Partly crosslinked polypropylene@ materials useful for fibres

    公开(公告)号:DE4445853A1

    公开(公告)日:1996-06-27

    申请号:DE4445853

    申请日:1994-12-22

    Applicant: BASF AG

    Abstract: Partly crosslinked plastic materials (A) with a melt flow index 230/2.16 of 0.1-100 g/10 minutes are obtd from: (a1) a polymer contg: (a1.1) 25-97 wt% of a copolymer of propylene with 0.1-15 wt% 2-10C alkene-1, and (a1.2) 3-75 wt% of a copolymer of propylene with 15-80 wt% 2-10C alkene-1; or (a2) a polymer contg: (a2.1) 25-97 wt% propylene homopolymer, and (a2.2) 3-75 wt% copolymer (a1.2) as above; or (a3) a propylene homopolymer with a melt flow index 230/2 of 0.1-100 g/10 minutes; or (a4) a statistical propylene copolymer contg less than 15 wt% 2-10C alkene-1 comonomer; and (b) a cpd of formula: (H2C=CR-COO)nX (I) R = H or 1-4C alkyl; X = 1-30C alkyl or 7-30C aralkyl, opt contg in-chain O and/or N atom(s); and n = 2 or 3; and these materials (A) are obtd by reacting (a1), (a2), (a3) or (a4) with cpd (b) at 180-280 deg C and 1-100 bar for a mean residence time of 0.2-10 minutes. Also claimed are: (i) a process for the prodn of (A) by reacting the above polymers with (b) at 190-260 deg C and 1-60 bar for a mean residence time of 0.2-5 minutes, pref immediately after prodn of the polymer in a mixer connected to the polymerisation reactor; and (ii) films, fibres and mouldings made from (A).

    34.
    发明专利
    未知

    公开(公告)号:ES2083887T3

    公开(公告)日:1996-04-16

    申请号:ES94116764

    申请日:1994-10-25

    Applicant: BASF AG

    Abstract: A process for the preparation of free-radical-crosslinkable copolymers by polymer-analogous reaction of A) a copolymer (A) comprising a1) from 20 to 85 mol % of a monomer (a1) containing the methacrylic acid structural unit and a2) from 15 to 80 mol % of another free-radical-polymerising monomer (a2), where a3) from 5 to 50 mol % of the total amount of the monomers (a1) and (a2) are monomers (a3) carrying functional groups which are capable of a condensation or addition reaction, with B) an olefinically unsaturated monomer (B) carrying a functional group which is complementary to that of the monomers (a3), characterised in that the polymer-analogous reaction is carried out at from 90 to 150 DEG C and at a mean residence time of from 3 to 20 minutes in highly concentrated solution or in bulk. The free-radical-crosslinkable copolymers which can be prepared by this process are used as binders for powder coatings (paints).

    35.
    发明专利
    未知

    公开(公告)号:DE59400150D1

    公开(公告)日:1996-04-11

    申请号:DE59400150

    申请日:1994-10-25

    Applicant: BASF AG

    Abstract: A process for the preparation of free-radical-crosslinkable copolymers by polymer-analogous reaction of A) a copolymer (A) comprising a1) from 20 to 85 mol % of a monomer (a1) containing the methacrylic acid structural unit and a2) from 15 to 80 mol % of another free-radical-polymerising monomer (a2), where a3) from 5 to 50 mol % of the total amount of the monomers (a1) and (a2) are monomers (a3) carrying functional groups which are capable of a condensation or addition reaction, with B) an olefinically unsaturated monomer (B) carrying a functional group which is complementary to that of the monomers (a3), characterised in that the polymer-analogous reaction is carried out at from 90 to 150 DEG C and at a mean residence time of from 3 to 20 minutes in highly concentrated solution or in bulk. The free-radical-crosslinkable copolymers which can be prepared by this process are used as binders for powder coatings (paints).

    36.
    发明专利
    未知

    公开(公告)号:DE4337482A1

    公开(公告)日:1995-05-04

    申请号:DE4337482

    申请日:1993-11-03

    Applicant: BASF AG

    Abstract: A process for the preparation of free-radical-crosslinkable copolymers by polymer-analogous reaction of A) a copolymer (A) comprising a1) from 20 to 85 mol % of a monomer (a1) containing the methacrylic acid structural unit and a2) from 15 to 80 mol % of another free-radical-polymerising monomer (a2), where a3) from 5 to 50 mol % of the total amount of the monomers (a1) and (a2) are monomers (a3) carrying functional groups which are capable of a condensation or addition reaction, with B) an olefinically unsaturated monomer (B) carrying a functional group which is complementary to that of the monomers (a3), characterised in that the polymer-analogous reaction is carried out at from 90 to 150 DEG C and at a mean residence time of from 3 to 20 minutes in highly concentrated solution or in bulk. The free-radical-crosslinkable copolymers which can be prepared by this process are used as binders for powder coatings (paints).

    37.
    发明专利
    未知

    公开(公告)号:ES2083887T5

    公开(公告)日:1999-11-01

    申请号:ES94116764

    申请日:1994-10-25

    Applicant: BASF AG

    Abstract: A process for the preparation of free-radical-crosslinkable copolymers by polymer-analogous reaction of A) a copolymer (A) comprising a1) from 20 to 85 mol % of a monomer (a1) containing the methacrylic acid structural unit and a2) from 15 to 80 mol % of another free-radical-polymerising monomer (a2), where a3) from 5 to 50 mol % of the total amount of the monomers (a1) and (a2) are monomers (a3) carrying functional groups which are capable of a condensation or addition reaction, with B) an olefinically unsaturated monomer (B) carrying a functional group which is complementary to that of the monomers (a3), characterised in that the polymer-analogous reaction is carried out at from 90 to 150 DEG C and at a mean residence time of from 3 to 20 minutes in highly concentrated solution or in bulk. The free-radical-crosslinkable copolymers which can be prepared by this process are used as binders for powder coatings (paints).

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