Title:
PHENOLIC MODIFIED RESORCINOLIC RESIN FOR RUBBER COMPOUNDING
Document Type and Number:
Japanese Patent JP2011202174
Kind Code:
A
Abstract:
To provide an improved methylene acceptor which has a shorter cure time to obtain rubber compositions.
A vulcanizable rubber composition comprises (a) a rubber component; (b) a methylene donor compound; and (c) a methylene acceptor comprising a high ortho-ortho bonded phenolic novolak resin and a resorcinolic resin. (c) The methylene acceptor can be prepared by first reacting one or more phenolic compounds represented by the formula with an aldehyde in the presence of an ortho directing catalyst and then combining a resorcinol-formaldehyde novolak resin to obtain a phenolic and resorcinolic novolak resin blend: where R is selected from the group consisting of H, an alkyl group of 1-16 carbon atoms, and an aralkyl group of 8-12 carbon atoms.
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| JPS5326878 | RUBBER COMPOSITION |
Inventors:
DURAIRAJ RAJ B
WALKUP C MICHAEL
LAWRENCE MARK A
WALKUP C MICHAEL
LAWRENCE MARK A
Application Number:
JP2011118569A
Publication Date:
October 13, 2011
Filing Date:
May 27, 2011
Export Citation:
Assignee:
INDSPEC CHEM CORP
International Classes:
C08L21/00; B60C1/00; C08G8/04; C08K5/3477; C08L61/06; C08L61/08; C08L61/12
Attorney, Agent or Firm:
Toru Ishikawa