 Electrostatic paper base and method of making the same |
| OF THE INVENTION AND SPECIFIC EXAMPLES As indicated above, the present invention contemplates the ... |
|
| Aqueous emulsion coating for individual fibers of a cellulosic sheet providing improved wet strength |
| I claim: 1. A basic emulsion composition, that can provide water resistance to a cellulosic sheet ... |
|
| Method of manufacturing gloss paper |
| What is claimed is: 1. A method of manufacturing gloss coated paper comprising the steps of: ... |
|
| Repulpable, reinforced corrugated containers |
| OF THE PREFERRED EMBODIMENT Referring to the drawings and specifically to FIG. 1 thereof, there is ... |
|
| Disc medium substrate and disc device |
| We claim: 1. A substrate for disc medium for use in a recording and/or reproduction system ... |
|
| Snow plowable pavement marker |
| The embodiments of the invention in which an exclusive property or privilege is claimed are defined ... |
|
| Rotary power trowel |
| It is accordingly an object of the present invention to provide a rotary power trowel having a ... |
|
| Drive mechanism |
| I claim: 1. Apparatus (10), comprising: a frame (18) including a yoke (16); a compacting drum (14) ... |
|
|
Curable epoxy resin mixtures
| Details |
Inventors: Haug, Theobald; Stockinger, Friedrich;
Assignee: Ciba Geigy Corporation (Ardsley, NY)
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:
Curable mixtures containing (a) epoxide compounds with on average more than one 1,2-epoxide group per molecule, (b) the condensates prepared from certain phenols, certain amines and aldehydes or ketones in an acid medium and, where relevant, (c) curing accelerators. The novel curable mixtures have a good storage stability and give shaped substances with outstanding resistance to chemicals. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A curable mixture comprising (a) an epoxide compound with on average more than one 1,2-epoxide group per molecule, (b) a condensate prepared in an acid medium from a phenol, amine and aldehyde or ketone, which is obtainable by reacting (1) a substituted monohydric phenol which is unsubstituted in the p-position and in one of the two o-positions or in both o-positions, an unsubstituted dihydric mononuclear phenol or an unsubstituted or substituted dihydric or polyhydric, dinuclear or polynuclear phenol which contains at least two reactive nucleus positions for reaction with an aldehyde or ketone, (2) a substituted aromatic monoamine which contains at least one reactive nucleus position for reaction with an aldehyde or ketone, an unsubstituted aromatic mononuclear or dinuclear diamine or a substituted aromatic mononuclear or dinuclear diamine which contains at least two reactive nucleus positions for reaction with an aldehyde or ketone, and (3) an aldehyde or ketone, with one another at a pH value of not more than 6, the molar ratio of phenol to amine to aldehyde or ketone in the reaction mixture being 1:1:1.
2 to 6:1:8, and 0.
9 to 1.
5 equivalents of active hydrogen atoms, based on the OH and NH.
sub.
2 group, being present in the curable mixture per 1 epoxide equivalent.
2.
A mixture according to claim 1 which contains an epoxide compound (a) with an aromatic group in the molecule.
3.
A mixture according to claim 1, which contains a polyglycidyl ether of a polyhydric phenol or an N-glycidyl compound of an aromatic amine as the epoxide compound (a).
4.
A mixture according to claim 1, which contains a condensate (b) in which reaction component (1) is a substituted monohydric phenol which is unsubstituted in the p-position and in one of the two o-positions or in the two o-positions, or is a substituted dihydric or polyhydric dinuclear or polynuclear phenol which contains at least two reactive nucleus positions for reaction with an aldehyde or ketone.
5
|
| Related patents |
|
|
Laminated glass with polyurethane resin layer and silane coupling agent layer
We claim: 1. A laminated glass having at least one glass sheet and at least one polyurethane resin film or sheet bonded with a silane coupling agent layer interposed ...
|
|
|
Method of conducting an absorption or desorption reaction between a gas and a solid
We claim: 1. A method of conducting an absorption or desorption reaction between a gas and a solid, said solid being formed by one or more salts in powdery form, in the ...
|
|
|
Thin-film medium with sublayer
It is, therefore, an object of the present invention to provide a magnetic recording medium formed on a nonmetallic substrate. It is also an object of the invention to ...
|
|
|
Fugitive colorant and washable ink compositions
What we claim is: 1. A fugitive colorant solution comprising a chromophore, having at least one sulfonic acid or carboxylic acid functionality, in an amount sufficient ...
|
|
|
Photographic material with developer in AzX emulsion and sublayer
OF THE INVENTION Suitable examples of aluminum supports which can be used in the present invention include supports of pure aluminum and of aluminum alloys. A variety ...
|
|
|
All synthetic fiber interior trim substrate
An object of the present invention is to provide a headliner substrate which is made entirely or predominantly of synthetic fibers such as polyester or polypropylene, so ...
|
|
|
Semi-conductive layer-containing reinforced pressure hose and method of making same
What is claimed is: 1. A flexible hose for conveying and spraying a fluid which comprises a core tube through which the fluid flows under pressure, said core tube having ...
|
|
|
Layered fuel-line hose
As seen in the drawing a tubing for use in a motor vehicle conveying an alcohol-containing liquid, for instance, fuel, comprises a thick outer layer 1, a thick ...
|
|
|
Transparent pre-cure coating for rubbery polymers
What is claimed is: 1. A pre-cure paint comprising: a. a rubbery diene polymer, b. hydrated amorphous silica, c. a zinc salt or zinc complex which is soluble in the ...
|
|
|
Novel coating compositions
I claim: 1. An improved aqueous, resinous coating composition comprising: (a) an acidic resin having an acid number of from 30 to 400, said resins being derived from ...
|
|
|
Optical Systems 
