摘要:
A nonwoven surface treating article suitable for treating surfaces while emitting little formaldehyde includes an open, lofty, three-dimensional nonwoven web of a plurality of thermoplastic organic fibers a bound together at places where they contact by a binder, binder comprising 1) a copolymer of an acrylate monomer and an acrylamide monomer, 2) the crosslinked reaction product of a polyol and a melamine crosslinking agent, and 3) the reaction product of a urea derivative and formaldehyde.
摘要:
According to the invention, a chemically adsorbed film is formed on an apparel material which has a surface layer containing fluorocarbon groups and a stem which is chemically bonded by -Si- bonds to the material. A high performance apparel material thus can be provided which retains intrinsic properties of material such as ventilation and aesthetic appearance and is excellently durable and highly water- and oil-repelling and anti-contaminating or excellently durable and highly hydrophilic. The chemically adsorbed film has a very thin surface layer containing fluorocarbon groups, and is thus excellently water- and oil-repelling and anti-contaminating. In addition, since its stem is chemically bonded via -Si- bonds to the material, it does not separate and is excellently durable. Further, it is very thin and does not adversely effect intrinsic properties of material such as ventilation, color and aesthetic appearance.
摘要:
Organische Fasern werden mit Organopolysiloxan (1), das zusätzlich zu Diorganosiloxaneinheiten, worin die beiden SiC-gebundenen, organischen Reste einwertige Kohlenwasserstoffreste sind, mindestens zwei einwertige SiC-gebundene Reste mit basischen Stickstoff enthält, imprägniert, wobei mindestens ein Teil der SiC-gebundenen Reste mit basischem Stickstoff aus SiC-gebundenen N-Cyclohexylaminoalkyl-Resten besteht. Die SiC-gebundenen N-Cyclohexylaminoalkyl-Reste liegen in Monoorganosiloxan- und/oder Diorgansiloxan- und/oder Triorganosiloxaneinheiten vor. Bevorzugt als SiC-gebundener N-Cyclohexylaminoalkyl-Rest ist der SiC-gebundene N-Cyclohexyl-3-aminopropyl-Rest. Das Organopolysiloxan (1) enthält gegebenenfalls direkt an Silicium gebundene, kondensationsfähige Gruppen. Organopolysiloxan (1), das direkt an Silicium gebundene, kondensationsfähige Gruppen enthält, kann zusammen mit Organopolysiloxan (2a), das mindestens 3 Si-gebundene Wasserstoffatome je Molekül aufweist, oder zusammen mit Trialkoxy- oder Tetraalkoxysilanen (2b) und gegebenenfalls zusammen mit Katalysator (3) für die Kondensation von direkt an Silicium gebundene, kondensationsfähige Gruppen eingesetzt werden.
摘要:
The invention relates to a new binder composition which is particularly suitable for the manufacture of composite materials utilizing such new binder composition in the required nonwoven materials. Composite materials using such new binder composition in their nonwoven part are suitable, in particular, for composites materials for interior construction, for linings, floor coverings, and for the manufacture of furniture and similar products.
摘要:
The invention relates to composite structures having surface, which surface has at least a portion made of a composition comprising one or more polyamides having an excess of amine end groups such that the ratio of the amine end groups to the acid end groups is at least 1.5:1.0.
摘要:
The present disclosure provides a method for melt processing a sulfonated block copolymer in which the sulfonic acid or sulfonate functional groups are partially or completely neutralized by an amine, and to articles obtained by the method. Moreover, the shaped articles which are obtained by molding a composition comprising the neutralized sulfonated block copolymer may can be converted into shaped articles which comprise the sulfonated block copolymer(s) employed in the preparation of the amine neutralized block copolymer(s). The present disclosure further provides a sulfonated block copolymer comprising which is modified by an amine of formula (Ia) wherein Het together with the nitrogen to which it is bonded represents an optionally substituted 5- or 6-membered hetero cycle.
摘要:
The invention relates to a method for producing storage-stable polyurethane prepregs and to molded parts produced therefrom (composite components). In order to produce the prepregs or components, (meth)acrylate monomers, (meth)acrylate polymers, hydroxy-functionalized (meth)acrylate monomers, and/or hydroxy-functionalized (meth)acrylate polymers are mixed with uretdione materials and furthermore with aromatic amines that accelerate radical polymerization. Said mixture or solution is applied to fiber material, such as carbon fibers, glass fibers, or polymer fibers, according to known methods and polymerized with the aid of initiators, such as dibenzoyl peroxide, at room temperature or at higher temperatures. Instead of an amine acceleration and subsequent curing by means of initiators, other known room-temperature hardening systems such as permaleinate systems can be used. After polymerization, for example at room temperature or up to 80 °C, thermoplastics or thermoplastic prepregs arise, which can be subsequently shaped. The hydroxy-functionalized acrylate components can then be cross-linked with the uretdiones already present in the system by means of increased temperature. In this way, dimensionally stable thermosets or cross-linked composite components can be produced.
摘要:
A friction material includes a resin and a fibrous base material impregnated with the resin. The fibrous base material has a single ply, and includes a plurality of aramid fibers present in a first amount, a plurality of polyacrylonitrile-based carbon fibers present in a second amount that is less than the first amount, and diatomaceous earth present in a third amount that is greater than the first amount. The fibrous base material is substantially free from activated carbon. A friction member for operatively contacting a lubricated surface includes a substrate and a friction material. The friction material defines a first surface bonded to the substrate and a second surface configured for operatively contacting the lubricated surface.