Embodiments of the disclosure generally provide compositions and methods related to oligomeric and polymeric urethane materials that contain hydrolyzable polythioaminal groups for use in biomedical applications.

The present invention provides an oil or gas wellbore polymeric cement comprising the reaction product of an aliphatic isocyanate, a trimerization catalyst, and a catalyst retarder, wherein the reaction occurs in the wellbore at a temperature of at least 250 F. (121 C.). Also provided is a method of reducing fluid loss from an oil or gas well, comprising producing a polyisocyanurate cement by combining an aliphatic isocyanate, a trimerization catalyst, and a catalyst retarder within a wellbore at a temperature of at least 250 F. (121 C.). The various embodiments of the invention meet the controllability and minimized toxicity needed for this application. Standard aliphatic polyisocyanates reduce handling concerns while providing the reactivity response that fits this temperature range.

The polymerizable composition of the present invention includes at least one isocyanate compound (A) having a cyclic structure, selected from compounds represented by the following Formulae (1), (2), and (3), and aliphatic isocyanate compound (B) having 4 to 11 carbon atoms, and a thiol compound (C). ##STR00001##

The present invention relates to a process for producing perfume- or flavor-containing polyurea microcapsules with improved deposition of encapsulated actives on targeted surfaces such as fiber, hair and skin, which can be used in home or personal care products, as well as to microcapsules obtainable by such a process and consumer products comprising these microcapsules.

A caprolactone polyol and polyurethane materials or adhesives including the same are described herein. The caprolactone polyol is made by a process of admixing an initiator and a caprolactone monomers to form an initiator-caprolactone mixture or reaction mixture; adding a catalyst to the initiator-caprolactone mixture to form a reaction mixture; and polymerizing the caprolactone monomers in the reaction mixture, thereby forming the caprolactone polyol, wherein the initiator includes hydroquinone bis(2-hydroxyethyl)ether, dodecanediol, pentaspiroglycol, or a combination thereof. The polyurethane materials or adhesives described herein have decreased open time, while having decreased viscosity, improved adhesion, and improved tensile strength, as compared to caprolactone polyols prepared without the initiator of the present disclosure. Methods of making and using the caprolactone polyol and polyurethane materials or adhesives are also described herein.

An object to be solved by the present invention is to discover a thermosetting coating composition ensuring an excellent finished appearance without a decrease in corrosion resistance, and to provide a coated article with such excellent coating performances. The present invention provides a thermosetting coating composition, comprising a modified epoxy resin (A) resulting from a reaction of an epoxy resin (a1) with a modifier (a2), and optionally with an amine compound (a4); and a blocked polyisocyanate compound (B), the modified epoxy resin (A) comprising, at least in a part of the terminals thereof, a specific organic group, and having a number average molecular weight of 800 to 80,000.

A curable composition for making polyisocyanurate comprising products obtained by combining and mixing at an isocyanate index of at least 100 at least a polyisocyanate composition, a polytetrahydrofuran polyol (P-THF) having average molecular weight in range 1000-5000 g/mol as toughening agent and diols having an average molecular weight <1000 g/mol.

Polyester polyols made from thermoplastic polyesters are disclosed. The polyols can be made by heating a thermoplastic polyester such as virgin PET, recycled PET, or mixtures thereof, with a glycol to give a digested intermediate, which is then condensed with a dimer fatty acid to give the polyol. The invention includes a polyester polyol comprising recurring units of a glycol-digested thermoplastic polyester and a dimer fatty acid. The polyester polyol can also be made in a single step by reacting the thermoplastic polyester, glycol, and dimer acid under conditions effective to produce the polyol. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

A method for producing an object comprises the step of producing the object by means of an additive manufacturing process from a construction material. The construction material comprises a first polyurethane polymer which has: a weight percentage ratio of O to N of 2 to 2.5, determined by elementary analysis; a weight percentage ratio of N to C of 0.1 to 0.25, determined by elementary analysis; a full-width at half maximum of the melting peak of 20 K, determined by dynamic differential scanning calorimetry DSC (2.sup.nd heating at heating rate 20 k/min); and a difference between the melting temperature and the recrystallisation temperature of 5 K and 100 K, determined by dynamic differential scanning calorimetry DSC (2.sup.nd heating) at a heating and cooling rate of 20 K/min.

The present invention relates to a viscosity modifier represented by the following general formula (1), and an emulsion composition or an aqueous paint composition including the viscosity modifier: ##STR00001##
where: R.sup.1 to R.sup.4 each represent a linear alkyl group having 1 to 13 carbon atoms; R.sup.5 and R.sup.6 each represent a group represented by the following formula (2) or (3); m and n each represent a number from 3 to 15; x represents a number from 40 to 800; and y represents a number equal to or more than 1, provided that each of a total number of carbon atoms in R.sup.1 and R.sup.2 and a total number of carbon atoms in R.sup.3 and R.sup.4 needs to be from 10 to 14. ##STR00002##