http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1484454-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac40ffdd0f9b7563bab9d5dccaa8a6b3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-936 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K6-889 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L33-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L33-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K6-083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J133-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J133-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K6-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-00 |
| filingDate | 1973-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1484454-A |
| titleOfInvention | Poly-(carboxylate)cements |
| abstract | 1484454 Acrylic acid copolymer solutions; dental cements NATIONAL RESEARCH DEVELOPMENT CORP 14 Aug 1974 [21 Aug 1973] 39383/73 Heading C3P A cement-forming liquid suitable for use as a component of a poly(carboxylate) cement comprises an aqueous solution of a water-soluble copolymer of acrylic acid, the copolymer having an average molecular weight of less than 20,000, and the solution having a viscosity (measured with a falling sphere viscometer at 21‹ C.) of 5-40 poise. The acrylic acid is preferably copolymerized with itaconic acid; other suitable acidic and non-acidic comonomers are also disclosed. The liquid is suitably prepared by polymerizing acrylic acid with a comonomer in aqueous solution at a temperature above 85‹ C. in the presence of an initiator, e.g. ammonium persulphate, and a chain transfer agent, e.g. isopropanol. In another aspect, the invention relates to a poly(carboxylate) cement pack comprising as one component a water-soluble copolymer of acrylic acid, the copolymer having a molecular weight as specified above and a 20-65% by weight aqueous solution thereof having a viscosity as specified above; and as another component an ion-leachable cement powder which will react with the copolymer component in the presence of water to give a plastic mass which hardens to form a cement. The copolymer component is suitably in the form of an aqueous solution and the cement powder may be, for example, zinc oxide, optionally including a small proportion of another metal oxide (e.g. magnesium oxide), a fused oxide mixture, an oxide glass or, preferably, a fluoroaluminosilicate glass. Optional additives include fluorides, bacteriostatic agents and antibiotics. In addition to dental applications, the cements are also useful in surgery, particularly orthopaedic surgery. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102011077332-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9289358-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4330634-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2222082-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9907732-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10369085-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7488762-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4836768-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4337186-A |
| priorityDate | 1973-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.