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61.
公开(公告)号:US2581388A
公开(公告)日:1952-01-08
申请号:US8913949
申请日:1949-04-22
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C08G8/28
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62.Esters of alpha-halogen carboxy acids with oxyalkylated phenolaldehyde resins 失效
Title translation: 具有烷氧基化酚醛树脂的α-卤代羧酸的酯公开(公告)号:US2581382A
公开(公告)日:1952-01-08
申请号:US6508148
申请日:1948-12-13
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C08G8/28
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63.Esters of certain oxyalkylated phenol-aldehyde resins with polyhydric alcohol-polybasic carboxy acid acyloxy acid esters 失效
Title translation: 某些烷氧基化酚醛树脂与多元醇 - 多元羧酸酰氧基酯的酯公开(公告)号:US2581381A
公开(公告)日:1952-01-08
申请号:US6446548
申请日:1948-12-10
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C08G8/28
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64.Esters of oxyalkylated phenol aldehyde resins with polyhydric alcohol-polybasic carboxy acid-monocarboxy acid esters 失效
Title translation: 具有多元醇 - 多元羧酸 - 单羧酸酯的烷氧基化酚醛树脂的酯公开(公告)号:US2581380A
公开(公告)日:1952-01-08
申请号:US6446348
申请日:1948-12-10
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C08G8/28
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65.
公开(公告)号:US2581373A
公开(公告)日:1952-01-08
申请号:US6444748
申请日:1948-12-10
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C08G8/28
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公开(公告)号:US2576002A
公开(公告)日:1951-11-20
申请号:US63097245
申请日:1945-11-26
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C07D213/20 , C10G33/00
CPC classification number: C07D213/20 , C10G33/00
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67.Process for breaking petroleum emulsions using certain hydroaromatic analogues of certain hydrophile hydroxylated synthetic products 失效
Title translation: 使用某些亲水羟基化合成产物的某些水性芳族化合物来破碎石油乳液的方法公开(公告)号:US2574536A
公开(公告)日:1951-11-13
申请号:US6444348
申请日:1948-12-08
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C10G33/04
CPC classification number: C10G33/04
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公开(公告)号:US2571118A
公开(公告)日:1951-10-16
申请号:US13729350
申请日:1950-01-06
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C08G8/24
CPC classification number: C08G8/24
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公开(公告)号:US2571117A
公开(公告)日:1951-10-16
申请号:US13729250
申请日:1950-01-06
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
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公开(公告)号:US2571116A
公开(公告)日:1951-10-16
申请号:US13729150
申请日:1950-01-06
Applicant: PETROLITE CORP
Inventor: DE GROOTE MELVIN , BERNHARD KEISER
IPC: C10G33/04
CPC classification number: C10G33/04
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