72.
    发明专利
    未知

    公开(公告)号:DE4415319A1

    公开(公告)日:1995-11-09

    申请号:DE4415319

    申请日:1994-05-02

    Applicant: HOECHST AG

    Abstract: Low-viscosity copolymers with OH and COOH gps. (I) are obtd. by reacting (A) 3 - 50 wt.% glycidyl ester(s) of satd. aliphatic carboxylic acids with a tert. or quat. alpha -C atom and (B) 97 - 50 wt.% of at least 2 unsatd. comonomers, at least one of which contains at least one COOH gp. and at least one of which is sterically hindered, in the presence of radical initiators, and with an excess of COOH gps. in (B) wrt. epoxide gps. in (A) such that the prod. has an acid no. of at least 15 mg KOH/g. Also claimed is the above process for the prodn. of (I). Also claimed are 1-component paints with (I) as binder and formaldehyde/amino-resin reaction prods. (opt. etherated with 1 - 8 C aliphatic alcohol) as hardeners, and 2-component paints with (I) as binder and polyisocyanates or urethane-forming polyisocyanate derivs. as hardeners.

    Alloys of cyclo-olefin] polymers and polyolefin(s)

    公开(公告)号:DE4213219A1

    公开(公告)日:1993-10-28

    申请号:DE4213219

    申请日:1992-04-22

    Applicant: HOECHST AG

    Abstract: Producing polymer alloys (I) comprises combining finely divided cyclo-olefin copolymers (A) and finely divided poly-olefins (B) and processing the mixt. at elevated temp. under the action of shear forces. Block copolymers (A1) are prepd. by (co)polymerisation of 0.1-95 wt.% monomer(s) of formula (IIA-F), 0-95 wt.% cyclo-olefin of formula (III) and 0-99 wt.% acyclic olefin(s) of formula (IV) at -78 to 150 deg.C and 0.01-64 bar in the presence of a catalyst system contg. a co-catalyst (C) and a metallocene (M); when the block copolymer has M2/Mn below 2, the monomer/comonomer ratio is changed by at least 10% or another monomer of formula (II-IV) is added, and the prod. is isolated. 0.1-99 wt.% (IA) is combined with 0-95 wt.% (B), 0-95 wt.% cyclo-olefin polymer contg. the above monomers which is not a block copolymer (A2), and opt. additives, and the mixt. is processed as above. Pref. (B) are poly-1-olefins, esp. polyethylene (PE), 0-50 pts. wt. HDPE, or polypropylene (PP), isotatic PP. (I) are made by combining 1-55 pts. wt. (A1), 10-80 pts. wt. (B) and 10-80 pts. wt. (A2), pref. with ratio (B)/(A1) = at least 1:1. (M) is a metallocene of formula (V) (where M1 = Ti, Zr, Hf, V, Nb or Ta; R14,R15 = H, halo, 1-10C alkyl or alkoxy, 6-10C aryl or aryloxy, 2-10C alkenyl, 7-40C aralkyl or alkaryl, or 8-40C aralkenyl; R16,R17 = mono- or poly-nuclear hydrocarbon residue which can form a sandwich structure with M1; R18 = M2R19R20-, -M2R19R20-M2R19R20-, M2R19R20-C(R21)2-, -CR19R20-, -O-M2R19R20-, CR19R20-CR19R20-, =BR19, -A1R19, -Ge-, -Sn-, -O-, -S-, -SO-, -SO2-, =NR19, =CO, =PR19 or =P(O)R19 (with R19-R21 = H, halo, 1-10C alkyl, alkoxy or fluroalkyl, 6-10C aryl or fluoroaryl, 2-10C alkenyl, 7-40C aralkyl or alkaryl, or 8-40C aralkenyl, or R19/R20 or R19/R21 form part of a ring; M2 = Si, Ge or Sn).

Patent Agency Ranking