US4387207A
Expired / Lapsed
US
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Resorcinol composition and method of making same
Assignee: Paratech Inc
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Filing: 1982-07-14
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Granted: 1983-06-07
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Expires: 2002-07-14
Abstract
Abstract Modified resorcinol polymers are prepared by mixing acid or base with liquid phenol-resorcinol resin, permitting the mixture to stand for a period of at least about 48 hours followed by separation of an aqueous solution from the resin to recover the resorcinol polymer. The modified resorcinol has improved physical characteristics when employed in molding compositions, coating compositions and the like.
Inventors
- 👤 Bill R. Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:54
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; B22C1/2233; B22C1/2246; B22C1/2253; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08G14/08
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
50 words
A resorcinol polymer prepared by the process of thoroughly mixing an aqueous phenol-resorcinol resin with a minor amount of acid or base, permitting said phenol-resorcinol mixture to stand for a period of at least 48 hours, forming an aqueous by-product, and separating said aqueous by-product from the resulting phenol-resorcinol polymer.
Claim 2
Dependent Claim
50 words
A resorcinol polymer prepared by the process of thoroughly mixing an aqueous phenol-resorcinol resin with a minor amount of acid or base, permitting said phenol-resorcinol mixture to stand for a period of at least 48 hours, forming an aqueous by-product, and separating said aqueous by-product from the resulting phenol-resorcinol polymer.
Claim 3
Dependent Claim
18 words
The resorcinol polymer of claim 1, wherein said aqueous phenol-resorcinol resin is capable of curing at room temperature.
Claim 4
Dependent Claim
15 words
The resorcinol polymer of claim 2, wherein said aqueous phenol-resorcinol resin is a phenol-resarcinol adhesive.
Claim 5
Dependent Claim
22 words
The resorcinol polymer of claim 3, wherein said aqueous phenol-resorcinol resin is a phenol-resorcinol adhesive in an aqueous solution containing volatile solvents.
Claim 6
Dependent Claim
32 words
The resorcinol polymer of claim 1 or 4, wherein said acid is mixed with said resin in an amount of from about 2.5% to 5% based on the volume of said resin.
Claim 7
Dependent Claim
26 words
The resorcinol polymer of claim 5, wherein said aqueous by-product is separated by decanting from said mixture after said period of at least about 48 hours.
Claim 8
Dependent Claim
23 words
The resorcinol polymer of claim 5, wherein said aqueous by-product is separated by centrifugation after said period of at least about 48 hours.
Claim 9
Dependent Claim
18 words
The resorcinol polymer of claim 1, wherein said period is from about 48 hours to about 72 hours.
Claim 10
Dependent Claim
23 words
The resorcinol polymer of claim 1, wherein said period is 48 hours at a temperature of about 22° C. and at atmospheric pressure.
Claim 11
Dependent Claim
26 words
The resorcinol polymer of claim 1, wherein said acid is selected from the group consisting of phosphoric, sulfuric, nitric, hydrochloric, perchloric, lactic, acetic and phthalic acids.
Claim 12
Dependent Claim
21 words
The resorcinol polymer of claim 1, wherein said base is selected from the group consisting of potassium hydroxide and sodium hydroxide.
Claim 13
Dependent Claim
50 words
A process for preparing a resorcinol polymer comprising: thoroughly mixing an aqueous phenol-resorcinol resin with a minor amount of acid or base, permitting said phenol-resorcinol mixture to stand for a period of at least 48 hours, forming an aqueous by-product, and separating said aqueous by-product from the resulting phenol-resorcinol polymer.
Claim 14
Dependent Claim
50 words
A process for preparing a resorcinol polymer comprising: thoroughly mixing an aqueous phenol-resorcinol resin with a minor amount of acid or base, permitting said phenol-resorcinol mixture to stand for a period of at least 48 hours, forming an aqueous by-product, and separating said aqueous by-product from the resulting phenol-resorcinol polymer.
Claim 15
Dependent Claim
17 words
The process of claim 12, wherein said aqueous phenol-resorcinol resin is capable of curing at room temperature.
Claim 16
Dependent Claim
14 words
The process of claim 13, wherein said aqueous phenol-resorcinol resin is a phenol-resorcinol adhesive.
Claim 17
Dependent Claim
21 words
The process of claim 14, wherein said aqueous phenol-resorcinol resin is a phenol-resorcinol adhesive in an aqueous solution containing volatile solvents.
Claim 18
Dependent Claim
31 words
The process of claim 12 or 15, wherein said acid is mixed with said resin in an amount of from about 2.5% to 5% based on the volume of said resin.
Claim 19
Dependent Claim
25 words
The process of claim 16, wherein said aqueous by-product is separated by decanting from said mixture after said period of at least about 48 hours.
Claim 20
Dependent Claim
22 words
The process of claim 16, wherein said aqueous by-product is separated by centrifugation after said period of at least about 48 hours.
Claim 21
Dependent Claim
17 words
The process of claim 12, wherein said period is from about 48 hours to about 72 hours.
Claim 22
Dependent Claim
22 words
The process of claim 12, wherein said period is 48 hours at a temperature of about 22° C. and at atmospheric pressure.
Claim 23
Dependent Claim
25 words
The process of claim 12, wherein said acid is selected from the group consisting of phosphoric, sulfuric, nitric, hydrochloric, perchloric, lactic, acetic and phthalic acids.
Claim 24
Dependent Claim
20 words
The process of claim 12, wherein said base is selected from the group consisting of potassium hydroxide and sodium hydroxide.
References Cited (Backward Citations)
US3525379A
Cited
US4152320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |