Abstract: A multi-epoxidized biphenyl compound has the formula (I) below wherein R, R1, R2 and R3 are as defined in the description, as well as mixtures of at least two of the compounds. These multi-epoxidized biphenyl compounds are fully suitable as main constituents of thermosetting epoxy resins, i.e. as polyepoxides precursors. They are beneficial substitutes for bisphenol A diglycidyl ether.

Abstract: A difunctional biphenyl compounds corresponding to formula (I) wherein Alk, Alk? and R are as defined in the description. These compounds are suitable as hardeners for thermosetting resins, especially epoxy resins.

Abstract: A multi-epoxidized biphenyl compound has the formula (I) below wherein R, R1, R2 and R3 are as defined in the description, as well as mixtures of at least two of the compounds. These multi-epoxidized biphenyl compounds are fully suitable as main constituents of thermosetting epoxy resins, i.e. as polyepoxides precursors. They are beneficial substitutes for bisphenol A diglycidyl ether.

Abstract: A difunctional biphenyl compounds corresponding to formula (I) wherein Alk, Alk? and R are as defined in the description. These compounds are suitable as hardeners for thermosetting resins, especially epoxy resins.

Abstract: A process is provided for preparing a compound having the formula (I): said process being conducted by: a) the addition of an oxygen source into a solution of a compound of formula (II) in a water-miscible solvent, b) the addition of a laccase in the solution obtained in a); and c) the possible recovering of the compound of formula (I) thus obtained.

Abstract: The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

Abstract: The present invention relates to a compound that may be obtained according to a method comprising at least one polymerization step of at least one monomer of formula (I) below: wherein the polymerization step is carried out in the presence of a catalyst selected from the group consisting of: Zn(OAc)2, Ti(OBu)4, Ti(OiPr)4, Sb2O3, stannous octanoate, dibutyltin oxide, 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene, NaOMe, 1,5,7-triazabicyclo[4.4.0]dec-5-ene and Lipase B Candida Antartica.

Abstract: A polymer is provided having at least one repetitive unit represented by the following formula: And, preferably at least one, preferably at least two, repetitive units represented by the following formula:

Abstract: The present invention concerns the use of a compound having the following formula (I), for the preparation of a polymer. The present invention also concerns the polymers obtained from polymerization of compound of formula (I), and their processes of preparation.

Abstract: The present invention concerns a compound of formula (I): wherein: —n is an integer comprised between 1 and 7; —X1 is in particular a radical of formula —CH2—S—(CH2)k—S—; —A1 is in particular a linear or branched alkylene radical comprising from 2 to 30 carbon atoms, and —X2 is in particular an alkoxy group of formula ORa, wherein Ra is a linear or branched alkyl group comprising from 1 to 10 carbon atoms.

Abstract: A compound is of formula (I): in which A1 and A1? are independently from each other a linear or branched alkylene radical including from 1 to 20 carbon atom(s); A2 is in particular a linear or branched alkylene radical including from 1 to 200 carbon atom(s); A3 is H or a linear or branched alkyl radical including from 1 to 15 carbon atom(s) and R1 and R1? are independently from each other H or a linear or branched alkyl radical comprising from 1 to 20 carbon atom(s). The compounds of formula (I) can be used in particular for the preparation of poly(hydroxyurethane)s and epoxy resins.

Abstract: The present invention relates to the use of a compound having the following formula (I): in which: A1 represents a divalent alkylene radical comprising from 2 to 20 carbon atoms; A2 represents a divalent alkylene radical comprising from 2 to 20 carbon atoms; A3 is selected from the group consisting of the following divalent radicals: an alkylene comprising from 2 to 600; and an arylene comprising from 6 to 30 carbon atoms; X1, X3 and X4 represent —O— or —NH—; X?2 is selected from the group consisting of: —S—, —CH2— and a bond; and n and m represent an integer ranging from 1 to 1000; for the preparation of additives in a matrix of polyester, polyvinyl chloride, polyurethane, polyamide, poly(alkyl acrylate), poly(alkyl methacrylate), polystyrene or polyolefin.

