The present invention relates to a segmented block copolymer composition based on diblock and/or triblock copolymers of vinyl aromatic monomer and hydrogenated butadiene blocks and thermoplastic polyurethane blocks which are linearly bonded by N or O atoms, and its procedure of obtainment based on reactive extrusion. Furthermore, the present invention relates to a thermoplastic composition, a laminate structure and a polyurethane foam, with improved properties, comprising the segmented block copolymer composition.

A polyurethane elastomeric composition includes the reaction product of an isocyanate component and an isocyanate-reactive component. The isocyanate-reactive component includes a polydiene polyol present in the isocyanate-reactive component in an amount of greater than 0 and less than about 95 parts by weight based on 100 parts by weight of the isocyanate-reactive component. The polydiene polyol has an average hydroxy functionality of no greater than about 3 and a number average molecular weight of from about 1000 to less than about 2000 g/mol.

Thermally vulcanisable, meltable adhesives and processes have a meltable polybutadiene-polyurethane, ground sulphur and optionally at least one vulcanisation accelerator, at least one filling material, at least one epoxide resin, at least one tackifier resin, bitumen, at least one softener and further auxiliary and additive materials, wherein said adhesives and processes can be thermally vulcanised within a temperature range of 130 C. to 230 C., such that same, as well as an adhesive strip produced from same, can be used for adhesion and/or sealing in the automotive industry, as well as in structural work on oiled sheet metal, and in the painting line on e-coated or otherwise painted sheet metal, for example, for crimp fold adhesion, for crimp fold sealing, for seam sealing, for lining adhesion, for hole closure and much more.

A non-crosslinked, crosslinkable polyurethane has an acid number of 20-40 and a glass transition temperature of up to and including 40 C. It can be derived from an aromatic diisocyanate; and a diol mixture of at least D.sub.1, D.sub.2, D.sub.3, and D.sub.4 diols. D.sub.1 has a C.sub.3 to C.sub.7 aliphatic group and at least one pendant carboxy group or pendant neutralized carboxy group. D.sub.2 has a chain of repeating C.sub.2 to C.sub.6 alkylene oxide groups and a molecular weight of 250-3000. D.sub.3 is an alkoxylated bisphenol A or aliphatic cyclic diol present in an amount of at least 5 mol %. D.sub.4 is a hydroxy-terminated polybutadiene having a molecular weight of at least 1000, and is present in an amount of at least 0.1-5 mol %.

A composition is provided for making a polyurethane that may be incorporated in various products, such as a sealant, a coating, a caulk, an electric potting compound, a membrane, a sponge, a foam, an adhesives, and a propellant binder. The composition includes one or more polyols, one or more isocyanate-group containing compounds having an isocyanate group functionality of at least two, and optionally one or more chain extenders. At least one of the polyols is a farnesene-based polyol having a number average molecular weight less than or equal to 100,000 g/mol and a viscosity at 25? C. less than 10,000 cP. The farnesene-based polyol may be a homopolymer or a copolymer of farnesene. The composition may also comprise additional polyols, such as a polyol of a homopolymer or copolymer of a polydiene. Methods of preparing a polyurethane are also provided.

A two-part curable urethane adhesive composition of the present technology comprises: a main agent containing a urethane prepolymer (A), an isocyanate group-containing polyisocyanate (B), and isocyanate silane (C); and a curing agent containing a compound having at least two active hydrogen groups per molecule (D) and an aromatic compound (E) represented by Formula (1) below, where n is an integer of 1 to 5, and X represents a hydrogen atom, a hydroxy group, or an alkoxy group having from 1 to 12 carbons.

##STR00001##

A two-part curable urethane adhesive composition of the present technology comprises: a main agent containing a urethane prepolymer (A), an isocyanate group-containing polyisocyanate (B), and isocyanate silane (C); and a curing agent containing a compound having at least two active hydrogen groups per molecule (D) and an aromatic compound (E) represented by Formula (1) below, where n is an integer of 1 to 5, and X represents a hydrogen atom, a hydroxy group, or an alkoxy group having from 1 to 12 carbons.

##STR00001##

A solution polymerized styrene-butadiene rubber-polyurethane elastomer material and a preparation method thereof are provided. The elastomer material is prepared by performing cast molding on a soft segment and a hard segment in a mass ratio of 100:(20-50); the soft segment includes hydroxyl-terminated solution polymerized styrene-butadiene moiety rubber prepared by an anionic polymerization; the hard segment comprises isocyanate, a small-molecule polyol chain extender and a cross-linking agent; and the soft segment has a molecular weight of 1000-8000 and a glass-transition temperature of 20 C. to 30 C. According to the elastomer material in the disclosure, the hydroxyl-terminated solution polymerized styrene-butadiene rubber is introduced to serve as the soft segment on the basis of synthesis of the traditional polyurethane elastomer, so that the glass-transition temperature of the polyurethane elastomer is regulated, defects such as poor high temperature resistance and undesirable wet-skid resistant grip ability of an existing polyurethane tire are overcome.

A non-crosslinked, crosslinkable polyurethane has an acid number of 20-40 and a glass transition temperature of up to and including 40 C. It can be derived from an aromatic diisocyanate; and a diol mixture of at least D.sub.1, D.sub.2, D.sub.3, and D.sub.4 diols. D.sub.1 has a C.sub.3 to C.sub.7 aliphatic group and at least one pendant carboxy group or pendant neutralized carboxy group. D.sub.2 has a chain of repeating C.sub.2 to C.sub.6 alkylene oxide groups and a molecular weight of 250-3000. D.sub.3 is an alkoxylated bisphenol A or aliphatic cyclic diol present in an amount of at least 5 mol %. D.sub.4 is a hydroxy-terminated polybutadiene having a molecular weight of at least 1000, and is present in an amount of at least 0.1-5 mol %.

An inkjet printing method uses an aqueous inkjet ink composition having a non-crosslinked, crosslinkable polyurethane having an acid number of 20-40 and is derived from an aromatic diisocyanate; and a diol mixture of D.sub.1 and D.sub.2 diols, and optionally including D.sub.3 diol, D.sub.4 diol, or both D.sub.3 and D.sub.4 diols. D.sub.1 has a C.sub.3 to C.sub.7 aliphatic group and a pendant carboxy group or neutralized carboxy group. D.sub.2 has a chain of repeating C.sub.2 to C.sub.6 alkylene oxide groups. D.sub.3 is an alkoxylated bisphenol A or aliphatic cyclic diol, present at least 5 mol %. D.sub.4 is a hydroxy-terminated polybutadiene having a molecular weight of at least 1000 and is present in an amount of 0.1-5 mol %. The ink composition also contains a dispersed pigment colorant; a humectant or organic co-solvent, and optionally, a crosslinking agent.