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公开(公告)号:DE2243857A1
公开(公告)日:1974-04-04
申请号:DE2243857
申请日:1972-09-07
Applicant: BASF AG
Inventor: ERHARDT KLAUS DR , PETERSEN HARRO DR , TEUTHER WOLFGANG DR , WITTMANN OTTO , BRUNNMUELLER FRITZ DR , GRABOWSKY OTTO DR , MAYER JOHANN DR , LENZ JOHANN
Abstract: A urea-formaldehyde resin is formed by (a) reacting formaldehyde and urea of an initial molar ratio of >=3, in an aqs. soln., pH 3, until 1% of the urea has reacted to form urone gps., or by reacting as above during a time t = 10pH-2 (between 90-100 degrees C), (b) adding urea to the obtd. prod., at pH=3, such that the polar ratio HCHO:urea is 2-2.75 and condensing until the aqs. soln. of the condensate is no longer indefinitely dilutable in water at room temp., and (c) concentrating or evaporating the soln. formed to give a prod. contg. HCHO and urea in a molar ratio 1-2.75. The resin is used partic. in the mfr. of plywood and has a reduced tendency to evolve free HCHO.
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112.
公开(公告)号:CA907512A
公开(公告)日:1972-08-15
申请号:CA907512D
Applicant: BASF AG
Inventor: CLAD WERNER H , SANDER BRUNO , WITTMANN OTTO , POMMER ERNST-HEINRICH
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公开(公告)号:FR1430514A
公开(公告)日:1966-03-04
申请号:FR8226
申请日:1965-03-06
Applicant: BASF AG
Inventor: MUELLER HERBERT , SEIBT HUBERTUS , KUEHN ERICH , WITTMANN OTTO
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公开(公告)号:DE59602069D1
公开(公告)日:1999-07-08
申请号:DE59602069
申请日:1996-09-16
Applicant: BASF AG
Inventor: UTECHT JENS DR , NIESSNER MANFRED DR , KIRCHGAESSNER UWE DR , WITTMANN OTTO , DECHER JAKOB , JAECKH CHRISTOF DR , MEIER ANTON DR
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公开(公告)号:DE59401195D1
公开(公告)日:1997-01-16
申请号:DE59401195
申请日:1994-09-01
Applicant: BASF AG
Inventor: WITTMANN OTTO
IPC: B29C33/60 , C08L91/06 , C09D191/06
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公开(公告)号:DE19525300A1
公开(公告)日:1997-01-16
申请号:DE19525300
申请日:1995-07-12
Applicant: BASF AG
Inventor: WITTMANN OTTO , KIRCHGAESNER UWE DR , DENZINGER WALTER , JAECKH CHRISTOF DR , DECHER JAKOB
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公开(公告)号:AT141356T
公开(公告)日:1996-08-15
申请号:AT93118978
申请日:1993-11-25
Applicant: BASF AG
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公开(公告)号:DE58907322D1
公开(公告)日:1994-05-05
申请号:DE58907322
申请日:1989-04-22
Applicant: BASF AG
Inventor: BUSSE GERD , DECHER JAKOB , EISELE WOLFGANG DR , HAEUSSLER EDGAR , WITTMANN OTTO
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119.
公开(公告)号:AT103618T
公开(公告)日:1994-04-15
申请号:AT89107284
申请日:1989-04-22
Applicant: BASF AG
Inventor: BUSSE GERD , DECHER JAKOB , EISELE WOLFGANG DR , HAEUSSLER EDGAR , WITTMANN OTTO
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公开(公告)号:ES2042937T3
公开(公告)日:1993-12-16
申请号:ES89120523
申请日:1989-11-06
Applicant: BASF AG
Inventor: EISELE WOLFGANG DR , ETLING HANS DR , PFALZGRAF WALTER , PITTEROFF WALTER DR , WITTMANN OTTO
IPC: C08K5/21 , C08L33/06 , C08L61/32 , C09D133/06 , C09D161/32
Abstract: The present invention relates to thermosetting aqueous synthetic resin mixtures for coating wooden materials based on etherified melamine/formaldehyde condensation products and aqueous synthetic resin dispersions, and to a process for preparing these mixtures and the use for coating wooden materials.
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