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：ZA7702686B

公开(公告)日：1978-04-26

申请号：ZA7702686

申请日：1977-05-05

Applicant: HOECHST AG

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

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

CPC classification number: C08J3/12 ,  C08G2/18 ,  C08G2/38 ,  C08J2359/02

公开(公告)号：SE347525B

公开(公告)日：1972-08-07

申请号：SE1348069

申请日：1969-10-01

Applicant: HOECHST AG

Inventor： KNITTEL V ,  GOHLKE F ,  SABEL H

IPC: C11D3/00 ,  C11D3/37 ,  C11D3/36