of from 15 percent to 2000 percent based on the resin solids, 2. having a formaldehyde to phenol combined mole ratio of from about 0.85 to 3.0, and 3. having a viscosity in methanol solution at 60 weight percent solids concentration of not greater than about 10,000 centipoises; which comprises admixing with such system an aqueous solution of a water soluble polyacrylate salt containing from about 0.04 to 20 parts by weight of the salt per 100 parts of solids of the combined liquid phenolic resin system and the aqueous solution, wherein the polyacrylate salt is characterized by: 1. having its cations selected from the group consisting of alkali metals and ammonium; 2. having a molecular weight of from about 100,000 to 700,000, 3. having a pH of from about 8 to 10 when in a 13 weight percent aqueous solution, and
Claim 9
Dependent Claim
12 words
containing at least about 100 units per molecule of the structure: ##STR5##
Claim 10
Dependent Claim
12 words
containing at least about 100 units per molecule of the structure: ##STR5##
Claim 11
Dependent Claim
34 words
The method of claim 6 wherein the emulsified system additionally contains from 0 to about 30 parts by weight of a dissolved ammonium salt of a strong inorganic acid per 100 parts of solids.
Claim 12
Dependent Claim
26 words
The method of claim 6 wherein the polyacrylate salt contains in addition up to about 10 weight percent per molecule of units of the structure: ##STR6##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |