Abstract: Powder compositions and articles and methods of forming articles from powder compositions are provided. The powder compositions include at least one powder that preferably includes an amount of one or more branched polymers such as, for example, one or more branched polyamide polymers. The powder composition is preferably capable of being formed, via a layer-by-layer sintering process such as, for example, selective laser sintering, into a three-dimensional article.

Abstract: Powder compositions and articles and methods of forming articles from powder compositions are provided. The powder compositions include at least one powder that preferably includes an amount of one or more branched polymers such as, for example, one or more branched polyamide polymers. The powder composition is preferably capable of being formed, via a layer-by-layer sintering process such as, for example, selective laser sintering, into a three-dimensional article.

Abstract: Powder compositions and articles and methods of forming articles from powder compositions are provided. The powder compositions include at least one powder that preferably includes an amount of one or more branched polymers such as, for example, one or more branched polyamide polymers. The powder composition is preferably capable of being formed, via a layer-by-layer sintering process such as, for example, selective laser sintering, into a three-dimensional article.

Abstract: A binding fiber having, as at least one first thermoplastic component, a copolyamide which has a relative viscosity of at least 1.50 (measured at 0.5% in m-cresol at 25° C.), a MVR of maximum 20 cm3/10 min at 190° C. and 2.16 kg load, a hydrophobicity of less than 7.2, a melting temperature lower than 105° C. in the water saturated condition and a higher melting temperature in the dry condition. The binding fiber can, on the one hand, be activated with hot steam at approximately ambient pressure during the manufacture of flat materials containing natural fibers, such as paper, cardboard, wood fiber boards, or fiber mats. The finished flat material can, on the other hand, be subjected to higher temperatures, and the copolyamide develops good bonding with respect to the cellulose fibers normally used in the indicated flat materials.

Abstract: A binding fiber having, as at least one first thermoplastic component, a copolyamide which has a relative viscosity of at least 1.50 (measured at 0.5% in m-cresol at 25° C.), a MVR of maximum 20 cm3/10 min at 190° C. and 2.16 kg load, a hydrophobicity of less than 7.2, a melting temperature lower than 105° C. in the water saturated condition and a higher melting temperature in the dry condition. The binding fiber can, on the one hand, be activated with hot steam at approximately ambient pressure during the manufacture of flat materials containing natural fibers, such as paper, cardboard, wood fiber boards, or fiber mats. The finished flat material can, on the other hand, be subjected to higher temperatures, and the copolyamide develops good bonding with respect to the cellulose fibers normally used in the indicated flat materials.

Abstract: Powder compositions and articles and methods of forming articles from powder compositions are provided. The powder compositions include at least one powder that preferably includes an amount of one or more branched polymers such as, for example, one or more branched polyamide polymers. The powder composition is preferably capable of being formed, via a layer-by-layer sintering process such as, for example, selective laser sintering, into a three-dimensional article.

Abstract: Copolyamides, consisting of polycondensation products of the following components: caprolactam 10 to 45 mol-%, laurolactam 30 to 55 mol-%, at least 2 dicarboxylic acids 20 to 50 mol-% of the following compounds, aliphatic &agr;,&ohgr;-dicarboxylic acids with 6 up to 14 C atoms inclusively, terephthalic acid, isophthalic acid and 2,6-naphthalene dicarboxylic acid, wherein the content of aromatic dicarboxylic acids is lower than 10 mol-%, with reference to the allover amount of the above-mentioned components, which add up to 100 mol-%, a diamine mixture in an amount that is equimolar to that of the dicarboxylic acids, chosen from the group of the following substances, hexamethylene diamine, piperazine and/or 2-methyl-1,5-diaminopentane, wherein the molar content of hexa-methylene diamine is between 75 and 95 mol-% with reference to the diamine mixture. The copolyamides according to the invention are used for the production of mono- and multifilaments, fibers, films and nets.

Abstract: The invention relates to a method for production of a wash-resistant bond between a film on basis of copolyetherester waterproof and permeable to water vapor and at least one substrate on basis of polyester which is a woven or knitted fabric to achieve a pure bonded fabric having good wash resistance at 60° C., wherein said film on basis of copolyetherester which is waterproof and permeable to water vapor is manufactured with at least one film of a hot-melt adhesive on basis of a hydrophilic copolyetherester to a laminate previously before being bonded to said substrate by means of a hot-melt adhesive on basis of copolyester.

Abstract: Copolyamides, consisting of polycondensation products of the following components: caprolactam 10 to 45 mol-%, laurolactam 30 to 55 mol-%, at least 2 dicarboxylic acids 20 to 50 mol-% of the following compounds, aliphatic &agr;,&ohgr;-dicarboxylic acids with 6 up to 14 C atoms inclusively, terephthalic acid, isophthalic acid and 2,6-naphthalene dicarboxylic acid, wherein the content of aromatic dicarboxylic acids is lower than 10 mol-%, with reference to the allover amount of the above-mentioned components, which add up to 100 mol-%, a diamine mixture in an amount that is equimolar to that of the dicarboxylic acids, chosen from the group of the following substances, hexamethylene diamine, piperazine and/or 2-methyl- 1,5-diaminopentane, wherein the molar content of hexa-methylene diamine is between 75 and 95 mol-% with reference to the diamine mixture.

