US4341668A
Expired / Lapsed
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Aqueous composition containing aldehyde condensate and use thereof
Assignee: Ashland LLC
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Filing: 1980-09-16
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Granted: 1982-07-27
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Expires: 2000-09-16
Abstract
Abstract A composition containing a methylene donor, hydrophobic component containing an organic hydrophobic diluent and an isocyanate; and an aqueous component containing a water compatible aldehyde condensate and use thereof as an impregnant or bonding agent for cellulosic materials including paper, wood and cotton, and/or fibrous materials including synthetic fibers, such as rayon and nylon.
Inventors
- 👤 Jeffrey E. Martin
- 👤 Albert F. Vozella
- 👤 Golden F. Watts
- 👤 Edwin R. Luckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:32
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/02
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
70 words
A composition comprising a compound capable of providing reactive methylene sites at elevated temperature of about 135° C. and above; a hydrophobic component containing an organic hydrophobic diluent and an isocyanate; and an aqueous component containing a water soluble phenolic-aldehyde condensate having free methylol groups and a pH of at least about 8 and being obtained from about 0.75 to about 3.3 moles of aldehyde per mole of phenolic compound.
Claim 2
Dependent Claim
70 words
A composition comprising a compound capable of providing reactive methylene sites at elevated temperature of about 135° C. and above; a hydrophobic component containing an organic hydrophobic diluent and an isocyanate; and an aqueous component containing a water soluble phenolic-aldehyde condensate having free methylol groups and a pH of at least about 8 and being obtained from about 0.75 to about 3.3 moles of aldehyde per mole of phenolic compound.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein said compound capable of providing reactive methylene sites is hexamethylene tetraamine or trimethylol nitromethane.
Claim 4
Dependent Claim
17 words
The composition of claim 1 wherein said compound capable of providing reactive methylene sites is hexamethylene tetraamine.
Claim 5
Dependent Claim
19 words
The composition of claim 1 wherein the aqueous component further includes a polymer in addition to said aldehyde condensate.
Claim 6
Dependent Claim
20 words
The composition of claim 4 wherein said polymer in addition to said aldehyde condensate contains groups reactive with said isocyanate.
Claim 7
Dependent Claim
11 words
The composition of claim 1 which further contains a tertiary amine.
Claim 8
Dependent Claim
15 words
The composition of claim 1 wherein said isocyanate compound contains at least two isocyanate groups.
Claim 9
Dependent Claim
13 words
The composition of claim 7 wherein said isocyanate is polymeric methylene bisphenyl diisocyanate.
Claim 10
Dependent Claim
27 words
The composition of claim 1 wherein said hydrophobic diluent is selected from the group of aliphatic hydrocarbons, aromatic hydrocarbons, cycloaliphatic hydrocarbons, halogenated hydrocarbons, ketones, ethers and esters.
Claim 11
Dependent Claim
16 words
The composition of claim 9 wherein said hydrophobic solvent is an aliphatic, cycloaliphatic or aromatic hydrocarbon.
Claim 12
Dependent Claim
13 words
The composition of claim 9 wherein said hydrophobic solvent is an aromatic hydrocarbon.
Claim 13
Dependent Claim
11 words
The composition of claim 9 wherein the hydrophobic solvent is toluene.
Claim 14
Dependent Claim
15 words
The composition of claim 9 wherein said hydrophobic solvent is a diester of phthalic acid.
Claim 15
Dependent Claim
12 words
The composition of claim 9 wherein said hydrophobic solvent is dibutyl phthalate.
Claim 16
Dependent Claim
30 words
The composition of claim 1 wherein the isocyanate is employed in amounts of about 1 to about 99% by weight based upon the total amount of isocyanate and hydrophobic diluent.
Claim 17
Dependent Claim
30 words
The composition of claim 1 wherein the isocyanate is employed in amounts of about 10 to about 90% by weight based upon the total amount of isocyanate and hydrophobic diluent.
Claim 18
Dependent Claim
30 words
The composition of claim 1 wherein the isocyanate is employed in amounts of about 50 to about 90% by weight based upon the total amount of isocyanate and hydrophobic diluent.
Claim 19
Dependent Claim
10 words
The composition of claim 6 wherein said amine is triethylamine.
Claim 20
Dependent Claim
13 words
The composition of claim 1 wherein said phenolic-aldehyde condensate is a phenol-formaldehyde condensate.
Claim 21
Dependent Claim
25 words
The composition of claim 1 wherein the phenolic-aldehyde condensate is obtained from about 0.95 to about 3 moles of aldehyde per mole of phenolic compound.
