中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

56 records (took 0.026 seconds)

    14.
    发明专利
    未知

    公开(公告)号：DE19929791A1

    公开(公告)日：2001-02-01

    申请号：DE19929791

    申请日：1999-06-29

    Applicant: BASF AG

    Inventor： HEITZ THOMAS ,  KLATT MARTIN ,  NEUHAUS RALF

    IPC: C08G63/78 ,  C08G63/85 ,  C08G63/183

    Abstract: The invention relates to a method for the continuous production of polybutylene terephthalate from terephthal acid and 1,4-butane diole, comprising the following stages: a) direct esterification of terephthal acid with 1,4-butane diole in a reactor cascade of at least two reactors b) pre-condensation of the esterification product obtained in stage a), c) polycondensation of the pre-condensate obtained in stage b), whereby the temperature of the reactor cascade in stage a) is progressively decreased during its operation.

    16.
    发明专利
    未知

    公开(公告)号：DE19904813A1

    公开(公告)日：2000-08-10

    申请号：DE19904813

    申请日：1999-02-05

    Applicant: BASF AG

    Inventor： HEITZ THOMAS ,  KLATT MARTIN

    IPC: C08K5/20 ,  C08L67/02 ,  C08L83/14 ,  C08L83/08

    Abstract: The invention relates to polyester molding material which contains A) 10 to 98.9 wt.-% of a thermoplastic polyester, B) 0.1 to 30 wt.-% of a borosiloxane polymer, C) 1 to 40 wt.-% of a fiber-shaped or particulate filler or mixtures thereof, D) 0 to 5 wt.-% of an ester or amide of saturated or unsaturated aliphatic carboxylic acids with 10 to 40 C atoms with aliphatic alcohols or amines with 2 to 40 C atoms, E) 0 to 40 wt.-% of further additives. According to the invention, the sum of the weight percentages of components A) to E) is 100 %.

    17.
    发明专利
    未知

    公开(公告)号：DE19904188A1

    公开(公告)日：2000-08-03

    申请号：DE19904188

    申请日：1999-02-02

    Applicant: BASF AG

    Inventor： HEITZ THOMAS ,  KLATT MARTIN

    IPC: C08L67/02

    Abstract: The invention relates to thermoplastic polyester molding materials which contain A) 30 to 100 wt.-% polyesters which consist of a 1) 50 to 99 wt.-% of a polybutylene terephthalate with a conte nt in a Lewis acidic inorganic or organic metal compound in the range of from 65 to 100 ppm (based on the metal), and a2) 1 to 50 wt.-% of polyesters that are not polybutylene terephthalate, B ) 0 to 40 wt.-% of rubber-elastic polymers, C) 0 to 30 wt.-% of flame-retardants, D) 0 to 50 wt.-% of fillers and E) 0 to 20 wt .-% of further additives. The invention is further characterized in that the total of the weight percentage of components A) to E) invariably is 100.

    19.
    发明专利
    未知

    公开(公告)号：DE19825350A1

    公开(公告)日：1999-12-09

    申请号：DE19825350

    申请日：1998-06-05

    Applicant: BASF AG

    Inventor： HEITZ THOMAS ,  KLATT MARTIN

    IPC: C08G63/85 ,  C08L67/02 ,  C08J5/00 ,  C08J5/18 ,  C08K3/10 ,  C08K5/56 ,  C08K5/57 ,  C08L69/00 ,  D01F6/62

    Abstract: The invention relates to thermoplastic polyester molding materials, containing: A) 30 to 100 % by weight polyesters consisting of a1) 50 to 100 % by weight of polybutylene terephthalate with a Lewis acid inorganic or organic metal compound content in the range of from 65 to 100 ppm (in relation to the metal) and a2) 0 to 50 % by weight of polyesters different from polybutylene terephthalate; B) 0 to 40 % by weight of impact resistance modifiers; C) 0 to 30 % by weight of flameproofing agents; D) 0 to 50 % by weight of filling materials and E) 0 to 20 % by weight of further additives, whereby the sum of the weight percentages of constituents A) to E) always equals 100.

Patent Agency Ranking