公开(公告)号：US3629101A

公开(公告)日：1971-12-21

申请号：US3629101D

申请日：1969-02-25

Applicant: HOECHST AG

Inventor： HILLE MARTIN ,  ULMSCHNEIDER DIETER

IPC: C09K8/24 ,  C10M7/00 ,  E21B21/04

CPC classification number: C09K8/24

Abstract: Water-base, clayey drilling fluids are made suitable for the drilling of deep wells by addition thereto of a copolymer of vinyl-sulfonic acid and an N-vinyl-carboxylic acid amide or Nvinyl-pyrrolidone and, optionally, a small proportion of an anion-active vinyl compound that is polymerizable under the action of free radicals.

公开(公告)号：US3597314A

公开(公告)日：1971-08-03

申请号：US3597314D

申请日：1968-11-27

Applicant: HOECHST AG

Inventor： LAUBE KARLHEINZ ,  ULMSCHNEIDER DIETER ,  NISCHWITH EHRENFRIED

IPC: D21H17/45 ,  D21D3/00 ,  D21H3/40

CPC classification number: D21H17/45

Abstract: DEWATERING OF AQUEOUS CELLULOSE FIBER SUSPENSION IN THE FORMATION OF PAPER IS IMPROVED BY ADDING TO THE SUSPENSION FROM 0.05 TO 4% OF A WATER SOLUBLE POLYMER CONSISTING ESSENTIALLY OF UNITS DERIVED FROM N-VINYL-N-METHYLFORMAMIDE, SUCH AS N-VINYL-N-METHYL FORMAMIDE, HAVING 60-100% OF THE FORMIC ACID RADICALS OF THE POLYMER SPLIT OFF BY ACID HYDROLYSIS.

公开(公告)号：US3558581A

公开(公告)日：1971-01-26

申请号：US3558581D

申请日：1968-10-11

Applicant: HOECHST AG

Inventor： BEERMANN CLAUS ,  SCHNABEL HORST ,  ULMSCHNEIDER DIETER

IPC: C08F8/00 ,  C08F3/84 ,  C08F3/86 ,  C08F3/90

CPC classification number: C08F8/12 ,  C08F2800/20 ,  C08F20/54

Abstract: POLY-N-VINLY-N-METHYLAMINE AND COPOLYMERS OF NVINYL-N-METHYLAMINE WITH COMPOUNDS POLYMERIZABLE UNDER THE ACTION OF A FREE RADICAL LIBERATING CAYALYST ARE PRODUCED BY HYDROLYSIS OF HOMO- OR COPOLYMERS OF NVINYL-N-METHYLFORMAIMIDE WITH MINERIAL ACIDES.

公开(公告)号：CA841117A

公开(公告)日：1970-05-05

申请号：CA841117D

Applicant: HOECHST AG

Inventor： BESTIAN HERBERT ,  ULMSCHNEIDER DIETER ,  BEERMANN CLAUS ,  BARTMANN WILHELM

公开(公告)号：CA731721A

公开(公告)日：1966-04-05

申请号：CA731721D

Applicant: HOECHST AG

Inventor： ULMSCHNEIDER DIETER ,  EHMANN WERNER ,  BEERMANN CLAUS ,  BARTMANN WILHELM

公开(公告)号：DK480088D0

公开(公告)日：1988-08-26

申请号：DK480088

申请日：1988-08-26

Applicant: HOECHST AG

Inventor： BADER HUBERT ,  HOPPE HANS-ULLRICH ,  MAGERSTAEDT MICHAEL ,  SCHLINGMANN MERTEN ,  ULMSCHNEIDER DIETER ,  WALCH AXEL

IPC: C07H19/207 ,  C12M1/40 ,  C12N11/04 ,  C12N11/08 ,  C07K17/08 ,  C08F8/30 ,  B01J13/02 ,  C12N1/14

Abstract: A method for binding cofactors to polymers entails an aromatic or benzylic amino-containing cofactor being converted into the corresponding isothiocyanate, and the latter then being attached to a polymer with suitable functional groups.