Claim 22
Dependent Claim
25 words
The composition of claim 1 wherein the phenolic-aldehyde condensate is obtained from about 1.5 to about 2.5 moles of aldehyde per mole of phenolic compound.
Claim 23
Dependent Claim
33 words
The composition of claim 1 wherein said phenolic-aldehyde condensate is prepared under basic conditions employing about 0.25 to about 4% by weight of a basic material based upon the amount of phenolic compound.
Claim 24
Dependent Claim
36 words
The composition of claim 1 wherein said phenolic-aldehyde condensate is prepared under basic conditions in the presence of about 0.75 to about 2.5% by weight of a basic material based upon the amount of phenolic compound.
Claim 25
Dependent Claim
21 words
The composition of claim 1 wherein said phenolic-aldehyde condensate contains about 3 to about 5% by weight of free phenolic compound.
Claim 26
Dependent Claim
28 words
The composition of claim 1 wherein said phenolic-aldehyde condensate is a phenol-formaldehyde condensate prepared in the presence of casein at a pH of about 8.5 to about 9.0.
Claim 27
Dependent Claim
29 words
The composition of claim 25 wherein the amount of casein present is from about 0.5 to about 10% by weight based upon the weight of the phenol and formaldehyde.
Claim 28
Dependent Claim
86 words
The composition of claim 5 wherein the aldehyde condensate is employed in an amount of about 5 to about 50% by weight; said isocyanate is employed in an amount of about 2 to about 75% by weight; and the polymer which contains groups reactive with said isocyanate is employed in an amount of about 25 to about 90% by weight wherein the above amounts are based upon the total of aldehyde condensate, isocyanate, and the polymer which contains groups reactive with said isocyanate in the composition.
Claim 29
Dependent Claim
38 words
The composition of claim 5 which contains from about 0.1 to about 10% by weight of a tertiary amine based upon the total of aldehyde condensate, isocyanate, the polymer which contains groups reactive with said isocyanate and amine.
Claim 30
Dependent Claim
83 words
The composition of claim 5 wherein the aldehyde condensate is employed in an amount of about 10 to about 30% by weight, said isocyanate is employed in an amount of about 5 to about 40% by weight; said polymer component which contains groups reactive with said isocyanate is employed in an amount of about 50 to about 85% by weight wherein the above amounts are based upon the total of the phenolic-aldehyde condensate, isocyanate, and polymer reactive with said isocyanate in the composition.
Claim 31
Dependent Claim
41 words
The composition of claim 29 which includes a tertiary amine of about 0.1 to about 4% by weight based upon the total of said phenolic-aldehyde condensate, said isocyanate, said amine, and said polymer component which contains groups reactive with said isocyanate.
Claim 32
Dependent Claim
38 words
The composition of claim 1, 27, 28, 29 or 30 wherein the amount of said compound capable of providing reactive methylene sites is about 1 to about 20% of weight based upon the weight of said aldehyde condensate.
Claim 33
Dependent Claim
33 words
The composition of claim 31 wherein the amount of said compound capable of providing reactive methylene sites is about 5 to about 10% by weight based upon the weight of said aldehyde condensate.
Claim 34
Dependent Claim
18 words
The composition of claim 1 wherein the total nonvolatile content is about 10 to about 74% by volume.
Claim 35
Dependent Claim
18 words
The composition of claim 1 wherein the total nonvolatile content is about 30 to about 60% by volume.
Claim 36
Dependent Claim
18 words
The composition of claim 1 wherein the total nonvolatile content is about 35 to about 55% by volume.
Claim 37
Dependent Claim
17 words
The composition of claim 1 wherein the pH of said phenolic-aldehyde condensate is at least about 8.3.
Claim 38
Dependent Claim
25 words
The composition of claim 5 which said groups reactive with said isocyanate are selected from the group of hydroxyl, carboxyl, amine, amide or mixtures thereof.
Claim 39
Dependent Claim
29 words
The composition of claim 5 wherein said polymer component which contains groups reactive with said isocyanate have an average of at least about two reactive functionalities per polymer chain.
Claim 40
Dependent Claim
36 words
The composition of claim 4 or 5 which further contains about 0.1 to about 10 weight percent of a surface-active agent based upon the weight of the polymers present in the aqueous component of the composition.
Claim 41
Dependent Claim
26 words
The composition of claim 1 which further includes about 10 to about 50 volume percent of a solid filler based upon the nonvolatiles of the composition.
Claim 42
Dependent Claim
12 words
The composition of claim 1 which is substantially free from acid catalysts.
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) | 1985-07-26 | 1986-01-25 | 1986-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-26 | 1990-01-25 | 1990-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-26 | 1994-01-25 | 1994-07-27 | $7700.00 | Window Closed / Lapsed |