A soft feel curable polyester composition comprising the residues of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol, a C.sub.2-C.sub.20 diol other than 2,2,4,4-tetraalkylcyclobutane-1,3-diol, a C.sub.2-C.sub.20 polyol, an alicyclic diacid and an acyclic aliphatic diacid, wherein said curable polyester contains at least 90 mole percent of aliphatic diacid residues, based on the total moles of diacid residues, and wherein said curable polyester has a hydroxyl number of about 100 to about 250 mgKOH/g, an acid number of 0 to about 30 mgKOH/g, and a number average molecular weight of about 500 to about 10,000 g/mole, a soft segment polyol, an isocyanate crosslinker and a solvent or a solvent mixture.

The present invention relates to coatings, particularly high performance coatings, containing a polyester polyol comprising recurring units derived from a polyacid source, poly(bisphenol-A carbonate) (PBAC), and a glycol. The PBAC is preferably recycled poly(bisphenol-A carbonate) (rPBAC). These coatings provide improved salt spray and stain resistance along with a variety of other coating performance attributes. The polyols can contain a significant recycle and biobased content, making them sustainable alternatives to petroleum based polyols.

The present invention relates to a novel block copolymer of structure 1, ##STR00001##
wherein, A- is a block polymer chain, B is a block polymer chain,
wherein, A- and B- are chemically different, covalently connected polymer chains, which are phase separable and the moiety X(Y(Z).sub.b).sub.a is a junction group, which comprises a surface active pendant moiety Y(Z).sub.b wherein: a is an integer from 1 to 4 denoting the number of surface active pendant moieties Y(Z).sub.b on X, b is an integer from 1 to 5 denoting the number of Z moieties on the linking moiety Y, X is a linking group between the A polymer block, the B polymer block and the moiety Y, Y is a linking group or a direct valence bond between X and Z; and Z is a moiety independently selected from, a fluorine containing moiety, a Si.sub.1-Si.sub.8 siloxane containing moiety or a hydrocarbon moiety with at least 18 carbons, and further wherein the junction group X(Y(Z).sub.b).sub.a has a surface energy less than that that of the block A and less than that of the block B. The invention also relates to a composition comprising the novel copolymer and its use in direct self-assembly processes.

The present invention relates to curable solid particulate compositions that include: (a) a first reactant having at least two cyclic carbonate groups; and (b) a second reactant having at least two active hydrogen groups that are reactive with the cyclic carbonate groups of the first reactant. With some embodiments, the first reactant is a polyol residue having at least two cyclic carbonate groups, such as bisphenol A that has been reacted with epichlorohydrin, and in which the oxirane groups thereof have been converted to cyclic carbonate groups. The active hydrogen groups of the second reactant, with some embodiments, are each independently selected from hydroxyl groups, thiol groups, and amine groups. The curable solid particulate compositions, with some embodiments, are in the form of curable powder coating compositions.

A soft feel curable polyester composition comprising the residues of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol, a C.sub.2-C.sub.20 diol other than 2,2,4,4-tetraalkylcyclobutane-1,3-diol, a C.sub.2-C.sub.20 polyol, an alicyclic diacid and an acyclic aliphatic diacid, wherein said curable polyester contains at least 90 mole percent of aliphatic diacid residues, based on the total moles of diacid residues, and wherein said curable polyester has a hydroxyl number of about 100 to about 250 mgKOH/g, an acid number of 0 to about 30 mgKOH/g, and a number average molecular weight of about 500 to about 10,000 g/mole, a soft segment polyol, an isocyanate crosslinker and a solvent or a solvent mixture.

Block copolymers (BCPs) for self-assembly applications comprise a linear fluorinated linking group L joining a pair of adjacent blocks. A film layer comprising a BCP, which is disposed on an underlayer and in contact with an atmosphere, is capable of forming a perpendicularly oriented domain pattern when the underlayer is preferentially wetted by one domain of an otherwise identical self-assembled BCP in which all fluorines of L are replaced by hydrogen. The BCP can be a low-chi or high-chi BCP. In a preferred embodiment, the BCP comprises a styrene-based first block, and a second block comprises a carbonate and/or ester repeat unit formed by ring opening polymerization of a cyclic carbonate and/or cyclic ester monomer. The linking group L has a lower surface energy than each of the polymer blocks.

Block copolymers (BCPs) for self-assembly applications comprise a linear fluorinated linking group L joining a pair of adjacent blocks. A film layer comprising a BCP, which is disposed on an underlayer and in contact with an atmosphere, is capable of forming a perpendicularly oriented domain pattern when the underlayer is preferentially wetted by one domain of an otherwise identical self-assembled BCP in which all fluorines of L are replaced by hydrogen. The BCP can be a low-chi or high-chi BCP. In a preferred embodiment, the BCP comprises a styrene-based first block, and a second block comprises a carbonate and/or ester repeat unit formed by ring opening polymerization of a cyclic carbonate and/or cyclic ester monomer. The linking group L has a lower surface energy than each of the polymer blocks.

The present invention relates to coatings, particularly high performance coatings, containing a polyester polyol comprising recurring units derived from a polyacid source, poly(bisphenol-A carbonate) (PBAC), and a glycol. The PBAC is preferably recycled poly(bisphenol-A carbonate) (rPBAC). These coatings provide improved salt spray and stain resistance along with a variety of other coating performance attributes. The polyols can contain a significant recycle and biobased content, making them sustainable alternatives to petroleum based polyols.

A method for shielding a metal substrate surface during the application of heat to the surroundings of the substrate which comprises. A liquid maskant composition is formed which comprises: a) at least one of a polycarbonate urethane diacrylate oligomer, a polycarbonate urethane dimethacrylate oligomer, a polycarbonate caprolactone urethane diacrylate oligomer, or a polycarbonate caprolactone urethane dimethacrylate oligomer; b) a reactive diluent capable of free radical polymerization; and c) a photoinitiator capable of generating free radicals when exposed to actinic radiation. The maskant composition is applied onto a surface of the substrate. The maskant composition is then exposed to sufficient actinic radiation to polymerize or crosslink the composition into a dried maskant. In use the dried maskant is heated on the substrate to a temperature of from about 400 F. to about 600 F. for from about 20 minutes to about 30 minutes, and then the maskant is removed.

An aqueous polyol dispersion and preparation method thereof and application thereof is provided. The aqueous polyol dispersion of the present application includes a polycarbonate diol, a non-ionic emulsifier and water; wherein, the polycarbonate diol is at least one type of a polycarbonate diol including (a), (b) and (c), wherein: (a) is a terminal hydroxyl group; (b) is a repeating unit represented by formula; (c) is at least one of a repeating unit represented by formula, a repeating unit represented by formula and a repeating unit represented by formula; the non-ionic emulsifier is at least one emulsifier including alternating polyoxyethylene segment and polyoxypropylene segment, and a molar ratio of the polyoxyethylene segment to a sum of the polyoxyethylene segment and the polyoxypropylene segment is 35-85%.