Abstract: The invention relates to the preparation of polyamides in the presence of a phosphonate, which is already added at the beginning of the polycondensation or polyaddition process. The resulting prepolymer exhibits a high molecular weight and is almost colorless. A further aspect of the invention is the use of a phosphonate for increasing the molecular weight and modification of polyamides during polycondensation.

Abstract: Photochromic compositions are disclosed comprising a polymeric material, a photochromic dye, a hydroxyphenyl triazine UV absorber and, optionally, a further light stabilizer selected from the sterically hindered amines. These systems provide a reversible photochromic effect and show improved light stabilization and color fastness.

Abstract: Hardstock fat having an amount of saturated fatty acids of at least 80 wt %, • wherein the amount of H3mixed triglycerides is between 45 and 60 wt %, H3mixed being a group of triglycerides consisting of triglycerol esters of 3 H fatty acids wherein H is a saturated fatty acids having a length of C16 and/or C18, wherein the triglycerol ester is composed of two different fatty acids; • and wherein the amount of H2Xmixed triglycerides is at least 10 wt %, H2Xmixed being a group of triglycerides consisting of H2M triglycerides and H2O triglycerides, wherein H2M triglycerides are triglycerol esters with two H fatty acid and one M fatty acid wherein M is a saturated fatty acid of a length of C12 and/or C14, and wherein H2O triglycerides are triglycerol esters with two H fatty acid and one O fatty acid wherein O is a unsaturated fatty acid of a length of C18, wherein the H2M and H2O triglycerides are composed of three different fatty acids.

Abstract: The present invention relates to a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) at least one hydroxylamine of high molecular weight, preferably a long chain alkyl substituted hydroxylamine. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of high molecular weight hydroxylamines for controlled polymerization.

Abstract: The present invention relates to a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) at least one hydroxylamine of high molecular weight, preferably a long chain alkyl substituted hydroxylamine. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of high molecular weight hydroxylamines for controlled polymerization.

Abstract: The present invention relates to a process of preparing a polycondensate in the presence of a fluorescent whitening agent and at least one phosphonate and/or phosphinate. Further aspects of the invention are a polyester prepared according to this process and composition comprising a polycondensate, a fluorescent whitening agent and at least one phosphonate and/or phosphinate. Yet another aspect is the use of a fluorescent whitening agent and at least one phosphonate and/or phosphinate for improving the color of a polycondensate.

Abstract: The instant invention relates to new photolatent compounds of the formula I wherein R1 and R2 are each independently of the other C1-C10alkyl or C3-C8cycloalkyl, R3 is hydrogen or C1-C4alkyl, and wherein the photochemically cleaved group R4OH is selected from the group consisting of fragrances, UV absorbers, anti-microbials, anti-fogging agents and clarifiers; with the proviso that, when R1 and R2 are tert-butyl and R3 is hydrogen, R4 is not methyl or phenyl.

Abstract: Process for the preparation of a spreadable edible dispersion wherein a mixture of oil and solid structuring agent particles is subjected to stirring and an aqueous phase and/or solid phase is gradually added to the mixture until a dispersion of the desired oil content is obtained, wherein the solid structuring agent particles have a microporous structure of submicron size particles.

Abstract: The present invention discloses a process for the preparation of a stabilized polyester that is low in the generation of aldehydes which comprises reacting one or more diacids with one or more diols in an esterification process, and/or one or more diesters with one or more diols in a transesterification process in the presence of an effective amount of a stabilizer selected from the group consisting of (a) a polyhydric alcohol which is for example poly(ethylene-co-vinyl alcohol), poly(styrene-co-allyl alcohol), maltitol, isomalt, sorbitol, xylitol, sucrose, mucic acid dibutylester, mucic acid di(phenyl-1-ethyl)ester, pentaerythritol or dipentaerythritol; (b) a compound of the formula II which is for example di-iso-octyl-phosphinic acid; (c) a sterically hindered amine which is for example Tinuvin 123 or Tinuvin 622; (d) a polyacrylamide, an anionic acrylic polymer or a cationic acrylamide copolymer; or (e) a hydroxylamine and/or a nitrone.

Abstract: Solid dosage forms containing at least one polymer binder, at least one active ingredient and, where appropriate, conventional additives, wherein a physiologically tolerated, water-swellable graft copolymer or a mixture of graft copolymers is employed as polymeric binder.

Abstract: The instant invention relates to a process for crosslinking unsaturated polymer resins as e.g. unsaturated polyesters using hydroxyamine esters as radical source. Further aspects of the invention are a composition comprising unsaturated polymer resins as e.g. unsaturated polyester resins and a hydroxylamine ester and the use of hydroxylamine esters for crosslinking unsaturated polymers.

