公开(公告)号：DE4416863A1

公开(公告)日：1995-11-16

申请号：DE4416863

申请日：1994-05-13

Applicant: BASF AG

Inventor： HENN ROLF DR ,  HAHN KLAUS DR ,  DECKERS ANDREAS DR ,  MAC KEE GRAHAM EDMUND DR ,  TATZEL HERMANN ,  DRUMM RUDOLF DR ,  FISCHER JUERGEN DR

IPC: C08J9/18 ,  C08J9/16 ,  C08J9/232 ,  C08L25/02 ,  C08L25/04 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06 ,  C08L21/00 ,  C08J9/14

Abstract: Expandable styrene polymers (I) for elastic polystyrene (PS) foam contain: (a) 75-99 wt.% PS and/or styrene copolymer contg. at least 50 wt.% styrene; (b) 0-24 wt.% styrene-soluble elastomer(s); (c) 1-25 wt.% core-shell type graft copolymer(s); (d) 1-15 wt.% (w.r.t. a+b+c) low-boiling blowing agent(s), and opt. (e) conventional additives. Also claimed are processes for the prodn. of (I) (see below). Also claimed is elastic PS foam contg. (a), (b), (c) and (e) in amts. as above. Also claimed is a process for the prodn. of PS foam by heating (I) at a temp. above the softening pt. so as to expand the particles and weld them together in a non-gastight mould. Pref. component (b) is polybutadiene, polyisobutylene or ethylene-propylene rubber, pref. polybutadiene. (c) is a core-shell graft copolymer, pref. with a core of a polymer with a Tg of 20 to -60 degrees C and a shell of harder material, in amts. of 40-80 wt.% and 20-60 wt.% respectively. Pref., the core consists of a copolymer of 40-90 wt.% alkyl (meth)acrylate and 10-60 wt.% styrene, and the shell of a copolymer of 80-99 wt.% styrene and 1-20 wt.% alkyl (meth)acrylate.

公开(公告)号：DE59500626D1

公开(公告)日：1997-10-16

申请号：DE59500626

申请日：1995-05-05

Applicant: BASF AG

Inventor： HENN ROLF DR ,  HAHN KLAUS DR ,  DECKERS ANDREAS DR ,  MCKEE GRAHAM EDMUND DR ,  TATZEL HERMANN ,  DRUMM RUDOLF DR ,  FISCHER JUERGEN DR

IPC: C08J9/18 ,  C08J9/16 ,  C08J9/232 ,  C08L25/02 ,  C08L25/04 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06

Abstract: Expandable styrene polymers (I) for elastic polystyrene (PS) foam contain: (a) 75-99 wt.% PS and/or styrene copolymer contg. at least 50 wt.% styrene; (b) 0-24 wt.% styrene-soluble elastomer(s); (c) 1-25 wt.% core-shell type graft copolymer(s); (d) 1-15 wt.% (w.r.t. a+b+c) low-boiling blowing agent(s), and opt. (e) conventional additives. Also claimed are processes for the prodn. of (I) (see below). Also claimed is elastic PS foam contg. (a), (b), (c) and (e) in amts. as above. Also claimed is a process for the prodn. of PS foam by heating (I) at a temp. above the softening pt. so as to expand the particles and weld them together in a non-gastight mould. Pref. component (b) is polybutadiene, polyisobutylene or ethylene-propylene rubber, pref. polybutadiene. (c) is a core-shell graft copolymer, pref. with a core of a polymer with a Tg of 20 to -60 degrees C and a shell of harder material, in amts. of 40-80 wt.% and 20-60 wt.% respectively. Pref., the core consists of a copolymer of 40-90 wt.% alkyl (meth)acrylate and 10-60 wt.% styrene, and the shell of a copolymer of 80-99 wt.% styrene and 1-20 wt.% alkyl (meth)acrylate.

公开(公告)号：ES2105809T3

公开(公告)日：1997-10-16

申请号：ES95106772

申请日：1995-05-05

Applicant: BASF AG

Inventor： HENN ROLF DR ,  HAHN KLAUS DR ,  DECKERS ANDREAS DR ,  MCKEE GRAHAM EDMUND DR ,  TATZEL HERMANN ,  DRUMM RUDOLF DR

IPC: C08J9/18 ,  C08J9/16 ,  C08J9/232 ,  C08L25/02 ,  C08L25/04 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06

Abstract: Expandable styrene polymers (I) for elastic polystyrene (PS) foam contain: (a) 75-99 wt.% PS and/or styrene copolymer contg. at least 50 wt.% styrene; (b) 0-24 wt.% styrene-soluble elastomer(s); (c) 1-25 wt.% core-shell type graft copolymer(s); (d) 1-15 wt.% (w.r.t. a+b+c) low-boiling blowing agent(s), and opt. (e) conventional additives. Also claimed are processes for the prodn. of (I) (see below). Also claimed is elastic PS foam contg. (a), (b), (c) and (e) in amts. as above. Also claimed is a process for the prodn. of PS foam by heating (I) at a temp. above the softening pt. so as to expand the particles and weld them together in a non-gastight mould. Pref. component (b) is polybutadiene, polyisobutylene or ethylene-propylene rubber, pref. polybutadiene. (c) is a core-shell graft copolymer, pref. with a core of a polymer with a Tg of 20 to -60 degrees C and a shell of harder material, in amts. of 40-80 wt.% and 20-60 wt.% respectively. Pref., the core consists of a copolymer of 40-90 wt.% alkyl (meth)acrylate and 10-60 wt.% styrene, and the shell of a copolymer of 80-99 wt.% styrene and 1-20 wt.% alkyl (meth)acrylate.