Abstract: The present invention concerns a compound of formula (I): wherein:—n is an integer comprised between 1 and 7;—X1 is in particular a radical of formula —CH2—S—(CH2)k—S—;—A1 is in particular a linear or branched alkylene radical comprising from 2 to 30 carbon atoms, and—X2 is in particular an alkoxy group of formula ORa, wherein Ra is a linear or branched alkyl group comprising from 1 to 10 carbon atoms.

Abstract: The present invention concerns a polymer comprising:—at least one repetitive unit (V) having the following formula (T):(T)—and preferably at least one, preferably at least two, repetitive unit(s) (U) having the following formula (D):(D).

Abstract: The present invention concerns the use of a compound having the following formula (I), for the preparation of a polymer. The present invention also concerns the polymers obtained from polymerization of compound of formula (I), and their processes of preparation.

Abstract: The present invention relates to a process for preparing a compound having the formula (I), said process comprising the following steps: a) the addition of an oxygen source into a solution of a compound of formula (II), in a water-miscible solvent, b) the addition of a laccase in the solution obtained after step a); and c) the possible recovering of the compound of formula (I) thus obtained.

Abstract: The present invention relates to the use of a compound of formula (I): wherein: R represents a linear or branched alkyl group, comprising from 3 to 27 carbon atoms, said alkyl group being substituted with at least two hydroxyl groups, and which may optionally contain one or more unsaturations; and R? is selected from sugars or sugar-alcohols; for preparing polyurethanes and polyesters.

Abstract: The present invention relates to the use of polymers of the following formula (I): wherein: A1i represents a radical alkylene divalent comprising from 2 to 20 carbon atoms; A2i represents a radical alkylene divalent comprising from 2 to 20 carbon atoms; X1i is chosen from the group consisting of: —S—, —CH2— and a bond; Y represents H, a phenyl group or an alkyl group comprising from 1 to 10 carbon atoms; i represents an integer varying from 1 to n; n represents an integer comprised from 2 to 1,000; provided that the total number of carbon atoms of the radicals A2i, X1i et A1i is greater than or equal to 8; as additives in a polymeric matrix chosen from the group consisting of matrices of polyester, poly(vinyl chloride), polyurethane, polyamide, poly(alkyl acrylate), poly(alkyl methacrylate), polystyrene and polyolefin, said polymer of formula (I) being different from poly(ricinoleic acid).

Abstract: The present invention relates to the use of a compound of formula (I): wherein: —R represents —OH or —NH2; —A1 represents a divalent alkylene radical, straight or branched, having from 2 to 20 carbon atoms; —A2 represents a divalent alkylene radical, straight or branched, having from 1 to 20 carbon atoms; —X1 and X2 represent, independently of each other, —NH— or —O—; —A3 represents a divalent alkylene radical, straight or branched, having from 1 to 10 carbon atoms; —Z represents a hydrogen or a group of formula (A?): wherein A1, A3 and R are as defined above in formula (I), for the preparation of a polymer chosen among polyurethane, polyester and polyamide.

Abstract: The present invention relates to a method for preparing polyols of formula (I?) R?1 being H or an alkyl group, R? being especially an alkyl group, A1, being an alkylene radical and R3, are being especially a group -A2-O—Y?, A2 being an alkylene radical and Y? being especially H, said method especially comprising a step of epoxidation of a compound of formula R?1 being H or an alkyl group, At being defined as above in formula (I?) and R4 being especially a group -A2-O—Y1?, A2 being defined as above in formula (I?) and Y?1 being especially H, in order to obtain a compound of formula A1 being defined as above, R??1 being H or an alkyl group and R5 being especially a group of formula -A2-O—Y2?, A2 being as defined above in formula (I?) and Y?2 being especially H.