摘要:
A curable composition comprising two partially polymerized mixed syrups of ethylenically unsaturated monomers is provided. These compositions are useful as the precursors for vibration damping materials. Further, a curable composition including (1) an ethylenically unsaturated monomer or (2) an ethylenically unsaturated monomer and a cyanate ester monomer, and certain organometallic neutral compounds is useful in the graphic arts.
摘要:
A composition for saturation of preformed, previously cured foam substrates having an at least partially open cell configuration, includes a polymer binder in which microspheres containing a phase change material are dispersed. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. A preferred cured foam substrate is a skived polyurethane or polyether foam of from 20 to 1,000 mils in thickness, preferably 20 to 200 mils in thickness, having up to 6 ounces per square yard or more of encapsulated phase change material embedded in a polymer binder. One method of applying the binder with dispersed encapsulated phase change materials is by applying a binder/microsphere dispersion to the upper surface of a previously cured foam sheet, then drawing a vacuum from the underside of the cured foam sheet to permeate from 20 % to 100 % of the cured foam sheet with the binder/microsphere dispersion. The resulting product is then cured. An alternative method of applying the binder with embedded encapsulated phase change materials using knife over roll technique to an exposed surface of the skived foam is disclosed in which the most preferred viscosity of the uncured polymer binder is from 7,000 to 9,000 centipoise.
摘要:
A main chamber (33) into which a gel material (32) is filled is disposed at a position of the surface of the human body (4) corresponding to at least the Trochanter major (1a) of a thighbone (1) in contact therewith. At least two pieces or more of auxiliary chambers (34) into which a gel material is filled and which has a smaller contact area with the human body than the main chamber are juxtaposed in a longitudinal direction or the front side relative to the contact portion of the main chamber with the surface of the human body.
摘要:
A sheet adapted for installation as substructure to a non-anchored floor comprises a laminate (1) of a moistureproof, shock absorbing and porous layer (2), a substantially gasproof layer (3) and a shock absorbing fibrous layer (4). The laminate is manufactured of a porous polymer material, a web of a gasproof foil and a web of fibre material. The webs are seamed together along the edges, where respective zones of the foil are in face to face contact. In this way, it is possible to obtain a barrier layer which is gasproof, impermeable to rising moisture and which has good properties regarding sound attenuation, shock absorption, heat insulation, and ease of installation.
摘要:
Polymer structures (1) having a laminated surface and enhanced physical properties that can be used for packaging, athletic gear (e.g. padding, water sport equipment), gaskets, and protective garments are decribed. The structures (1) include a core (4) of relatively high density material and one or more layers (6) laminated to the surfaces of the core material of relatively low density polymer foam. The structures (1) can be stiff or flexible. The foam layers improve the softness of the surfaces of the core material.
摘要:
A sound absorbent component whose chambers present thin side walls and form acoustic resonators of the spring mass system type. The thin side walls are placed next to each other or integrated with each other so that in each case they form partitions (4) assigned to one chamber and the chambers (14) with the partitions (4) are assembled as a compartment-like chamber system. The partitions and the chamber system can be manufactured in a simple cost-effective manner by a deep-drawing type process from a flat foil using thin rods (9) which form, in particular, parts of a deep-drawing grid.
摘要:
Eine aus einem Träger und diesen ein- oder beiderseitig in Sandwichbauweise bedeckenden Deckschicht(en) bestehende Verbundplatte, beispielsweise eine Akustikplatte, kann kontinuierlich und rationell gefügt werden, wenn der Klebstoff in körniger, trockener Form auf eine Klebefläche aufgestreut und danach mit dem Lösungsmittel kontaktiert wird.