Abstract:
PROBLEM TO BE SOLVED: To provide a stabilizer against the actions of light, oxygen, and heat.SOLUTION: There is provided use of such polynuclear phenolic compounds as stabilizers to stabilize inanimate, organic materials against the action of light, oxygen, and heat, as have up to 20 benzene nuclei in the molecule and are obtained by the reaction of tetrahydrobenzoxazine expressed by general formula (I), with one or plural, identical or different phenols expressed by specific formulae and/or with one or plural, identical or different tetrahydrobenzoxazines [in the formula, substituent Ris a (1-3,000)C hydrocarbyl group, which may be interrupted with one or plural heteroatoms selected from the group constituting of O and S, and/or with one or plural NRgroups, wherein Ris hydrogen or a (1-4)C alkyl group, and substituents R, R, R, and Rare each independently, a hydrogen atom, a hydroxy group, or a (1-3,000)C hydrocarbyl group, which may be interrupted with one or plural heteroatoms selected from the group consisting of O and S, and/or with one or plural NRgroups, wherein Ris the same as defined above].
Abstract:
A method for the removal of isobutene oligomers from an isobutene polymer is disclosed, wherein the isobutene polymer is stripped with vapours of a saturated hydrocarbon having at least 8 carbon atoms and the isobutene oligomers are at least partly driven off. Problematic isobutene oligomers are largely removed without affecting the reactivity of the isobutene polymer (expressed as content of methylidene double bonds).
Abstract:
Disclosed is the production of isobutylene homopolymer or copolymer derivatives comprising a hydrophobic polyisobutylene polymer residue that has a number average molecular weight of 110 to 250,000 and low-molecular polar groups containing amino functions, nitro groups, hydroxyl groups, mercaptan groups, carboxylic acid or carboxylic acid derivative functions, sulfonic acid or sulfonic acid derivative functions, aldehyde functions and/or silyl groups. According to the invention, isobutylene or a monomer mixture containing isobutylene is polymerized in the presence of an iron halide donor complex acting as a polymerization catalyst, an aluminum trihalide donor complex or an aluminum alkyl halide donor complex containing an organic compound having an ether function or a carboxylic acid ester function as a donor, or a Lewis acid complex containing organic sulfonic acids and optional donors, the resulting highly reactive isobutylene polymer is reacted with a compound introducing the low-molecular polar group or a substructure thereof, and in case the reaction is performed using a substructure, the formation of the low-molecular polar group is completed by performing successive reactions.
Abstract:
Disclosed is the production of isobutylene copolymer derivatives by radically copolymerizing (a) 10 to 90 mol-% of a monoethylenically unsaturated C4 to C12 dicarboxylic acid or the anhydride, half-ester or full ester thereof, (b) 10 to 90 mol-% of a highly reactive isobutylene polymer having a number average molecular weight of 110 to 250,000, and (c) 0 to 50 mol-% of monoethylenically unsaturated compounds that can be copolymerized with monomer components (a) and (b), and then reacting the carboxylic acid or carboxylic acid derivative functions in the obtained isobutylene copolymer with ammonia, an amine and/or an alcohol so as to form groupings having hydroxy, carboxylic acid ester, amino, quaternized amino, amido and/or imido groups. In order to produce monomer component (b), isobutylene or a monomer mixture containing isobutylene is polymerized in the presence of an iron halide donor complex acting as a polymerization catalyst, an aluminum trihalide donor complex or an aluminum alkyl halide donor complex containing an organic compound having an ether function or a carboxylic acid ester function as a donor, or a Lewis acid complex containing at least one organic sulfonic acid and optional donors.
Abstract:
The invention relates to a method for production of polyisobutyl succinate anhydrides with a mean molar ratio of succinic anhydride groups to polyisobutyl groups of from 10:1 to 1.3:1 by thermal reaction of highly reactive polyisobutenes with a number average molecular weight Mn of 350 to 50,000 and with a content of terminal vinylic double bonds of more than 90 mol % with maleic acid or maleic anhydride in a molar ratio of from 1:3 to 1:0.95. The polyisobutyl succcinate anhydrides thus obtained are suitable for production of polyisobutyl succinate anhydrides useful as additives in fuel or lubricant compositions, which have at least one primary or secondary amino group, an imino group and/or a hydroxy group.