Abstract: A heat settable, coating system of carboxyl-functional polyester resins, polyfunctional epoxy compounds and/or &bgr;-hydroxy alkyl amides, as well as further customary additives, if required. The coating system contains at least one linear carboxyl-functional polyester resin of up to 10 mol-part of isophthalic acid and at least 90 mol-parts of at least a further dicarboxylic acid from the group of aromatic dicarboxylic acids with 8 to 16 C-atoms, aliphatic dicarboxylic acids with 6 to 22 C-atoms and cycloaliphatic dicarboxylic acids with 8 to 16 C-atoms, and at least 90 mol-parts of at least one branched aliphatic diol with 4 to 12 C-atoms, and up to 50 mol-parts of at least one linear aliphatic diol with 2 to 22 C-atoms and/or at least one cycloaliphatic diol with 6 to 16 C-atoms as the binder resin.

Abstract: Novel, quick-crystallizing hot-melt adhesive masses having a melting point between 60° and 100° C. comprise a statistically-proportioned copolyester or copolyetherester based on terephthalic acid, adipic acid and a mixture of aliphatic diols; the molar proportion of terephthalic acid is between 55 and 85 mole %, relative to the total acid quantity; and the molar proportion of adipic acid is between 15 and 40 mole %. A combination of butane diol and hexane diol is used as the diol component; the molar component of butane diol is between 40 and 55 mole %; and the molar proportion of hexane diol is between 40 and 60 mole %. Up to 15 mole % of a dimer acid having a molar mass between 400 and 800 g/mole, or up to 10 mole % of a higher-molecular polyethylene glycol having a molecular mass of 600 to 4000 g/mole, can be used to increase the flexibility. The copolyester or copolyetherester hot-melt adhesive masses of the invention can be used in the hot-melt method, and in powder-form coating methods.

Abstract: The invention relates to Amorphous and/or semicrystalline copolyesters containing .beta.-hydroxyalkylamide groups according to formula (I) ##STR1## whereinP=polymer chain of the polyesterR1=alkyl residues with 1-5 atoms or hydrogen or ##STR2## R2=alkyl residues with 1-5 C-atoms or hydrogen, R3=alkyl residues and 1-5 C-atoms or hydrogen, andn.gtoreq.2,with a molecular weight (Mn) of 300 to 15,000 and a hydroxyl value of 10 to 400 ?mg KOH/g!.

Abstract: The invention relates to novel hot-melt masses consisting of a statistically built-up copolyether ester based on terephthalic acid and a mixture of aliphatic diols. Terephthalic acid is used as the single acid component and its molar amount, relative to the total amount of acid, is 100 molar %. A combination of butane diol, diethylene glycol, polyethylene and optionally triethylene glycol is present as diol component. The molar amount of butane diol is less than 75 molar %, the amount of diethylene glycol is between 5 and 60 molar %, the amount of triethylene glycol between 0 and 40 molar % and at least 2 and at the most 10 molar % of a higher-molecular polyethylene glycol component with a molar mass of 600-4000 g/mole is used, relative to the total acid amount and total diol amount of 100 molar % in each instance. The melting point of the copolyether ester adhesive masses is between 90.degree. and 190.degree. C.

Abstract: The invention relates to novel hot-melt masses consisting of a statistically built-up copolyether ester based on terephthalic acid in a mixture of aliphatic diols. Terephthalic acid is used as the single acid component and its molar amount, relative to the total amount of acid, is 100 molar %. A combination of butane diol, triethylene glycol and polyethylene glycol is present as diol component. The molar amount of butane diol is less than 80 molar %, the amount of triethylene glycol is between 15 and 60 molar % and at least 2 and at the most 10 molar % of a higher-molecular polyethylene glycol component with a molar mass of 600-4000 g/mole is used, relative to the total acid amount and total diol amount of 100 molar % in each instance. The melting point of the copolyether ester adhesive masses is between 90.degree. and 180.degree. C. The copolyetherester hot-melt masses can be used in the hot-melt method and for other known powder coating methods.

Abstract: A process for the preparation of polyolefins, polydienes and copolymers thereof by polymerization in solvents, liquid monomers or in the gaseous phase at a temperature between -20.degree. C. and 150.degree. C. using magnesium hydride, a halogen-containing transition metal compound of Group IV and an aluminium alkyl compound, characterized in that the polymerization is carried out in the presence of a catalyst system consists of(a) a magnesium compound having the general formulaMgH.sub.xwherein x is a number between 1 and 2, and more specifically 2; (b) a compound of a transition metal of Group IV having the general formulaMeHal.sub.4wherein Me is a transition metal, more specifically titanium, and Hal is a halogen, more specifically chlorine; and (c) an aluminium alkyl compound having the general formulaAlR.sub.n Hal.sub.(3-n)wherein R is a C.sub.1 -C.sub.6 alkyl residue, more specifically ethyl, Hal is a halogen, more specifically chlorine, and n is a number of from 1 to 3, and preferably 3.