Patent US4374939A successfully refreshed from Google Patents.
US4374939A
Expired / Lapsed
US
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Mold wash composition
Assignee: Baroid Technology Inc
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Filing: 1979-12-31
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Granted: 1983-02-22
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Expires: 1999-12-31
Abstract
Abstract A composition for preparing water based mold washes which contains a clay of high swelling capacity in water, certain water soluble acrylic polymers, a particulate, refractory material and a solids suspension control agent comprised of a peptizer and a flocculant.
Inventors
- 👤 James Van Fisk, Jr.
- 👤 John W. Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:39
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C08; C08L; C08L33/00; C08L33/02; C11D3/02; C11D3/04; C11D3/10; C11D3/12; C11D3/122; C11D3/124; C11D3/1246; C11D3/1253; C11D3/126
Claims Analysis
Total Claims: 50
Claim 1
Independent Claim
98 words
A composition for use in a mold wash formulation comprising an intimate, dry mixture of a water soluble polymer of a monoolefinic carboxylic acid monomer having the general formula: ##STR5## wherein R is selected from the class consisting of hydrogen, monovalent alkyl radicals, monovalent aryl radicals, monovalent aralkyl radicals, monovalent alkaryl radicals and monovalent cycloaliphatic radicals, a clay having a liquid limit number of greater than 600 with high swelling capacity in water, and a solids suspension control additive comprising (a) a flocculant comprising a water soluble salt of a polyvalent metal ion, and (b) a peptizing agent.
Claim 2
Dependent Claim
98 words
A composition for use in a mold wash formulation comprising an intimate, dry mixture of a water soluble polymer of a monoolefinic carboxylic acid monomer having the general formula: ##STR5## wherein R is selected from the class consisting of hydrogen, monovalent alkyl radicals, monovalent aryl radicals, monovalent aralkyl radicals, monovalent alkaryl radicals and monovalent cycloaliphatic radicals, a clay having a liquid limit number of greater than 600 with high swelling capacity in water, and a solids suspension control additive comprising (a) a flocculant comprising a water soluble salt of a polyvalent metal ion, and (b) a peptizing agent.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein said carboxylic acid monomer is selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof.
Claim 4
Dependent Claim
13 words
The composition of claim 2 wherein said polymer includes a non-carboxylated polymerizable monomer.
Claim 5
Dependent Claim
41 words
The composition of claim 3 wherein said non-carboxylated monomer is present in an amount of from about 30 to 80% by weight and said carboxylic acid monomer is present in an amount of from about 20 to about 70% by weight.
Claim 6
Dependent Claim
47 words
The composition of claim 3 wherein said non-carboxylated polymerizable monomer comprises a compound having the general formula: ##STR6## wherein R 1 is a member of the class consisting of alkyl groups having from 1 to 30 carbon atoms and R 2 is hydrogen or a methyl group.
Claim 7
Dependent Claim
26 words
The composition of claim 5 wherein said non-carboxylated polymerizable monomer is selected from the class consisting of methyl acrylate, ethyl acrylate, methyl methacrylate and mixtures thereof.
Claim 8
Dependent Claim
11 words
The composition of claim 1 wherein said clay comprises a bentonite.
Claim 9
Dependent Claim
22 words
The composition of claim 1 wherein said clay is present in an amount of from about 80 to about 95% by weight.
Claim 10
Dependent Claim
22 words
The composition of claim 1 wherein said polymer is present in an amount of from about 0.5 to about 10% by weight.
Claim 11
Dependent Claim
20 words
The composition of claim 1 wherein said flocculant is present in an amount of up to about 10% by weight.
Claim 12
Dependent Claim
11 words
The composition of claim 1 wherein said flocculant comprises aluminum sulfate.
Claim 13
Dependent Claim
21 words
The composition of claim 1 wherein said peptizing agent is present in an amount of up to about 9% by weight.
Claim 14
Dependent Claim
14 words
The composition of claim 1 wherein said peptizing agent comprises an alkali metal carbonate.
