Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-10-31
1981-01-20
Briggs, Sr., Wilbert J.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
156335, 260 285B, 260 293, 260 294UA, 525138, 528158, 528162, 528164, C08L 702, C08L 910, C08L 6114
Patent
active
042461448
ABSTRACT:
Phenolic aldehyde resins used in adhesive coatings for binding substrates to rubber are modified to provide better adhesion and to decrease the problem of blowholes on the substrate coated with the adhesive coating. The resin is modified by incorporating into the resin a compound selected from the group consisting of urea, thiourea, thionamide having one to six carbon atoms or mixture thereof. In the method of preparing the modified phenolic aldehyde resin about 1 to about 10 weight percent based on the resin is added to the aqueous solution either simultaneously with or sequentially after the addition of the phenolic compound and aldehyde. The modified phenolic resin is then combined with an elastomeric latex or latices to produce the improved adhesive coating.
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Briggs Sr. Wilbert J.
PPG Industries Inc.
Stachel Kenneth J.
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