Abstract:
Uso de compuestos fenólicos de fórmula general V **(Ver fórmula)** en la que el sustituyente R1 designa un resto hidrocarbilo con de 1 a 3000 átomos de carbono, que puede estar interrumpido por uno o varios heteroátomos del grupo de O y S y/o por una o varias agrupaciones NR6, en donde R6 designa un átomo de hidrógeno o un resto alquilo C1 a C4, en la que los sustituyentes R2, R3, R4, R5, R8, R9 y R10 representan independientemente entre sí átomos de hidrógeno o restos hidrocarbilo con en cada caso de 1 a 3000 átomos de carbono, que pueden estar interrumpidos por uno o varios heteroátomos del grupo de O y S y/o por una o varias agrupaciones NR6, en donde R6 tiene el significado mencionado anteriormente, en donde el sustituyente R9 puede representar también un resto de fórmula Z' **(Ver fórmula)** en la que los sustituyentes R7, R8 y R10 representan independientemente entre sí átomos de hidrógeno, grupos hidroxilo o restos hidrocarbilo con en cada caso de 1 a 3000 átomos de carbono, que pueden estar interrumpidos por uno o varios heteroátomos del grupo de O y S y/o por una o varias agrupaciones NR6, en donde R6 tiene el significado mencionado anteriormente, el sustituyente R7 también puede ser un resto derivado de una tetrahidrobenzoxazina de fórmula general I **(Ver fórmula)** , el sustituyente R15 representa hidrógeno o un resto derivado de una tetrahidrobenzoxazina de fórmula general I y los sustituyentes R11 y R12 pueden ser iguales o distintos y designan hidrógeno o un resto alquilo C1 a C10, y con la condición de que al menos uno de los sustituyentes R1, R2, R3, R4, R5, R8, R9 y R10 presente de 13 a 3000 átomos de carbono y los sustituyentes restantes del grupo de R1, R2, R3, R4, R5, R8, R9 y R10, cuando representan restos hidrocarbilo, presentan cada uno de ellos de 1 a 20 átomos de carbono, como antioxidantes para la estabilización de material orgánico no vivo contra la acción de luz, oxígeno y calor.
Abstract:
Procedimiento para la preparación de 2-alquil-poliisobutenilfenoles y sus productos de adición de Mannich, en el cual se ponen en contacto a) al menos un compuesto 2-alquilohidroxiaromático que se selecciona entre compuestos de la fórmula general I**Fórmula** en la cual R1 representa alquilo de C1-C20 y R2 representa hidrógeno, alquilo de C1-C20, hidroxilo o alquilo de C2-C4000, que está interrumpido por al menos una agrupación que se selecciona entre O, S y NR3, en cuyo caso R3 representa hidrógeno, alquilo, cicloalquilo o arilo, con una fuente catalíticamente efectiva de BF3, que es capaz de formar complejos con el compuesto de 2- alquilhidroxilo y se alquila con poliisobutenos que en esencia son etilénicamente monoinsaturados y en esencia son homopoliméricos y que tienen un peso molecular numéricamente medio Mn en el intervalo de 200 a 500000 y contienen al menos un 50 % molar, con respecto a la cantidad total de macromoléculas de poliisobutenos, de enlaces dobles dispuestos terminalmente que son enlaces dobles de vinilo o enlaces dobles de vinilideno, seleccionándose la fuente de BF3 empleada en la etapa a) entre complejos de BF3 que tienen al menos uno de los complejos 2-alquilhidroxiaromáticos empleados en la etapa a).
Abstract:
Use of tetrahydrobenzoxazine compound (I) as stabilizers for the stabilization of dead organic materials against light, oxygen and heat. Use of tetrahydrobenzoxazine compound of formula (I) as stabilizers for the stabilization of dead organic materials against light, oxygen and heat. R 1> : 1-3000C hydrocarbyl (interrupted by one or more heteroatoms of O or S, and one or more NR 6>); R 6> : H or 1-4C alkyl; either R 2>, R 3>, R 5> : H, OH or 1-3000C hydrocarbyl (interrupted by one or more heteroatoms of O or S, and one or more NR 6>); and R 4> : H, OH or 1-3000C hydrocarbyl (interrupted by one or more heteroatoms of O or S, and one or more NR 6>); or R 4> : benzoxazine compound of formula (II), benzoxazine compound of formula (III) or (III-a); or R 2>+R 3> with benzol, R 3>+R 4> with benzol, R 4>+R 5> with benzol : O-CH 2-NR 7>-CH 2, O-CH 2-NR 8>-CH 2 or tetrahydro oxazine ring; X : hydrocarbon bridge containing one or more isobutene units; R 10>, R 11> : H or 1-10C-akyl; and R 7>, R 8> : 1-3000C hydrocarbyl (interrupted with one or more heteroatom of O or S, and one or more NR 6>). Where at least R 1>-R 8> has 4-3000C atoms and the remaining groups has 1-20C atoms. Independent claims are included for: (1) turbine fuel composition comprising a turbine fuel (jet fuel) and at least (I); (2) an additive concentrate for turbine fuels comprising (I), optionally at least a diluent and an additive; (3) a preparation of (I) comprising reacting substituted phenol, benzcatechin, resorcin, hydroquinone, phloroglucin or hydroxyhyroquinone with one mole of primary amine of formula (R 1>NH 2), (R 7>-NH 2) or (R 8>-NH 2), and two mole of formaldehyde or formaldehyde-free substance and two mole of alcohol of formula (R 9>-OH) in the presence of nitrogen reagent of formula (R 9>-O-CH 2-N(A)-CH 2-O-R 9>); and (4) tetrahydrobenzoxazine compound (I). A : R 1> or R 7>; and R 9> : 1-8C alcohol. [Image] [Image].