http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1501244-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d863d6b88808c12f1bb57c14d94c5109 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D175-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06N3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4833 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D175-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06N3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 1975-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1501244-A |
| titleOfInvention | Process for producing microporous sheet materials |
| abstract | 1501244 Microporous polyurethane coatings TEIJIN CORDLEY Ltd 17 Sept 1975 [3 Oct 1974] 38233/75 Heading B2E [Also in Division C3] A microporous sheet material is produced by (1) preparing a resin suspension in an organic solvent of boiling point not more than 120‹C, the solubility at 25‹C of water in the solvent being 1-50 g per 100 g of solvent, the resin being a polyurethane elastomer containing 2-25% by weight of polyoxyethylene segments which may optionally be mixed with a polyurethane elastomer not containing such segments and consisting of 20- 85% by weight of a part soluble in the organic solvent and 80-15% of an insoluble part; (2) mixing the organic solvent suspension with not less than 50% by weight (based on the resin) of water to form a water-in-oil dispersion; (3) coating or impregnating a substrate with the resulting dispersion; (4) optionally evaporating a part of the organic solvent; (5) contacting the coated or impregnated substrate with a coagulant having a "coagulation value" (as defined in the specification) of not more than 25; and (6) drying the product. The substrate may be a woven. non-woven or knitted fabric or may be a release support such as plastics film, silicone-coated paper or polished glass or metal. The solvent may particularly be methyl ethyl ketone, methyl acetate or mixtures of THF with methyl ethyl ketone. methyl iso-butyl ketone or n-hexane, other ketones. esters and mixtures also being specified. The coagulant is a C 1-8 alcohol or a hydrocarbon such as hexane, heptane or octane. The resin may additionally comprise up to 20.% by weight of PVC, polyvinylidene chloride, acrylate or methacrylate copolymer, polystyrene, ethylene terephthalate-isophthalate copolymer, cellulose acetate, ethyl cellulose or butyl cellulose. In the Examples, a needled polyethylene terephthalate fabric is both impregnated and then coated with the polyurethane dispersion and may also be provided with a further coating of pigmented polyesterurethane, which further coating may be provided with a leather-like pattern. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4853418-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4510186-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8602843-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2143836-A |
| priorityDate | 1974-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.