Claim 15
Dependent Claim
12 words
The composition of claim 13 wherein said peptizing agent comprises sodium carbonate.
Claim 16
Dependent Claim
102 words
A formulation for use in preparing a mold wash comprising an intimate, dry mixture of a water soluble polymer of a monoolefinic carboxylic acid monomer having the general formula: ##STR7## wherein R is selected from the class consisting of hydrogen, monovalent alkyl radicals, monovalent aryl radicals, monovlent aralkyl radicals, monovalent alkaryl radicals and monovalent cycloaliphatic radicals, a clay having a liquid limit number of greater than 600 with high swelling capacity in water, a solids suspension control additive comprising (a) a flocculant comprising a water soluble salt of a polyvalent metal ion, and (b) a peptizing agent, and a particulate refractory material.
Claim 17
Dependent Claim
102 words
A formulation for use in preparing a mold wash comprising an intimate, dry mixture of a water soluble polymer of a monoolefinic carboxylic acid monomer having the general formula: ##STR7## wherein R is selected from the class consisting of hydrogen, monovalent alkyl radicals, monovalent aryl radicals, monovlent aralkyl radicals, monovalent alkaryl radicals and monovalent cycloaliphatic radicals, a clay having a liquid limit number of greater than 600 with high swelling capacity in water, a solids suspension control additive comprising (a) a flocculant comprising a water soluble salt of a polyvalent metal ion, and (b) a peptizing agent, and a particulate refractory material.
Claim 18
Dependent Claim
24 words
The formulation of claim 15 wherein said carboxylic acid monomer is selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof.
Claim 19
Dependent Claim
13 words
The formulation of claim 16 wherein said polymer includes a non-carboxylated polymerizable monomer.
Claim 20
Dependent Claim
45 words
The formulation of claim 17 wherein said non-carboxylated monomer is present in said polymer in an amount of from about 30 to about 80% by weight and said carboxylic acid monomer is present in an amount of from about 20 to about 70% by weight.
Claim 21
Dependent Claim
47 words
The formulation of claim 17 wherein said non-carboxylated polymerizable monomer comprises a compound having the general formula: ##STR8## wherein R 1 is a member of the class consisting of alkyl groups having from 1 to 30 carbon atoms and R 2 is hydrogen or a methyl group.
Claim 22
Dependent Claim
26 words
The formulation of claim 19 wherein said non-carboxylated polymerizable monomer is selected from the class consisting of methyl acrylate, ethyl acrylate, methyl methacrylate and mixtures thereof.
Claim 23
Dependent Claim
11 words
The formulation of claim 15 wherein said clay comprises a bentonite.
Claim 24
Dependent Claim
22 words
The formulation of claim 15 wherein said clay is present in an amount of from about 0.5 to about 10% by weight.
Claim 25
Dependent Claim
20 words
The formulation of claim 15 wherein said polymer is present in an amount of up to about 1% by weight.
Claim 26
Dependent Claim
20 words
The formulation of claim 15 wherein said flocculant is present in an amount of up to about 1% by weight.
Claim 27
Dependent Claim
11 words
The formulation of claim 15 wherein said flocculant comprises aluminum sulfate.
Claim 28
Dependent Claim
21 words
The formulation of claim 15 wherein said peptizing agent is present in an amount of up to about 1% by weight.
Claim 29
Dependent Claim
14 words
The formulation of claim 15 wherein said peptizing agent comprises an alkali metal carbonate.
Claim 30
Dependent Claim
12 words
The formulation of claim 27 wherein said peptizing agent comprises sodium carbonate.
Claim 31
Dependent Claim
19 words
The formulation of claim 15 wherein the particle size of said refractory material is about 200 mesh or finer.
Claim 32
Dependent Claim
23 words
The formulation of claim 15 wherein said refractory material is present in an amount of from about 90 to about 97% by weight.
