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1.Process for tanning leather with waterinsoluble condensation product of a phenol, formaldehyde, and carboxylic acid 失效
Title translation: 用苯酚,甲醛和羧酸的水不溶性缩合产物鞣皮革的方法公开(公告)号:US2955013A
公开(公告)日:1960-10-04
申请号:US75869258
申请日:1958-09-03
Applicant: BAYER AG
Inventor: MARTIN MEISTER , WOLFHARD LUCK , GUSTAV MAUTHE
IPC: C14C3/18
CPC classification number: C14C3/18
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2.Process of retanning leather with condensation products of phenols, amines, and formaldehyde 失效
Title translation: 用酚,胺和甲醛的缩合产物对皮革进行复鞣的方法公开(公告)号:US2890095A
公开(公告)日:1959-06-09
申请号:US41671354
申请日:1954-03-16
Applicant: BAYER AG
Inventor: MARTIN MEISTER , GUSTAV MAUTHE , KURT FABER
IPC: C14C3/18
CPC classification number: C14C3/18
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公开(公告)号:US2798043A
公开(公告)日:1957-07-02
申请号:US49453655
申请日:1955-03-15
Applicant: BAYER AG
Inventor: MARTIN MEISTER , BRUNO ZORN , GUSTAV MAUTHE
IPC: C09K8/20
CPC classification number: C09K8/203
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4.Process of retanning leather with a condensation product of sulfones of monohydric phenols, non-aromatic amines and formaldehyde 失效
Title translation: 用一元酚,非芳香胺和甲醛的砜的缩合产物复鞣革的方法公开(公告)号:US2809088A
公开(公告)日:1957-10-08
申请号:US36661253
申请日:1953-07-07
Applicant: BAYER AG
Inventor: MARTIN MEISTER , GUSTAV MAUTHE
IPC: C14C3/28
CPC classification number: C14C3/28
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公开(公告)号:US3242146A
公开(公告)日:1966-03-22
申请号:US15943061
申请日:1961-12-14
Applicant: BAYER AG
Inventor: MARTIN MEISTER
CPC classification number: C14C3/02 , C08F12/30 , Y10S516/03 , Y10S516/909
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公开(公告)号:US2801986A
公开(公告)日:1957-08-06
申请号:US33148653
申请日:1953-01-15
Applicant: BAYER AG
Inventor: MARTIN MEISTER , GUSTAV MAUTHE
IPC: C14C3/18
CPC classification number: C14C3/18
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