Abstract: The present invention relates to masterbatches useful for modifying thermoplastic polyesters, in particular to masterbatches comprising dispersed chain coupling agents, such as for example dianhydrides and optionally a polyol branching agent. The invention also relates to a method for preparing the masterbatches, and to a method for modifying a polyester utilizing the masterbatches. Yet another aspect of the invention is the use of such a masterbatch composition for the modification of polyesters.

Abstract: Flame retardants are described, comprising A, at least one organic phosphonate of formula (I), wherein R is hydrogen, C1-C20alkyl, unsubstituted or C1-C4alkyl-substituted phenyl or naphthyl, R? is hydrogen, C1-C20alkyl, unsubstituted or C1-C4alkyl-substituted phenyl or naphthyl or M1r+/r, n is an integer from 0 to 6, M1r+ is an r-valent metal ion or the ammonium ion, r is an integer from 1 to 4, R13 is isopropyl, isobutyl, tert-butyl, cyclohexyl or is cycloalkyl substituted by from 1 to 3 C1-C4alkyl groups, R14 is hydrogen, C1-C4alkyl, cycloalkyl or is cyclohexyl substituted by from 1 to 3 C1-C4alkyl groups, and R15 is hydrogen C1-C18alkyl, trimethylsilyl, benzyl, phenyl or sulfonyl; and B, at least one flame retardant component based on a nitrogen compound, and also the use thereof in synthetic polymers.

Abstract: The instant invention pertains to a thermoplastic organic polymer containing a conventional flame retardant and a hydroxylamine ester, in particular a tetraalkyl piperidine hydroxylamine ester. Further aspects of the invention are the use of hydroxylamine esters as flame retardants and a method for improving flame retardancy of a thermoplastic organic polymer.

Abstract: Compounds of the general formula I? in which R1 is H, C1–C12alkyl; C5–C12cycloalkyl; C2–C18alkyl which is interrupted by one or more O; SR4; OR5; or is a group of formula II or III R2, R21 and R3 independently of one another, are H or —Y—T as defined in claim 1, where T is a reactive group selected from OH, acryl- and methacryloxy and arylcarbonate groups, and further symbols are as defined in claim 1, are effective as crosslinking agents for polymeric networks, especially as in flexographic printing plates, coatings, and plastic containers or films. Further provided is a method of protecting the content of a clear or lightly colored plastic container or film against the deleterious effects of ultraviolet radiation, which method comprises permanently and covalently bonding one or more UV absorbing moieties of a durable s-triazine UV absorber via condensation to a suitable polymer component.

Abstract: The present invention discloses a process for the preparation of a stabilized polyester that is low in the generation of aldehydes which comprises reacting one or more diacids with one or more diols in an esterification process, and/or one or more diesters with one or more diols in a transesterification process in the presence of an effective amount of a stabilizer selected from the group consisting of (a) a polyhydric alcohol which is for example poly(ethylene-co-vinyl alcohol), poly(styrene-co-allyl alcohol), maltitol, isomalt, sorbitol, xylitol, sucrose, mucic acid dibutylester, mucic acid di(phenyl-1-ethyl)ester, pentaerythritol or dipentaerythritol; (b) a compound of the formula II, which is for example di-iso-octyl-phosphinic acid; (c) a sterically hindered amine which is for example Tinuvin 123 or Tinuvin 622; (d) a polyacrylamide or a cationic acrylamide copolymer; or (e) a hydroxyamine and/or a nitrone.

Abstract: Photochromic compositions are disclosed comprising a polymeric material, a photochromic dye, a hydroxyphenyl triazine UV absorber and, optionally, a further light stabilizer selected from the sterically hindered amines. These systems provide a reversible photochromic effect and show improved light stabilization and color fastness.

Abstract: The present invention relates to a process for increasing the molecular weight and for the modification of polycondensates, to the use of an additive blend effecting the increase in molecular weight without imparting color to the polycondensates as well as to the polycondensates obtainable by that process. The additive blend contains at least one bis-acyllactam, at least one phosphite, phosphinate or phosphonate; or at least one benzofuran-2-one type compound or at least one phosphite, phosphinate or phosphonate and one benzofuran-2-one type compound.

Abstract: The present invention relates to a process of preparing a polycondensate in the presence of a fluorescent whitening agent and at least one phosphonate, and/or phosphinate. Further aspects of the invention are a polyester prepared according to this process and composition comprising a polycondensate, a fluorescent whitening agent and at least one phosphonate and/or phosphinate. Yet another aspect is the use of a fluorescent whitening agent and at least one phosphonate and/or phosphinate for improving the color of a polycondensate.

Abstract: The present invention relates to masterbatches useful for modifying thermoplastic polyesters, in particular to masterbatches comprising dispersed polyol branching agent and/or chain coupling agents, such as for example dianhydrides. The invention also relates to a method for preparing the masterbatches, and to a method for modifying a polyester utilizing the masterbatches. Yet another aspect of the invention is the use of such a masterbatch composition for the modification of polyesters.