US 10,851,224 B2 · Phenolic resin composition and the use thereof in a rubber composition to reduce hysteresis

Abstract

This invention relates to a phenolic resin composition comprising a phenolic resin admixed with and/or modified by one or more functionalized organosulfur compounds. This invention also relates to a rubber composition comprising (i) a natural rubber, a synthetic rubber, or a mixture thereof; (ii) one or more phenolic resins; and (iii) one or more functionalized organosulfur compounds. The interaction between the component (i) and the components (ii) and (iii) reduces the hysteresis increase compared to a rubber composition without the component (iii), upon curing the rubber composition. The invention also relates to a process for preparing the phenolic resin composition, a process for preparing the rubber composition, and a process for reducing the hysteresis increase caused in a rubber composition when a phenolic resin is added to a rubber composition.

Claims26

Dependent claims

A phenolic resin composition comprising:

a phenolic resin admixed with and/or modified by one or more functionalized organosulfur compounds, wherein the organosulfur compound is a thiol, disulfide, polysulfide, or thioester compound, and wherein the functionalization of the organosulfur compound comprises one or more phenolic moieties having one or more unsubstituted para- or ortho-positions, at least one phenolic moiety being bonded to the thiol, disulfide, polysulfide, or thioester moiety through a linking moiety and at least one heteroatom-containing divalent moiety selected from the group consisting of imine, amine, amide, imide, ether, and ester moiety.

Dependencies are inferred from the claim text.

Phenolic resin composition and the use thereof in a rubber composition to reduce hysteresis

Life of this patent

Phenolic resin composition and the use thereof in a rubber composition to reduce hysteresis

Life of this patent

Abstract

Claims26