3.
    发明专利
    未知

    公开(公告)号:DE4041963A1

    公开(公告)日:1992-06-25

    申请号:DE4041963

    申请日:1990-12-24

    Applicant: STAMICARBON

    Abstract: Disclosed are conversion products of N-substituted carbamoyllactam functional compounds characterized by the general formula: where: A represents an oxygen atom or an NH group; R represents an alkyl, aralkyl, alkaryl or aryl group, where alkyl and alkyl bound in aralkyl or alkaryl may also be cycloalkyl; P represents a residue of a compound P(AH)x with a number average molecular weight of at least 150, with one or more OH or NH2 groups, P(AH)x being a liquid crystalline compound or a compound with liquid crystalline segments in the main chain and/or the side chain, or a compound which forms with lactam-blocked polyisocyanate a compound with liquid crystalline properties; (-L-) represents an opened lactam ring; (-L) represents a non-opened lactam ring; x is a whole number higher than or equal to 1; y is equal to 0 or 1; and a is a whole number higher than or equal to 1. Further, the present invention relates to polylactam block copolymers obtained by lactam polymerization at a lactam group.

    6.
    发明专利
    未知

    公开(公告)号:DE2626104A1

    公开(公告)日:1976-12-30

    申请号:DE2626104

    申请日:1976-06-10

    Applicant: STAMICARBON

    Abstract: New mixed hydroxymethyl-hydroxyalkyl isocyanurates are produced. Each hydroxyalkyl group in the mixed isocyanurates may contain between two and twelve carbon atoms. These mixed hydroxymethyl-hydroxy (C2-C12 alkyl) isocyanurates are produced by reacting cyanuric acid with (1) a hydroxymethylating agent and (2) a hydroxyalkylating agent. The order of these two reactions may be varied.

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