公开(公告)号：DE2850105A1

公开(公告)日：1980-05-29

申请号：DE2850105

申请日：1978-11-18

Applicant: BASF AG

Inventor： PYRLIK MANFRED DIPL CHEM DR

IPC: C08F2/16 ,  C08F14/06

Abstract: In an intermittent process for vinyl chloride (co)polymerisation with up to 30 wt. % copolymerisable monomer, a dispersion of water, tenside, a fatty alcohol, total quantity of monomer-soluble catalyst/s and opt. of 10 ppm (w.r.t. monomer/s) of a heavy metal salt is prepd. first, with stirring at temps. which are opt. above the chosen polymerisation temp. Vinyl chloride, or its mixt. with comonomers, is added, with stirring, to this dispersion, and the polymerisation temp. in mixt. is adjusted if necessary. Polymerisation is started on adding the water-soluble catalyst/s and is kept up to desired conversion, opt. by controlling water-soluble catalyst addn. The lattices obtd. can contain up to 50% solids, and are used for the prepn. of plastisols having a lower viscosity, esp. at high shear, than that of paste prepd. by using water-soluble initiators. Coagulate formation in latex is small. Suspension PVC proportion in latex can be increased to >50 (>80)% and emulsion PVC can be set to 50 (20)%.

公开(公告)号：DE3130552A1

公开(公告)日：1983-02-17

申请号：DE3130552

申请日：1981-08-01

Applicant: BASF AG

Inventor： PYRLIK MANFRED DIPL CHEM DR ,  DANZ ECKEHARD DIPL CHEM DR ,  KROME GERD DIPL CHEM DR ,  STAHNECKER ERHARD DIPL CHEM DR

IPC: C07C17/156 ,  C07C19/045

Abstract: Process for preparing 1,2-dichloroethane by reacting ethylene, hydrogen chloride and oxygen in the presence of a supported catalyst which is present as a fixed bed in only one reaction zone, separating off 1,2-dichloroethane and water and the gas mixture leaving the reaction zone, and returning the off-gas into the reaction zone, with fresh ethylene, hydrogen chloride and oxygen being added to the off-gas.

公开(公告)号：DE2937223A1

公开(公告)日：1981-04-02

申请号：DE2937223

申请日：1979-09-14

Applicant: BASF AG

Inventor： PYRLIK MANFRED DIPL CHEM DR

IPC: C08F2/22 ,  C08F259/04 ,  C08F14/06

公开(公告)号：DE2849087A1

公开(公告)日：1980-05-22

申请号：DE2849087

申请日：1978-11-11

Applicant: BASF AG

Inventor： PYRLIK MANFRED DIPL CHEM DR

IPC: C08F6/20 ,  C08F14/06 ,  C08F6/14