A thermoplastic poly(urethane-urea) polyadduct with sterically hindered urea groups of the following Formula (I):

—[I-M-(I—C.sub.1).sub.a—(I-M).sub.b-(I—C.sub.2).sub.c].sub.n-  (I)

I, M, C.sub.1 and C.sub.2 each representing bivalent residues linked to each other via a urethane or urea moiety. In the residues I, C.sub.1 and C.sub.2, when more than four carbon atoms are present, optionally at least one of them is substituted by a heteroatom selected from oxygen and nitrogen. Optionally at least one of the residues I, M, C.sub.1 and C.sub.2 includes one or more ester moieties. a, b and c each independently represent an integer from 0 to 10, and n is a number ≥3 representing the number of blocks in the polyadduct. Within each separate block a+c≥1, and in all blocks together at least one a≥1 and at least one c≥1.

A thermosetting resin composition comprises a component (A) that is a compound having an imide group and a carboxy group in one molecule, and a component (B) that is a polymer having a repeating unit represented by the following general formula (1). R.sup.1 and R.sup.2 in formula (1) are each independently a hydrogen atom or a methyl group. R.sup.3 in formula (1) is a hydrogen atom or any substituent, and a plurality of R.sup.3s may be bonded to form a ring structure. R.sup.4 in formula (1) is a hydrogen atom or an alkyl group. m and n in formula (1) are each independently an integer of 1 or more, and m/n may be 1 to 50.

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A thermosetting resin composition comprises a component (A) that is a compound having an imide group and a carboxy group in one molecule, and a component (B) that is a polymer having a repeating unit represented by the following general formula (1). R.sup.1 and R.sup.2 in formula (1) are each independently a hydrogen atom or a methyl group. R.sup.3 in formula (1) is a hydrogen atom or any substituent, and a plurality of R.sup.3s may be bonded to form a ring structure. R.sup.4 in formula (1) is a hydrogen atom or an alkyl group. m and n in formula (1) are each independently an integer of 1 or more, and m/n may be 1 to 50.

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The present invention provides an aircraft window including a polyurethane including a reaction product of components including (a) about 1 equivalent of at least one polyisocyanate; and (b) about 1 equivalent of 1,4-cyclohexane dimethanol based upon the about 1 equivalent of the at least one polyisocyanate, and other aircraft window compositions.

Degradable polymers, including polyurethane and polyurethane-urea compositions, that can be used in aqueous, non-aqueous and dry hot environments as degradable polymers in oil, gas and other applications.

An embodiment relates to a polymeric composition for a polythiourethane-based optical material, wherein the polymeric composition, comprising a particular additive, may appropriately adjust the reactivity of an isocyanate such that viscosity is maintained low for a predetermined period of time, and thus is capable of preparing a high-quality polythiourethane-based optical material, without a complicated purification process. Moreover, a polythiourethane-based optical material according to an embodiment has not only a uniform refractive index, but also a low yellow index, and thus may be used as a variety of plastic optical lenses, such as an eyeglass lens or a camera lens and the like.

Provided are a polyaspartic acid derivative and a preparation method and use thereof as a lubricant, and a water-based drilling fluid and use thereof. The polyaspartic acid derivative has a structure shown in formula I, wherein, in the formula I, R.sup.1 is selected from the group consisting of —CH.sub.2—CH.sub.2—CH.sub.2—, —CH.sub.2—CH.sub.2—CH.sub.2—CH.sub.2—, and —CH.sub.2—CH.sub.2—CH.sub.2—CH.sub.2—CH.sub.2—CH.sub.2—; R.sup.2 is selected from the group consisting of —OH, —N—(CH.sub.2—CH.sub.2—OH).sub.2, —O—CH.sub.2—CH.sub.2—NH—CH.sub.2—CH.sub.2—OH, —NH—CH.sub.2—CH.sub.2—OH, and —O—CH.sub.2—CH.sub.2—NH.sub.2; and n and m are independently 8 to 17. ##STR00001##

An embodiment includes a polymer composition comprising a thermoplastic polymer that: (a) is bonded to iodine, (b) includes a vinyl group, and (c) includes urethane linkages. Other embodiments are described herein.

The present disclosure relates to a resin composition for coating an optical fiber, the resin composition including: a base resin that contains an oligomer, a monomer, and a photopolymerization initiator; and inorganic oxide particles, in which the inorganic oxide particles include a plurality of particle groups having different volume average particle sizes, and the volume average particle size is measured by small-angle X-ray scattering.

Two part sole structures are provided having a first foam component containing a polyolefin resin with a polyurethane resin component adhered to a surface of the first foam component. For example, in some aspects, a sole structure or a portion thereof is provided having a first sole component containing a foam composition and a second sole component adhered to a surface of the first sole component, where the second sole component includes a polyurethane resin. The second sole component is in some aspects printed or extruded onto the surface of the foam. In particular, midsoles including the foams and having an outsole component on the ground facing portion are provided for use in an article of footwear. Methods of making the sole structures are provided, as well as methods of making an article of footwear including one of the sole structures.