Abstract:
Shoe soles with and without removable/replaceable gripping pods for athletic or sport shoes are provided with enhanced traction. The sole portions or gripping pods may be provided with a supply of a substance that exhibits a tackiness for enhancing friction between the shoe sole and the any hard floor. The tackiness-enhancing substance may be time-released or discharged from within the shoe sole onto the lower surface(s) of the sole that make(s) contact with the smooth hard playing surface or may be in response to compression or shear forces acting on the sole during play to prolong the tacky properties and reduce slippage. A visual indicator may be provided for notifying the player that it is time to replace the worn or used pod and insert a fresh pod or insert into the pod(s) to maintain high levels of gripping.
Abstract:
A catalyst composition for use in the preparation of a polyester or copolyester is disclosed. The catalyst composition comprises the combination of (a) a titanium-based compound or zirconium-based compound, and (b) a lanthanide series compound or hafnium. Various titanium-based compounds and lanthanide-based compounds are described. Moreover, in some embodiments, the catalyst composition may further comprise a phosphate-forming compound. Another aspect of this invention is an improved method for preparing a polyester, based, for example, on the two-stage process of ester interchange and polycondensation. The method is carried out in the presence of the catalyst composition described above.
Abstract:
A melt condensation polymerization process for preparing siloxane copolycarbonates is provided. The process includes reacting an aromatic dihydroxy compound, carbonic acid diester, hydroxyaryl terminated polydiorganosiloxane and catalyst with a salt.
Abstract:
An athletic shoe coating for traction enhancement includes a pressure sensitive adhesive (PSA) and a tackyfying resin and a film former initially in solution within a solvent suitable for application to the surface of a shoe sole in liquid form, such as by spraying, rolling and brushing the solution onto the shoe sole. After the solvent evaporates a film or coating attaches or is bonded to the shoe sole that exhibits the property of dynamically modifying the traction properties of the shoe sole when pressure and shear forces are applied to the coating. Such modification causes the exterior surface of the film or coating to “refresh” the exposed surface upon impact. This imparts continued tackiness over extended use. Impact modifiers may be added for controlled release of a solvent to temporarily dissolve or soften the film or coating to promote such refreshment of the coating outer surface.
Abstract:
The present invention relates to novolak resins prepared with, inter alia, one or more alkylphenols. The invention further relates to compositions comprising the novolak resins, such as vulcanizable rubber compositions, and to products obtained therewith.
Abstract:
The present invention relates to novolak resins prepared with, inter alia, one or more alkylphenols. The invention further relates to compositions comprising the novolak resins, such as vulcanizable rubber compositions, and to products obtained therewith.
Abstract:
A melt condensation polymerization process for preparing polyester carbonate is provided. The process includes the steps of pre-reacting a carbonic acid diester and catalyst with a diacid and reacting at least one aromatic dihydroxy compound with the reacted pre-reaction mixture.
Abstract:
An improved process for preparing a nitrogen or oxygen containing organoalkoxysilane such as an isocyanurate or fumarate by reacting a haloalkylaikoxysilane such as a chloropropytrimethoxysilane and a reactant of either a cyanate or an ammonium salt of an organic acid of C1-C20 carbon atoms or a metal salt of an organic acid of C1-C20 carbon atoms or mixtures thereof to a reaction temperature of at least about 80.degree. C. to about 200.degree. C., the improvement is in carrying out the reaction in the presence of a guanidinium salt phase as a transfer catalyst such as hexaethylguanidinium chloride. The improved process also is reacted wherein the temperature increase from the exotherm reaction above the reaction temperature ranges from about 0.degree. C. to about 120.degree. C. A preferred metal cyanate is sodium cyanate.
Abstract:
A wiping device may be a friable layer or an absorbent pad made of a material that can absorb and retain a fluid composition and can be attached or is attached to an item of clothing, such as a sock, shoe, compression sleeve, etc. The device is impregnated with an adhesive-type tacky substance that is released when a shoe sole is wiped against it to clean the shoe sole and allow surface dust and debris to be removed from the shoe sole. The deposited substance also forms a film or coating that remains adhered to the surface of the shoe sole to improve traction by imparting tackiness to the shoe sole.
Abstract:
An athletic shoe coating for traction enhancement includes a pressure sensitive adhesive (PSA) and a tackyfying resin and a film former initially in solution within a solvent suitable for application to the surface of a shoe sole in liquid form, such as by spraying, rolling and brushing the solution onto the shoe sole. After the solvent evaporates a film or coating attaches or is bonded to the shoe sole that exhibits the property of dynamically modifying the traction properties of the shoe sole when pressure and shear forces are applied to the coating. Such modification causes the exterior surface of the film or coating to “refresh” the exposed surface upon impact. This imparts continued tackiness over extended use. Impact modifiers may be added for controlled release of a solvent to temporarily dissolve or soften the film or coating to promote such refreshment of the coating outer surface.