 Safety booster cable |
| It is the main object of the present invention to provide a booster cable that is safe to use even ... |
|
| Strain relief clamp assembly |
| A strain relief clamp assembly comprising a cylindrical internally threaded coupler or female ... |
|
| Cell and module battery of sealed nickel-metal hydride storage |
| In view of the above-mentioned problems, the primary object of the present invention is to provide ... |
|
| Impact resistant rechargeable battery cell with crumple zone |
| OF THE INVENTION A preferred embodiment of the invention is now described in detail. Referring to ... |
|
| Control system for sodium-sulfur battery |
| The present invention is made in consideration of the above-mentioned problems. It is an object of ... |
|
| Radio controlled, battery-operated model toy |
| An object of this invention is to provide a radio controlled, battery-operated model toy in which a ... |
|
| Overcharge protection battery vent |
| The present invention provides improved cell pressure control systems having a two stage control ... |
|
| Sealed battery and method for manufacturing same |
| An object of the present invention is to provide a sealed battery in which higher battery capacity ... |
|
| Apparatus and method for producing high pressure steam in a fuel cell system |
| In accordance with the principles of the present invention, the above and other objectives are ... |
|
|
Rubber mixtures and vulcanizates produced therefrom
| Details |
Inventors: Weil, Joachim; Sattelmeyer, Richard;
Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DE)
Primary Examiner: O'Keefe; Veronica
Assistant Examiner:
Attorney, Agent or Firm: Hammond & Littell, Weissenberger and Muserlian
A rubber composition having an improved adhesion to steel cord comprising (a) a rubber vulcanizable with sulfur, (b) at least one reinforcing filler containing between 10 and 50% by weight of active silicic acid, (c) a vulcanization agent selected from the group consisting of sulfur and a sulfur donor, (d) at least one phenol resin derived from at least one mono- or polyhydric phenol and aldehyde, wherein at most 30% of the phenol component consists of a mono-nuclear polyhydric phenol, (e) a compound of a metal being capable of having various valencies and (f) a methylene donor and a rubber article prepared from said composition. |
|
DETAILED DESCRIPTION What we claim is: 1.
A rubber composition having an improved adhesion to steel cord comprising (a) a rubber vulcanisable with sulfur, (b) at least one reinforcing filler containing between 10 and 50% by weight of active silicic acid, (c) a vulcanisation agent selected from the group consisting of sulfur and a sulfur donor, (d) at least one phenol resin derived from at least one monovalent phenol or polyvalent polynuclear phenol or polynuclear phenol and aldehyde, (e) a compound of a metal being capable of having various valencies and (f) a methylene donor.
2.
A composition as claimed in claim 1, wherein the amount of silicic acid is between 15 and 40% by weight, referred to the total of component (b).
3.
A composition as claimed in claim 1, wherein the total of filler is between 30 and 150% by weight and that of silicic acid is between 5 and 35% by weight, each referred to the weight of the rubber (a).
4.
A composition as claimed in claim 1, wherein the phenol resin (d) is a novolak selected from the group consisting of a type based on formaldehyde and phenol and a type based on formaldehyde and a phenol mixture containing an amount of at most 70 mol-% of alkylphenol having between 4 and 12 carbon atoms in the alkyl radical, and wherein the molar ratio of the phenol component to the formaldehyde is from 1:0.
6 to 1:0.
9.
5.
A composition as claimed in claim 1, wherein component (e) is a cobalt salt of a saturated or unsaturated carboxylic acid.
6.
A composition as claimed in claim 1, wherein component (f) is a reactive melamine resin obtained by reaction of one mol of melamine with between 0.
5 and 6 mols of formaldehyde which resin is unetherified or the methylol groups of which are at least partially etherified with a monohydric alcohol having between 1 and 12 carbon atoms.
7.
A composition as claimed in claim 1, wherein the amount of the phenol resin (d) is between 0.
5 and 20% by weight, referred to the rubber, the metal content of component (e) is between 0.
05 and 1% by weight, referred to 100 parts by weight of rubber and the amount of methylene donor (e) is between 2 and 50% by weight, referred to the phenol resin
|
|
Fuel Cells 
