Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability, said polyesters consisting of homopolyesters derived from a dicarboxylic acid component wherein at least a major portion of which is 1,4-cyclohexanedicarboxylic acid (or ester) having a trans isomer content of at least 65% and a glycol component wherein at least a major portion of which is 2,2,4,4-tetramethyl-1,3-cyclobutanediol and copolyesters thereof with modifying aliphatic glycols and/or aliphatic dicarboxylic acids, said polyesters being stabilized with the combination of at least one ultraviolet light stabilizing compound compatible with said polyester and at least one hindered amine light stabilizer having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.

Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability. These polyesters consist of copolyesterethers derived from a dicarboxylic acid component comprising about 80-100 mole % 1,4-cyclohexanedicarboxylic acid having a trans isomer content of at least 70% and about 0-20 mole % of a second dicarboxylic acid and a glycol component comprising about 70-95 mole % 1,4-cyclohexanedimethanol and about 5-30 mole % of a polyalkylene ether glycol having a molecular weight of about 600 to about 3000. The copolyesterether compositions further comprise a stabilizing effective amount of the combination of (1) at least one hindered phenolic antioxidant, (2) at least one ultraviolet light stabilizing compound compatible with said copolyesterether and (3) at least one hindered amine light stabilizing compound having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.

Abstract: The invention relates to melamine group containing compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing an amount of a melamine group containing compounds to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may be incorporated into the organic compositions such as polymers by adding to the polymer melt or dissolved in the polymer dope, coated on the exterior of the shaped or molded article, film or extruded fiber.

Abstract: The invention relates to melamine group containing compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing an amount of a melamine group containing compounds to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may be incorporated into the organic compositions such as polymers by adding to the polymer melt or dissolved in the polymer dope, coated on the exterior of the shaped or molded article, film or extruded fiber.

Abstract: The invention relates to melamine group containing compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing an amount of a melamine group containing compounds to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may be incorporated into the organic compositions such as polymers by adding to the polymer melt or dissolved in the polymer dope, coated on the exterior of the shaped or molded article, film or extruded fiber.

Abstract: A process is provided for deactivation of catalyst residues in polyester compositions. The polyester compositions are provided by polymerizing diols and diacids, or mixtures of such diols and diacids, to form polyester compositions. The polymerization is carried out in the presence of a polymerization catalyst that leaves traces of such catalyst residues in the polyester composition. These catalyst residues can adversely affect the further processing and end use of the polyester composition. The present process provides deactivation of the catalyst residues by the use of a combination of a mono- or dihydrogen phosphonate or mono-, di-, or trihydrogen phosphate compound and a di- or triester phosphonate compound or a phosphite compound.

Abstract: Disclosed are polyester substrates or sheets laminated with an acrylic film and having exceptionally improved resistance to surface deterioration on weathering. These laminates are especially suited for use in applications such as windows, signs, solar collectors, green house covers and the like which are subject to extended periods of outdoor exposure. Typical polyesters include modified poly(ethylene terephthalate), and modified poly(1,4-cyclohexylenedimethylene terephthalate) such as those of terephthalic acid with ethylene glycol and 1,4-cyclohexanedimethanol, e.g., poly(69/31 molar-ethylene/1,4-cyclohexylenedimethylene terephthalate) and poly(65/35 molar-1,4-cyclohexylenedimethylene/ethylene terephthalate). The acrylic polymer films suitable forlamination to the polyester sheeting are homopolymers and copolymers prepared from either or both of the monomers H.sub.2 C.dbd.CHCO.sub.2 R and H.sub.2 C.dbd.C(CH.sub.3)CO.sub.2 R.sup.1 wherein R and R.sup.1 are each selected from C.sub.1 -C.sub.

Abstract: Disclosed are novel copolyester materials having improved weatherability and useful, for example, as films, fibers, sheeting and the like in outdoor applications where long and daily exposure to actinic radiation is encountered. These copolyesters comprise, for example, polyethylene terephthalate containing a total of from about 0.3 to about 5.0%, preferably from about 0.6 to about 2.0% by weight of one or more moieties having the formula ##STR1## where R.sub.1 is cyano, alkylcarbonyl, cycloalkylcarbonyl or arylcarbonyl; R.sub.2 and R.sub.3 are, for example, alkyl, cycloalkyl, or aryl which may be substituted with a large variety of groups; and --X-- is ortho, meta, or para to the -ylene linkage and is selected from groups of the formulae ##STR2## wherein R is alkylene of 1-10 carbons, aryl, or cycloalkyl, each of which may be substituted.

