4.
    发明专利
    未知

    公开(公告)号:DE102005007479A1

    公开(公告)日:2006-08-31

    申请号:DE102005007479

    申请日:2005-02-17

    Applicant: BASF AG

    Abstract: The invention relates to a process for compounding polycondensates selected from the group consisting of polyamide, polyester and polycarbonate, in the presence of an epoxy-containing styrene and/or (meth)acrylic monomer, of a bisphenol A epoxide or of an epoxy-containing natural oil or fatty acid ester, which comprises carrying out the compounding at temperatures less than/equal to 220° C. and in the presence of an activator selected from the group consisting of: zinc, titanium compound and C1-C12-alkyltriphenylphosphonium halide.

    10.
    发明专利
    未知

    公开(公告)号:AT286935T

    公开(公告)日:2005-01-15

    申请号:AT00929483

    申请日:2000-05-03

    Applicant: BASF AG

    Abstract: In a process for preparing expanded or expandable polymer beads based on biodegradable saturated polyesters made from at least one diol and from at least one dicarboxylic acid,A. polymer pellets are dispersed in a liquid,B. a volatile blowing agent is injected into the dispersion and made to impregnate the pellets at an elevated temperature,C. the pressure on the dispersion is reduced at an elevated temperature, whereupon the pellets comprising blowing agent expand to give foam, and, respectively,D. the pellets are isolated from the liquid.

Patent Agency Ranking