公开(公告)号：DE2730017A1

公开(公告)日：1979-01-18

申请号：DE2730017

申请日：1977-07-02

Applicant: BASF AG

Inventor： STRAUB FERDINAND DIPL CHEM DR ,  SPOOR HERBERT DIPL CHEM DR ,  SCHENCK HANS-UWE DIPL CHEM ,  SCHWARZ WOLFGANG DIPL CHEM DR

IPC: C08F2/00 ,  C08F2/04 ,  C08F4/00 ,  C08F4/28 ,  C08F4/32 ,  C08F6/00 ,  C08F6/06 ,  C08F6/10 ,  C08F26/00 ,  C08F26/06 ,  C08F26/10 ,  C08F218/00 ,  C08F218/02 ,  C08F218/04 ,  C08F218/08 ,  C08F226/06 ,  C08F226/10 ,  C08F263/02 ,  C08F271/00

Abstract: A process for reducing the residual monomer content of a copolymer prepared by copolymerizing vinyl esters and N-vinyl-lactams in a solvent in the presence of a free radical polymerization initiator. Following the main polymerization, from 0.05 to 0.5% by weight, based on the monomers employed, of di-tert.-butyl peroxide, di-tert.-amyl peroxide, dicumyl peroxide, 2,5-dimethyl-2,5-bis-(tert.-butylperoxy)-hexane, 2,2-bis-(tert.-butylperoxy)-butane, 1,1-bis-(tert.-butylperoxy)-3,3,5-trimethylcyclohexane, 4,4-di-(tert.-butylperoxy)-butyl valerate, or a mixture of these, is added to the reaction mixture and the after-polymerization is carried out at a higher temperature than the main polymerization.

公开(公告)号：DE2942657A1

公开(公告)日：1981-04-30

申请号：DE2942657

申请日：1979-10-22

Applicant: BASF AG

Inventor： STRAUB FERDINAND DIPL CHEM DR ,  HARTMANN HEINRICH DIPL CHEM DR ,  NAEGELE PAUL ING GRAD ,  SEIB KARL DIPL CHEM DR

IPC: C08F26/00 ,  C08F8/00 ,  C08F26/10 ,  C08J3/05 ,  C08L39/00 ,  C08J3/24

Abstract: A process for the preparation of high-viscosity polyvinylpyrrolidone, wherein an aqueous polyvinylpyrrolidone solution is subjected to a heat treatment in the presence of a water-insoluble peroxide and in the absence of oxygen, and thickeners containing the polyvinylpyrrolidone thus prepared.

公开(公告)号：DE2831335A1

公开(公告)日：1980-02-07

申请号：DE2831335

申请日：1978-07-17

Applicant: BASF AG

Inventor： STRAUB FERDINAND DIPL CHEM DR ,  SPOOR HERBERT DIPL CHEM DR ,  CORDES CLAUS DIPL CHEM DR

IPC: C08F8/00 ,  C08F8/04 ,  C08G18/62 ,  C08F126/10

Abstract: A process for the preparation of modified poly-N-vinylpyrrolid-2-one containing two identical reactive groups, wherein polyvinylpyrrolidone is treated with complex hydrides, with or without further reaction of the modified polyvinylpyrrolidone with a reactive bifunctional compound, to give a polymer which has a molecular weight at least 2.5 times as great as that of the starting polymer.

公开(公告)号：DE3201193A1

公开(公告)日：1983-07-28

申请号：DE3201193

申请日：1982-01-16

Applicant: BASF AG

Inventor： AYDIN ORAL DIPL CHEM DR ,  STRAUB FERDINAND DIPL CHEM DR ,  FICKEISEN PETER DIPL ING

IPC: C08L39/00 ,  C08L1/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00 ,  C09D5/02 ,  C09D137/00 ,  C09D157/00 ,  B05D7/26 ,  C09J7/04

公开(公告)号：DE2759150A1

公开(公告)日：1979-07-12

申请号：DE2759150

申请日：1977-12-31

Applicant: BASF AG

Inventor： STRAUB FERDINAND DIPL CHEM DR ,  SCHENCK HANS-UWE DIPL CHEM DR ,  LANG SIEGFRIED DR ,  BRODE EGON DIPL CHEM DR

IPC: C08F26/00 ,  A61K31/40 ,  A61K31/79 ,  A61P7/08 ,  C08F8/00 ,  C08F26/10 ,  C08F126/10 ,  C08G18/62 ,  C08G18/63 ,  C08G63/16 ,  C08G69/26

Abstract: High molecular weight products based on N-vinylpyrrolidone, in which blocks of vinylpyrrolidone polymers or vinylpyrrolidone copolymers are linked by connecting units carrying ester, amide, urethane or urea groups, as a result of which these high molecular weight products are biodegradable and may be used as plasma substitutes, and the plasma substitutes thus obtained.

公开(公告)号：DE3001013A1

公开(公告)日：1981-07-23

申请号：DE3001013

申请日：1980-01-12

Applicant: BASF AG

Inventor： STRAUB FERDINAND DIPL CHEM DR ,  LANG SIEGFRIED DR ,  ROSKE ECKHARD

IPC: C08G18/00 ,  A61K9/08 ,  A61K31/79 ,  A61P7/08 ,  C08G18/62 ,  C08G18/77 ,  C08F8/30

Abstract: Polymers which due to their physiological compatibility may be used in plasma substitutes and which essentially contain vinylpyrrolidone and alpha , omega -diisocyanato-alkanecarboxylic acid esters as structural units, their preparation, and plasma substitutes containing such polymers.

公开(公告)号：DE2941387A1

公开(公告)日：1981-05-07

申请号：DE2941387

申请日：1979-10-12

Applicant: BASF AG

Inventor： DENZINGER WALTER ,  STRAUB FERDINAND DIPL CHEM DR ,  HARTMANN HEINRICH DIPL CHEM DR

IPC: C08F8/00 ,  A01N59/12 ,  C08F8/04 ,  C08F8/20 ,  C08F126/10 ,  C08F8/22 ,  A61K31/79 ,  A61K33/18

Abstract: A process for the preparation of polyvinylpyrrolidone-iodine, wherein a polyvinylpyrrolidone which has been subjected to hydrogenation is reacted with iodine in a conventional manner. The novel process is particularly suitable for use with low molecular weight polyvinylpyrrolidone, having a K value of from 10 to 20.