Abstract: This invention relates to polyester compositions that possess improved gas barrier properties. The novel copolyester blends comprise repeat units of phenylenedi(oxyacetic acid). Such copolyesters with improved gas barrier properties are useful in packaging applications where low gas permeability are required for protection or preservation of the contents.

Abstract: Provided are novel thermosetting powder coating compositions which are useful for coating metal articles and protecting such articles from acidic corrosion. The compositions are comprised of an epoxy containing acrylic copolymer crosslinked with both an aliphatic dibasic acid and a blocked polyisocyanate.

Abstract: Provided are thermosetting coating compositions comprised of a core active mixture of a glycidyl group containing acrylic polymer and an aliphatic carboxyl functional polyester, e.g., poly(tetramethylene trans-1,4-cyclohexanedicarboxylate) along with an aliphatic polycarboxylic acid. The coatings obtained from the application and curing of these compositions possess excellent weathering properties.

Abstract: This invention provides weatherable thermosetting powder coatings based on an all-aliphatic polyester comprised of residues of 1,2-cyclohexanedicarboxylic acid, 1,3-cyclohexanedicarboxylic acid, or 1,4-cyclohexanedicarboxylic acid and 2,6-decahydronaphthalene dimethanol. The polyester may be predominantly hydroxyl or carboxyl functional. Coating compositions prepared therefrom provide coatings which exhibit superior weatherability.

Abstract: Provided are thermosetting powder coatings based on a resin based on dimethyl 2,6-decalindicarboxylate and neopentyl glycol. The resin may be modified with other diacids or diols but must have a suitable glass transition temperature (Tg) required for powder coatings. We have found that this aliphatic polyester meets the basic Tg requirement of powder coatings and found that it provides powder coating with excellent weatherability. The polyester resin has a number average molecular weight (Mn) of from about 1,500 to about 10,000, a glass transition temperature (Tg) of about 45.degree. C. to 100.degree. C., and a hydroxyl or acid number of from about 20 to about 100.

Abstract: This invention relates to thermosetting powder coatings formulated with a polyisocyanate and a blend of a hydroxylated polyester resin having a low hydroxyl number and a hydroxylated resin based on tris(hydroxyethyl)isocyanurate having a high hydroxyl number. Powder coatings from this blend exhibit high hardness and good caking stability.

Abstract: This invention provides weatherable thermosetting powder coating compositions based on 1,2-cyclohexanedicarboxylic acid and 2,2,4,4-tetramethyl-1,3-cyclobutanediol. Coatings from this invention exhibit far superior QUV (313 bulb) resistance than compositions based on resins prepared from 1,3-and 1,4-cyclohexanedicarboxylic acid and are 20 times better than standard aromatic resin using the same cross-linking chemistry.

Abstract: Provided are novel thermosetting powder coating compositions comprised of blends of certain amorphous polyesters, polyesters containing 1,4- and 1,3-bis(2-hydroxyethoxy)-benzene, and cross-linking agents. Coatings provided therefrom possess good gloss, impact strength, and flexibility.

Abstract: Provided are novel thermosetting coating compositions comprised of a an epoxy containing acrylic copolymer and 1,3- and/or 1,4-cyclohexanedicarboxylic acid as crosslinking agents. Also provided are shaped or formed articles coated with the cured compositions. The compositions of the invention were found to provide coatings with markedly superior hardness.

Abstract: Disclosed are thermosetting, powder coating compositions comprised of certain novel polyesters comprised of residues of terephthalic acid and 1,3-bis(2-hydroxyethoxy)benzene in combination with a blocked polyisocyanate which, when applied to a substrate and heated, provide cross-linked coatings having a combination of desirable properties including good gloss, impact strength and flexibility.

Abstract: Disclosed are thermosetting, powder coating compositions comprised of certain novel polyesters in combination with a blocked polyisocyanate which, when applied to a substrate and heated, provide cross-linked coatings having a combination of desirable properties including good gloss, impact strength and flexibility.

Abstract: Disclosed are thermosetting, powder coating compositions comprised of blends of certain amorphous polyesters and polyether-esters in combination with a blocked polyisocyanate which, when applied to a substrate and heated, provide cross-linked coatings having a combination of desirable properties including good gloss, impact strength and flexibility.

Abstract: Polyesteramide resins useful for forming containers having improved resistance to gas permeability comprising the reaction product of(A) a dicarboxylic acid corresponding to the structure ##STR1## wherein X is --O--, --S-- or ##STR2## n.sub.1 is 0 or 1 and R.sub.1 is an aromatic structure containing 6 to 15 carbons, and(B) An aminoalcohol corresponding to the formula ##STR3## where n.sub.2 is 0 or 1 and R.sub.2 is an alphatic structure of 1 to 12 carbons.

Abstract: Polyester resins useful for forming containers having improved resistance to gas permeability comprising the reaction product of(A) a dicarboxylic acid corresponding to the structure ##STR1## and (B) a diol selected from the group consisting of ethylene glycol, 1,4-butane diol and 1,4-cyclohexanedimethanol.

Abstract: The present invention provides polyester resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 50 mole percent of a first diacid selected from 1,4-phenylenedioxy diacetic acid, 1,3-phenylenedioxy diacetic acid, 1,2-phenylenedioxy diacetic acid, and mixtures thereof, and about 50 to about 95 mole percent of naphthalene dicarboxylic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

Abstract: The present invention provides polyamide resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyamide resin which comprises the reaction product of a diamine containing 2 to about 10 carbon atoms and a diacid component which comprises about 25 to 95 mole percent of a first diacid selected from 1,4-phenylenedioxy diacetic acid, 1,3-phenylenedioxy diacetic acid, 1,2-phenylenedioxy diacetic acid, and mixtures thereof, and about 5 to about 75 mole percent of a naphthalene dicarboxylic acid. The polyamide resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

Abstract: The present invention provides polyester resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 95 mole percent of a first diacid selected from [thiobis(p-phenyleneoxy)]diacetic acid, [sulfonylbis(p-phenyleneoxy)]diacetic acid, and mixtures thereof, and about 5 to about 95 mole percent of naphthalene dicarboxylic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

Abstract: The present invention provides polymer blend compositions which are useful in the formation of containers having improved resistance to gas permeability. The polymer blend compositions comprise about 5 to 50 percent by weight of a first polyester comprising polyglycolic acid and correspondingly about 50 to 95 percent by weight of a second polyester. The second polyester comprises units derived from a diacid component comprising terephthalic acid and units derived from a diol component which preferably comprises ethylene glycol. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

Abstract: The present invention provides polyester resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 95 mole percent of oxydiacetic acid, and about 5 to about 95 mole percent of naphthalene dicarboxylic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

Abstract: The present invention provides polyester resins useful for forming containers having improved resistance to gas permeability. The containers are formed from a polyester resin which comprises the reaction product of a diol containing up to about 8 carbon atoms and a diacid component which comprises about 5 to 50 mole percent of a first diacid selected from 1,4-phenylenedioxy diacetic acid, 1,3-phenylenedioxy diacetic acid, 1,2-phenylenedioxy diacetic acid, and mixtures thereof, and about 50 to about 95 mole percent of terephthalic acid. The polyester resin has an inherent viscosity of about 0.5 to 1.5. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.