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公开(公告)号:BR7402287D0
公开(公告)日:1974-11-19
申请号:BR228774
申请日:1974-03-22
Applicant: BASF AG
Inventor: NINTZ E , STAHNECKER E , SCHICK R , HORACEK H
Abstract: Particulate, expandable styrene polymers containing a flame-proofing organic halo compound as expanding agent and also a mixture of from 2.5 to 30% by weight of a hydrocarbon of from 3 to 6 carbon atoms and from 97.5 to 70% by weight of monofluorotrichloromethane, based on the total weight of said mixture serving as expanding agent, show good processability and exhibit self-extinguishing properties even during processing.
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公开(公告)号:SE7413688A
公开(公告)日:1975-05-05
申请号:SE7413688
申请日:1974-10-30
Applicant: BASF AG
Inventor: BECK G , ZUERN L , STAHNECKER E
CPC classification number: B60C17/06 , B60C17/065
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公开(公告)号:IN137644B
公开(公告)日:1975-08-30
申请号:IN1771CA1973
申请日:1973-07-31
Applicant: BASF AG
Inventor: STAHNECKER E , BURGER H , ZUERN L , BUCHHOLZ K
IPC: C08F7/04
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公开(公告)号:BR7302843D0
公开(公告)日:1974-07-18
申请号:BR284373
申请日:1973-04-18
Applicant: BASF AG
Inventor: STAHNECKER E , MOELLER R , ZUERN L , FRIED M
Abstract: Solutions of N-vinylpyrrolidone polymers can be prepared with particular advantage by polymerization of N-vinylpyrrolidone in an aqueous medium by adding the polymerization catalyst in portions or continuously to the monomer solution in the form of a finely divided suspension in an aqueous solution of N-vinylpyrrolidone polymer.
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