公开(公告)号：DE2139686A1

公开(公告)日：1973-02-15

申请号：DE2139686

申请日：1971-08-07

Applicant: BASF AG

Inventor： WALTER MANFRED DR ,  WEBER HEINZ DR

IPC: C08J9/22 ,  C08J9/224 ,  C08G33/02

Abstract: 1396949 Coated expandable polymer particles BADISCHE ANILIN-& SODA-FABRIK AG 4 Aug 1972 [7 Aug 1971] 36498/72 Heading B2E [Also in Division C3] Coated particulate expandable styrene polymers are made by coating particles of the expandable polymer with 0.05-2% by wt. of the polymer, of a carboxamide or mixture thereof of m.p. 60-110‹C and of formula: RCONHR' where R is a C 7-21 alkyl or alkenyl group and R' is a C 8-22 alkyl or alkenyl group. In the examples beads or granulates of polystyrene containing pentane are coated with powdered stearic, behenic, myristic or oleic N- stearylamide, stearic N-oleylamide, stearic N-2- ethylhexylamide, or behenic or myristic N-laurylamide. The coated particles may be pre-expanded with steam, stored and then expanded in a mould with steam.

公开(公告)号：DE1770553A1

公开(公告)日：1971-10-28

申请号：DE1770553

申请日：1968-06-01

Applicant: BASF AG

Inventor： PRIEBE EDMUND DR ,  WEBER HEINZ DR ,  HIRSCH GUENTER DR ,  SCHULLER HELMUT DR ,  TRIESCHMANN HANS-GEORG PROF DR ,  WILLERSINN LERBERT DR

IPC: C08F283/12 ,  C08J9/20 ,  C08J9/224 ,  C08F7/04