共 35 条
[11]
ELDER JA, 1971, Patent No. 2048090
[12]
FIELD GB, 1960, Patent No. 2962464
[14]
GRAY RA, 1973, Patent No. 3755227
[19]
INONE H, 1975, J APPL POLYM SCI, V19, P1939
[20]
JOHNSON AH, 1964, Patent No. 3158588