公开(公告)号：ZA772686B

公开(公告)日：1978-04-26

申请号：ZA772686

申请日：1977-05-05

Applicant: HOECHST AG

Inventor： SABEL H ,  SCHLAF H ,  BURG K ,  SEXTRO G ,  HELLER A

IPC: C08G2/00 ,  C08G2/18 ,  D01F6/66 ,  C08G2/28 ,  C08G2/30 ,  C08G2/38 ,  C08J3/12 ,  C08J3/14 ,  C08L ,  C08J

Abstract: of the disclosure: Granular oxymethlene polymers are prepared by cooling a solution or dispersion of an oxymethylene polymer, the temperature of the said solution of dispersion polymer, to a temperature just below the said sintering temperature. As dissolving or dispersing agent there is used a mixture of methanol and water. The cooling of the said solution of dispersion is effected in two stages while using a liquid cooling agent or a cooling device. After precipitation the coarse-granular polymer is separated from the fine-granular portion. It is suitable as engineering plastic for preparing molded articles.

公开(公告)号：SE388866B

公开(公告)日：1976-10-18

申请号：SE7302422

申请日：1973-02-21

Applicant: HOECHST AG

Inventor： SEXTRO G ,  BURG K ,  KERN R ,  SCHMIDT H ,  WOLTERS E

IPC: C08L59/00 ,  C08L59/02

Abstract: A thermoplastic molding composition is composed of a linear poly(oxymethylene) and a graft copolymer the side chains of which consist essentially of oxymethylene groups. The said graft copolymer acts as a nucleating agent; its effectiveness is dependent on its amount, molecular weight and degree of grafting. Molded articles made of said composition show improved mechanical properties.

公开(公告)号：BR7501084A

公开(公告)日：1975-12-02

申请号：BR7501084

申请日：1975-02-21

Applicant: HOECHST AG

Inventor： SEXTRO G ,  BURG K ,  WOLTERS E

IPC: C08L59/00 ,  C08G2/00 ,  C08G2/18 ,  C08G2/36 ,  C08K5/09 ,  C08K5/098 ,  C08G2/10 ,  C08K5/17

Abstract: Oxymethylene copolymer having heat and hydrolysis resistant terminal groups is prepared by heating the polymers present in a liquid phase, whereby a thermal degradation of the unstable terminal groups takes place. The degradation is advantageously effected in the presence of a calcium or magnesium salt of an aliphatic carboxylic acid of low molecular weight. The oxymethylene copolymers are suitable as engineering plastic for preparing semi-finished products and finished products.

公开(公告)号：SE7415191A

公开(公告)日：1975-06-16

申请号：SE7415191

申请日：1974-12-04

Applicant: HOECHST AG

Inventor： SEXTRO G ,  BURG K ,  DURICHEN K

IPC: C08G2/00 ,  B01J8/00 ,  B01J19/00 ,  C08G2/18 ,  C08G2/24

CPC classification number: C08G2/24 ,  B01J8/002 ,  B01J19/0013 ,  B01J2219/00076 ,  B01J2219/00162 ,  B01J2219/00168 ,  B01J2219/00184

公开(公告)号：BR7400190D0

公开(公告)日：1974-08-15

申请号：BR19074

申请日：1974-01-11

Applicant: HOECHST AG

Inventor： WOLTERS E ,  SCHMIDT H ,  SEXTRO G ,  BURG K

IPC: C08K5/00 ,  C08K5/09 ,  C08K5/098 ,  C08K5/13 ,  C08K5/29 ,  C08L59/00 ,  C08L59/02 ,  C08L77/00 ,  C08G37/02 ,  C08G51/58

公开(公告)号：SE350696B

公开(公告)日：1972-11-06

申请号：SE988769

申请日：1969-07-11

Applicant: HOECHST AG

Inventor： CHERDRON H ,  BURG K ,  BRANDRUP J

IPC: A61F5/04 ,  A61F5/40 ,  C08G1/16

公开(公告)号：FR2025036A7

公开(公告)日：1970-09-04

申请号：FR6941469

申请日：1969-12-02

Applicant: HOECHST AG

Inventor： BURG K ,  WOLTERS E ,  SCHMIDT H

IPC: A61F13/04 ,  A61L15/07 ,  A61L15/00 ,  B32B7/00 ,  B32B27/00 ,  C08G37/00

公开(公告)号：FR2025035A7

公开(公告)日：1970-09-04

申请号：FR6941468

申请日：1969-12-02

Applicant: HOECHST AG

Inventor： BURG K ,  WOLTERS E ,  SCHMIDT H

IPC: A61F13/04 ,  A61L15/07 ,  B32B27/00 ,  A61L15/00 ,  B32B7/00 ,  C08G37/00

公开(公告)号：BE742517A

公开(公告)日：1970-06-02

申请号：BE742517D

申请日：1969-12-02

Applicant: HOECHST AG

Inventor： BURG K ,  WOLTERS E ,  SCHMIDT H

IPC: A61F13/04 ,  A61L15/07

公开(公告)号：SE413776B

公开(公告)日：1980-06-23

申请号：SE7400352

申请日：1974-01-11

Applicant: HOECHST AG

Inventor： WOLTERS E ,  SXHMIDT H ,  BURG K ,  SEXTRO G

IPC: C08K5/00 ,  C08K5/09 ,  C08K5/098 ,  C08K5/13 ,  C08K5/29 ,  C08L59/00 ,  C08L59/02 ,  C08L77/00 ,  C08K5/31