US4587291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicomponent aqueous resole binder with extended processability time
Assignee: Hexion Specialty Chemicals AG
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Filing: 1985-04-25
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Granted: 1986-05-06
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Expires: 2005-04-25
Abstract
Abstract Binders are described based on acid curing phenol resins and acid curing agents which, after mixing, have an extended processability time but nevertheless exhibit a rapid curing time at relatively low temperatures. They are obtained by using, as the resin, aqueous phenol resols and, as the curing agent, either copper, aluminum, or iron(III) salts of aromatic sulfonic acids or addition products of hydroxy-containing, water-compatible polyols with aromatic sulfonic acids or mixtures of these salts and the polyol addition products. The binders are used for impregnation of fabrics, for production of abrasives and for fiber reinforced plastics.
Inventors
- 👤 Arno Gardziella
- 👤 Karl-Heinz Schwieger
- 👤 Peter Adolphs
- 👤 Gerhard Grossmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:14
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42; C08L; C08L61/00; C08L61/04; C08L61/06; C08L67/00; C08L71/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/31627; Y10T428/31942
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
85 words
A binder composition comprising in aqueous solution an acid curing phenol resin component and at least one acid curing agent therefore, wherein the resin is an aqueous phenol resol with a mole ratio of the phenol to aldehyde of 1:1.1 to 1:3.0 and a content of monomeric phenol of less than 5% and, wherein the curing agent is an addition product of a hydroxy group containing, water compatible polyol having an OH number in the range of 50 to 500 with an aromatic sulfonic acid.
Claim 2
Dependent Claim
85 words
A binder composition comprising in aqueous solution an acid curing phenol resin component and at least one acid curing agent therefore, wherein the resin is an aqueous phenol resol with a mole ratio of the phenol to aldehyde of 1:1.1 to 1:3.0 and a content of monomeric phenol of less than 5% and, wherein the curing agent is an addition product of a hydroxy group containing, water compatible polyol having an OH number in the range of 50 to 500 with an aromatic sulfonic acid.
Claim 3
Dependent Claim
21 words
The binder composition according to claim 1, further comprising that the phenol resin is modified with urea, melamine, or furfuryl alcohol.
Claim 4
Dependent Claim
63 words
The binder composition according to claim 1, wherein said aromatic sulfonic acid is represented by formula: wherein R and R' are the same or different and represent hydrogen, alkyl, hydroxy, alkoxy, carboxy, substituted or unsubstituted aryl or aralkyl, or sulfonyl or substituted sulfonyl, n and m are the same or different integers from 0 to 5 and n+m is no more than 5.
Claim 5
Dependent Claim
22 words
The binder composition according to claim 3, wherein the number of carbon atoms of the aromatic sulfonic acid is 6 to 14.
Claim 6
Dependent Claim
19 words
The binder composition according to claim 3, wherein the alkyl groups are methyl, ethyl, propyl, isopropyl, dimethyl and trimethyl.
Claim 7
Dependent Claim
18 words
The binder composition according to claim 3, wherein the acid is benzenesulfonic acid, phenolsulfonic acid or p-toluenesulfonic acid.
Claim 8
Dependent Claim
14 words
The binder composition according to claim 1, wherein the polyol is a polyester polyol.
Claim 9
Dependent Claim
25 words
The binder composition according to claim 7, wherein the polyester polyol is condensation product of an aliphatic or aromatic dicarboxylic acid and a polyhydric alcohol.
Claim 10
Dependent Claim
21 words
The binder composition according to claim 1, wherein said polyol has a molecular weight in the range of 200 to 4000.
Claim 11
Dependent Claim
23 words
The binder composition according to claim 1, further comprising at least one copper, aluminum, or iron (III) salt of an aromatic sulfonic acid.
Claim 12
Dependent Claim
34 words
The binder composition according to claim 10, further comprising that the mixtures of a salt of an aromatic sulfonic acid and polyol addition adduct is used in a weight ratio of 90:10 to 10:90.
Claim 13
Dependent Claim
10 words
A fabric impregnated with the binder composition of claim 1.
Claim 14
Dependent Claim
21 words
The binder composition according to claim 1 wherein the ratio of said resin to said addition product is 1:0.05 to 1:0.5.
Claim 15
Dependent Claim
38 words
The binder composition according to claim 1 wherein the addition product is prepared by heating a mixture of said water compatible polyol and said aromatic sulphonic acid for five to ten minutes to a temperature of 50°-100° C.
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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) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |