公开(公告)号：DE1804544A1

公开(公告)日：1970-06-18

申请号：DE1804544

申请日：1968-10-23

Applicant: BASF AG

Inventor： RUEMENS DR WILHELM ,  SCHREYER GEROLD ,  OSKAR WILD HEINZ ,  BERBUER HEINZ

IPC: B32B27/00 ,  C08L95/00 ,  C09D123/08 ,  B32B27/12

Abstract: A ground cover consists of (A) a top layer of a textile and (B) a bottom layer of a compacted thermoplastic which contains (i) 100 parts by wt. of a bitumen of penetration 1 to 10 mm. (DIN 1995), (ii) 45 to 150 parts of a copolymer containing 100 parts ethylene and 5 to 30 parts of an ester of acrylic acid and a C2-6 alkanol, and (iii) 100 to 500 parts of an inorganic filler of particle size 0.001 to 0.1 mm. Manufacture is easy. The cover has a good dimensional stability and can be moved easily into place. The mechanical properties are satisfactory and there is practically no migration of the bitumen from the plastic layer.

公开(公告)号：DE3723687A1

公开(公告)日：1989-01-26

申请号：DE3723687

申请日：1987-07-17

Applicant: BASF AG

Inventor： HAAS FRANZ DR ,  SCHREYER GEROLD

IPC: B01J20/30 ,  B01J20/32

Abstract: The surfaces of particulate adsorbents are consolidated by a process in which the adsorbent is impregnated with a cationic aqueous polymer solution and then treated with an anionic aqueous dispersion of a polymer having a softening point of from 60 DEG to 150 DEG C. and the materials are dried together.

公开(公告)号：DE3260084D1

公开(公告)日：1984-05-03

申请号：DE3260084

申请日：1982-07-14

Applicant: BASF AG

Inventor： BUNG RICHARD DR ,  GANS KARL ,  SCHREYER GEROLD ,  WELZEL GERHARD DR

IPC: D01D5/06 ,  D01D5/40 ,  D04H1/54

Abstract: An apparatus for the preparation of bonding fibers, especially for the production of nonwovens by a wet-lay process, wherein a polymer dispersion, containing an anionic or nonionic dispersant, and an aqueous solution, containing a dissolved cationic precipitant, are combined to cause fiber formation from precipitated polymer particles, which apparatus includes a feed funnel spaced above the bottom of a homogenization vessel with both a nozzle for introducing the polymer dispersion and a metering device for the precipitant, which are so arranged and aimed into the funnel that in co-operation with a stirrer a vortex is produced in a column of liquid in the feed funnel, and fibers are formed and broken up while passing through a turbulence chamber, located at the bottom of the funnel, and a gap into a homogenization chamber.

公开(公告)号：DE3211629A1

公开(公告)日：1983-10-06

申请号：DE3211629

申请日：1982-03-30

Applicant: BASF AG

Inventor： HAAS FRANZ DIPL CHEM DR ,  JANISCH GERHARD DIPL ING DR ,  SCHREYER GEROLD

IPC: B01J20/28 ,  B01J20/32 ,  C01B31/08 ,  B01J20/20 ,  C08J3/24 ,  C01B31/14

Abstract: A process for consolidating the surface of a granular adsorbent, wherein a water-containing adsorbent, which has taken up 25-70% by weight of the maximum possible amount of water, is heated to a temperature at which the water taken up evaporates, and is at the same time treated with an aqueous dispersion of a self-crosslinking copolymer, and the adsorbent thus coated is heated to a temperature at which the copolymer crosslinks. The coated adsorbent has virtually the same adsorption and desorption properties as the untreated adsorbent, but in contrast exhibits substantially improved abrasion resistance.