公开(公告)号：DE2536780A1

公开(公告)日：1977-03-03

申请号：DE2536780

申请日：1975-08-19

Applicant: BASF AG

Inventor： HESS KLAUS DR ,  STOECKEL ALFREDY DIPL-ING DR ,  SANDER BRUNO DIPL CHEM DR ,  BONITZ ECKHARD DIPL CHEM DR ,  MOELLER ROLF DIPL CHEM DR

IPC: B29D99/00 ,  B29B17/00 ,  B29C59/00 ,  B29C69/00 ,  C08J11/08 ,  D01D5/40 ,  D01F6/22 ,  B29C29/00 ,  C08J11/04 ,  C08L25/04

公开(公告)号：DE2516563A1

公开(公告)日：1976-10-28

申请号：DE2516563

申请日：1975-04-16

Applicant: BASF AG

Inventor： SANDER BRUNO DIPL CHEM DR ,  BONITZ ECKHARD DIPL CHEM DR ,  VOSS HEINZ ,  BERBNER HEINZ ING GRAD ,  GAERBER WOLFGANG

IPC: D01D5/40 ,  D01F6/10 ,  D01F6/22 ,  C08L27/04 ,  C08J5/18 ,  C08L25/04

Abstract: Fibrils made by pumping a soln., in methylketone, tetrahydrofuran or 1,4-dioxan, of styrene, vinyl- or vinylidene-chloride into a chamber at ambient temp. which is simultaneously supplied with a liq. to cause pptn. of the polymer in a zone subjected to high shear at a work input rate of >5 W.s/cm3. For mfr. of fibres 0.5-30 mm long, 0.5-10 mym across, with a specific surface area of 10-70 m2/g and a fineness of 15-50 degrees SR (Schopper-Riegler scale). The fibres are suitable for mfr. of synthetic papers or cardboard or for use in moulding compsns. The fibres produced are readily isolated than those precipitated by coagulation in bulk from (hot) solns. The fibres produced are relatively white and behave similarly to cellulosic fibres when forming mats.