Claim 33
Dependent Claim
95 words
A mold wash comprising a slurry of: a water soluble polymer of a monoolefinic carboxylic acid monomer having the general formula: ##STR9## wherein R is selected from the class consisting of hydrogen, monovalent alkyl radicals, monovalent aryl radicals, monovalent aralkyl radicals, monovalent alkaryl radicals and monovalent cycloaliphatic radicals, a clay having a liquid limit number of greater than 600 with high swelling capacity in water, a solids suspension control additive comprising (a) a flocculant comprising a water soluble salt of a polyvalent metal ion, and (b) a peptizing agent, a particulate refractory material, and water.
Claim 34
Dependent Claim
95 words
A mold wash comprising a slurry of: a water soluble polymer of a monoolefinic carboxylic acid monomer having the general formula: ##STR9## wherein R is selected from the class consisting of hydrogen, monovalent alkyl radicals, monovalent aryl radicals, monovalent aralkyl radicals, monovalent alkaryl radicals and monovalent cycloaliphatic radicals, a clay having a liquid limit number of greater than 600 with high swelling capacity in water, a solids suspension control additive comprising (a) a flocculant comprising a water soluble salt of a polyvalent metal ion, and (b) a peptizing agent, a particulate refractory material, and water.
Claim 35
Dependent Claim
25 words
The mold wash of claim 31 wherein said carboxylic acid monomer is selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof.
Claim 36
Dependent Claim
14 words
The mold wash of claim 32 wherein said polymer includes a non-carboxylated polymerizable monomer.
Claim 37
Dependent Claim
46 words
The mold wash of claim 33 wherein said non-carboxylated monomer is present in said polymer in an amount of from about 30 to about 80% by weight and said carboxylic acid monomer is present in an amount of from about 20 to about 70% by weight.
Claim 38
Dependent Claim
48 words
The mold wash of claim 33 wherein said non-carboxylated polymerizable monomer comprises a compound having the general formula: ##STR10## wherein R 1 is a member of the class consisting of alkyl groups having from 1 to 30 carbon atoms and R 2 is hydrogen or a methyl group.
Claim 39
Dependent Claim
27 words
The mold wash of claim 35 wherein said non-carboxylated polymerizable monomer is selected from the class consisting of methyl acrylate, ethyl acrylate, methyl methacrylate and mixtures thereof.
Claim 40
Dependent Claim
12 words
The mold wash of claim 31 wherein said clay comprises a bentonite.
Claim 41
Dependent Claim
23 words
The mold wash of claim 31 wherein said clay is present in an amount of from about 0.5 to about 3.5% by weight.
Claim 42
Dependent Claim
23 words
The mold wash of claim 31 wherein said polymer is present in an amount of from about 0.01 to about 0.2% by weight.
Claim 43
Dependent Claim
20 words
The mold wash of claim 31 wherein said flocculant is present in amounts of up to about 0.5% by weight.
Claim 44
Dependent Claim
12 words
The mold wash of claim 31 wherein said flocculant comprises aluminum sulfate.
Claim 45
Dependent Claim
24 words
The mold wash of claim 31 wherein said peptizing agent is present in said mixture in amounts of up to about 0.5% by weight.
Claim 46
Dependent Claim
15 words
The mold wash of claim 31 wherein said peptizing agent comprises an alkali metal carbonate.
Claim 47
Dependent Claim
13 words
The mold wash of claim 43 wherein said peptizing agent comprises sodium carbonate.
Claim 48
Dependent Claim
20 words
The mold wash of claim 31 wherein the particle size of said refractory material is about 200 mesh or finer.
Claim 49
Dependent Claim
24 words
The mold wash of claim 31 wherein said refractory material is present in an amount of from about 27 to about 53% by weight.
Claim 50
Dependent Claim
26 words
The mold wash of claim 31 wherein said water is present in said slurry in an amount of from about 45 to about 70% by weight.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-21 | 1986-08-23 | 1987-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-21 | 1990-08-23 | 1991-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-21 | 1994-08-23 | 1995-02-22 | $7700.00 | Window Closed / Lapsed |