http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-663043-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_190181dda29944f32a412c304e39cef9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_445a797690bdb3709f7c1a0a64853ba2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_02310b48c0087039f601b40da5998f5e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_11e4dc4f595fe19bde0dc679f6a7bac3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B64D15-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B64D15-12 |
| filingDate | 1948-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1951-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-663043-A |
| titleOfInvention | Improvements in aircraft components having anti-icing means and method for applying such anti-icing means |
| abstract | A cast monohydroxyphenol-aldehyde resin or a resorcinol-formaldehyde resin admixed with natural or synthetic rubber latex or a non-conjugated double-bonded compound containing the group CH2=C< is applied to a semi-conductive layer in contact with spaced electrodes on an aircraft component and hardened at below 100 DEG C. to produce an anti-icing coating. The monohydroxyphenol resins are obtained by condensing one mole. of a monohydroxyphenol with 2 to 2.5 moles. of formaldehyde, using an alkaline catalyst, applying the composition to the semi-conducting layer as a solution or dispersion also containing an acid catalyst, e.g. lactic acid or p-toluene sulphonic acid and condensing. Plasticizers such as glycerol or triacetin may also be present. Particularly suitable resorcinol formaldehyde compositions are aqueous alkaline solutions of a partial condensation product of resorcinolformaldehyde mixed with rubber latex in the proportions of 1.5 to 5 parts of rubber per part resin. Suitable compounds containing the group CH2=C< are polystyrene, polymethyl and polyethyl acrylates, polymethyl, ethyl or propyl methacrylates and polyallyl methacrylate. They may be used as monomers or as partially polymerized syrups containing a catalyst, e.g. benzoyl peroxide, biacetyl or benzophenone; ultraviolet light may also be used. Further suitable resins are contact resins such as polyester-polyvinyl resins in which the polyvinyl compound is, e.g., polystyrene or polydiallyl phthalate.ALSO:Anti-icing means are formed on an air-craft component by forming thereon a semi-conductive layer in contact with spaced electrodes, covering the layer with a film of a liquid composition comprising (1) a cast monohydroxy-phenol-aldehyde resin or (2) a resorcinol-formaldehyde resin mixed with natural or synthetic rubber latex or (3) a non-conjugated double-bonded compound containing the group CH2=C<-, and hardening the film at below 100 DEG C. The semi-conductive layer may comprise a dispersion of acetylene black in a solution of rubber, silicone resin, or a polyvinyl formal in a volatile solvent. |
| priorityDate | 1948-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.