Disclosed herein is a dry, self-supporting fibrous material, the fibers of which have been treated with a binder composition. The fibrous material can be slit into tapes or tows that are suitable for use in an Automated Tape Laying (ATL) or Automated Fiber Placement (AFP) process. This fibrous material is suitable for forming preforms which are configured to receive a matrix resin by resin infusion in the manufacturing of structural composite parts.

Embodiments of the present disclosure are directed to electronic devices comprising a housing comprising a polymer blend. The polymer blend comprises at least one of an aromatic polyether thermoplastic polyurethane and a copolyester elastomer, and a dielectric constant modifier comprising at least one of a polyolefin and a block copolymer comprising at least one polyolefin block. The electronic devices receive signals greater than or equal to 2.5 Gigahertz.

One purpose of the present invention is to provide a liquid-crystal compound which exhibits liquid crystallinity at low temperatures. Another purpose of the present invention is to provide a thermally responsive material which exhibits liquid crystallinity and rubber elasticity at low temperatures (around room temperature) ever, though a large amount of a liquid-crystal compound is contained therein, and a method for producing this thermally responsive material. A liquid-crystal compound according to the present invention is obtained by adding an alkylene oxide and/or styrene oxide to a mesogenic group-containing compound that has an active hydrogen group.

The present invention relates to polyester polyols obtainable or obtained by esterification of 10 to 70 mol % of at least one compound from the group consisting of terephthalic acid (TPA), dimethyl terephthalate (DMT), polyethylene terephthalate (PET), phthalic anhydride (PA), phthalic acid and isophthalic acid, 0.1 to 30 mol % of one or more fatty acids and/or fatty acid derivatives, 10 to 70 mol % of one or more aliphatic or cycloaliphatic diols having 2 to 18 carbon atoms or alkoxylates thereof, 5 to 70 mol % of a polyether polyol prepared by alkoxylating an aromatic starter molecule having a functionality of not less than 2, and of 0 to 70 mol % of a tri- or polyol other than the polyether polyol, all based on the total amount of the components used, wherein the amounts used of the components add up to 100 mol %. The present invention further relates to a process for producing rigid polyurethane or polyisocyanurate foams which comprises reacting an isocyanate component with a polyol component (PK) comprising a polyester polyol of the present invention and further components, to the polyol component as such and also to the rigid polyurethane or polyisocyanurate foams obtainable or obtained by a process of the present invention. The present invention also relates to the method of using a polyester polyol (P1) of the present invention in the manufacture of rigid polyurethane foams or rigid polyisocyanurate foams.

An aqueous aluminum brazing composition contains, as a binder resin, a water-soluble/dispersible polyurethane resin that exhibits a residual ratio of 60% by mass or less in a 400 C. heating environment and exhibits a residual ratio of 1.0% by mass or less in a 520 C. heating environment.

There is provided a film-forming composition for forming a film that covers a substrate and exhibits good electrical insulation properties, heat resistance, and solvent resistance after heating at a low temperature. A film-forming composition including a polymer (A) containing a unit structure of Formula (1): ##STR00001##
(wherein T.sup.1 is an arylene group or a combination of an arylene group with T.sup.0, T.sup.0 is an alkylene group, a fluorinated alkylene group, a carbonyl group, a sulfonyl group, or a combination thereof, R.sup.1 is a carboxyl group, an amino group, or an imino group, and n1 is an integer of 1 to 6), and a compound (B) having at least two isocyanate groups or blocked isocyanate groups. The polymer (A) is a polymer containing a unit structure of Formula (1) or a structure (A-1) having a combination of the unit structure of Formula (1) with a unit structure of Formula (2): ##STR00002##

A thermosetting composition comprising a lignin component comprising two or more kinds of compounds represented by the following formula (1) and a polyol, wherein the amount of the lignin component is 0.10% by mass or more, and the total content of the compound is 0.06% by mass or more, based on the total amount of the lignin component:

##STR00001##

wherein in the formula, R.sup.a is a hydrogen atom, a methyl group, an ethyl group, a furyl group, a hydroxymethylfuryl group, a hydroxyphenyl group, a hydroxymethoxyphenyl group or a hydroxydimethoxyphenyl group; R.sup.c1 and R.sup.c2 independently represent a hydroxyl group, an alkoxy group, an amino group or thiol group; R.sup.11 to R.sup.20 are independently a hydrogen atom, a hydroxyl group, a hydrocarbon group having 1 to 15 carbon atoms, a hydrocarbon ether group having 1 to 15 carbon atoms, or a group including a carbonyl group; each of R.sup.11 to R.sup.20 may be the same as or different from each other; provided that at least one of R.sup.11 to R.sup.15 is a hydrogen atom, and at least one of R.sup.16 to R.sup.20 is a hydrogen atom.

Provided is a coating composition for the elastic coating of textile materials, comprising at least one blocked, isocyanate-terminated prepolymer (component A), the isocyanate-terminated prepolymer A) being prepared from a polyol component a) IN and an isocyanate component b), and the terminal isocyanate groups being blocked with dialkyl malonate and/or 3,5-dimethylpyrazole, and the isocyanate component b) containing 70 wt % of at least one aliphatic polyisocyanate and 30 wt % of at least one N aromatic polyisocyanate, based on the total weight of component b), at least one polyamine (component B) and 30 wt %, based on the total mass of the coating composition, of at least one organic solvent. Further provided are a method for coating substrates with the coating composition, and also the substrate obtainable in such a method, and, further, the use of the coating composition for producing elastic coatings or elastic films.

A coating agent, a cured product of which after curing having a tear strength, at each of 25? C. and 80? C., of 20 KN/m or more, and having a type A durometer hardness at 25? C. of from 30 to 100, and a spring using the same.

Disclosed herein is a dry, self-supporting fibrous material, the fibers of which have been treated with a binder composition. The fibrous material can be slit into tapes or tows that are suitable for use in an Automated Tape Laying (ATL) or Automated Fiber Placement (AFP) process. This fibrous material is suitable for forming preforms which are configured to receive a matrix resin by resin infusion in the manufacturing of structural composite parts.