http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-723989-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b30d807376962224a66aa244d678104a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T442-218 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B05D3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M15-643 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D183-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06L1-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06L1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D183-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M15-643 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B05D3-02 |
| filingDate | 1952-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1955-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-723989-A |
| titleOfInvention | Improvements relating to compositions containing organo-polysiloxane resins |
| abstract | A coating or waterproofing composition comprises a solution in a hydrocarbon or chlorinated hydrocarbon solvent of an organopolysiloxane resin and an alkyl titanate which can be either monomeric or polymeric. The composition, after removal of solvent, cures at temperatures below 150 DEG C., e.g. 50-90 DEG C. or less, depending on the nature and quantity of the alkyl titanate. Rate of curing decreases with increase in length of the alkyl radical. Large quantities of titanate, e.g. 50 per cent and over, tend to give brittle films. Preferred R : Si ratios for the resin are below 1.7 and preferred organic substitutents in the resin are phenyl or methyl or both. The compositions may include pigments, plasticizers such as solid and liquid paraffins and petroleum jelly, fungicides such as pentachlorophenol and metal soaps. Examples: (1) 3 parts of a resin, (R : si ratio 1.6; R 45 per cent phenyl, 55 per cent methyl), was dissolved in 7 parts toluene and various quantities of butyl titanate added. Test coatings with 0, 10, 20 and 50 per cent butyl titanate were maintained at 25 DEG C. for 30 minutes and then at 75 DEG C. for 120 minutes and the coatings examined and compared for hardness; (2)-(6) various fabrics were immersed in toluene solutions containing a few per cent of organo-polysiloxane resin and a few per cent of butyl or a mixture of ethyl and octyl titanates, centrifuged, dried at 75 DEG C. and tested, by applying a head of water, for waterproofness. In example (3) the composition also contained 4 per cent solid paraffin, and in example (6) 3 per cent of lithium or aluminium stearate.ALSO:Surfaces are coated with a varnish consisting of a solution in an organic solvent of an organo-polysiloxane resin and an alkyl titanate. The coating may be allowed to air-dry but for effective curing the coatings are heated e.g. at temperatures up to 150 DEG C., preferably 50-90 DEG C. In an example glass was coated with four varnishes consisting of a 3 per cent toluene solution of an organo-polysiloxane resin to which 0, 10, 20 and 50 per cent of butyl titanate had been added. A table is given of the hardness of the various coatings after 30 minutes at 25 DEG C. and after 15, 30, 60, 90 and 120 minutes at 75 DEG C. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-1175066-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0011209-A1 |
| priorityDate | 1951-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.