Abstract:
The present invention relates to a tufted fabric and a method of manufacturing the same. The tufted fabric generally comprises a primary backing and tufts mounted in the primary backing to form a fabric with a faceside having piles and a backside having loops. A thermoplastic polymer adhesive, which bonds the tufts to the primary backing, is formed by applying a reactive mixture comprising a polymerizable monomer to the backside of the tufted fabric and in-situ polymerizing the monomers to form the thermoplastic polymer adhesive. The process is particularly advantageous for the manufacture of recyclable tufted fabrics in which the adhesive polymer and tufts are formed from substantially the same polymer. The tufted fabric can be used in articles, such as, for example carpets, rugs and upholstery.
Abstract:
Polymer composition consisting of: a) 5-95 weight % of a copolymer of 90-99.5 wt. % methyl methacrylate, 10-0.5 wt. % ethyl acrylate; b) 95-5 wt. % of a copolymer of 72-80 wt. % styrene, 20-28 wt. % maleic anhydride; c) 0-5 wt. % processing agents and/or stabilisers and/or colourants, which polymer composition has a haze of at most 10 %.
Abstract:
The invention relates to a flexible polyamide composition containing at least 50 parts by weight of non-cross-linked rubber per 50 parts by weight of polyamide and the production thereof. The polyamide has a molecular weight such that the melt viscosity at the processing temperature is at most 300 Pa.s, preferably at most 200 Pa.s. The rubber's Mooney viscosity is at least 40, most preferable is a rubber with a Mooney viscosity of at least 60. The rubber has been functionalized. Preferably a combination of a functionalized and a non-functionalized rubber is used. The rubber particles in the polyamide matrix have a particle size of at most 5 mu m, preferably at most 3 mu m.
Abstract:
The invention relates to a method for the preparation of melamine from urea in which solid melamine is obtained by transferring the melamine stream leaving the reactor to a product cooling unit where the melamine stream is cooled to a temperature below 175 DEG C. More in particular it relates to a method for the preparation of melamine from urea via a non-catalytic high-pressure process by transferring the melamine melt leaving the reactor to a product cooling unit where the melamine is recovered by cooling the melamine melt using a cooling medium, the melamine melt being cooled to a temperature below 175 DEG C.
Abstract:
This invention provides a process for the preparation of adipic acid from pentenoic acids or esters of pentenoic acids by hydrocarboxylation of a reaction mixture in which gamma-valerolactone constitutes 30 to 70 % by weight of the reaction mixture.
Abstract:
The invention relates to a process for the preparation of linear aldehydes by hydroformylation of ethylenically unsaturated organic compounds in the presence of a catalyst system comprising a Group VIII metal and a bidentate organic ligand. The bidentate organic ligand is characterized in that it has two trivalent phosphorus atoms each containing at least one P-C or one P-N bond.
Abstract:
Rod-shaped pellets containing a thermoplastic polymer and glass fibres, with the glass fibres extending in the longitudinal direction of the pellet and having the length of the pellet, wherein the pellets have a core and a sleeve, with the core containing a mixture of glass fibres and polypropylene fibres, with the polypropylene of the fibres being a homopolymer or a random copolymer of propylene and less than 10 wt.% of one or more olefins from the group ethylene, 1-olefins with 4-10 C-atoms and dienes with 4-10 C-atoms, the polypropylene of the fibres having a melt index (230 DEG C/2.16 kg) of 5 - 500 dg/min. and a density of at least 900 kg/m , with at least 50 wt.% of the sleeve consisting of a polypropylene homopolymer, random copolymer of propylene and less than 10 wt.% of one or more olefins from the group ethylene, 1-olefins with 4-10 C-atoms and dienes with 4-10 C-atoms or a block copolymer of propylene and at most 27 wt.% of one or more olefins from the group ethylene and butene and at most 8 wt.% of one or more olefins from the group 1-olefins with 3-10 C-atoms and dienes with 4-10 C-atoms and the propylene contained in the sleeve having a melt index of 1 - 200 dg/min. (230 DEG C/2.16 kg) and a density of at least 900 kg/m .
Abstract translation:含有热塑性聚合物和玻璃纤维的棒状颗粒,其中玻璃纤维在颗粒的纵向方向上延伸并且具有颗粒的长度,其中颗粒具有芯和套筒,其中芯包含玻璃的混合物 纤维和聚丙烯纤维,其中纤维的聚丙烯是丙烯的均聚物或无规共聚物和小于10重量%的一种或多种来自乙烯的单烯烃,具有4-10个碳原子的1-烯烃和具有4-10个碳原子的二烯烃, 4-10个C原子,纤维的聚丙烯的熔体指数(230℃/ 2.16kg)为5-500dg / min。 和至少900kg / m 3的密度,至少50wt。%的套管由聚丙烯均聚物,丙烯的无规共聚物和小于10wt。%的一种或多种来自乙烯基团的烯烃组成 具有4-10个C-原子的1-烯烃和具有4-10个C-原子的二烯或丙烯的嵌段共聚物和至多27wt。%的一种或多种乙烯和丁烯的烯烃和至多8wt。 %的来自具有3-10个C原子的1-烯烃和具有4-10个C原子的二烯的一种或多种烯烃,并且所述套筒中所含的丙烯的熔体指数为1-200dg / min。 (230℃/ 2.16kg),密度至少为900kg / m 3。
Abstract:
Process for incorporating an active substance in an object partly or entirely consisting of a plastic, by bringing the object into contact with an active substance, the plastic of the object contains a dendrimer with terminal groups that are compatible with the plastic. The process is for example suitable for dying fibres.
Abstract:
A liquid curable resin composition comprising (1) a (meth)acrylate polymer having a weight average molecular weight relative to polystyrene standard of at least about 5,000, (2) a ring-opening polymerizable monomer containing at least one epoxy group, and (3) a cationic photopolymerization initiator is disclosed. The composition produces cured products which exhibit superior heat resistance, excellent mechanical strength, and superb adhesive characteristics, and is suitable for use as a photo-curable adhesive, a photo-curable sealing material, a resin for optical three-dimensional molding, and a coating material for optical fibers, and optical fiber ribbon matrix.
Abstract:
Provided is a radiation-curable, optical glass fiber coating composition containing at least one radiation-curable oligomer or monomer, and at least one chromophoric indicator selected so as to be susceptible to destruction of its chromophoric characteristic upon exposure to radiation and present in an amount which becomes substantially colorless when exposed to a level of radiation sufficient to cure said radiation-curable, optical glass fiber coating composition, wherein said at least one chromophoric indicator has a color which is distinguishable from a base color of said radiation-curable, optical glass fiber coating composition in cured form. The invention also provides a method of making the coating composition. The invention further provides a coated optical glass fiber and a method of making a coated optical glass on a fiber drawing tower. Also provided is a cable and telecommunications system.