43.
    发明专利
    未知

    公开(公告)号:DE59600383D1

    公开(公告)日:1998-09-03

    申请号:DE59600383

    申请日:1996-01-09

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/00059 Sec. 371 Date Jul. 3, 1997 Sec. 102(e) Date Jul. 3, 1997 PCT Filed Jan. 9, 1996 PCT Pub. No. WO96/21690 PCT Pub. Date Jul. 18, 1996Biodegradable polyetheresteramides P1 which are obtained by reacting (a1) a mixture containing 20-95 mol % of adipic acid or ester-forming derivatives thereof or mixtures thereof and 5-80 mol % of terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and (a2) a mixture of dihydroxy compounds (a21) from 15 to 99.3 mol % of a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, (a22) from 0.2 to 85 mol % of a dihydroxy compound containing ether functionalities of the formula I HO-((CH2)n-O)m-H I where n is 2, 3 or 4 and m is an integer from 2 to 250, or mixtures thereof and (a23) from 0.5 to 80 mol % of an amino-C2-C12-alkanol or amino-C5-C10-cycloalkanol, where the molar ratio of (a1) to (a2) is from 0.4:1 to 1.5:1, with the proviso, inter alia, that the polyetheresteramides P1 have a molecular weight (Mn) in the range from 5000 to 80,000 g/mol, and biodegradable polymers, biodegradable moldings, and adhesives obtained from the disclosed polymers.

    44.
    发明专利
    未知

    公开(公告)号:NO973229D0

    公开(公告)日:1997-07-11

    申请号:NO973229

    申请日:1997-07-11

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/00059 Sec. 371 Date Jul. 3, 1997 Sec. 102(e) Date Jul. 3, 1997 PCT Filed Jan. 9, 1996 PCT Pub. No. WO96/21690 PCT Pub. Date Jul. 18, 1996Biodegradable polyetheresteramides P1 which are obtained by reacting (a1) a mixture containing 20-95 mol % of adipic acid or ester-forming derivatives thereof or mixtures thereof and 5-80 mol % of terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and (a2) a mixture of dihydroxy compounds (a21) from 15 to 99.3 mol % of a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, (a22) from 0.2 to 85 mol % of a dihydroxy compound containing ether functionalities of the formula I HO-((CH2)n-O)m-H I where n is 2, 3 or 4 and m is an integer from 2 to 250, or mixtures thereof and (a23) from 0.5 to 80 mol % of an amino-C2-C12-alkanol or amino-C5-C10-cycloalkanol, where the molar ratio of (a1) to (a2) is from 0.4:1 to 1.5:1, with the proviso, inter alia, that the polyetheresteramides P1 have a molecular weight (Mn) in the range from 5000 to 80,000 g/mol, and biodegradable polymers, biodegradable moldings, and adhesives obtained from the disclosed polymers.

    48.
    发明专利
    未知

    公开(公告)号:DE50105834D1

    公开(公告)日:2005-05-12

    申请号:DE50105834

    申请日:2001-03-29

    Applicant: BASF AG

    Inventor: BRAUN FRANK

    Abstract: The invention relates to a process for the production of expanded or expandable polyolefin beads by impregnating polyolefin granules with a volatile blowing agent in suspension under pressure. As suspension aid, use is made of a mixture of a water-insoluble inorganic compound and a surfactant, and the impregnation is carried out in the presence of a surface-active polymer carrying carboxyl or carboxylate groups.

    49.
    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