http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1232797-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-692 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-7021 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D5-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-702 |
| filingDate | 1968-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1232797-A |
| abstract | 1,232,797. Magnetic recording medium. ZONAL FILM (MAGNETIC COATINGS) Ltd. 20 June, 1969 [24 June, 1968], No. 30030/68. Heading H1H. In a magnetic tape comprising a support bearing a dispersion of magnetic particles in a binder, the binder consists essentially of (1) a film-forming polymer non-reactive to isocyanate groups and (2) a polyisocyanate based elastomer which has been formed by reaching a butadieneacrylonitrile-acrylic acid copolymer with a compound containing free isocyanate groups e.g. a diisocyanate. Specified supports are polyvinylchloride, cellulose acetate and polyethylene terephthalate; specified film-forming polymers are cellulose acetate, acetate-butyrate or nitrate, polyvinyl chloride-acetate, and vinylidene chloride-acrylonitrile copolymer. The coated support is preferably maintained at elevated temperature e.g. 35-45‹ C. for at least 8 hours. In an example, an orientated polyethylene terephthalate support is coated with a dispersion of acicular γ-Fe 2 O 3 particles in a methyl ethyl ketone solution of vinylidene chloride-acrylonitrile, butadiene-acrylonitrileacrylic acid, and a diisocyanate. The binder is cured at 40‹ C. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5512124-A |
| priorityDate | 1968-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.