US4240948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerated resole binder
Assignee: Solutia Inc
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Filing: 1979-11-30
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Granted: 1980-12-23
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Expires: 1999-11-30
Abstract
Abstract A resole resin composition suitable for use as a component of a binder comprises a water-soluble resole resin and an accelerator which is a C 1 to C 4 alkyl partial ester of an aromatic polycarboxylic acid.
Inventors
- 👤 Rodney M. Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
54 words
A resole resin composition comprising an aqueous solution of a low resole resin with a number average molecular weight from 150 to 300 and, as curing accelerator therefore, from 0.5 to 10 percent by weight, based on the resin weight of C 1 to C 4 alkyl partial ester of an aromatic polycarboxylic acid.
Claim 2
Dependent Claim
54 words
A resole resin composition comprising an aqueous solution of a low resole resin with a number average molecular weight from 150 to 300 and, as curing accelerator therefore, from 0.5 to 10 percent by weight, based on the resin weight of C 1 to C 4 alkyl partial ester of an aromatic polycarboxylic acid.
Claim 3
Dependent Claim
16 words
A resole resin composition according to claim 1 in which the polycarboxylic acid is phthalic acid.
Claim 4
Dependent Claim
27 words
A resole resin composition according to either of claims 1 and 2 in which the esterifying group is selected from the group consisting of methyl and isopropyl.
Claim 5
Dependent Claim
36 words
A resole resin composition according to any of claims 1 to 3 in which the amount of the curing accelerator is sufficient to place the pH of the binder solution in the range 7.9 to 8.5.
Claim 6
Dependent Claim
48 words
A resole resin composition comprising an aqueous solution of a phenol formaldehyde resin with a number average molecular weight from 205 to 240 and from 1 to 4 percent by weight based on the resin weight of an accelerator selected from methyl acid phthalate and isopropyl acid phthalate.
Claim 7
Dependent Claim
48 words
A resole resin composition comprising an aqueous solution of a phenol formaldehyde resin with a number average molecular weight from 205 to 240 and from 1 to 4 percent by weight based on the resin weight of an accelerator selected from methyl acid phthalate and isopropyl acid phthalate.
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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |