Friction particle for brake lining专利检索-自粘漆电缆，导体和接线专利检索查询-专利查询网

Friction particle for brake lining

阅读：796发布：2024-01-15

专利汇可以提供Friction particle for brake lining专利检索，专利查询，专利分析的服务。并且A friction particle, useful in applications where cashew nut shell oil friction particles have been used, may be prepared by the reaction at a temperature from about 225* to about 400* Fahrenheit of a non-oxyalkylated resole with resin selected from the group consisting of an oxyalkylated resole, an alkylated resole, an alkylated novolac, an oxyalkylated novolac, and mixtures thereof until it is insoluble, infusible, and does not soften slightly under mechanical force at temperatures below about 400*F, and has substantially no cohesive or bonding strength.，下面是Friction particle for brake lining专利的具体信息内容。

权利要求

1. A FRICTION PARTICLE COMPRISING A NON-CATALYZED PRODUCT OF THE REACTION AT ABOUT 225* TO ABOUT 400*F. OF A NON-HYDROXYALKYLATED, HYDROXY AROMATIC HYDROCARBON-ALDEHYDE RESOLE CONTAINING SUBSTANTIALLY NO ETHERIFIED AROMATIC HYDROXYL GROUP WITH AN ALKYLATED HYDROXY AROMATIC HYDROCARBONALDEHYDE RESOLE, UNTIL THE RESULTING PRODUCT IS SUBSTANTIALLY INSOLUBLE IN ACETONE, INFUSIBLE, AND DOES NOT SOFTEN SLIGHTLY UNDER MECHANICAL FORCE AT A TEMPERATURE BELOW 400*F. AND HAS SUBSTANTIALLY NO COHESIVE OR BONDING STRENGTH, WHEREIN SAID NON-HYDROXYALKYLATED RESOLE COMPRIESE ABOUT 60 TO ABOUT 95% OF THE WEIGHT OF THE RESIN COMPONENTS, WHEREIN THE ALKYLATED GROUPS ARE SUBSTITUTED ON THE AROMATIC RING AND 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.

2. The particle of claim 1 wherein the first said resole in the particle is the condensation product of phenol and formaldehyde in an alkaline medium.

3. The friction particle of claim 1 which comprises the reaction product of about 95 to about 60 percent by weight of a non-hydroxyalkylated, non-alkylated resole and about 5 to about 40 percent by weight of a non-hydroxyalkylated, alkylated resole.

4. A brake lining comprising the cured product of a friction particle of claim 1, a resin binder and an inorganic filler.

5. A brake lining comprising the cured product of about 30 to 60 weight percent asbestos fiber, up to about 40 weight percent of other inorganic fillers and abrasives, about 5 to 15 weight percent of the friction particle of claim 1, and about 15 to 30 weight percent of binder.

6. A brake lining comprising the cured product of about 30 to 60 weight percent asbestos fiber, up to about 40 weight percent of other inorganic fillers and abrasives, about 5 to 15 weight percent of a friction particle of claim 3, and about 15 to 30 weight percent of bindEr.

7. The friction particle of claim 1 in which comprises the reaction product of about 5 to about 95 percent by weight of a non-hydroxyalkylated, alkylated resole and about 95 to about 5 percent by weight of a different non-hydroxyalkylated, alkylated resole.

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Friction particle for brake lining

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