Abstract: The present invention relates to a thermosetting resin composition comprising (A) An unsaturated polyester resin comprising fumaric acid building blocks and/or a methacrylate functional resin, whereby the resin has a molecular weight Mn of from 450 up to and including 10000 Dalton and the amount of such unsaturated polyester resin and methacrylate functional resin is from 30 up to and including 80 wt. %; (B) An ethylenically unsaturated compound copolymerizable with (A); present in an amount from 10 up to and including 60 wt. %; (C) A core-shell rubber in an amount from 0.1 up to 6 wt. %, whereby the core has a Tg of less than ?30° C. and the average particle diameter of the core-shell rubber is from 50 up to and including 1000 nm; and (D) An epoxy compound in an amount from 0.3 up to and including 10 wt. %; whereby the amounts are given relative to the total weight (in g) of the summed amount of (A), (B), (C) and (D).

Abstract: The present invention relates to a peroxide composition comprising an organic peroxide, wherein the peroxide is an organic monoperoxycarbonate R—O—CO—O—O-tertiar butyl where R is a C1-C6 alkyl and the peroxide composition further comprises a polyalkylene polyol.

Abstract: This invention relates to an unsaturated polyester resin composition characterized in that the resin composition comprises a. An unsaturated polyester resin comprising fumaric, maleic and/or itaconic building blocks, b. At least one vinyl ester as reactive diluent, c. An iron complex and/or salt, and d.

Abstract: There is described a process for producing a gel free hyperbranched polyamide polymer P having a polydispersity of at least 1.1 and a weight average molecular weight of at least 300 daltons, having primary amino groups (useful as a crosslinker). The process comprises the step of reacting Reagent A, a compound comprising at least one amino group (—NH2) and one functional group selected from the group consisting of a further amino group (—NH2), thiol (—SH) and a secondary amine radical (—NHR); (where R denotes a hydrocarbo group) (=functional amine) and Reagent B, an alpha-beta unsaturated Michael-reactive ester comprising a plurality of ester groups (=diester); in a molar ratio of amine A to diester B greater than 1 but less than 3 (preferably 2.1 to 2.9); to form the polyamide in a two stage reaction Michael addition and then amidation.

Abstract: The present invention relates to an unsaturated polyester resin comprising itaconate esters as reactive unsaturations, wherein the acid value of the resin is in the range of from 25 to 125 and the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 0.33 to 3. In one embodiment, the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 0.33 to 0.9. In another embodiment, the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 1.1 to 3.

Abstract: The present invention also relates to a vinyl ester resin composition, wherein the vinyl ester resin composition comprises a vinyl ester resin and a manganese compound, a 1,3-dioxo compound, a base; and the resin being curable with a peroxide. The present invention also relates to a process for radically curing such a resin composition wherein a peroxide is added to the resin composition and the curing is effected essentially free of cobalt.

Abstract: The present invention relates to a two-component composition comprising a first component and a second component, wherein the first component being a pre-accelerated resin composition comprising an unsaturated polyester resin or vinyl ester resin and a copper2+ compound, at least one N-containing organic base selected from an amine compound and/or an ammonium salt; and wherein copper is present in an amount of at least 50 ppm (relative to the primary resin system), wherein the resin composition contains less than 0.01 mmol cobalt per kg primary resin system, the resin composition has an acid value in the range of from 0.001-300 mg KOH/g of resin composition, the molecular weight of the resin containing reactive unsaturations is in the range of from 500 to 200,000 g/mole and wherein the second component comprises a peroxide compound.

Abstract: This invention relates to unsaturated polyester resin or vinyl ester resin compositions comprising a polymer containing reactive unsaturations as a resin; a 1,3-dioxo-component, and optionally a reactive diluent and/or an inhibitor and/or a stabilizer; the resin compositions being curable with a peroxide component, and wherein the resin in the resin composition has an acid value=10; and the resin composition contains—while being cured—a base, which is either selected from the group of organic or inorganic oxides, hydroxides, alkoxides or carboxylates for each of which the cation has a redox potential of the metal of at most ?1V, or of ammonium ions; or is selected from the group of nitrogen-containing organic compounds. The present invention also relates to objects and structural parts prepared from such resin composition by curing with a peroxide.

