Disclosed is a carboxy group-containing aqueous resin composition containing a carboxy group-containing aqueous resin and a polycarbodiimide compound (X) represented by the following general formula (1):

##STR00001##

wherein R.sup.1 represents a residue obtained by removing a functional group capable of reacting with an isocyanate from a hydrophilic compound having the functional group capable of reacting with an isocyanate; R.sup.2 represents a divalent residue obtained by removing isocyanate groups from a diisocyanate compound; R.sup.3 represents a divalent residue obtained by removing hydroxy groups from a glycol compound; X represents a group to be formed through a reaction between the hydrophilic compound and the diisocyanate compound; n1 represents a number of 1 to 10; n2 represents a number of 1 to 10; m represents a number of 1 to 5; and plural R.sup.1's may be the same or different and plural R.sup.2's may be the same or different.

The present invention relates to a polyol for a crosslinkable polyurethane resin composition, containing a high molecular polyol represented by the following formula (1) or (2), in which the high molecular polyol is a condensate of a polyfunctional carboxylic acid (A) with a bifunctional polyether polyol (B), the high molecular polyol has a number average molecular weight (Mn) in a range of 1,000 to 10,000, and the polyol for a crosslinkable polyurethane resin composition has a content of the high molecular polyol of 0.1 wt % to 15 wt %.

##STR00001##

The present invention relates to a pigmented aqueous basecoat material comprising a polyether-based reaction product which is preparable by reaction of (a) at least one compound of the formula (I)
X.sub.1YX.sub.2(I)
in which
X.sub.1 and X.sub.2, independently of one another, are each a functional group which is reactive toward hydroxyl groups, and Y is a divalent aliphatic or araliphatic, carboxy-functional organic radical having a number-average molecular weight of 100 to 1000 g/mol,
with
(b) at least one polyether of the general structural formula (II) ##STR00001##
in which
R is a C.sub.3 to C.sub.6 alkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 200 to 4000 g/mol, where components (a) and (b) are used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possesses a number-average molecular weight of 500 to 15 000 g/mol and an acid number of 10 to 120 mg KOH/g.

A molded body is useful for non-pneumatic tires, in furniture, seating, as cushioning, for car wheels or parts of car wheels, toys, animal toys, as tires or parts of a tire, saddles, balls and sports equipment, for example sports mats, or as floor covering and wall paneling, especially for sports surfaces, track and field surfaces, sports halls, children's playgrounds and pathways. A preparation for the molded body and a process for manufacturing the molded body are also provided.

A specific mixture of polyols, at least one of which contains the transesterification product of the polymer polylactic acid with natural oils. The mixture of polyols can be used as one component of a two-component adhesive for laminating flexible packaging. The other component comprises an isocyanate-functionalized compound. The two components are combined before use and the resulting adhesive can be used to bond films to form a flexible packaging material.

The present application discloses polyurethane or polyurethane-urea compositions with enhanced low temperature performance that includes a reaction product of: at least one diisocyanate and at least one block copolymer of A-B-A type that has an average number molecular weight of 2500-5000 g/mol, wherein the reaction product is formed in the absence of a plasticizer by reacting the reactants in an NCO:OH molar ratio of 0.9:1-2:1. The block copolymer being the reaction product of (i) a poly(tetrahydrofuran) diol in an amount of 40-70 wt % of the total molecular weight of the block copolymer, wherein the tetrahydrofuran is optionally substituted and (ii) a cyclic lactone and/or cyclic ether in an amount of 30-60 wt % of the total molecular weight of the block copolymer. The present disclosure further discloses the reaction further comprising a diol or a diamine chain extender, and compositions comprising the polyurethane or polyurethane-urea composition of the present disclosure.

This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. The disclosure provides aromatic polyester polyether polyols and compositions comprising such polyols. The disclosed aromatic polyester polyether polyols and compositions including same are the products of the transesterification reaction of polyethylene terephthalate (PET) and an ethoxylated triol, namely glycerin or trimethylolpropane, wherein the degree of ethoxylation is from 1 to 9 moles. At least some of the PET used to generate the aromatic polyester polyether polyols is derived from recycled PET. The disclosed aromatic polyester polyether polyols have utility in preparing polyurethane materials, for example.

Described herein is a polyurethane including a reaction product of an isocyanate component, a polyol component, and graphene nano platelets. The graphene nano platelets are reacted in an amount of from about 0.1 to about 20% by weight, based on a total weight of the polyurethane. The graphene nano platelets have an average lateral dimension (x, y) of from about 1 to about 100 m, an average through-plane dimension (z) of from about 5 to about 100 nm, and an oxygen content of from about 0.01 to about 10% by weight, based on a total weight of the graphene nano platelets.

Described herein is a cast elastomer including graphene nano platelets and a process for preparing the same.

A composition comprising (a1) a polyether polyol, (a2) a polyolefin polyol and (a3) a polyester polyol obtainable by epoxidation of an unsaturated fatty acid ester and subsequent ring-opening reaction with a compound containing active hydrogen, can be used for the preparation of PUR foam which distinguishes by low-temperature flexibility and low dielectric loss and is suitable for filling the gap between the condenser core and the outer composite or porcelain insulator in the manufacture of resin impregnated paper (RIP) bushings.