公开(公告)号：NO140893C

公开(公告)日：1979-12-05

申请号：NO753120

申请日：1975-09-12

Applicant: HOECHST AG

Inventor： ENGELHARDT FRIEDRICH ,  HILLE MARTIN ,  ULMSCHNEIDER DIETER

IPC: C09K8/04 ,  C08F20/42 ,  C08F20/52 ,  C08F26/00 ,  C08F28/00 ,  C08F220/10 ,  C08F220/14 ,  C08F220/44 ,  C08F220/56 ,  C08F226/02 ,  C08F228/02 ,  C09K8/24 ,  E21B21/00 ,  C09K7/02

Abstract: An aqueous clay base mud for deep drilling containing as a protective colloid a copolymer which is constituted by the formula I, II and III I, II, III IN WHICH R1 and R2 each is hydrogen of -CH3; R3 is -CO-NH2, -CN or COOCH3; R4 is hydrogen, -CH3 or -C2H5; R5 is -CH3 or -C2H5 or R4 and R5 together represent a propylene group forming a pyrrolidone radical with the inclusion of the radical Me is ammonium, potassium, sodium or lithium and x is 5 to 50, y 25 to 92 and z 3 to 70, OR BY THE SAPONIFICATION PRODUCTS THEREOF AND WHICH CONTAINS THE COMPONENTS IN THE PARTS BY WEIGHT OF THE STARTING MONOMERS INDICATED BY THE INDICES X, Y AND Z.

公开(公告)号：NO140893B

公开(公告)日：1979-08-27

申请号：NO753120

申请日：1975-09-12

Applicant: HOECHST AG

Inventor： ENGELHARDT FRIEDRICH ,  HILLE MARTIN ,  ULMSCHNEIDER DIETER

IPC: C09K8/04 ,  C08F20/42 ,  C08F20/52 ,  C08F26/00 ,  C08F28/00 ,  C08F220/10 ,  C08F220/14 ,  C08F220/44 ,  C08F220/56 ,  C08F226/02 ,  C08F228/02 ,  C09K8/24 ,  E21B21/00 ,  C09K7/02

Abstract: An aqueous clay base mud for deep drilling containing as a protective colloid a copolymer which is constituted by the formula I, II and III I, II, III IN WHICH R1 and R2 each is hydrogen of -CH3; R3 is -CO-NH2, -CN or COOCH3; R4 is hydrogen, -CH3 or -C2H5; R5 is -CH3 or -C2H5 or R4 and R5 together represent a propylene group forming a pyrrolidone radical with the inclusion of the radical Me is ammonium, potassium, sodium or lithium and x is 5 to 50, y 25 to 92 and z 3 to 70, OR BY THE SAPONIFICATION PRODUCTS THEREOF AND WHICH CONTAINS THE COMPONENTS IN THE PARTS BY WEIGHT OF THE STARTING MONOMERS INDICATED BY THE INDICES X, Y AND Z.

公开(公告)号：BR8107729A

公开(公告)日：1982-08-31

申请号：BR8107729

申请日：1981-11-27

Applicant: HOECHST AG

Inventor： WEGENER PETER ,  RIEMENSCHNEIDER WILHELM ,  ULMSCHNEIDER DIETER

IPC: C07C311/65 ,  C07C20060101 ,  C07C67/00 ,  C07C301/00 ,  C07C303/36 ,  C07C303/40 ,  C07C161/00

Abstract: The invention relates to a process for the production of chloroalkylsulfonyl isocyanates of the formula by a catalytically induced reaction of chlorosulfonyl isocyanate with one or more C2-C4-olefins. The reaction is carried out in a continuous manner in a tubular reactor.

公开(公告)号：DD156083A5

公开(公告)日：1982-07-28

申请号：DD22733281

申请日：1981-01-30

Applicant: HOECHST AG

Inventor： KLIPPERT HEINZ ,  ULMSCHNEIDER DIETER

IPC: C08F2/20 ,  C08F14/06 ,  C08F291/00

Abstract: A process for the polymerization of vinyl chloride in an aqueous phase in the presence of oil-soluble free-radical initiators and a mixture of at least two high-molecular, surface-active suspending agents is described. This mixture is composed of 10 to 90% by weight (relative to the mixture) of at least one copolymer formed from vinyl acetate and a compound of the formula R1-CO-NR2-CH=CH2 wherein R1 is H or alkyl having 1 to 4 C atoms and R2 is H or methyl, and of 90 to 10% by weight (relative to the mixture) of at least one cellulose ether or a partially acetylated polyvinyl alcohol. Homopolymers, copolymers or graft copolymers of vinyl chloride which have an improved combination of properties are obtained.