Patent US3931329A successfully refreshed from Google Patents.
US3931329A
Expired / Lapsed
US
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Aldehyde condensation products of fluoroaliphatic phenols
Assignee: 3M Co
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Filing: 1974-01-23
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Granted: 1976-01-06
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Expires: 1994-01-23
Abstract
Abstract Condensation products of aldehydes and fluoraliphatic phenols are substantive to wool, synthetic polyamides, leather and skin, the compositions preferably being extended with a suitable pharmaceutical medium. The condensation products are useful for the preparation of compositions that render such materials oil and water repellent.
Inventors
- 👤 Leland S. Endres
- 👤 Leo F. Gehlhoff
- 👤 Dallas D. Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:47
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/69; A61K8/70; A61Q; A61Q17/00; C; C08; C08G; C08G8/00; C08G8/04; C08G8/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
A condensation polymer having an average molecular weight of about 800 to about 1500 of the condensation catalyst catalyzed reaction of a phenol of the formula ##EQU1## wherein l, m and r are 1 or 2, t is 1; H is a hydrogen atom sufficiently reactive to undergo a catalyzed condensation reaction with an aldehyde; A is an aryl nucleus containing from 6 to 15 carbon atoms; OH is a phenolic hydroxyl group; R f is a monovalent fluorinated saturated aliphatic radical containing from 3 to 20 carbon atoms and Q is selected from the class consisting of carbonyl and carbonamide and a saturated aliphatic aldehyde containing not more than 7 carbon atoms in addition to the aldehyde carbon atom or benzaldehyde.
Claim 2
Dependent Claim
122 words
A condensation polymer having an average molecular weight of about 800 to about 1500 of the condensation catalyst catalyzed reaction of a phenol of the formula ##EQU1## wherein l, m and r are 1 or 2, t is 1; H is a hydrogen atom sufficiently reactive to undergo a catalyzed condensation reaction with an aldehyde; A is an aryl nucleus containing from 6 to 15 carbon atoms; OH is a phenolic hydroxyl group; R f is a monovalent fluorinated saturated aliphatic radical containing from 3 to 20 carbon atoms and Q is selected from the class consisting of carbonyl and carbonamide and a saturated aliphatic aldehyde containing not more than 7 carbon atoms in addition to the aldehyde carbon atom or benzaldehyde.
Claim 3
Dependent Claim
122 words
A condensation polymer having an average molecular weight of about 900 to about 2500 of the condensation catalyst catalyzed reaction of a phenol of the formula ##EQU2## wherein l, m and r are 1 or 2, t is 1; H is a hydrogen atom sufficiently reactive to undergo a catalyzed condensation reaction with an aldehyde; A is an aryl nucleus containing from 6 to 15 carbon atoms; OH is a phenolic hydroxyl group; R f is a monovalent fluorinated saturated aliphatic radical containing from 3 to 20 carbon atoms and Q is selected from the class consisting of carbonyl and carbonamide and a saturated aliphatic aldehyde containing not more than 7 carbon atoms in addition to the aldehyde carbon atom or benzaldehyde.
Claim 4
Dependent Claim
122 words
A condensation polymer having an average molecular weight of about 900 to about 2500 of the condensation catalyst catalyzed reaction of a phenol of the formula ##EQU2## wherein l, m and r are 1 or 2, t is 1; H is a hydrogen atom sufficiently reactive to undergo a catalyzed condensation reaction with an aldehyde; A is an aryl nucleus containing from 6 to 15 carbon atoms; OH is a phenolic hydroxyl group; R f is a monovalent fluorinated saturated aliphatic radical containing from 3 to 20 carbon atoms and Q is selected from the class consisting of carbonyl and carbonamide and a saturated aliphatic aldehyde containing not more than 7 carbon atoms in addition to the aldehyde carbon atom or benzaldehyde.
Claim 5
Dependent Claim
11 words
A polymer according to claim 1 wherein the aldehyde is formaldehyde.
Claim 6
Dependent Claim
11 words
A polymer according to claim 3 wherein the phenol is ##SPC3##
References Cited (Backward Citations)
US3832409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |