Abstract:
The use of fibres according to any one of Claims 19 to 21 or of textile fabrics according to Claim 23 for use in the following applications: filters or filter parts, nonwovens, industrial or domestic textiles or constituents or coatings of such textiles, medical textiles, coatings or constituents of packaging, for use in wound healing or as a wound dressing, for transport or for release of active substances and effect substances, cell culture carriers, catalyst supports, sensors or components thereof, acoustic dampers, precursors for preparing other fibres, and also continuous layers, as additives for polymers, coatings for improving tactile properties, optical properties and appearance, membrane production, and adsorbents and absorbents of solid, liquid and gaseous media.
Abstract:
The invention relates to nanoparticles and nanoscopic structures which may be obtained by: a) mixing a block copolymer with at least one low-molecular component, b) phase separation of the mixture to give a nanostructure, c) a subsequent treatment to improve the macroscopic orientation of the structure generated and d) leaching of at least one of the low molecular weight components such that nanoscopic holes or nanoparticles with a size of from one to two hundred nm are produced.
Abstract:
The present invention relates to compositions such as fibers, elastic yarns, wovens, nonwovens, knitted fabrics, fine nets, and articles produced at least in part from a styrenic block copolymer comprising at least two blocks produced from vinyl aromatic monomers and at least one block produced from alkyl-substituted, conjugated alkene monomers, where the block produced from the conjugated alkene may have sufficient substitution so as to prevent or significantly minimize thermal cross-linking of the residual unsaturation in the formed block during fiber formation. Additionally, the composition may be described as processable, without requiring any additives if, for example, the order-disorder-transition (ODT) temperature is less than about 280°C.
Abstract:
According to an aspect of the present invention, a fiber comprising a styrene-isobutylene copolymer is formed by via a dry spinning process. Specific examples of copolymers for the practice of the present invention include copolymers comprising a polyisobutylene block and a polystyrene block, for instance, a polystyrene-polyisobutylene-polystyrene triblock copolymer. Other aspects of the present invention relate to medical articles which comprise the above dry spun fibers. Specific examples include medical articles comprising a woven region formed from the dry spun fibers, and medical articles comprising a non-woven region formed from the dry spun fibers.
Abstract:
The present invention pertains to fibers comprising: (A) from 50 to 100 wt. percent (based on the combined weights of Components A and B) of at least one substantially random interpolymer having an I2 of from 0.1 to 1,000 g/10 min, a density greater than 0.9300 g/cm ,and an Mw/Mn of 1.5 to 20; which comprises: (1) from 0.5 to 65 mol percent of polymer units derived from: (i) at least one vinyl or vinylidene aromatic monomer, or (ii) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or (iii) a combination of at least one aromatic vinyl or vinylidene monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, and (2) from 35 to 99.5 mol percent of polymer units derived from ethylene or at least one C3-20 alpha -olefin or a combination thereof; and (B) from 0 to 50 percent by weight (based on the combined weights of Components A and B) of at least one takifier. The fibers of the present invention could have applications such as carpet fibers, elastic fibers, doll hair, personal/feminine hygiene applications,diapers, athletic sportswear, wrinkle free and form-fitting apparel, conductive fibers, upholstery, and medical applications including, but not restricted to, bandages, gamma sterilizable non-woven fibers.
Abstract:
A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 1.5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.
Abstract:
The invention relates to an anionically polymerised, impact-resistant polystyrene with a dispersed plasticiser phase, comprising particles with capsule particle morphology and method for production thereof.