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11.Rubbery isoolefin copolymer composition of improved cold resistance 失效
Title translation: 橡胶异烯烃共聚物组合物具有改善的耐寒性公开(公告)号:US2487278A
公开(公告)日:1949-11-08
申请号:US62495745
申请日:1945-10-26
Applicant: STANDARD OIL DEV CO
Inventor: SMITH WINTHROPE C
IPC: C08K5/523
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12.Esters of azelaic acid as plasticizers for rubberlike polymers 失效
Title translation: 壬二酸酯作为橡胶状聚合物的增塑剂公开(公告)号:US2469748A
公开(公告)日:1949-05-10
申请号:US61212345
申请日:1945-08-22
Applicant: STANDARD OIL DEV CO
Inventor: SMITH WINTHROPE C
IPC: C08K5/11
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