Abstract: Disclosed are highly stable copolyesters having inherent viscosities of at least 0.4 and containing in copolymerized form from about 0.3 to about 5.0% by weight of one or more of the stabilizing moieties having the general formula ##STR1## where R and R.sub.1 are each a chemical bond or an alkylene group of 1-6 carbons; R.sub.2 is alkyl, cycloalkyl, or aryl; R.sub.3 represents 1-5 groups each independently selected from H, Cl, F, alkyl, cycloalkyl, alkoxy, aryl or aryloxy; wherein all of the above alkyl and alkylene moieties comprising or being part of the R.sub.2 or R.sub.3 groups contain from 1-8 carbons; and wherein all of the above alkyl, alkylene, aryl and cycloalkyl moieties may be substituted with up to three substituents selected from halogen, alkyl of 1-8 carbons, alkoxy of 1-8 carbons, aryl, cycloalkyl and CN.

Abstract: Disclosed is copolyester material dyed with at least one azo or anthraquinone type dye, said copolyester material having an inherent viscosity of at least 0.4 and containing in copolymerized form from about 0.3 to about 5.0% by weight of one or more of the stabilizing moieties having the general formula ##STR1## where R and R.sub.1 are each a chemical bond or an alkylene group of 1-6 carbons; R.sub.2 is alkyl, cycloalkyl, or aryl; R.sub.3 represents 1-5 groups each independently selected from H, Cl, F, alkyl, cycloalkyl, alkoxy, aryl or aryloxy; wherein all of the above alkyl and alkylene moieties comprising or being part of the R.sub.2 or R.sub.3 groups contain from 1-8 carbons, and wherein all of the above alkyl, alkylene, aryl and cycloalkyl moieties may be substituted with up to three of a variety of substituents such as halogen, alkyl of 1-8 carbons, alkoxy of 1-8 carbons, aryl, cycloalkyl and CN.

Abstract: This invention is directed to a three component stabilizer system for cellulose esters. These commercially useful stabilized cellulose ester compositions can be molded, shaped and otherwise processed in a thermoplastic condition at elevated temperatures to provide products having improved ultraviolet light stability or weatherability.

Abstract: This invention relates to oriented polyester shaped, molded, or formed objects having improved ultraviolet stability and to a process for producing the same and to compositions used in making such objects. More particularly, the invention relates to an oriented linear polyester film, fiber, foils, sheets, and other shaped, molded, or formed objects prepared from polyester compositions containing multichromophoric ultraviolet stabilizers which when oriented provide objects having improved weatherability. Multichromophoric ultraviolet stabilizers are those stabilizers which contain two or more moieties which, if isolated from one another, absorb a portion of the ultraviolet spectrum between 280 nm and 400 nm or an aromatic ester comprised of one or more of the above moieties and which on absorption of light the ester rearranges to a moiety which absorbs between 280 nm and 400 nm.

Abstract: The invention relates to multichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the multichromophoric composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stablizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

Abstract: The storage stability of aqueous p-benzoquinone and in general compounds of the formula ##STR1## where R.sub.1, R.sub.2, R.sub.3, and R.sub.4 may be the same or different and are selected, for example, from hydrogen, hydroxyl, cyano, halogen, carboxylic acid or ester, thio, thioethers, sulfonic acid or ester groups, sulfinic acid or ester groups, amino, alkylamino, dialkylamino, arylamino, diarylamino, alkylarylamino, cycloalkylamino, acylamino, acyloxy, acyl, nitro, C.sub.1 -C.sub.20 substituted or unsubstituted, saturated or unsaturated, straight chain, branched or cyclic aliphatic moieties, C.sub.6 -C.sub.32 substituted or unsubstituted aromatic moieties, and C.sub.1 -C.sub.18 alkoxy moieties, are improved by the addition of water-soluble, acidic or neutral inorganic salts of Periodic Table Group IA elements, Group IIA elements, and nickel. Such salts are typified by CaCl.sub.2, KCl, MgSO.sub.4, NaBr, NaCl, and NiCl.sub.2.

Abstract: The invention relates to polychromophoric dibenzoxazole compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the polychromophoric dibenzoxazole composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

Abstract: The invention relates to polychromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the polychromophoric composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

Abstract: The invention relates to multichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the multichromophoric composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

Abstract: Disclosed are textile polymers and dyed fibers comprised of poly(1,4-cyclohexylenedimethylene terephthalate) type polyester, which may be modified with poly(oxyethylene glycol) and further with isophthalic acid and 5-sodiosulfoisophthalic acid, and containing certain compounds which rearrange and markedly improve the fastness of the dye upon exposure to light.

Abstract: The invention relates to multichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the multichromophoric composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

Abstract: bichromophoric compounds in which one of the moieties is a benzoxazole group and the second moiety is a hydroxybenzophenone group are excellent ultraviolet light stabilizers for disperse dyes on specific polyester fibers, and for both disperse and basic dyes on specific basic dyeable polyester fibers.