Non-volatile resorcinolic resins and methods of making and using the same
AssigneeIndspec Chemical Corporation
InventorsRaj B. Durairaj, Alex Peterson, Jr.
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Abstract
Methods for preparing low free resorcinol resins are disclosed. These methods generally comprise reacting a resin with an aromatic olefinic compound; suitable resins include one or more resins selected from the group consisting of a dihydric phenol, a polyhydric phenol, a dihydric phenolic novolak resin and a polyhydric phenolic novolak resin; the addition product of at least one of these resins and at least one compound selected from the group consisting of a monooxirane compound and a polyoxirane compound; and a phenol or alkyl or aralkyl substituted mono- or dihydric phenol modified form of these resins. The resins produced by this method are also disclosed, as are rubber compositions utilizing the resin produced by this method.
Claims15
A vulcanizable rubber composition comprising:
- (a) a rubber component selected from natural rubber, synthetic rubber or combinations thereof;
- (b) a methylene donor;
- and
- (c) a methylene acceptor having less than 10% volatile free phenolic monomer;
- wherein said methylene acceptor is the addition product of a first compound and an aromatic olefinic compounds;
- wherein said first compound is selected from the group consisting of:
- (i) one or more resins selected from the group consisting of a monohydric phenolic resin, a dihydric phenolic resin and a polyhydric phenolic resin;
- (ii) the addition product of at least one compound selected from the group consisting of a dihydric phenol, a polyhydric phenol, a dihydric phenolic resin and a polyhydric phenolic resin, and at least one compound selected from the group consisting of a monooxirane compound and a polyoxirane compound;
- and
- (iii) a monohydric phenolic resin, a dihydric phenolic resin or a polyhydric phenolic resin that comprises one or more substituents selected from the group consisting of an alkyl group and an aralkyl group;
- and
- wherein said aromatic olefinic compound is selected from the group consisting of vinyl naphthalene and aromatic olefinic compounds having the formula (3) ##STR4## wherein (R) is selected from the group consisting of H, CH.sub.3 and halogen;
- and R.sub.1 is independently selected from the group consisting of H, OH, an alkyl group having from 1 to 6 carbons, a halogen and --CH.dbd.CH.sub.2.
Dependencies are inferred from the claim text.