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1.Process of coating a surface with a foamed polyurethane composition 失效
Title translation: 用发泡聚氨酯组合物涂覆表面的方法公开(公告)号:US2753276A
公开(公告)日:1956-07-03
申请号:US44901154
申请日:1954-08-10
Applicant: BAYER AG
Inventor: FRANZKARL BROCHHAGEN , BEZIRK KOLN , PETER HOPPE , HANS-WILLI PAFFRATH
IPC: C08J9/34
CPC classification number: C08J9/34 , C08J2375/04 , Y10T428/249953 , Y10T428/249987 , Y10T428/24999 , Y10T428/249994 , Y10T428/266 , Y10T428/269
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2.Cellular polyurethane plastics of improved pore structure and process for preparing same 失效
Title translation: 改善孔结构的蜂窝状聚氨酯塑料及其制备方法公开(公告)号:US2846408A
公开(公告)日:1958-08-05
申请号:US48266355
申请日:1955-01-18
Applicant: BAYER AG
Inventor: FRANZKARL BROCHHAGEN , BEZIRK KOLN , FRITZ SCHMIDT , PETER HOPPE
CPC classification number: C08G18/24 , C08G18/22 , C08G18/222
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