Modified hydrocarbylphenol-aldehyde resins for use as tackifiers and rubber compositions containing them
AssigneeSi Group, Inc.
InventorsTimothy E. Banach, L. Scott Howard, Todd Scott Makenzie, Ronald K. Smith
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Abstract
The invention relates to a modified hydrocarbylphenol-aldehyde resin prepared by reacting a hydrocarbylphenol-aldehyde resin with a primary or secondary amine and further with an epoxide. The invention also provides a process for preparing a modified, hydrocarbylphenol-aldehyde resin and a rubber composition containing such resin.
Claims21
A modified, hydrocarbylphenol-aldehyde resin prepared by reacting an epoxide with a resin of Formula (I) in the presence of a basic catalyst and at a basic pH,
- wherein
- R1 is a straight or branched C1-C30 alkyl;
- R2 is —CH2R5,
- wherein R5 is an amine of formula (i)
- wherein R′ and R″ are independently H, C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, aryl, or wherein R′ and R″, together with the N carrying them, form a 5-7 membered heterocyclic ring;
- R3 is R2 or —CH(R5)OH;
- R4 is H or C1-C4 alkyl;
- and
- m plus n is at least 1.
A process for preparing a modified, hydrocarbylphenol-aldehyde resin comprising the step of:
- (a) reacting an epoxide with a resin of Formula (I) in the presence of a basic catalyst and at a basic pH,
- wherein
- R1 is a straight or branched C1-C30 alkyl;
- R2 is —CH2R5,
- wherein R5 is an amine of formula (i)
- wherein R′ and R″ are independently H, C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, aryl, or wherein R′ and R″, together with the N carrying them, form a 5-7 membered heterocyclic ring;
- R3 is R2 or —CHR5OH;
- R4 is H or C1-C4 alkyl;
- and
- m plus n is at least 1.
A modified, hydrocarbylphenol-aldehyde resin prepared by reacting a C16 alkyl epoxide with a resin of Formula (I) in the presence of a basic catalyst and at a basic pH,
- wherein
- R1 is a straight or branched C1-C30 alkyl;
- R2 is —CH2R5, wherein R5 is a morpholinyl group;
- R3 is R2 or —CH(R5)OH;
- R4 is H or C1-C4 alkyl;
- and
- m plus n is at least 1.
A process for preparing a modified, hydrocarbylphenol-aldehyde resin comprising the step of:
- (a) reacting a C16 alkyl epoxide with a resin of Formula (I) in the presence of a basic catalyst and at a basic pH,
- wherein
- R1 is a straight or branched C1-C30 alkyl;
- R2 is —CH2R5, wherein R5 is a morpholinyl group;
- R3 is R2 or —CHR5OH;
- R4 is H or C1-C4 alkyl;
- and
- m plus n is at least 1.
Dependencies are inferred from the claim text.