Disclosed are a triazine ring-containing polymer having a repeating unit that comprises a structural unit derived from a triazinedithiol compound, the triazine ring-containing polymer having a yellowness index of less than 3 and comprising terminal SH groups, wherein at least a portion of the SH groups are capped with a hydrocarbon group, and a number of the SH groups in the triazine ring-containing polymer is less than about 1×10.sup.18 per gram of the polymer, and a thermoplastic article and optical part including the polymer.

The present invention relates to an n-type conductive composition comprising a rigid conjugated polymer having a dihedral angle from 0° to 20° and an n-type polymeric cation. Further, the present invention relates to an n-type conductive ink comprising such a composition.

Provided is a prepreg for producing a multilayer printed wiring board having high reliability and being excellent in adhesiveness with respect to a base material or the like. The prepreg includes: a base material; and a polymer having a structural unit represented by at least one kind of the following formulae (1-1), (1-2), and (1-3).

##STR00001##

Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that in a first aspect comprise a crosslinker component that comprises a structure of the following Formula (I): ##STR00001##

The invention relates to an amine terminated prepolymer and to a curable composition containing this prepolymer. These compositions are used to make sealants, coatings or adhesives useful in the field of construction, public works and civil engineering.

Disclosed herein are polymers containing repeating units of formula (I) or copolymers containing the repeating units of formula (I) and (II), where R.sup.1 to R.sup.12, m, n, p, q, x and y are as defined herein. The polymers and copolymers have an antimicrobial effect and may be used therapeutically or in formulations intended for use as detergents.

The present invention discloses a polymerized high-molecular-weight sterically hindered amine having a general formula I, the sterically hindered amine has the advantages of high molecular weight, difficult migration in polymer products, good thermal stability, etc., and can stabilize and/or be flame retardant to organic substances sensitive to light, heat or oxidation, and furthermore, can be made to have better compatibility with different types of polymer materials by changing substituents.

##STR00001##

A triazine-ring-containing polymer characterized by including a repeating unit structure represented by formula (1). ##STR00001##
[In the formula, R and R′ each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group, and Ar represents at least one selected from the group shown by formulas (2) and (3). ##STR00002##
[in the formulas, W.sup.1 and W.sup.2 each independently represent CR.sup.1R.sup.2 (R.sup.1 and R.sup.2 each independently represent a hydrogen atom or a C1-10 alkyl group optionally substituted by a halogen atom (where these together may form a ring)), C═O, S, SO, or SO.sub.2.]]

A curable resin composition having fast-curing properties, high heat resistance, and excellent infiltration properties. The composition contains: a cyanate ester resin, an epoxy resin, a latent curing agent, and an inorganic pigment containing at least one metal selected from titanium, iron, copper, chromium, zirconium, calcium, manganese, and zinc. The inorganic pigment preferably has a primary particle size of 5 to 150 nm. The inorganic pigment is preferably present in an amount of 0.01 to 10 parts by mass per 100 parts by mass of the sum of the cyanate ester resin and the epoxy resin.

Thermoplastic polyamide particles comprising at least one polyamide and at least one polymeric ionic compound comprising imidazolium groups (imidazolium compound), the thermoplastic polyamide particles having an ellipsoidal or approximately ellipsoidal shape with the largest diameter of 1 to 100 mm, preferably 2 to 10 mm, more preferably 3 to 8 mm.