A polyaspartic coating composition containing (A) an aspartic acid ester compound represented by the following formula (I)

##STR00001##

wherein X is an n-valent organic group, and R.sub.1 and R.sub.2 are organic groups which are inert to the isocyanate group under a reaction condition, and n is an integer of 2 or more, and (B) a polyisocyanate component obtained by reacting one or more diisocyanate monomers selected from the group consisting of an aliphatic and alicyclic diisocyanate with a polycaprolactone polyol having a number-average molecular weight of 500 to 1,500, wherein a ratio of the polycaprolactone polyol to a total amount of the polyol is 20% by mass or more, the polyisocyanate component contains 10.0% by mass or less of an isocyanurate trimer, and an average number of isocyanate groups of the polyisocyanate component (B) is 2.4 to 8.0.

A water-dispersible polyisocyanate contains an isocyanate group and a sulfone group. The water-dispersible polyisocyanate contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component. The polyisocyanate component contains a first polyisocyanate containing pentamethylene diisocyanate and a second polyisocyanate containing polyisocyanate having 6 or more carbon atoms. The hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound. The first polyisocyanate is contained in an amount of 40% by mass or more and 90% by mass or less relative to the total amount of the first polyisocyanate and the second polyisocyanate.

A thin self-supporting adhesive film is claimed that includes a first polyurethane and a solid surface-deactivated isocyanate.

The invention relates to a process for the preparation of polyisocyanates with dimer, trimer and/or allophanate and optionally urethane structure.

Disclosed is an aliphatic polyisocyanate composition, wherein the molar ratio of an iminooxadiazinedione structure to an isocyanurate structure is 0.01-0.8:1, and the molar ratio of an iminooxadiazinedione structure in a polymer larger than three molecules to the iminooxadiazinedione structure in the composition is 0.2-0.8:1. Provided are a method for preparing the aliphatic polyisocyanate composition, and a coating composition. The aliphatic polyisocyanate composition has both a lower viscosity and a better crosslinking property. The composition can significantly reduce the usage amount of a solvent when used in a coating composition, is more environmentally friendly and also has a better paint film property. The preparation method has a simple process and mild conditions, is easy to operate and control, and is suitable for industrial scale production.

Provided are a polymer for an organic bottom anti-reflective coating and a bottom anti-reflective coating composition containing the same. More specifically, provided are a polymer for an organic bottom anti-reflective coating capable of relieving reflection of exposure light and irradiation light on a substrate of a photoresist layer applied on the substrate in a lithographic process of manufacturing a semiconductor device, and a bottom anti-reflective coating composition containing the same.

Provided is a process for producing a polyisocyanurate comprising: trimerizing an aliphatic polyisocyanate with a trimerization catalyst in the presence of a thermally decomposable acid at a molar ratio of acid to catalyst of from 0.1 to 10, wherein the polyisocyanurate has a greater pot life than the pot life of the polyisocyanurate not containing the thermally decomposable acid. Polyisocyanurates made according to the inventive process lengthen the pot life of pultrusion composite formulations made therefrom without affecting the reactivity of the formulations. The pultrusion composite formulations of the invention may be cured and pultruded to yield a variety of products such as wind turbine blades, yacht shells, window frames, door frames, ladder frames, telegraph pole cross arms, tent poles, solar cell frames, solar cell backsheets, radomes, highway guard rails, floor boards, pipes, telegraph poles, auto trunks, luggage holders, engine covers, golf clubs, tennis poles, badminton poles, bicycle frames, surfboards, and snowboards.

The present invention relates to novel polyisocyanurate plastics which are obtainable by catalytic trimerization of a polyisocyanate composition A) which contains oligomeric polyisocyanates and is low in monomeric diisocyanates. “Low in monomeric diisocyanates” means that the polyisocyanate composition A) has a content of monomeric diisocyanates of at most 20% by weight. The invention further relates to the use of these polyisocyanurate plastics for production of coatings, films, semi-finished products and mouldings, and to a process for producing polyisocyanurate plastics comprising the following steps: (a) providing a polyisocyanate composition A) which contains oligomeric polyisocyanates and is low in monomeric diisocyanates, “low in monomeric diisocyanates” meaning that the polyisocyanate composition A) has a content of monomeric diisocyanates of at most 20% by weight; (b) catalytically trimerizing the polyisocyanate composition A).

Provided is a polyisocyanurate thermoset comprising a mixture of an aliphatic polyisocyanate, optionally, an aromatic polyisocyanate; a core-shell rubber (CSR) impact modifier; and a catalyst, optionally, a mold release agent, wherein the aliphatic polyisocyanate is present in the mixture in an amount in excess of the aromatic polyisocyanate, and wherein the core-shell rubber (CSR) impact modifier is uniformly dispersible in the mixture. Also provided is a process of producing a polyisocyanurate thermoset comprising reacting in the presence of a catalyst, a mixture of an aliphatic polyisocyanate, optionally, an aromatic polyisocyanate, and a core-shell rubber (CSR) impact modifier, optionally, a mold release agent, wherein the aliphatic polyisocyanate is present in the mixture in an amount in excess of the aromatic polyisocyanate, and wherein the core-shell rubber (CSR) impact modifier is uniformly dispersible in the mixture. The thermosets of the invention may find use in producing composites such as wind turbine blades, yacht shells, window frames, door frames, ladder frames, telegraph pole cross arms, tent poles, solar cell frames, solar cell backsheets, radomes, highway guard rails, floor boards, pipes, telegraph poles, auto trunks, luggage holders, engine covers, golf clubs, tennis poles, badminton poles, bicycle frames, surfboards, and snowboards.

The present invention relates to novel modified polyisocyanurate plastics obtainable by catalytic trimerization of a composition A), wherein the composition A) comprises oligomeric modified polyisocyanates B) that are a reaction product of an oligomeric polyisocyanate B1) and at least one functionalizing reagent B2) reactive toward isocyanate groups, where the composition A) has a content of monomeric diisocyanates of not more than 20% by weight and where the at least one functionalizing reagent B2) reactive toward isocyanate groups has at least one functional group reactive toward isocyanate groups which is not an isocyanate group. The invention further relates to the process from which the polyisocyanurate plastics of the invention are obtainable, to the use of the polyisocyanurate plastics of the invention for production of coatings, films, semifinished products, composites and moldings, and to substrates coated with such a coating.