公开(公告)号：DE59502275D1

公开(公告)日：1998-06-25

申请号：DE59502275

申请日：1995-09-23

Applicant: BASF AG

Inventor： BAUMSTARK ROLAND ,  RUPANER ROBERT

IPC: C08F2/00 ,  C08F2/16 ,  C08F2/22 ,  C08F4/40 ,  C08F6/00 ,  C08F12/08 ,  C08F14/06 ,  C08F14/08 ,  C08F18/08 ,  C08F18/10 ,  C08F20/04 ,  C08F20/12 ,  C08F20/56

Abstract: PCT No. PCT/EP95/03770 Sec. 371 Date Apr. 3, 1997 Sec. 102(e) Date Apr. 3, 1997 PCT Filed Sep. 23, 1995 PCT Pub. No. WO96/10588 PCT Pub. Date Apr. 11, 1996A process for the preparation of an aqueous polymer emulsion, in which an aqueous emulsion of a polymer which contains at least one chemically bonded monomer having at least one ethylenically unsaturated group is produced in a manner known per se so that the total content of free monomers having at least one ethylenically unsaturated double bond, ie. monomers of this type which are not chemically bonded, in the aqueous polymer emulsion is from >0 to

公开(公告)号：NO971524L

公开(公告)日：1997-06-03

申请号：NO971524

申请日：1997-04-03

Applicant: BASF AG

Inventor： BAUMSTARK ROLAND ,  RUPANER ROBERT

IPC: C08F2/16 ,  C08F2/00 ,  C08F2/22 ,  C08F4/40 ,  C08F6/00 ,  C08F12/08 ,  C08F14/06 ,  C08F14/08 ,  C08F18/08 ,  C08F18/10 ,  C08F20/04 ,  C08F20/12 ,  C08F20/56

Abstract: PCT No. PCT/EP95/03770 Sec. 371 Date Apr. 3, 1997 Sec. 102(e) Date Apr. 3, 1997 PCT Filed Sep. 23, 1995 PCT Pub. No. WO96/10588 PCT Pub. Date Apr. 11, 1996A process for the preparation of an aqueous polymer emulsion, in which an aqueous emulsion of a polymer which contains at least one chemically bonded monomer having at least one ethylenically unsaturated group is produced in a manner known per se so that the total content of free monomers having at least one ethylenically unsaturated double bond, ie. monomers of this type which are not chemically bonded, in the aqueous polymer emulsion is from >0 to

公开(公告)号：CA2201168A1

公开(公告)日：1996-04-11

申请号：CA2201168

申请日：1995-09-23

Applicant: BASF AG

Inventor： RUPANER ROBERT ,  BAUMSTARK ROLAND

IPC: C08F2/00 ,  C08F2/16 ,  C08F2/22 ,  C08F4/40 ,  C08F6/00 ,  C08F12/08 ,  C08F14/06 ,  C08F14/08 ,  C08F18/08 ,  C08F18/10 ,  C08F20/04 ,  C08F20/12 ,  C08F20/56 ,  C08F6/14

Abstract: A process is disclosed for preparing an aqueous polymer dispersion. An aqueous dispersion of a polymer that contains at least one chemically bound, incorporated monomer containing at least one ethylenically unsaturated group, is prepared in a manner known per se, so that the aqueous polymer dispersion contains in total more than 0 but less than or 1 % by weight of free, i.e. non chemically bound monomers having an ethylenically unsaturated double bond, in relation to the polymer content of the aqueous polymer dispersion. This residual monomer content is then reduced with a radical redox initiator system containing at least one oxidising agent and at least one reducing agent. The redox initiator system contains as reducing agent a reducing agent that is present in an aqueous solution in at least two mutually balanced tautomer forms, for example the aminoiminomethanosulfinic acid and/or its salts.