中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

251 records (took 0.023 seconds)

    116.
    发明专利
    未知

    公开(公告)号：DE59605251D1

    公开(公告)日：2000-06-21

    申请号：DE59605251

    申请日：1996-02-03

    Applicant: BASF AG

    Inventor： WARZELHAN VOLKER ,  PIPPER GUNTER ,  SEELIGER URSULA ,  BAUER PETER ,  PAGGA UDO ,  YAMAMOTO MOTONORI

    IPC: C08J5/00 ,  A61L15/26 ,  A61L15/62 ,  C08G63/183 ,  C08G63/20 ,  C08G63/60 ,  C08G63/668 ,  C08G63/672 ,  C08G63/688 ,  C08G63/91 ,  C08J9/00 ,  C08J9/04 ,  C08L67/00 ,  C08L101/16 ,  C09J167/00 ,  D21H19/28

    Abstract: PCT No. PCT/EP96/00457 Sec. 371 Date Aug. 14, 1997 Sec. 102(e) Date Aug. 14, 1997 PCT Filed Mar. 5, 1996 PCT Pub. No. WO96/25446 PCT Pub. Date Aug. 22, 1996Biodegradable polyesters having a molecular weight (Mn) of from 5000 to 50,000 g/mol (measured by gel permeation chromatography), a viscosity number of from 30 to 350 g/ml (measured in 50:50 by weight of o-dichlorobenzene/phenol at a concentration of 0.5% by weight of polyester at 25 DEG C.), and a melting point of from 50 to 170 DEG C., and having both hydroxyl and carboxyl end groups, the molar ratio of carboxyl end groups to hydroxyl end groups being greater than one, which is obtained by reacting a mixture consisting essentially of a1) a mixture consisting essentially of from 45 to 80 mol % of adipic acid or ester-forming derivatives thereof, or mixtures thereof, from 20 to 55 mol % of terephthalic acid or ester-forming derivatives thereof, or mixtures thereof, and from 0 to 5 mol % of a sulfonate compound, where the sum of the individual mole percentages is 100 mol %, and a2) a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, in the presence of from 0.01 to 5 mol %, per mol of component a1), of a compound D having at least three groups capable of ester formation, the molar ratio of a1) to a2) being from 0.4:1 to 1.5:1, polymers and biodegradable thermoplastic molding compositions, processes for their preparation and their use for producing biodegradable moldings, adhesives, foams and blends with starch obtained from the polymers or molding compositions.

    118.
    发明专利
    未知

    公开(公告)号：DK0792311T3

    公开(公告)日：1999-09-27

    申请号：DK95937865

    申请日：1995-11-04

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  SCHORNICK GUNNAR ,  WARZELHAN VOLKER ,  SEELIGER URSULA ,  YAMAMOTO MOTONORI ,  B SCHL RAINER

    IPC: C08G63/183 ,  C08G63/60 ,  C08G63/688 ,  C08G63/91 ,  C08J5/00 ,  C08J9/04 ,  C08L67/00 ,  C08L101/16 ,  C09J167/00 ,  D21H19/28

    Abstract: PCT No. PCT/EP95/04335 Sec. 371 Date May 12, 1997 Sec. 102(e) Date May 12, 1997 PCT Filed Nov. 4, 1995 PCT Pub. No. WO96/15175 PCT Pub. Date May 23, 1996A biodegradable polyester obtainable by reacting a mixture comprising (a1) from 95 to 99.9% by weight of a polyester P1 obtainable by reacting a mixture essentially comprising (b1) a mixture comprising 35-95 mol % of adipic acid or ester-forming derivatives thereof, 5-65 mol % of terephthalic acid or ester-forming derivatives thereof, and 0-5 mol % of a compound containing sulfonate groups, and (b2) a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, with the proviso that a compound D with at least three groups capable of ester formation is employed to prepare the polyester P1, (a2) from 0.1 to 5% by weight of a divinyl ether C1 and (a3) from 0 to 5 mol %, based on component (b1) from the preparation of P1, of compound D, and other biodegradable polymers and thermoplastic molding compositions, processes for the preparation thereof, the use thereof for producing biodegradable moldings and adhesives.

Patent Agency Ranking