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    Processing of catalyst-containing polyisoprene solutions
    2.
    发明授权
    Processing of catalyst-containing polyisoprene solutions 失效
    含有催化剂的聚异戊二烯溶液的处理

    公开(公告)号：US3743631A

    公开(公告)日：1973-07-03

    申请号：US3743631D

    申请日：1971-08-04

    Applicant: BAYER AG

    Inventor： BECK M ,  SCHUECHTER J ,  MARWEDE G ,  KUNTZ E

    IPC: C08C2/06 ,  C08D5/02 ,  C08D5/04

    CPC classification number: C08C2/06

    Abstract: A PROCESS FOR ISOLATING POLYISOPRENE FROM A CATALYSTCONTAINING SOLUTION THEREOF IN AN ORGANIC SOLVENT, WHEREIN (1) THE CATALYST IS DEACTIVATED IN THE POLYMER SOLUTION WITH AN AQUEOUS OR ALCOHOLIC SOLUTION OF A HYDROXIDE OF A METAL OF GROUPS 1A OR 2A OF THE PERIODIC SYSTEM; (2) THE DEACTIVATED SOLUTION IS WASHED WITH WATER, STABILISERS AND/OR MODIFIERS OPTIONALLY BEING ADDED IN STAGE 1 OR STAGE 2; (3) THE AQUEOUS OR AQUEOUS/ALCOHOLIC PHASE IS SEPARATED OFF; (4) AN ALIPHATIC DIAMINE OR POLYAMINE IS ADDED, AND (5) THE ORGANIC SOLVENT IS REMOVED BY STREAM DISTILLATION.

    3.
    发明专利
    未知

    公开(公告)号：BR6804258D0

    公开(公告)日：1973-01-25

    申请号：BR20425868

    申请日：1968-11-22

    Applicant: BAYER AG

    Inventor： WITTE J ,  KUNTZ E ,  SCHON N ,  HAAS F ,  PAMPUS G

    IPC: C08C2/00 ,  C08F36/04

    Abstract: 1,172,070. Polyisoprene. FARBENFABRIKEN BAYER A.G. 30 Oct., 1968 [24 Nov., 1967], No.51388/68. Heading C3P. The stability of cis-1,4-polyisoprene is improved by inactivating a catalyst-containing solution of polyisoprene in an organic solvent with a mixture comprising an aliphatic alcohol having 1 to 6 carbon atoms, a conventional stabilizer and from 0.2 to 0.7% (based on the solid polymer) of an aliphatic or cycloaliphatic secondary amine whose alkyl or cycloalkyl radicals together contain at least 10 carbon atoms. Suitable amines are methyl stearyl amine, di-2-ethylhexyl amine and dicyclohexylamine. In an example, isoprene is polymerized in n-hexane in the presence of a catalyst consisting of a mixture of TiCl 4 and Al(C 2 H 5 ) 3 , and the product mixture is treated with ethanol, N-methylstearylamine and 2,6-di-tert.-butyl-4- methylphenol, followed by steam stripping. The polymer is vulcanized and a carbon-black filler incorporated therein.

    4.
    发明专利
    未知

    公开(公告)号：SE325131B

    公开(公告)日：1970-06-22

    申请号：SE1607765

    申请日：1965-12-10

    Applicant: BAYER AG

    Inventor： OERTEL G ,  KUNTZ E ,  HOLTSCHMIDT H ,  MUELLER E

    IPC: C07C275/10 ,  C07D233/22 ,  C08F3/62 ,  C08F15/02 ,  C08F19/10

    Abstract: 1,142,330. Olefinically unsaturated compounds containing urethane- or urea-methylol alkyl or alkenyl ether groups. FARBENFABRIKEN BAYER A.G. 30 Dec., 1965 [30 Dec., 1964], No. 55242/65. Heading C2C. [Also in Divisions B2 and C3] Olefinically unsaturated compounds have the general formula in which Y denotes an alkylene group containing more than one carbon atom, or an aralkylene or cycloalkylene radical which may contain, as bridge members and/or substituents, carboxylic acid amide, carboxylic acid ester, ether, tertiary amino, urea, urethane or sulphonamide groups, halogen atoms, or cyclic radicals containing oxygen, sulphur or nitrogen atoms, n is an integer of from 1 to 3 and (i) A denotes a vinyl or vinylidene radical which is linked to radical Y directly and X is O or S, in which case R is an alkyl or alkenyl radical or X is NR 1 , in which R 1 is a hydrogen atom or an alkyl or alkenyl group, in which case R is an alkyl or alkenyl radical, or (ii) A denotes a vinyl or vinylidene radical which is linked to Y through a carboxylic acid ester or amide group, and X is O or S, in which case R is an alkyl or alkenyl radical, or X is NR 1 in which R 1 is a hydrogen atom or an alkyl or alkenyl group, in which case R is an alkenyl radical, or (iii) A denotes a vinyl or vinylidene radical which is linked to Y through an ether group, and X is O or S, in which case R is an alkenyl radical or X is NR 1 , in which R 1 is a hydrogen atom or an alkyl or alkenyl radical, in which case R is an alkyl or alkenyl radical, which alkyl and alkenyl radicals R and R 1 contain 1 to 18 carbon atoms and may be branched. The compounds are prepared by (i) reacting a compound containing an olefinic bond and phenolic or alcoholic hydroxy groups or primary or secondary amino groups with an alkoxy or alkenoxy methylisocyanate or (ii) reacting an amino or hydroxy compound with an alkoxy or alkenoxy methylisocyanate to form a compound containing at least one phenolic or alcoholic hydroxyl group or a primary or secondary amino group and introducing a polymerizable radical into said compound, e.g. by acylation or alkylation. Descriptions are given of the preparation of propanediol-2-N-methoxymethylurethane-1-methacrylic acid ester in Example 1, the compound in Example 5, the compound in Example 6, the compound in Example 7 and the compound in Example 8.

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