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    Storage-stable plastics additives
    1.
    发明专利
    Storage-stable plastics additives 未知

    公开(公告)号：SG72710A1

    公开(公告)日：2000-05-23

    申请号：SG1996011035

    申请日：1996-11-05

    Applicant: HOECHST AG

    Inventor： GAA KARL ,  NOWY GUNTER ,  PFAHLILER GERHARD ,  ZAH MATTHIAS

    IPC: C08J3/20 ,  B29B9/00 ,  B29B9/10 ,  C08J3/12 ,  C08J3/18 ,  C08K5/00 ,  C09C1/00 ,  B01J2/20

    Abstract: Plastic additives (I), obtained by cooling a mixture of (a) 99.9-10 wt% additive material in the molten state and (b) 0.1-90 wt% additive material in the crystalline state in a moulding process. Preferably, mixtures (I) contain 99.5-25 (preferably 90-30, especially preferred 70-50) wt% (a) and 0.5-75 (preferably 10-70, especially preferred 30-50) wt% (b). Suitable additives comprise UV stabilisers, antioxidants, thermal stabilisers, lubricants, antistatics, coupling agents, compatibilisers, dispersants, acid interceptors, metal deactivators, peroxide decomposing agents, processing stabilisers, nucleating agents, optical brighteners, slip additives, anti-dew additives and fire retardants.

    Polyalkylpiperidine compounds
    2.
    发明专利
    Polyalkylpiperidine compounds 未知

    公开(公告)号：AU2320795A

    公开(公告)日：1996-01-18

    申请号：AU2320795

    申请日：1995-06-22

    Applicant: HOECHST AG

    Inventor： GAA KARL ,  ZAH MATTHIAS

    IPC: C07D498/10 ,  C07D519/00 ,  C07F7/04 ,  C07F7/08 ,  C07F7/10 ,  C07F7/18 ,  C07F9/141 ,  C07F9/6561 ,  C07F9/6574 ,  C08K5/35 ,  C08K5/353 ,  C08K5/52 ,  C08K5/527 ,  C08K5/5419 ,  C09K15/30 ,  C09K15/32 ,  C07F9/547

    Abstract: Polyalkylpiperidine cpds. of formula (I) are new: Y = - O- N- or - N- O; R , R = H or alkyl; R , R = H or alkyl, or R + R + the ring carbon may form a 5- to 12- membered ring; n = 1, 2 or 3; if n = 1, A = -COOR , -P(OR )(OR ), -Si(R )3, -Si(R )3 or a gp. of formula (a); if n = 2, A = -CO-, >POR , >Si(OR )2, >Si(R )2 or (b); if n = 3, A = SiOR , SiR or (c); R = 1-18C alkyl, 2-18C alkenyl or alkynyl, 5-12C cycloalkyl, 6-10C bicycloalkyl, 5-8C cycloalkenyl, 6-10C aryl, 7-9C aralkyl or 7-9C alkaryl, opt. substd. with 1-4C alkyl or Ph; R , R as for R , or a residue of formula (II) or (III): X = direct bond, -CH2- or 2-5C 1,1-alkylidene; R , R = -OR , -NHR or -NR R , or one of these gps. may have the formula (d) or (e); R = H, 1-12C alkyl, 5-7C cycloalkyl, 7-9C aralkyl, 8-18C alkanoyl, 3-5C alkanoyl, -COPh or (f); R , R = 1-10C alkyl, 5-7C cycloalkyl or 6-10C aryl, or R + R plus the N atom may form a 5- to 12-membered ring, opt. also contg. O.

    Process for the preparation of polyalkyl-1-oxa- diazaspirodecane compounds
    6.
    发明专利
    Process for the preparation of polyalkyl-1-oxa- diazaspirodecane compounds 未知

    公开(公告)号：AU1230595A

    公开(公告)日：1995-08-31

    申请号：AU1230595

    申请日：1995-02-16

    Applicant: HOECHST AG

    Inventor： GAA KARL ,  ZAH MATTHIAS

    IPC: C07D498/10 ,  C07D498/20 ,  C07D498/22 ,  C07D519/00 ,  C08G73/06 ,  C08K5/35

    Abstract: The prodn. of polyalkyl-1-oxa-diazaspirodecane cpds. of formula (I) comprises reacting a cpd. of formula (IV) with an epihalohydrin of formula (V) in the mole ratio of (1:1)-(1:10) in inert solvent and in the presence of alkali hydroxide (AOH) as the sole catalyst and then (for n > 1) heating the resulting epoxide (VI) at 100-240 degrees C; after the reaction, sufficient water is added to form two phases. The AOH consists of 1-20 moles solid alkali metal hydroxide or a mixt. with water in the wt. ratio of (1:9)-(9:1). n = 1-50; Y = a gp. of formula (indices 3 and 4 indicate ring positions in I, with the N atom attached to a CH2 gp. in the propylene-2-oxy gp.); R = H, O, NO gp., 1-12 C alkyl or alkoxy, allyl, 1-22 C acyl, benzyl or 3-12 C cycloalkoxy; R = H or 1-5 C alkyl; R + R + attached C atoms = 5-6 C cycloalkyl gp. or a gp. of formula; R , R = H, 1-30 C alkyl or 7-12 C phenylalkyl (opt. substd. with Cl or 1-4 C alkyl); or R + R + attached C atom = 5-18 C cycloalkyl (opt. substd. with up to four 1-4 C alkyl gps.) or a gp. of formula; if n = 1, R is absent, i.e. the O and the terminal CH2 gp. form an oxirane ring; if n = m > 1, R = H or 1-22 C acyl; or R may be absent in the terminal monomer unit with an oxirane ring present as above; HX = acid residue or a salt thereof with a protic acid; Hal = Cl, Br or I.

    PROCESS FOR THE PREPARATION OF POLYALKYL-1-OXA- DIAZASPIRODECANE COMPOUNDS
    8.
    发明专利
    PROCESS FOR THE PREPARATION OF POLYALKYL-1-OXA- DIAZASPIRODECANE COMPOUNDS 未知

    公开(公告)号：CA2142743A1

    公开(公告)日：1995-08-20

    申请号：CA2142743

    申请日：1995-02-17

    Applicant: HOECHST AG

    Inventor： GAA KARL ,  ZAH MATTHIAS

    IPC: C07D498/10 ,  C07D498/20 ,  C07D498/22 ,  C07D519/00 ,  C08G73/06 ,  C08K5/35

    Abstract: The invention relates to a process for the preparation of polyalkyl-1-oxa-diazaspirodecane compounds, which can be used as highly active light stabilizers for polymers. The reaction is carried out in an inert organic solvent in the presence of solid alkali metal hydroxide or of the corresponding amount of a mixture of solid alkali metal hydroxide and water as the sole catalyst. The process offers the advantage that, by changing the reaction procedure in a multiphase system and avoiding the use of a phase transfer catalyst, equally good results are achieved with regard to product quality and yield. Additionally, it is possible to reduce the reaction time from over 6 hours to 30 minutes. This results in a considerable rise in the space-time yield and consequently contributes, in addition, to an increase in the economy of the process of the invention.

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