公开(公告)号：US3607852A

公开(公告)日：1971-09-21

申请号：US3607852D

申请日：1969-03-06

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED ,  ROH GERHARD ,  SEIBEL PETER

IPC: C08F18/04 ,  C08F3/54

CPC classification number: C08F18/04

Abstract: A process for the solution polymerization of a vinyl ester in the presence of an alcohol and a free radical polymerization catalyst is shown. Water in controlled amounts is added to the feed mixture of monomer, alcohol and catalyst prior to their entering the first polymerization zone.

公开(公告)号：CA1150447A

公开(公告)日：1983-07-19

申请号：CA331243

申请日：1979-07-05

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED

IPC: C08F26/00 ,  C08F2/00 ,  C08F2/14 ,  C08F4/00 ,  C08F4/04 ,  C08F4/32 ,  C08F4/34 ,  C08F26/02 ,  C08F126/02 ,  C08F226/02 ,  C08F2/06

Abstract: Tertiary N-vinylamides are polymerized, optionally together with further monomers, in the presence of aliphatic hydrocarbons, at a temperature or from 0 to 150.degree.C using two types of initiator one of which is insoluble and the other soluble in the hydrocarbon used. The pulverulent or granular polymer obtained has a diminished content of residual monomer. It is suitable as protective colloid or dispersing agent for emulsion or suspension polymerizations.

公开(公告)号：FI63951B

公开(公告)日：1983-05-31

申请号：FI783312

申请日：1978-10-31

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED ,  SEIBEL PETER

IPC: C08F6/00 ,  C08F2/44 ,  C08F6/10 ,  C08F218/00 ,  C08F218/02 ,  C08F218/04 ,  C08F220/04 ,  A61K7/11

Abstract: Copolymers of vinyl esters and crotonic acid are commonly prepared by polymerizing the monomers in bulk or in solution by means of a radical-forming initiator in the presence of a regulator. The polymers should be free from residual monomers and impurities as far as possible. This may be realized in that upon completion of the polymerization the unreacted monomers and other volatile impurities are removed from the reaction mixture by distillation. For this purpose, the use of an entrainer is advantageous. The copolymers are suitable as starting materials for adhesives and hair lacquers, hair setting lotions as well as hair sprays.

公开(公告)号：AU4124278A

公开(公告)日：1979-05-17

申请号：AU4124278

申请日：1978-11-01

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED ,  SEIBEL PETER

IPC: C08F6/00 ,  C08F2/44 ,  C08F6/10 ,  C08F218/00 ,  C08F218/02 ,  C08F218/04 ,  C08F220/04 ,  C08F218/08 ,  C08F2/38 ,  C08F283/06

Abstract: Copolymers of vinyl esters and crotonic acid are commonly prepared by polymerizing the monomers in bulk or in solution by means of a radical-forming initiator in the presence of a regulator. The polymers should be free from residual monomers and impurities as far as possible. This may be realized in that upon completion of the polymerization the unreacted monomers and other volatile impurities are removed from the reaction mixture by distillation. For this purpose, the use of an entrainer is advantageous. The copolymers are suitable as starting materials for adhesives and hair lacquers, hair setting lotions as well as hair sprays.

公开(公告)号：FI783312A

公开(公告)日：1979-05-03

申请号：FI783312

申请日：1978-10-31

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED ,  SEIBEL PETER

IPC: C08F6/00 ,  C08F2/44 ,  C08F6/10 ,  C08F218/00 ,  C08F218/02 ,  C08F218/04 ,  C08F220/04 ,  C08F

Abstract: Copolymers of vinyl esters and crotonic acid are commonly prepared by polymerizing the monomers in bulk or in solution by means of a radical-forming initiator in the presence of a regulator. The polymers should be free from residual monomers and impurities as far as possible. This may be realized in that upon completion of the polymerization the unreacted monomers and other volatile impurities are removed from the reaction mixture by distillation. For this purpose, the use of an entrainer is advantageous. The copolymers are suitable as starting materials for adhesives and hair lacquers, hair setting lotions as well as hair sprays.

