http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1217357-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_130b7a5c71921f65e2266a7c9e837d4a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G8-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L61-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G8-38 |
| filingDate | 1968-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b06c0124eb7736f278202e8a37167a4a |
| publicationDate | 1970-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1217357-A |
| titleOfInvention | Rubber modified novolak resins |
| abstract | 1,217,357. Polychloroprene modified phenolic resins. B.P. CHEMICALS (U.K.) Ltd. 18 Sept., 1969 [1 Oct., 1968], No. 46440/68. Headings C3P and C3R. Polychloroprene modified phenolic resins are produced by allowing an aldehyde to react with a molar excess of a phenol at an initial pH of less than 7 and in the presence of a polychloroprene rubber latex. The aldehyde may be formalin and the phenol phenol itself. A 0À1-50% molar excess of the phenol may be used. The initial pH may be 1-6À9 and the temperature 50-200 C. The acid catalyst may be 1-5% of oxalic acid. The latex may be emulsified with sodium rosinate or an alkylated tolyl methyl trimethylammonium chloride. 5-150 parts of the rubber (dry weight) may be used per 100 parts of formaldehyde. These may be added to the reaction mixtures initially or later, e.g. after the free formaldehyde contact has been reduced below 2% and the pH made alkaline. When reaction is complete the latex medium may be distilled off under reduced pressure. Fillers, phenolic resin curing agents, e.g. hexamethylene tetramine, and rubber curing agent may be added to the product which may be used as a rubber adhesive. |
| priorityDate | 1968-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.