公开(公告)号：GB1039383A

公开(公告)日：1966-08-17

申请号：GB2295363

申请日：1963-06-10

Applicant: BASF AG

Inventor： RUNKEL WALTER ,  REFFERT RUDI WILHELM

IPC: C08F214/08

Abstract: Copolymers of acrylonitrile and preponderant amounts of vinylidene chloride are prepared by copolymerizing the monomers in aqueous emulsion in the presence of 0.5 to 10% by weight, based on the total monomer, of dimethyl formamide. A minor proportion of one or more other monomers, e.g. vinyl sulphonic acid, acrylic acid or maleic anhydride, may also be present, and polymerization may be effected in the presence of hydrogen peroxide or potassium persulphate, or mixtures thereof with formaldehyde sulphoxylate, sodium bisulphite or ascorbic acid; and emulsifiers, e.g. alkali metal salts of sulphonic and fatty acids. In an example, vinylidene chloride, acrylonitrile and acrylic acid are copolymerized in an aqueous medium in the presence of potassium persulphate, ethylhexyl thioglycollate, sodium bisulphite and dimethyl formamide to give a copolymer readily soluble in toluene/methyl ethyl ketone mixtures.

公开(公告)号：FR1367930A

公开(公告)日：1964-07-24

申请号：FR946037

申请日：1963-08-29

Applicant: BASF AG

Inventor： RUNKEL WALTER ,  REFFERT RUDI WILHELM

IPC: C08F214/08 ,  C08F220/44

公开(公告)号：FR1360626A

公开(公告)日：1964-05-08

申请号：FR938347

申请日：1963-06-17

Applicant: BASF AG

Inventor： RUNKEL WALTER ,  REFFERT RUDI WILHELM

IPC: C08F214/08

公开(公告)号：FR1410107A

公开(公告)日：1965-09-03

申请号：FR990008

申请日：1964-10-01

Applicant: BASF AG

Inventor： RUNKEL WALTER ,  RAPPOLD KURT ,  JECKEL GUENTER

IPC: B01F15/00

公开(公告)号：FR1307187A

公开(公告)日：1962-10-19

申请号：FR880576

申请日：1961-11-30

Applicant: BASF AG

Inventor： REFFERT RUDI WILHELM ,  RUNKEL WALTER

IPC: C08F6/16