The present invention relates to a polyester resin comprising a biomass-derived monomer and a preparation method therefor, and a powder paint composition comprising the resin and, more specifically, to a polyester resin and a preparation method therefor, and a powder paint composition comprising the resin, wherein the polyester resin comprises, as a repeat unit, a biomass-derived unit having improved reactivity and being derived from an anhydrosugar alcohol or a derivative thereof, thereby solving the problem of the depletion of petroleum resources corresponding to limited resources, exhibiting eco-friendliness and high-heat resistance, and remarkably improving weather resistance and flexibility of a coating film when used for a powder paint.

The present invention relates to a polyester resin comprising a biomass-derived monomer and a preparation method therefor, and a powder paint composition comprising the resin and, more specifically, to a polyester resin and a preparation method therefor, and a powder paint composition comprising the resin, wherein the polyester resin comprises, as a repeat unit, a biomass-derived unit having improved reactivity and being derived from an anhydrosugar alcohol or a derivative thereof, thereby solving the problem of the depletion of petroleum resources corresponding to limited resources, exhibiting eco-friendliness and high-heat resistance, and remarkably improving weather resistance and flexibility of a coating film when used for a powder paint.

The present invention is concerned with a reactive surfactant composition for emulsion polymerization, which is able to micronize the particle diameter of a polymer emulsion and to reduce the addition amount of the reactive surfactant composition to be used.

The reactive surfactant composition for emulsion polymerization of the present invention contains a reactive anionic surfactant (component A) represented by the following formula (I), the component A being satisfied with the following requirement R:

##STR00001## wherein AO represents an alkyleneoxy group having a carbon number of 3 or more and 18 or less; EO represents an ethyleneoxy group; p represents an integer of 1 or more and 15 or less; m represents an integer of 0 or more; n represents an integer of 0 or more; W represents a hydrogen ion or a cation; and plural kinds of AOs may coexist.

Requirement R: An average addition molar number m of AO is a number of 1 or more and 50 or less; an average addition molar number n of EO is a number of 0 or more and 200 or less; and when in the component A, a component having an addition molar number of AO of (m3) or less is defined as (component A-1), and a component having an addition molar number of AO of (m+2) or more is defined as (component A-2), X in the following formula (I) is less than 30, provided that when m is less than 3, (m=0) is defined as (component A-1):

X={(molar number of component A-1)+(molar number of component A-2)}(molar number of component A)100(I).

The invention relates to inorganic-organic hybrid materials comprising interpenetrated organic and inorganic components, wherein the organic component comprises polymer chains formed at least in part by ring-opening polymerization of a cyclic monomer, and processes for the production thereof.

Variation in the shape and size or disturbance of the molecular orientation of a particle is prevented. A liquid crystal polymer particle of the disclosure has a crosslinked structure in which liquid crystal polymers are crosslinked by a crosslinkable functional group that is not crosslinked in a polymerization reaction for synthesizing the liquid crystal polymer particle. The particle has the crosslinked structure due to a crosslinkable functional group that is not crosslinked in the polymerization reaction.

A toughened epoxy resin composition includes an end-capped polyalkylene oxide (A), an epoxy resin (B), an epoxy curing agent (C), and a core shell polymer (D). The end-capped polyalkylene oxide (A) has a number average molecular weight of 1500 to 5000, and 40% or more of a total number of ends of the end-capped polyalkylene oxide (A) are capped with at least one selected from the group consisting of an alkyl group, an allyl group, and an aryl group. A weight ratio of the end-capped polyalkylene oxide (A) to the core shell polymer (D) is 10/90 to 90/10. The core shell polymer (D) comprises a core layer in an amount of 70 to 95% by weight and the core layer is one or more selected from the group consisting of diene rubber, (meth)acrylate rubber, organosiloxane rubber, styrene polymer, and (meth)acrylate polymer.

A toughened epoxy resin composition includes an end-capped polyalkylene oxide (A), an epoxy resin (B), an epoxy curing agent (C), and a core shell polymer (D). The end-capped polyalkylene oxide (A) has a number average molecular weight of 1500 to 5000, and 40% or more of a total number of ends of the end-capped polyalkylene oxide (A) are capped with at least one selected from the group consisting of an alkyl group, an allyl group, and an aryl group. A weight ratio of the end-capped polyalkylene oxide (A) to the core shell polymer (D) is 10/90 to 90/10. The core shell polymer (D) comprises a core layer in an amount of 70 to 95% by weight and the core layer is one or more selected from the group consisting of diene rubber, (meth)acrylate rubber, organosiloxane rubber, styrene polymer, and (meth)acrylate polymer.

The present invention provides an optical composition from which an optical article having reduced poor appearance such as cloudiness and optical strain during lens base material production can be obtained, and when a photochromic compound is added, a photochromic cured body having excellent photochromism and mechanical strength can also be formed, and a polyrotaxane used therefor. The polyrotaxane has a composite molecular structure formed of an axle molecule and a plurality of cyclic molecules clathrating the axle molecule, satisfying at least one of (X) and (Y). (X): A side chain having a secondary or tertiary hydroxyl group is introduced into at least part of the cyclic molecule of the polyrotaxane. (Y): A side chain having a group represented by -A (A is an organic group, and contains at least one hydroxyl group) is introduced into at least part of the cyclic molecule of the polyrotaxane, and a pKa of the hydroxyl group of the compound represented by H-A is 6 or more and less than 14.

The present invention provides an optical composition from which an optical article having reduced poor appearance such as cloudiness and optical strain during lens base material production can be obtained, and when a photochromic compound is added, a photochromic cured body having excellent photochromism and mechanical strength can also be formed, and a polyrotaxane used therefor. The polyrotaxane has a composite molecular structure formed of an axle molecule and a plurality of cyclic molecules clathrating the axle molecule, satisfying at least one of (X) and (Y). (X): A side chain having a secondary or tertiary hydroxyl group is introduced into at least part of the cyclic molecule of the polyrotaxane. (Y): A side chain having a group represented by -A (A is an organic group, and contains at least one hydroxyl group) is introduced into at least part of the cyclic molecule of the polyrotaxane, and a pKa of the hydroxyl group of the compound represented by H-A is 6 or more and less than 14.

The invention relates to a 1C system and a method for manufacturing semifinished products (prepregs) and components with the 1C system. The problem is solved by a 1C system comprised of an epoxy resin and a secondary amine; the secondary amine is imidazole, an imidazole derivative or a complex of the general formula MeL.sub.4X.sub.2, wherein Me is a bivalent metal cation selected from copper, cobalt, nickel and zinc, L is a ligand selected from imidazole and an imidazole derivative, and X is an anion selected from fluoride, chloride, bromide, iodide and nitrate. Furthermore, the invention includes a method for manufacturing impregnated semifinished products for the production of duroplastic fiber-reinforced components using a 1C system.