1.
    发明专利
    未知

    公开(公告)号:ES2153517T3

    公开(公告)日:2001-03-01

    申请号:ES96110449

    申请日:1996-06-28

    Applicant: BASF AG

    Abstract: Radiation-curable (meth)acrylates (I) are claimed, which are obtd. by reacting: (i) acylphenyl chloroformates of formula (II) with: (ii) hydroxy (meth)acrylates (III) contg. free hydroxy gp(s). and (meth)acryl gps. in the molecule: R-C(=O)-R (II) R = 1-4 C alkyl, aryl or R ; R = a substd. phenyl gp. of formula (IV); R - R = H, 1-4 C alkyl, 1-4 C alkoxy, OH, phenyl, SH, SCH3, SC2H5, F, Cl, Br, CN, COOH, COO-(1-17 C alkyl), COO-(5-10 C aryl), CF3, N(alkyl)2, N(alkyl)(aryl), N(aryl)2, N , or N H(alkyl)2A ; A = an anion; alkyl, aryl = 1-10 C alkyl and 5-10 C aryl, unless otherwise indicated; and 1-3 R - R gps. = -O-C(=O)-Cl. Also claimed are: (a) a process for the prodn. of radiation curable (meth)acrylate; and (b) use of radiation curable (meth)acrylate in radiation curable compsns..

    3.
    发明专利
    未知

    公开(公告)号:ES2164680T3

    公开(公告)日:2002-03-01

    申请号:ES94116762

    申请日:1994-10-25

    Applicant: BASF AG

    Abstract: Free-radical-crosslinkable copolymers having a number average molecular weight of from 1500 to 6000 and a molecular weight distribution corresponding to a polydispersity of from 1 to 4.0, obtainable by polymer-analogous reaction of A) a copolymer (A) comprising a1) from 50 to 85 mol % of a monomer (a1) containing the methacrylic acid structural unit and a2) from 15 to 50 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, obtainable by a free-radical bulk or solution polymerisation at from 140 to 210 DEG C and a mean residence time of from 2 to 90 min, with B) an olefinically unsaturated monomer (B) carrying a functional group which is complementary to that of the monomers (a3). The free-radical-crosslinkable copolymers are used as binders for powder coatings (paints).

    THERMAL SEPARATING PROCESS
    4.
    发明专利

    公开(公告)号:MY137951A

    公开(公告)日:2009-04-30

    申请号:MYPI20041366

    申请日:2004-04-14

    Applicant: BASF AG

    Abstract: (METH)ACRYLIC MONOMERS ARE SEPARATED BY A THERMAL SEPARATION PROCESS BY ASCENDING AT LEAST ONE ASCENDING GASEOUS STREAM IN A SEPARATING COLUMN CONTAINING A SEQUENCE OF MASS TRANSFER TRAYS AND A LIQUID STREAM THAT CONTAINS DISSOLVED POLYMERIZATION INHIBITOR WHICH DESCENDS IN THE SEPARATING COLUMN, AND IN AT LEAST ONE OF THE STREAMS BEING (METH)ACRYLIC MONOMERS; AND SPRAYING THE INNER SURFACE OF THE SEPARATING COLUMN WITH THE DESCENDING LIQUID STREAM THAT CONTAINS THE DISSOLVED POLYMERIZATION INHIBITOR, AND THE SEPARATING COLUMN HAVING INTERNALS, CERTAIN AREAS OF WHICH ARE SHADOW REGIONS OF THE SPRAYED DESCENDING LIQUID STREAM; AND WHICH SHADOW REGIONS ARE EQUIPPED BY COVERING MEANS (2) WHICH PREVENT CONTACT OF THE SHADOW REGIONS WITH (METH)ACRYLIC MONOMERS AND CONSEQUENTLY UNDESIRED POLYMERIZATION OF MONOMER.

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