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    22.
    发明专利
    未知

    公开(公告)号：DE1154617B

    公开(公告)日：1963-09-19

    申请号：DEB0059875

    申请日：1960-10-26

    Applicant: BASF AG

    Inventor： STILZ DR WALTER ,  POMMER DR HORST ,  SCHMIDT DR FRANZ ,  BICZYSKO DR HANS ,  FESSMANN DR HEINZ

    IPC: C08K5/04

    Abstract: A mixture stabilized against heat and light comprises 99.99 to 95% by weight of a linear polyamide, polyurethane or polyurea and 0.01 to 5% by weight of a bis-styryl benzene or a stilbene, each of which bears 1 to 5-OR radicals attached directly to the benzene nuclei, R being hydrogen, an alkyl group with 1 to 4 carbon atoms, a cycloalkyl group with 4 to 7 carbon atoms, an aralkyl group with 7 to 10 carbon atoms or -(CH2)n-owhere n is an integer from 1 to 4 and the oxygen atoms are attached in the o-position. Many polymers and stabilizers are specified. In the examples: (1), (2), (3), (7), (9) and (13) hexamethylene diammonium adipate and e -caprolactam are co-polymerized in the presence of:-(1) and (3) 3:4-methylene-dioxy-41-carbomethoxystilbene; (3) 3-methoxy-4-hydroxy-41-carbomethoxystilbene; (7) (a) 1:4-bis-(31:41-methylene dioxystyryl) benzene; (b) 1:3-bis(31:41-methylene dioxystyryl) benzene; (c) 1:4-bis(4-a -tetrahydrofuranyloxystyryl) benzene; (d) 1:4-bis(4-hydroxystyryl) benzene; (9) 1:4-bis(31:41\h -methylene dioxystyryl) benzene and (13) 1:2-bis-(3:41-methylene-dioxystyryl) benzene. In the remaining examples: (4)3:4-methylene dioxy-31-carbomethoxystilbene is mixed with polycaprylic lactam; (5) 3:4-methylene dioxy-31-carbomethoxystilbene is mixed with polyhexamethylene adipamide; (6) 3:4-methylene dioxy-31-carbomethoxystilbene is mixed with polyo -aminoundecanoic acid; (8) 1:4-bis(31:41-methylene dioxy-b -cyano-styryl) benzene is mixed with poly-e -caprolactam; (10) 1:4-bis-(31:41 -methylene-dioxystyryl) benzene is mixed with polycapryllic lactam; (11) 1:4-bis-(31:41-methylene dioxystyryl) benzene is mixed with polyhexamethylene adipamide and (12) 1:4-bis-(31:41-methylene dioxystyryl) benzene is mixed with polyo -aminoundecanoic acid.

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