US3879338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction element composition
Assignee: Occidental Chemical Corp
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Filing: 1972-12-20
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Granted: 1975-04-22
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Expires: 1992-12-20
Abstract
Abstract A friction binder for a friction element composition, especially useful where cashew nut shell oil and/or vegetable oils have been used in a phenolic resin composition, may be prepared by blending a non-oxyalkylated resole with resin selected from the group consisting of an oxyalkylated resole, alkylated resole, an oxyalkylated novolac, an alkylated novolac, and mixtures thereof. The friction element composition is prepared by adding to this binder asbestos fiber and friction imparting materials, and curing the resultant material.
Inventors
- 👤 Frank S Grazen
- 👤 Melvin L Buike
- 👤 Frank M Bryzinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:43
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; C; C08; C08G; C08G8/00; C08G8/28; C08G8/36; C08K; C08K3/00; C08K3/01; C08K3/013; C08L; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
A friction element composition comprising a friction imparting abrasive agent, an inorganic filler and a binder composition consisting essentially of at least 60 percent by weight of a non-hydroxyalkylated hydroxy aromatic hydrocarbon-aldehyde resole containing substantially no etherified aromatic hydroxyl groups and at least 10 percent by weight of a non-hydroxyalkylated, alkylated hydroxy aromatic hydrocarbon-aldehyde novolac, wherein the alkylated groups are selected from the group consisting of: a. alkyl groups of 1 to 60 carbon atoms, b. cycloalkyl groups of 5 to 12 carbon atoms, c. alkyl, aryl and cycloalkyl ketonic groups wherein the hydrocarbon portion is as defined in (a) and (b), d. alkyl, aryl and cycloalkyl carboxylic groups wherein the hydrocarbon portion is as defined in (a) and (b), e. aryl groups of 6 to 24 carbon atoms, and f. aryl substituted alkyl wherein the aryl is phenyl, lower alkyl-substituted phenyl or hydroxy substituted phenyl.
Claim 2
Dependent Claim
146 words
A friction element composition comprising a friction imparting abrasive agent, an inorganic filler and a binder composition consisting essentially of at least 60 percent by weight of a non-hydroxyalkylated hydroxy aromatic hydrocarbon-aldehyde resole containing substantially no etherified aromatic hydroxyl groups and at least 10 percent by weight of a non-hydroxyalkylated, alkylated hydroxy aromatic hydrocarbon-aldehyde novolac, wherein the alkylated groups are selected from the group consisting of: a. alkyl groups of 1 to 60 carbon atoms, b. cycloalkyl groups of 5 to 12 carbon atoms, c. alkyl, aryl and cycloalkyl ketonic groups wherein the hydrocarbon portion is as defined in (a) and (b), d. alkyl, aryl and cycloalkyl carboxylic groups wherein the hydrocarbon portion is as defined in (a) and (b), e. aryl groups of 6 to 24 carbon atoms, and f. aryl substituted alkyl wherein the aryl is phenyl, lower alkyl-substituted phenyl or hydroxy substituted phenyl.
Claim 3
Dependent Claim
144 words
A FRICTION ELEMENT COMPOSITION COMPRISING A FRICTION IMPARTING ABRASIVE AGENT, AN INORGANIC FILLER AND A BINDER COMPOSITION CONSISTING ESSENTIALLY OF AT LEAST 60 PERCENT BY WEIGHT OF A NON-HYDROXYALKYLATED HYDROXY AROMATIC HYDROCARBON-ALDEHYDE RESOLE CONTAINING SUBSTANTIALLY NO ETHERIFIED AROMATIC HYDROXYL GROUPS AND AT LEAST 10 PERCENT BY WEIGHT OF A NON-HYDROXYALKYLATED, ALKYLATED HYDROXY AROMATIC HYDROCARBON-ALDEHYDE NOVOLAC, WHEREIN THE ALKYLATED GROUPS ARE SELECTED FROM THE GROUP CONSISTING OF: A. ALKYL GROUPS OF 1 TO 60 CARBON ATOMS, B. CYCLOALKYL GROUPS OF 5 TO 12 CARBON ATOMS, C. ALKYL, ARYL AND CYCLOALKYL KETONIC GROUPS WHEREIN THE HYDROCARBON PORTION IS AS DEFINED IN (A) AND (B), D. ALKYL, ARYL AND CYCLOALKYL CARBOXYLIC GROUPS WHEREIN THE HYDROCARBON PORTION IS AS DEFINED IN (A) AND (B), E. ARYL GROUPS OF 6 TO 24 CARBON ATOMS, AND F.ARYL-SUBSTITUTED ALKYL WHEREIN THE ARYL IS PHENYL, LOWER ALKYL-SUBSTITUTED PHENYL OR HYDROXY SUBSTITUTED PHENYL.
Claim 4
Dependent Claim
144 words
A FRICTION ELEMENT COMPOSITION COMPRISING A FRICTION IMPARTING ABRASIVE AGENT, AN INORGANIC FILLER AND A BINDER COMPOSITION CONSISTING ESSENTIALLY OF AT LEAST 60 PERCENT BY WEIGHT OF A NON-HYDROXYALKYLATED HYDROXY AROMATIC HYDROCARBON-ALDEHYDE RESOLE CONTAINING SUBSTANTIALLY NO ETHERIFIED AROMATIC HYDROXYL GROUPS AND AT LEAST 10 PERCENT BY WEIGHT OF A NON-HYDROXYALKYLATED, ALKYLATED HYDROXY AROMATIC HYDROCARBON-ALDEHYDE NOVOLAC, WHEREIN THE ALKYLATED GROUPS ARE SELECTED FROM THE GROUP CONSISTING OF: A. ALKYL GROUPS OF 1 TO 60 CARBON ATOMS, B. CYCLOALKYL GROUPS OF 5 TO 12 CARBON ATOMS, C. ALKYL, ARYL AND CYCLOALKYL KETONIC GROUPS WHEREIN THE HYDROCARBON PORTION IS AS DEFINED IN (A) AND (B), D. ALKYL, ARYL AND CYCLOALKYL CARBOXYLIC GROUPS WHEREIN THE HYDROCARBON PORTION IS AS DEFINED IN (A) AND (B), E. ARYL GROUPS OF 6 TO 24 CARBON ATOMS, AND F.ARYL-SUBSTITUTED ALKYL WHEREIN THE ARYL IS PHENYL, LOWER ALKYL-SUBSTITUTED PHENYL OR HYDROXY SUBSTITUTED PHENYL.
Claim 5
Dependent Claim
22 words
The composition of claim 1 wherein the first said resole is the condensation product of phenol and formaldehyde in an alkaline medium.
Claim 6
Dependent Claim
20 words
The composition of claim 1 wherein the novolac is the condensation product of phenol and formaldehyde in an acid medium.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |