摘要:
Disclosed are certain poly-methine compounds having the formula ##STR1## wherein each R.sup.1 is independently selected from cyano; carboxy; alkenyloxycarbonyl; an unsubstituted or substituted alkoxycarbonyl, cycloalkoxycarbonyl or aryloxycarbonyl radical; an unsubstituted or substituted, carbocyclic or heterocyclic aryl radical; an unsubstituted or substituted alkanoyl, cycloalkanoyl or aroyl radical; an unsubstituted or substituted carbamoyl radical; or an unsubstituted or substituted alkylsulfonyl, cycloalkylsulfonyl or arylsulfonyl radical; each R.sup.2 is independently selected from cyano or an unsubstituted or substituted alkoxycarbonyl, cycloalkoxycarbonyl or aryloxycarbonyl radical; each A is independently selected from an unsubstituted or substituted 1,2-phenylene or 1,2-naphthylene radical; each Z is independently selected from --0-- or --S--; and L is an organic linking group bonded by non-oxo carbon atoms to each Z atom. Also disclosed are sunscreen formulations and polymeric compositions containing at least one of the poly-methine compounds or the reactive residue thereof.
摘要:
Disclosed are certain poly-methine compounds having the formula ##STR1## wherein each R.sup.1 is independently selected from cyano; carboxy; alkenyloxycarbonyl; an unsubstituted or substituted alkoxycarbonyl, cycloalkoxycarbonyl or aryloxycarbonyl radical; an unsubstituted or substituted, carbocyclic or heterocyclic aryl radical; an unsubstituted or substituted alkanoyl, cycloalkanoyl or aroyl radical; an unsubstituted or substituted carbamoyl radical; or an unsubstituted or substituted alkylsulfonyl, cycloalkylsulfonyl or arylsulfonyl radical; each R.sup.2 is independently selected from cyano or an unsubstituted or substituted alkoxycarbonyl, cycloalkoxycarbonyl or aryloxycarbonyl radical; each A is independently selected from an unsubstituted or substituted 1,2-phenylene or 1,2-naphthylene radical; each Z is independently selected from --O-- or --S--; and L is an organic linking group bonded by non-oxo carbon atoms to each Z atom. Also disclosed are sunscreen formulations and polymeric compositions containing at least one of the poly-methine compounds or the reactive residue thereof.
摘要:
Provided are polymers containing methine linkages. Also provided are shaped or formed articles comprised of the light absorbing polymers either alone or admixed with other thermoplastic polymers to form a light absorbing thermoplastic polymer composition.
摘要:
Provided are novel polyester compositions containing copper phthalocyanine sulfonamide colorants copolymerized therein. Also provided are amorphous color concentrates, partially-crystalline color concentrates and semi-crystalline color concentrates. These polyester compositions are particularly useful for use as colored packaging materials and for colorants for personal, medical, and home care products where non-extractability of the colorant residue is important.
摘要:
A composition useful for incorporation into polymer compositions employed for food packaging or the like comprising a bis- or tris-methine compound having the structural formula ##STR1## wherein A is selected from the radicals ##STR2## wherein R' and R" are each selected from chlorine, bromine, fluorine, alkyl, alkoxy, aryl, aryloxy and arylthio;each n is independently 0, 1, 2;R.sub.1 is selected from a large variety of radicals such as cycloalkyl, phenyl, and straight or branched alkyl which may be substituted;R.sub.2 is alkylene or the like;R.sub.3, R.sub.4, and R.sub.5 are each selected from hydrogen and alkyl; andP and Q and P.sup.1 and Q.sup.1 are selected from cyano, carbalkoxy, carbaryloxy, carbaralkyloxy, or the like.
摘要:
Composition useful for molding into articles which as food containers, beverage bottles, cured structural plastics and the like comprising molding grade linear or unsaturated polyester or polycarbonate having reacted therewith or copolymerized therein the residue of one or more poly-methine compounds having the formula: ##STR1## wherein each R.sup.1 is independently selected from cyano, carboxy, alkenyloxycarbonyl, or a substituted or unsubstituted alkoxycarbonyl, cycloalkoxoycarbonyl or aryloxycarbonyl radical;each R.sup.2 is independently selected from one of the groups specified for R.sup.1 or an unsubstituted or substituted aryl, carbamoyl, alkanoyl, cycloalkanoyl, aroyl, alkylsulfonyl, cycloalkylsulfonyl, arylsulfonyl or aromatic, heterocyclic radical;each R.sup.3 is independently selected from hydrogen or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical;A.sup.1 and A.sup.2 are independently selected from 1,4-phenylene radicals; andL is an organic linking group bonded by non-oxo carbon atoms to the oxygen atoms adjacent to L; provided the poly-methine compound bears at least one substituent that is reactive with one of the monomers from which the condensation polymer is derived.The polymethine residues are present in the polymer as an integral part of the polymer chain and absorb ultraviolet radiation in the range of about 250 to about 390 nm. The residues are non-extractable from the polymer and stable at the conditions at which the polymers are manufactured and processed.
摘要:
This invention relates to novel fiber forming polyester compositions that exhibit improved whiteness by incorporating derivatives of dibenzoisoquinolinediones of the formula ##STR1## wherein R is hydrogen, cycloalkyl, allyl, alkyl, aralkyl, alkoxyalkyl or cycloalkylalkylene;R.sub.1 is hydrogen, halogen, alkyl, alkoxy, aryloxy, alkylthio or arylthio;R.sub.2 is hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, carbalkoxy, carbaryloxy, carbaralkyloxy, carboxy, sulfamoyl, alkylsulfamoyl, dialkylsulfamoyl, alkylarylsulfamoyl, cycloalkylsulfamoyl, arylsulfamoyl, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, alkylarylcarbamoyl, cycloalkylcarbamoyl, arylcarbamoyl, 2-pyrrolidono, acylamido or N-alkylacylamido;R.sub.3 is one or more groups selected from the group consisting of hydrogen, halogen, alkyl, and alkoxy; andx is an integer of 1 to 5;wherein one or more alkyl, alkoxy, aryl, aryloxy, alkylthio, arylthio or aralkyl residues may contain one or more reactive groups selected from the group consisting of carboxy, carbalkoxy, carbaryloxy, N-alkyl-carbamoyloxy, carbamoyloxy, acyloxy, chlorocarbonyl, hydroxyl, cycloalkylcarbonyloxy, N-arylcarbamoyloxy, and N,N-dialkylcarbamoyloxy wherein said alkyl and aryl groups may also have common substituents such as alkoxy, acyloxy, cyano, halogen, hydroxy and acylamido.
摘要:
Compositions comprising polyester or polycarbonate having reacted therein a total of from about 1.0 to about 5,000 parts by weight per million parts by weight of polyester of at least one UV absorbing compound of the formula ##STR1## wherein R is alkyl or the like, X is carbonyl or sulfonyl, R.sup.1 is hydrogen or a substituent, and Y and Z are hydrogen or substituents such as cyano or alkoxycarbonyl, with the provision that at least one of R, R.sup.1, Y, and Z is, or forms part of, or contains one or more reactive groups capable of undergoing a condensation reaction under polyester forming conditions, such that the UV absorbing compound is reacted into the polymer. The compound has a maximum light absorbance within the range of from about 320 nm to about 380 nm, which is nonextractable from the polyester and stable under the polyester processing conditions, for imparting UV screening properties to the polymer. Many products such as fruit juices, soft drinks, wines, food products, cosmetics and shampoos are deleteriously affected by UV light when packaged in clear plastic containers which pass significant portions of the available light at any wavelength from approximately 250 to 390 nm. By use of the present compounds polymeric containers can be manufactured which absorb these harmful wavelengths and therefore reduce or eliminate the UV light degradation of products packaged therein. A further advantage of the present polymeric compositions is that conventional polyester dyes and other additives such as pigments, fillers, brighteners and the like may be incorporated therein, and the UV screening properties of the methine compounds impart significant stabilization to both the polyester and the dyes.
摘要:
Polyester compositions useful in formed articles such as beverage bottles and having condensation reacted therein at least one UV-absorbing compound of the formula ##STR1## wherein: R is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, cycloalkyl, substituted cycloalkyl, or alkenyl;R.sup.1 is hydrogen, or alkyl, aryl, or cycloalkyl, all of which may be substituted;R.sup.2 is hydrogen, or alkyl, cycloalkyl or aryl, all of which may be substituted;R.sup.3 is hydrogen or 1-3 substituents; andP is cyano or a group such as carbamoyl, aryl, alkylsulfonyl, arylsulfonyl, alkanoyl or aroyl, all of which groups may be substituted;whereby the polyester composition has maximum light radiation absorbance within the range of from about 320 nm to about 380 nm.
摘要:
Provided are light-absorbing polymers useful for imparting color and/or ultraviolet light screening properties to thermoplastic resins. The polymeric colorants or UV absorbers may be added during the formation of the uncolored thermoplastic polymer or melt or solution blended with other thermoplastic polymers.