Patent search ap:("BASF AG") AND inv:"GRAMMATIS ZAFIRIOS" Page 1

1.

发明专利
Stabilized styrenic copolymers, useful for the production of molded articles, film, fiber and foam, are prepared by the addition of an antioxidant during a continuous polymerization process. 未知

公开(公告)号：DE10058302A1

公开(公告)日：2001-06-07

申请号：DE10058302

申请日：2000-11-24

Applicant: BASF AG

Inventor： NIESNER NORBERT , BARGHOORN PETER , GOTTSCHALK AXEL , FISCHER WOLFGANG , GRAMMATIS ZAFIRIOS

IPC: C08F2/44 , C08F12/04 , C08F212/08

Abstract: Stabilized styrenic copolymers (I) comprise a vinyl aromatic monomer, a comonomer and an antioxidant, whereby the polymerization is carried out in a continuous process and the antioxidant is added during the continuous polymerization. An Independent claim is included for molded articles, film, fiber and foam containing the stabilized styrenic copolymer (I).

2.

发明专利
Rubber-modified styrene polymer production, for molding, film, fiber or foam, involves producing rubber by anionic dispersion polymerization, dissolving in styrene monomer without removing medium and anionic or free radical polymerization 未知

公开(公告)号：DE10330935A1

公开(公告)日：2005-02-03

申请号：DE10330935

申请日：2003-07-08

Applicant: BASF AG

Inventor： SUHM JUERGEN , LOTH WOLFGANG , SCHWITTAY CLAUDIUS , MEHLER CHRISTOF , KOCH JUERGEN , GRAMMATIS ZAFIRIOS , CLAUER JAUME , WIEDEMANN ALEXANDRA , NIEKEN ULRICH , WASMER KARL-HEINZ , SCHADE CHRISTIAN , DESBOIS PHILIPPE

IPC: C08F279/02 , C08F2/26

Abstract: Production of rubber-modified styrene polymers (I) comprises (1) producing rubber (II) dispersion by anionic dispersion polymerization of diene and optionally styrene monomer(s) in 3-6 carbon aliphatic hydrocarbon (III) which is nonsolvent for (II); (2) mixing intensively with styrene monomer and optionally comonomer, without separating (III), to dissolve (II) in monomer(s); and (3) anionic or free radical polymerization of (II) solution to (I) and simultaneous removal of (III). An independent claim is also included for rubber-modified styrene polymers made by this process.

3.

发明专利
Mineral oil addition is first effected directly after product degassing in the anionic polymerization of styrene and/or diene monomers 未知

公开(公告)号：DE10316266A1

公开(公告)日：2004-10-28

申请号：DE10316266

申请日：2003-04-08

Applicant: BASF AG

Inventor： DESBOIS PHILIPPE , GRAMMATIS ZAFIRIOS , LOTH WOLFGANG , WALTER HANS-MICHAEL , KOCH JUERGEN , SUHM JUERGEN , MITULLA KONRAD , SCHWITTAY CLAUDIUS

IPC: C08F12/04 , C08F36/04 , C08F297/04 , C08F2/44 , C08F2/04 , C08F212/08 , C08F236/02 , C08F297/00 , C08J5/00

Abstract: Production of homo- or co-polymers from styrene and/or diene monomers by anionic polymerization followed by degassing and addition of a mineral oil additive is such that at least a part of the mineral oil is first added after the degassing step.

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