[Purpose] To provide a thermosetting composition with which it is possible to obtain paint films which not only display stain resistance for a short period after application, but with which excellent stain resistance can also be expected for longer periods, and which comply with the paint film properties required for painted steel sheet such as water resistance and bending workability, and have high environmental protection and safety qualities. [Solution] The present invention relates to a thermosetting composition, wherein it contains, as essential components, (A) a polyester resin of number average molecular weight 1,000-10,000 and hydroxyl value 5-200 mg KOH/g and, (B) 0.5 to 2.0 equivalents, relative to the hydroxyl groups of the aforesaid component (A), of a compound (B) which is a blocked aliphatic polyisocyanate compound having reactivity to the hydroxyl groups of component (A), wherein the blocks are methyl ethyl ketone oxime and/or ε-caprolactam, (C) 0.05 to 5 mass %, relative to the total resin solids mass of component (A) and component (B), of an organotin compound represented by the following general formula (I) [Chem.1] R.sup.1—Sn-(O)C═(O)—R.sup.2).sub.3 (I) (R.sup.1 in the formula represents an organic group wherein it has 1-24 carbons, and is directly bound to the Sn atom via a C atom. R.sup.2 represents an organic group wherein it has 1-24 carbons, and is directly bound to the C atom of the (C═O) via a C atom), and (D) 0.5 to 50 mass %, relative to the total resin solids mass of component (A) and component (B), of an organosilicate represented by the following general formula (II) and/or a condensation product thereof [Chem.2] (R.sup.3, R.sup.4, R.sup.5 and R.sup.6 in the formula are each a hydrogen atom or 1-10 carbon organic group, and may be the same or different, n is 1). ##STR00001##

[Purpose] To provide a thermosetting composition with which it is possible to obtain paint films which not only display stain resistance for a short period after application, but with which excellent stain resistance can also be expected for longer periods, and which comply with the paint film properties required for painted steel sheet such as water resistance and bending workability, and have high environmental protection and safety qualities. [Solution] The present invention relates to a thermosetting composition, wherein it contains, as essential components, (A) a polyester resin of number average molecular weight 1,000-10,000 and hydroxyl value 5-200 mg KOH/g and, (B) 0.5 to 2.0 equivalents, relative to the hydroxyl groups of the aforesaid component (A), of a compound (B) which is a blocked aliphatic polyisocyanate compound having reactivity to the hydroxyl groups of component (A), wherein the blocks are methyl ethyl ketone oxime and/or ε-caprolactam, (C) 0.05 to 5 mass %, relative to the total resin solids mass of component (A) and component (B), of an organotin compound represented by the following general formula (I) [Chem.1] R.sup.1—Sn-(O)C═(O)—R.sup.2).sub.3 (I) (R.sup.1 in the formula represents an organic group wherein it has 1-24 carbons, and is directly bound to the Sn atom via a C atom. R.sup.2 represents an organic group wherein it has 1-24 carbons, and is directly bound to the C atom of the (C═O) via a C atom), and (D) 0.5 to 50 mass %, relative to the total resin solids mass of component (A) and component (B), of an organosilicate represented by the following general formula (II) and/or a condensation product thereof [Chem.2] (R.sup.3, R.sup.4, R.sup.5 and R.sup.6 in the formula are each a hydrogen atom or 1-10 carbon organic group, and may be the same or different, n is 1). ##STR00001##

Ethylsilicate polymers and a method of making, specifically ethylsilicate polymer binders with reduced levels of regulated volatile organic compounds (VOCs) for use in the coatings industry and casting industry, and more specifically to stable, fast cure ethylsilicate polymer binders with low levels of regulated VOCs.

Ethylsilicate polymers and a method of making, specifically ethylsilicate polymer binders with reduced levels of regulated volatile organic compounds (VOCs) for use in the coatings industry and casting industry, and more specifically to stable, fast cure ethylsilicate polymer binders with low levels of regulated VOCs.

An insulation material includes a matrix comprising a reaction product formed from a silicon carbide precursor resin and a silicon dioxide precursor resin. At least one filler, such as hollow glass microspheres and/or carbon fiber is dispersed within the matrix. A rocket motor includes a case, the insulation material within and bonded to the case, and a solid propellant within the case. An insulation precursor includes a silicon carbide precursor resin, a silicon dioxide precursor resin, and the at least one filler. Related methods are also disclosed.

An insulation material includes a matrix comprising a reaction product formed from a silicon carbide precursor resin and a silicon dioxide precursor resin. At least one filler, such as hollow glass microspheres and/or carbon fiber is dispersed within the matrix. A rocket motor includes a case, the insulation material within and bonded to the case, and a solid propellant within the case. An insulation precursor includes a silicon carbide precursor resin, a silicon dioxide precursor resin, and the at least one filler. Related methods are also disclosed.

In various embodiments, novel methods of fabricating and/or packaging aerogels are provided.

In various embodiments, novel methods of fabricating and/or packaging aerogels are provided.

A composition containing the following components: (a) a polysiloxane having at least one alkenyl functional group and at least one alkoxy functional group; (b) a mercapto-functional polysiloxane with at least one mercapto functionality; (c) a silane crosslinker with at least two alkoxy groups per molecule; (d) a photoinitiator; (e) a combination of zirconium tetraalkoxylate and alkylacetoacetate at a mole ratio in a range of 1:1 to 1:4.

The present application discloses a thermally insulating aerogel vacuum composite panel and a preparation method thereof. The preparation method includes the following steps: (1) mixing TEOS solution and a metal particle, adding a hydrophobic agent, mixing, adding ammonium trifluoroacetate solution dropwise until completely gelating to obtain a metal aerogel precursor; (2) adding the metal aerogel precursor into an acid replacement solution for replacement for 1-24 h to obtain a gel; (3) washing the gel with deionized water to obtain a neutral gel; (4) soaking the neutral gel obtained in step (3) in a first organic resin solvent; (5) pouring the neutral gel into a substrate with honeycomb structure, and aging for re-gelating to obtain a modified panel; (6) drying the modified panel to obtain a honeycomb panel; and (7) aging the honeycomb panel at room temperature for 1-24 h to obtain the vacuum composite panel.