公开(公告)号：DE3210754A1

公开(公告)日：1983-10-06

申请号：DE3210754

申请日：1982-03-24

Applicant: BASF AG

Inventor： HILDENBRAND PETER DIPL CHEM DR ,  STUTZ HERBERT DIPL CHEM DR ,  MUELLER-MALL RUDOLF DIPL CHEM

IPC: C08F2/22 ,  C08F2/26 ,  C08F2/44 ,  C08F4/34 ,  C08F4/40 ,  C08F14/06 ,  C08F20/10

Abstract: The invention relates to a process for the batch polymerisation of a) vinyl chloride or acrylates having 1 to 10 carbon atoms in the alcohol radical, under conventional conditions of pressure and temperature, in the presence of b) water, c) a saturated or unsaturated fatty acid having 10 to 30 carbon atoms, and d) a water-soluble inorganic initiator, where a reaction batch is first prepared from at least a part amount of components a) and d) and the entire amount of components b) and c) and of ammonium carbamate in the necessary amount, and the polymerisation is then initiated. The PVC polymers prepared in this way are used in particular for the preparation of plastisols.

公开(公告)号：DE2842719A1

公开(公告)日：1980-04-10

申请号：DE2842719

申请日：1978-09-30

Applicant: BASF AG

Inventor： MUELLER-MALL RUDOLF DIPL CHEM ,  WENDEL KURT DIPL CHEM DR ,  GEELHAAR HANS JOACHIM DIPL CHE ,  MELAN MICHAEL DIPL CHEM DR

IPC: C08F2/00 ,  C08F2/22 ,  C08F2/24 ,  C08F2/30 ,  C08F2/38 ,  C08F20/12 ,  C08F20/18

Abstract: Aqueous polyacrylate dispersions having improved flow characteristics are prepared by polymerizing esters of acrylic acid and/or methacrylic acid and alkanols of 1 to 10 carbon atoms, with or without admixture of styrene and/or vinyl esters and/or water-soluble monoolefinically unsaturated comonomers (the monomer feed being in the form of an emulsion), in aqueous emulsion in the presence of a free radical polymerization initiator, a protective colloid, a nonionic emulsifier and a regulator, at least a part of the protective colloid being introduced into an aqueous initial charge, and a water-soluble regulator being employed in the initial charge and in the feed.