A solid rocket propellant includes a binder that has hydroxyl-terminated polybudadiene (HTPB) with a curative that is selected from isocyanate-terminated polyether, isocyanate-terminated polysiloxane, or combinations thereof.

The present disclosure is drawn to polyurethane dispersions. In one example, a polyurethane dispersion can include a polyurethane with a polymeric ionic side chain and a polymeric non-ionic side chain. The polyurethane can be formed of polymerized monomers including a diisocyanate, a first polymeric diol, and a second polymeric diol. The first polymeric diol can include a first polymer chain replacing a hydrogen atom of a thiol group of a 1-thioglycerol molecule. The first polymer chain can include a block of a polymerized ionic group-containing vinyl monomer. The second polymeric diol can include a second polymer chain replacing a hydrogen atom of a thiol group of a 1-thioglycerol molecule. The second polymer chain can include a block of a polymerized non-ionic vinyl monomer, and the second polymer chain can be devoid of ionic groups.

An elastomeric polymer, comprising (1) a hard segment in the amount of 10% to 60% by weight of the elastomeric polymer, wherein the hard segment includes a urethane, urea or urethaneurea; and (2) a soft segment in the amount of 40% to 90% by weight of the elastomeric polymer. The soft segment comprises (a) at least 2% by weight of the soft segment of at least one polyether macrodiol, and/or at least one polycarbonate macrodiol; and (b) at least 2% by weight of the soft segment of at least one polyisobutylene macrodiol and/or diamine.

The present disclosure provides a latent heat storage material that has a low risk of leakage and a low moisture absorbency that is highly workable. The latent heat storage material includes a heat storage material and a surface layer containing a cured product of a reaction curable liquid resin. The heat storage material contains an inorganic latent heat storage material composition containing an inorganic latent heat agent and a thickener. The surface layer has a specific type E hardness value, a specific 100% modulus, and a specific elongation percentage at break.

A compound is provided, having the formula (I), wherein R.sub.S is a soft block polymer; wherein each T is independently a urethane or urea linkage; see formulae (A) and (B); wherein each R.sub.D is independently —CH.sub.3, —CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.3, or —CH.sub.2CH.sub.2CH.sub.2CH.sub.3; wherein each R′.sub.D is independently —CH.sub.3, —CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.2CH.sub.3, or —OR.sub.D; and wherein each p is independently 1, 2, or 3. Compositions containing the compound, and methods of making and using the compound are provided. ##STR00001##

Provided is a curable composition including a urethanization reaction product of: a branched polyolefin diol having a carbon-carbon double bond in a side chain; at least one selected from an isocyanurate product, an adduct product, and a biuret product, of an aliphatic diisocyanate having 6 or more and 10 or less total carbon atoms; and a hydroxy saturated C.sub.1 to C.sub.4 alkyl (meth)acrylate. Also provided are a method for producing the curable composition, and a specific curable compound included in the curable composition.

Polyurethane or polyisocyanate form stock and methods of manufacturing are described herein. The foam stock can include (a) a polyurethane or polyisocyanate formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols; and (b) a filler present in an amount from greater than 50% to 90% by weight, based on the total weight of the foam stock. The density of the foam stock can be from 10 lb/ft.sup.3 to 35 lb/ ft.sup.3. The flexural strength of the foam stock can be at least 100 psi. The resulting foam stock can be used to produce polyurethane or polyisocyanate foam to be used in composite panels.

A polymeric material includes a polyisobutylene-polyurethane block copolymer. The polyisobutylene-polyurethane block copolymer includes soft segments, hard segments, and end groups. The soft segments include a polyisobutylene diol residue. The hard segments include a diisocyanate residue. The end groups are bonded by urea bonds to a portion of the diisocyanate residue. The end groups include a residue of a mono-functional amine.

A curable resin composition comprises a (meth)acrylic polyol, a hydrogenated polyolefin-based polyol, and a polyisocyanate. The (meth)acrylic polyol includes a polymer having a hydroxyl value of 5 mg KOH/g or more and 150 mg KOH/g or less, a glass transition temperature of −70° C. or more and −40° C. or less, and a number average molecular weight of 500 or more and 20000 or less, and which is liquid at 25° C. The hydrogenated polyolefin-based polyol has an iodine value of 15 or less. An electrical component (1) comprises a sealing member (2) including a cured product of the curable resin composition.

As an adhesive for the lamination of metal foil and a resin film, an adhesive that can stably exhibit good adhesiveness and moreover can provide a laminate having better electrolytic solution resistance and heat resistance is provided. An adhesive comprising a polyolefin resin (A) having a carboxyl group; and polyisocyanate compounds (B), wherein the polyisocyanate compounds (B) comprise a polymer of a saturated aliphatic polyisocyanate (B1), a polymer of a saturated alicyclic polyisocyanate (B2), and a polymer of an aromatic polyisocyanate (B3).