公开(公告)号：SE7502462L

公开(公告)日：1975-09-08

申请号：SE7502462

申请日：1975-03-05

Applicant: HOECHST AG

Inventor： SCHINDLER H ,  ZIMMERMANN W

IPC: C08J9/28 ,  C08J9/00

Abstract: Starch products which were hitherto used as pore-forming substances in the manufacture of polyvinyl alcohol acetal sponges are replaced by polyethylene glycol or polyacrylamide. This results in a more uniform distribution of pore size, lower shrinkage of the sponge material during the acetalization, and easier washing of the sponge after the acetalization.

公开(公告)号：SE7415980A

公开(公告)日：1975-06-23

申请号：SE7415980

申请日：1974-12-19

Applicant: HOECHST AG

Inventor： HARREUS A ,  ZIMMERMANN W

IPC: C08F8/00 ,  A61K9/00 ,  A61K9/48 ,  C08F8/12 ,  C08F283/00 ,  C08F283/06

CPC classification number: A61K9/4816

公开(公告)号：ZA731879B

公开(公告)日：1973-12-19

申请号：ZA731879

申请日：1973-03-19

Applicant: HOECHST AG

Inventor： MATSCHKE K ,  RAUTERKUS K ,  SEIP D ,  ZIMMERMANN W

IPC: C08L23/08 ,  C08F261/04 ,  C08J3/12 ,  C08L23/00 ,  C08L31/04 ,  C08F

Abstract: Vinyl acetate/ethylene copolymer powders are obtained by spray-drying of the corresponding aqueous polymer dispersions while simultaneously adding finely divided inorganic materials as anti-caking agents. The polymer powders thus obtained have an excellent storage stability, are easily dispersible in water and yield plastics mortars of high water resistance and plasterings made therefrom which are free from cracks.

公开(公告)号：BR8106680A

公开(公告)日：1982-06-29

申请号：BR8106680

申请日：1981-10-16

Applicant: HOECHST AG

Inventor： ZIMMERMANN W ,  HARREUS A ,  GUTTE R

IPC: B01D53/22 ,  A01F25/13 ,  A23F3/22 ,  A23F5/28 ,  A23L3/00 ,  A23L3/3418 ,  A23L27/14 ,  A24B1/02 ,  A61G15/00 ,  A61K36/00 ,  A61L15/24 ,  B01D53/26 ,  B01D61/00 ,  B01D67/00 ,  B01D71/38 ,  B32B7/02 ,  B32B27/12 ,  B32B27/30 ,  B32B33/00 ,  B65D65/00 ,  B65D65/38 ,  C08L29/00 ,  C08L29/02 ,  D06M15/333 ,  D06N3/04 ,  F24F6/00 ,  F26B5/00 ,  B01D13/00

Abstract: The water content of a material, which tends to either absorb water or to release water, is changed with the aid of a film, which at least partially separates the material from the adjacent space and is impermeable to liquid water but permeable to gaseous water. Polyvinyl alcohol with a particular degree of polymerization and degree of hydrolysis is used as the film material. The film can be mechanically or chemically after-treated. The moistening or de-moistening of the material, which is solid, liquid or gaseous, is effected, utilizing a water vapor pressure gradient, under very mild conditions.

公开(公告)号：DK203981A

公开(公告)日：1981-11-10

申请号：DK203981

申请日：1981-05-07

Applicant: HOECHST AG

Inventor： ZIMMERMANN W ,  HARREUS A

IPC: C08F261/04 ,  C08L51/08 ,  C08L

Abstract: A molding composition on the basis of polyvinyl alcohol substantially consists of a partially solvolyzed graft copolymer of a vinyl ester and a polyethylene glycol or of a mixture of such graft copolymer with a partially solvolyzed polyvinyl ester as well as of water and optionally a polyhydric alkanol. The composition is obtained by mixing the granular polymers used in each case with the other components. It is water-soluble, flowable and thermoplastically workable and is suitable for the preparation of any shaped articles, especially sheets.

公开(公告)号：SE411167B

公开(公告)日：1979-12-10

申请号：SE7415980

申请日：1974-12-19

Applicant: HOECHST AG

Inventor： HARREUS A ,  ZIMMERMANN W

IPC: C08F8/00 ,  A61K9/00 ,  A61K9/48 ,  C08F8/12 ,  C08F283/00 ,  C08F283/06 ,  A61K47/00

Abstract: An encapsulating material for drugs consisting of a modified polyvinyl alcohol which is a partially hydrolized graft copolymer of vinyl acetate on polyethylene oxide.

公开(公告)号：DK118979A

公开(公告)日：1979-09-24

申请号：DK118979

申请日：1979-03-22

Applicant: HOECHST AG

Inventor： ZIMMERMANN W ,  HARREUS A

IPC: C08L29/00 ,  C08J3/12 ,  C08J3/16 ,  C08J3/18 ,  C08J3/20 ,  C08K5/00 ,  C08K5/05 ,  C08L29/02 ,  C08L29/04 ,  C08J

公开(公告)号：SE403792B

公开(公告)日：1978-09-04

申请号：SE7304110

申请日：1973-03-23

Applicant: HOECHST AG

Inventor： MATSCHKE K ,  RAUTERKUS K J ,  SEIP D ,  ZIMMERMANN W

IPC: C08L23/08 ,  C08F261/04 ,  C08J3/12 ,  C08L23/00 ,  C08L31/04

Abstract: Vinyl acetate/ethylene copolymer powders are obtained by spray-drying of the corresponding aqueous polymer dispersions while simultaneously adding finely divided inorganic materials as anti-caking agents. The polymer powders thus obtained have an excellent storage stability, are easily dispersible in water and yield plastics mortars of high water resistance and plasterings made therefrom which are free from cracks.

公开(公告)号：DK134821B

公开(公告)日：1977-01-24

申请号：DK162273

申请日：1973-03-23

Applicant: HOECHST AG

Inventor： MATSCHKE K ,  RAUTERKUS K J ,  SEIP D ,  ZIMMERMANN W

IPC: C08L23/08 ,  C08F261/04 ,  C08J3/12 ,  C08L23/00 ,  C08L31/04

Abstract: Vinyl acetate/ethylene copolymer powders are obtained by spray-drying of the corresponding aqueous polymer dispersions while simultaneously adding finely divided inorganic materials as anti-caking agents. The polymer powders thus obtained have an excellent storage stability, are easily dispersible in water and yield plastics mortars of high water resistance and plasterings made therefrom which are free from cracks.

公开(公告)号：NO762332A

公开(公告)日：1977-01-05

申请号：NO762332

申请日：1976-07-02

Applicant: HOECHST AG

Inventor： ZIMMERMANN W ,  SCHINDLER H

IPC: C08F8/00 ,  C08F8/42 ,  C08F

CPC classification number: C08F8/42 ,  C08F116/06