Abstract: The present invention relates to a process for radically curing a composition comprising a methacrylate containing compound (a1) and a monomer copolymerizable with said methacrylate containing compound in the presence of tertiary aromatic amine (c) and a peranhydride (d), wherein the composition comprises a compound (b) according to formula (1) as monomer copolymerizable with said methacrylate containing compound whereby n=0-3; R1 and R2 each individually represent H, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 alkylaryl or C7-C20 arylalkyl; X?O, S or NR3 whereby R3?H, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 alkylaryl, C7-C20 arylalkyl, part of a polymer chain or attached to a polymer chain.

Abstract: The present invention relates to unsaturated polyester resin compositions comprising (a) an unsaturated polyester, (b) a vinyl group containing organic compound as reactive diluent and (c) a tertiary aromatic amine, wherein the resin composition further comprises (d) a compound according to formula (1) as reactive diluent whereby n=0-3; R1 and R2 each individually represent H, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 alkylaryl or C7-C20 arylalkyl; X=O, S or NR3 whereby R3=H, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 alkylaryl, C7-C20 arylalkyl, part of a polymer chain or attached to a polymer chain, and the resin composition comprises, as vinyl group containing organic compound (b), styrene, a styrene derivative, a vinyl ether, a vinyl amine or vinyl amide or a mixture of at least two of these compounds.

Abstract: The present invention relates to a process for radically curing a composition comprising a methacrylate containing compound (a1) and a monomer copolymerizable with said methacrylate containing compound in the presence of a 5 transition metal compound (c) and a peroxide, wherein the composition comprises a compound (b) according to formula (1) as monomer copolymerizable with said methacrylate containing compound whereby n=0-3; R1 and R2 each individually represent H, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 alkylaryl or C7-C20 arylalkyl; X=O, S or NR3 whereby R3=H, C1C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 alkylaryl, C7-C20 arylalkyl, part of a polymer chain or attached to a polymer chain, and the composition comprises at least one transition metal compound (c) selected from the group consisting of Co, Cu, Mn and Fe compounds, and the curing is effected in the presence of a peroxide selected from the group consisting of hydroperoxides, perketals, peresters, percarbonates and mixtures ther

Abstract: The present invention relates to structural, radically curable resin compositions suitable for (re)lining containing a. 30-70 wt. % of a resin characterized by (i) a molecular weight Mn between 500 and 3000 and (ii) an acid value between 0 and 30 mg KOH/g resin, and wherein at least 80 % of the total amount of resin is vinyl ester resin, b. 30-70 wt. % of at least one reactive diluent, characterized in that at least 25% of the reactive diluent is a difunctional diluent having a molecular weight Mn between 200 and 500 and the optional monofunctional diluent having a molecular weight Mn between 100 and 200, c. 0.00001-5 wt. % initiator, d. 0.00001-5 wt. % inhibitor further characterized in that the average molecular weight per reactive unsaturation (WPU) of the components (a) and (b) is equal or greater than 190 Dalton and that the amount of styrene in the resin composition is less than 5 wt. % (calculated as wt. % of the total weight of the components (a), (b), (c) and (d)).

Abstract: Structural, radically curable resin compositions suitable for (re)lining contain: a. 30-70 wt. % of a resin characterized by (i) a molecular weight Mn between 500 and 3000 and (ii) an acid value between 0 and 30 mg KOH/g resin, and wherein at least 80% of the total amount of resin is vinyl ester resin, b. 30-70 wt. % of at least one reactive diluent, characterized in that at least 25% of the reactive diluent is a difunctional diluent having a molecular weight Mn between 200 and 500 and the optional monofunctional diluent having a molecular weight Mn between 100 and 200, c. 0.00001-5 wt. % initiator, d. 0.00001-5 wt. % inhibitor. wherein the average molecular weight per reactive unsaturation (WPU) of the components (a) and (b) is equal or greater than 190 Dalton and that the amount of styrene in the resin composition is less than 5 wt. % (calculated as wt. % of the total weight of the components (a), (b), (c) and (d)).

