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公开(公告)号:ZA744322B
公开(公告)日:1975-08-27
申请号:ZA744322
申请日:1974-07-04
Applicant: BASF AG
Inventor: WITTMANN O , PETERSEN H , MAYER J , EISELE W
IPC: C08G12/00 , B27N3/02 , C08G12/12 , C09J161/20 , C09J161/24 , C08G9/10
Abstract: Condensates containing urea and formaldehyde in a molar ratio of from 1:2.5 to 1:4.5 are converted into wood glue by allowing the viscosity to increase at a pH of from 1 to 3 and at only slightly elevated temperature and then adding urea at a pH of 7 to 9.
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公开(公告)号:SE7415552A
公开(公告)日:1975-06-16
申请号:SE7415552
申请日:1974-12-11
Applicant: BASF AG
CPC classification number: D21H27/26 , C09D167/06 , D21H19/26 , D21H19/28 , C08L67/06 , C08L2666/14
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公开(公告)号:DK361374A
公开(公告)日:1975-03-03
申请号:DK361374
申请日:1974-07-05
Applicant: BASF AG
Inventor: EISELE W , PETERSEN H , MAYER J , WITTMANN O
IPC: C08G12/00 , B27N3/02 , C08G12/12 , C09J161/20 , C09J161/24 , C09J
Abstract: Condensates containing urea and formaldehyde in a molar ratio of from 1:2.5 to 1:4.5 are converted into wood glue by allowing the viscosity to increase at a pH of from 1 to 3 and at only slightly elevated temperature and then adding urea at a pH of 7 to 9.
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公开(公告)号:SE396759B
公开(公告)日:1977-10-03
申请号:SE7303650
申请日:1973-03-15
Applicant: BASF AG
Inventor: EISELE W , LELGEMANN L , MAGERKURTH B , PETERSEN H
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