SELF-POLYMERIZABLE PHENOLIC RESINS
This invention relates to a modified phenolic resin and a process of modifying a phenolic resin by an ethylenically unsaturated carboxylate compound. The ethylenically unsaturated carboxylate compound contains a thermally polymerizable or crosslinkable functional group, and has affinity to or is che...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | This invention relates to a modified phenolic resin and a process of modifying a phenolic resin by an ethylenically unsaturated carboxylate compound. The ethylenically unsaturated carboxylate compound contains a thermally polymerizable or crosslinkable functional group, and has affinity to or is chemically bonded to the hydroxyl phenyl or the benzene ring of the phenolic resin, thereby introducing the thermally polymerizable or crosslinkable functional group in the phenolic resin. The invention also relates to a rubber composition comprising a rubber component and the modified phenolic resin component wherein the rubber composition does not contain a methylene donor cross-linking agent that decomposes to an aldehyde. The invention also relates to a formaldehyde-free process for preparing a rubber composition comprising mixing a rubber component and the modified phenolic resin component, wherein the process does not emit formaldehyde. |
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