公开(公告)号：DK228784A

公开(公告)日：1984-11-10

申请号：DK228784

申请日：1984-05-08

Applicant: HOECHST AG

Inventor： ZIMMERMANN WOLFGANG ,  EICHHORN WILFRIED

IPC: C08F8/00 ,  C08L29/14 ,  C08F8/28 ,  C08F8/34 ,  C08F8/36 ,  C08F8/44 ,  C08F16/00 ,  C08F16/02 ,  C08F16/06 ,  C08J5/18 ,  C08L29/00 ,  C09D129/14 ,  C09K23/52 ,  D06M13/02 ,  D06M13/137 ,  D06M15/333 ,  C08F

Abstract: The process involves partial acetalisation of a polyvinyl alcohol (PVAL) in an aqueous medium using an aldehyde containing sulphonic acid groups, by reacting up to a maximum of 10 mol-% of the hydroxyl groups of the PVAL, based on the PVAL, with a (C3-C7)-alkanal-3- sulphonic acid, and converting the reaction product into water-soluble salts, if desired using bases. The PVAL derivatives prepared in this way, which are soluble in aqueous alkalis, are used as textile sizes, for the production of cast films, sheeting, for coating substrates or as an emulsifier and/or dispersant and/or as a protective colloid.

公开(公告)号：FI65442C

公开(公告)日：1984-05-10

申请号：FI792116

申请日：1979-07-04

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED

IPC: C08F26/00 ,  C08F2/00 ,  C08F2/14 ,  C08F4/00 ,  C08F4/04 ,  C08F4/32 ,  C08F4/34 ,  C08F26/02 ,  C08F126/02 ,  C08F226/02

Abstract: A tertiary N-vinylamide is polymerized, optionally together with further monomers, in the presence of an aliphatic hydrocarbon, at a temperature of from 0 DEG to 150 DEG C., using two types of initiator one of which is insoluble and the other soluble in the hydrocarbon used. The pulverulent or granular polymer obtained has a diminished content of residual monomer. It is suitable as protective colloid or dispersing agent for emulsion or suspension polymerizations.

公开(公告)号：MX149495A

公开(公告)日：1983-11-15

申请号：MX17545278

申请日：1978-10-31

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED ,  SEIBEL PETER

IPC: C08F6/00 ,  C08F2/44 ,  C08F6/10 ,  C08F218/00 ,  C08F218/02 ,  C08F218/04 ,  C08F220/04 ,  C08F18/04

Abstract: Copolymers of vinyl esters and crotonic acid are commonly prepared by polymerizing the monomers in bulk or in solution by means of a radical-forming initiator in the presence of a regulator. The polymers should be free from residual monomers and impurities as far as possible. This may be realized in that upon completion of the polymerization the unreacted monomers and other volatile impurities are removed from the reaction mixture by distillation. For this purpose, the use of an entrainer is advantageous. The copolymers are suitable as starting materials for adhesives and hair lacquers, hair setting lotions as well as hair sprays.

公开(公告)号：DD144782A5

公开(公告)日：1980-11-05

申请号：DD21410879

申请日：1979-07-04

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED

IPC: C08F26/00 ,  C08F2/00 ,  C08F2/14 ,  C08F4/00 ,  C08F4/04 ,  C08F4/32 ,  C08F4/34 ,  C08F26/02 ,  C08F126/02 ,  C08F226/02 ,  C08F120/54

Abstract: A tertiary N-vinylamide is polymerized, optionally together with further monomers, in the presence of an aliphatic hydrocarbon, at a temperature of from 0 DEG to 150 DEG C., using two types of initiator one of which is insoluble and the other soluble in the hydrocarbon used. The pulverulent or granular polymer obtained has a diminished content of residual monomer. It is suitable as protective colloid or dispersing agent for emulsion or suspension polymerizations.

公开(公告)号：NO792241L

公开(公告)日：1980-01-08

申请号：NO792241

申请日：1979-07-05

Applicant: HOECHST AG

Inventor： EICHHORN WILFRIED

IPC: C08F26/00 ,  C08F2/00 ,  C08F2/14 ,  C08F4/00 ,  C08F4/04 ,  C08F4/32 ,  C08F4/34 ,  C08F26/02 ,  C08F126/02 ,  C08F226/02 ,  C08F

Abstract: A tertiary N-vinylamide is polymerized, optionally together with further monomers, in the presence of an aliphatic hydrocarbon, at a temperature of from 0 DEG to 150 DEG C., using two types of initiator one of which is insoluble and the other soluble in the hydrocarbon used. The pulverulent or granular polymer obtained has a diminished content of residual monomer. It is suitable as protective colloid or dispersing agent for emulsion or suspension polymerizations.