Abstract: The present invention relates to unsaturated polyester resin composition comprising an unsaturated polyester resin, a manganese compound, a 1,3-dioxo compound and a base; the molar ratio between the dioxo compound and the basic functionality of the base is from 170:1 to 1:30 and the resin composition being curable with a peroxide. The present invention further relates to a process for radically curing such a resin composition wherein a peroxide is added to the resin composition and the curing is effected in the absence of cobalt.

Abstract: The invention relates to a heat-curable powder coating composition comprising i) at least one crystalline polyester resin present in an amount of at most 90 wt %; and ii) at least one amorphous polyester resin; and iii) at least one crosslinking agent; and iv) at least one thermal radical initiator, wherein, the at least one crystalline polyester resin and/or the at least one amorphous polyester resin has di-acid ethylenic unsaturations; wherein the at least one crosslinking agent is either crystalline or amorphous; wherein the at least one crosslinking agent has reactive unsaturations that are reactable with the ethylenic unsaturations of the di-acid ethylenic unsaturations of the at least one crystalline polyester resin and/or the at least one amorphous polyester resin to be crosslinked, said unsaturations of the crosslinking agent are different from the unsaturations of the at least one crystalline polyester resin and the unsaturations of the at least amorphous polyester resin; wherein the wt % is based on

Abstract: Use of a transition metal complex a) as a drier for air drying auto-oxidative resin composition comprising a polymer b) comprising unsaturated fatty acid residues, wherein the transition metal complex a) has a cation of the following structure (I) wherein R=C1-C20 alkyl optionally substituted with heteroatoms, C6-C20 aryl optionally substituted with heteroatoms, or a polymeric residue; R1=H, C1-C20 alkyl optionally substituted with heteroatoms, C6-C20 aryl optionally substituted with heteroatoms; X=O, OC(R2)O in which a=4 when X=O, and a=3 when X=OC(R2)O, R2=C1-C20 alkyl optionally substituted with heteroatoms, C6-C20 aryl optionally substituted with heteroatoms, or a polymeric residue.

Abstract: The present invention relates to a pre-accelerated resin composition comprising an unsaturated polyester resin and/or a vinyl ester resin, wherein the composition further comprises a. a copper salt, and b. a compound according to formula (1) in which R can be selected from H, optionally substituted C1-C20 alkyl, optionally substituted C6-C20 aryl, and wherein the copper is present in an amount of more than 0.1 mmol/kg resin.

Abstract: Two component resin system consisting of a first component A and a second component B characterized in that component A comprises: a. a compound capable of undergoing a radical copolymerization selected from the group consisting of unsaturated polyester resins, vinyl ester resins and mixtures thereof, b. an epoxide functional resin as compound capable of reacting with an aliphatic amine and in that component B comprises a mixture of c. an aliphatic amine d. a perester.

Abstract: The present invention relates to a multicomponent resin system comprising a. a compound capable of undergoing a radical copolymerization selected from the group consisting of unsaturated polyester resins, vinyl ester resins and mixtures thereof b. an epoxide functional resin as compound capable of reacting with a primary and/or secondary aliphatic amine, c. a transition metal compound, d. a primary and/or secondary aliphatic amine characterized in that the transition metal is selected from the group consisting of Cu, Mn, Fe and mixtures thereof.

Abstract: The present invention relates to a resin composition comprising (a) an unsaturated polyester resin having a molecular weight Mn of at least 750 Dalton and at most 5000 Dalton and (b) a reactive diluent, wherein the unsaturated polyester resin comprises C5-C10 unsaturated diacid building blocks and isosorbide building blocks. Preferably, at least part of the isosorbide is derived from a non-fossil source. Preferably, itaconic acid or anhydride is used as the C5 unsaturated dicarboxylic acid.