| 摘要 |
Disclosed are acid hardenable phenolic resin compositions and novolac compositions modified with about 5 to about 15 % by weight of at least one reactive diluent selected from the group consisting of benzylic alcohol, benzylic ether, ethylene glycol, 1,3-butylene glycol, monoallyl or methylallyl ethers of poly(methylol)alkanes, monoallyl ether of glycerine, allyl or methallyl glycidyl ether, N-acylated arylamine, N-acylated naphthylamine, Nsubstituted arylsulfonamide, and N-substituted arylamine. The reactive diluent can be used to improve impact resistance and flexibility of the acid hardenable phenolic resin. Preferably, the methods for modifying mix life of acid hardenable phenolic resin by use of aryl phosphite and benzylic alcohol, and methods for modifiying novolac resins, as well as methods for making the present compositions and products, such as coiled filament pipe and laminate panels, employing the compostions are also disclosed.
|
