Aldehyde condensate tackifiers for rubber
AssigneeBASF SE
InventorsRichard Baur, Knut Oppenlaender, Gerhard Paulus, Hubertus Queins, Hubert Schoeppl
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Abstract
Condensation products of aniline, a phenol or alkylated phenol and an aldehyde, especially formaldehyde, may be used as tackifiers and aging retardants for rubber, especially natural rubber.
Claims4
A condensation product useful as a tackifying agent in rubber compositions, said product being the condensation product of octylphenol or nonylphenol, aniline, and formaldehyde under acid or alkaline conditions and containing per mol of said octyl- or nonylphenol, from 0.2 to 1 mole of aniline and from 0.8 to 2 moles of formaldehyde, the mole ratio of the sum of the moles of aniline and said octyl- or nonylphenol to the moles of formaldehyde being from 1:0.5 to 1:1.
Dependencies are inferred from the claim text.