共 21 条
[12]
HOMEYER AH, 1946, Patent No. 2399118
[13]
KATTWINKEL P, 1904, BER, V37, P3223
[14]
KERN W, 1953, MAKROMOL CHEM, V11, P10
[17]
STRAIN F, 1948, Patent No. 2441298
[18]
Viard M.-J., 1953, GB Patent, Patent No. 689705
[19]
Vieles P., 1953, B SOC CHIM FR, P287
[20]
Whinfield J R, 1946, GB Patent, Patent No. [GB578079, 578079]