公开(公告)号：DE2807709A1

公开(公告)日：1979-09-06

申请号：DE2807709

申请日：1978-02-23

Applicant: HOECHST AG

Inventor： WILSKI HANS DIPL CHEM DR ,  INTERTHAL WERNER DIPL CHEM DR ,  GRUBER GUENTHER DIPL CHEM DR ,  SLEBOS GERHARD

IPC: C08F120/56 ,  C09K3/00 ,  F15D1/00 ,  F15D1/02 ,  F17D1/16

Abstract: The frictional drag of aqueous liquids and suspensions in turbulent or pulsating flow is reduced by adding 1 to 1,000 ppm of a polyacryl amide or partially saponified polyacryl amide obtained in its manufacturing process in the form of an aqueous, dimensionally stable jelly which has retained its solubility in water and is capable of being cut.

公开(公告)号：DE3035040A1

公开(公告)日：1982-04-29

申请号：DE3035040

申请日：1980-09-17

Applicant: HOECHST AG

Inventor： GIRG FRIEDRICH ,  KNITTEL VOLKER DIPL CHEM DR ,  SLEBOS GERHARD

IPC: E04B2/14 ,  E04G21/20 ,  E04G21/22

Abstract: In brickwork prodn. by superimposing a thin mortar layer on highly perforated artificial bricks or blocks, opt. of light- or aerated concrete, the mortar is applied on the stone or block side bearing the perforation openings, on the passages between the perforations, and the margin. The mortar pref. contains a hydraulic or porous binder, aggregate, water, a water-soluble hydro-colloid and opt. resin binder and/or fibres. The equipment (claimed) contains a sheet-like sponge for pressing the thin mortar layer on the passages and margin of the bricks or blocks. The sponge is pref. made of foamed rubber, polyurethane, polyamide, plasticised PVC, viscose, polystyrene, or natural sponge. The brickwork is used in buildings or building units. Material loss is prevented. The mortar is easily absorbed and released by the sponge and adheres well to bricks and blocks and can reach compressive strength at least 10 N/sq.mm. after 28 days.

公开(公告)号：CA1122395A

公开(公告)日：1982-04-27

申请号：CA322075

申请日：1979-02-22

Applicant: HOECHST AG

Inventor： WILSKI HANS ,  INTERTHAL WERNER ,  GRUBER GUENTER ,  SLEBOS GERHARD

IPC: C08F120/56 ,  C09K3/00 ,  F15D1/00 ,  F15D1/02 ,  F17D1/16

Abstract: The frictional drag of aqueous liquids and suspensions in turbulent or pulsating flow is reduced by adding 1 to 1,000 ppm of a polyacryl amide or partially saponified polyacryl amide obtained in its manufacturing process in the form of an aqueous, dimensionally stable jelly which has retained its solubility in water and is capable of being cut.

公开(公告)号：DE2962316D1

公开(公告)日：1982-04-29

申请号：DE2962316

申请日：1979-02-20

Applicant: HOECHST AG

Inventor： WILSKI HANS DR ,  INTERTHAL WERNER DR ,  GRUBER GUNTER DR ,  SLEBOS GERHARD

IPC: C08F120/56 ,  C09K3/00 ,  F15D1/00 ,  F15D1/02 ,  F17D1/16

Abstract: The frictional drag of aqueous liquids and suspensions in turbulent or pulsating flow is reduced by adding 1 to 1,000 ppm of a polyacryl amide or partially saponified polyacryl amide obtained in its manufacturing process in the form of an aqueous, dimensionally stable jelly which has retained its solubility in water and is capable of being cut.