USE FOR PRODUCING PERMEABLE MEMBRANE OF MICROPHASE SEPARATION POLYMER BLEND

    公开(公告)号:JP2000033246A

    公开(公告)日:2000-02-02

    申请号:JP18750799

    申请日:1999-07-01

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To adjust permeability and to improve separation technology by using a microphase separation polymer blend containing an A-B-C three-block copolymer having an elastomeric middle block B and an A'-C' two-block copolymer. SOLUTION: A microphase separation polymer blend comprising an A-B-C threeblock copolymer and an A'-C' two-block copolymer is used in order to produce a permeable membrane. A suitable A-B-C three-block copolymer has an elastomeric middle block B. An olefinic unsaturated compound of specified conditions is used in order to form the block B. In order to produce an A-B-C/A '-C' polymer blend, the two-block copolymer and the three-block copolymer are added into an organic solvent, and the solution is poured in a polar liquid medium such as methanol, ethanol, water, and the mixture of them. This deposition/precipitation treatment is done under strong stirring.

    MULTIPHASE POLYMER MIXTURES
    3.
    发明申请
    MULTIPHASE POLYMER MIXTURES 审中-公开
    多相聚合物混合物

    公开(公告)号:WO9531501A3

    公开(公告)日:1995-12-21

    申请号:PCT/EP9501753

    申请日:1995-05-09

    Abstract: Multiphase polymer mixtures contain (a) a polymer (A); (b) at least one A-B-C grafted block copolymer (B) made of a block A and a resilient block B that contains a block C as grafted lateral chain, blocks A, B and C differing from each other; and (C) at least one additional polymer (C) different from (A) and (B) and incompatible with polymer (A). Polymer (A) is compatible with block A and incompatible with block C, polymer (C) is compatible with block C and incompatible with block A, the resilient block B has a glass transition temperature below + 20 DEG C and blocks A, B and C are incompatible with each other.

    Abstract translation: 多相聚合物混合物含有(a)聚合物(A); (b)由块A制成的至少一种A-B-C接枝嵌段共聚物(B)和含有作为接枝侧链的嵌段C的弹性嵌段B,彼此不同的嵌段A,B和C; 和(C)至少一种不同于(A)和(B)的另外的聚合物(C)并且与聚合物(A)不相容。 聚合物(A)与嵌段A相容,与嵌段C不相容,聚合物(C)与嵌段C相容,与嵌段A不相容,弹性嵌段B的玻璃化转变温度低于+ 20℃,嵌段A,B和 C不相容。

    5.
    发明专利
    未知

    公开(公告)号:AT366280T

    公开(公告)日:2007-07-15

    申请号:AT05701330

    申请日:2005-02-03

    Applicant: BASF AG

    Abstract: The invention relates to thermoplastic moulding materials containing a mixture of (A) between 30 and 69 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a methylmethacrylate polymer, (B) between 30 and 69 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a copolymer that can be obtained by the polymerisation of a vinylaromatic monomer and a vinylcyanide, and (C) between 1 and 40 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a graft copolymer that can be obtained from (C1) between 60 and 90 wt. %, in relation to (C), of a core, (C2) between 5 and 20 wt. %, in relation to (C), of a first graft envelope consisting of a vinylaromatic monomer, an alkylmethacrylate and optionally a cross-linking monomer, and (C3) between 5 and 20 wt. %, in relation to (C), of a second graft envelope consisting of an alkyl(meth)acrylate polymer, on the proviso that the quantitative ratio of (C2) to (C3) is between 2:1 and 1:2. The invention is characterised in that the average particle size D50 of the core (C1) is between 50 and 250 nm, the average particle size D90 of the core (C1) is between 60 and 1000 nm, the average particle size D90 of the core (C1) being larger than the average particle size D50 of the core (C1), by a factor between 1.15 and 20, and the core (C1) can be obtained by the polymerisation of a monomer mixture comprising (C11) between 65 and 89 wt. %, in relation to (C1), of a 1,3-diene, (C12) between 10 and 34.9 wt. %, in relation to (C1), of a vinylaromatic monomer, and (C13) between 0.1 and 5 wt. %, in relation to (C1), of an agglomeration polymer. The invention also relates to a method for producing said moulding masses, to the use thereof, and to the moulded bodies obtained therefrom.

    10.
    发明专利
    未知

    公开(公告)号:ES2136407T3

    公开(公告)日:1999-11-16

    申请号:ES96916158

    申请日:1996-05-23

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/02229 Sec. 371 Date Nov. 20, 1997 Sec. 102(e) Date Nov. 20, 1997 PCT Filed May 23, 1996 PCT Pub. No. WO96/38489 PCT Pub. Date Dec. 5, 1996A functionalized copolymer of the formula A-B-Z-X where A is a block of vinylaromatic monomers of 8 to 20, preferably 8 to 12, carbon atoms, B is a block of alkadiene monomers of 4 to 12, preferably 4 to 8, carbon atoms, Z is a fundamental building block of a compound having sterically hindering groups and X is a functionalized fundamental building block, a process for its preparation, thermoplastic molding materials containing said copolymer, processes for their preparation, the use for the production of moldings and moldings comprising said molding materials.

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