http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02275191-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1150d1d80ff7a4912c50ba531a56d6f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_758994071efb42b565fc2c04637be131 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K105-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K75-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C39-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16L9-14 |
| filingDate | 1989-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a88a6e37ce06511275c2645e2e8fb04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9337d68435f07cc9285d1b6c7fd8a399 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_673e1a8cfa8fbfa00e3376f83c478bf7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6aa02e79990915c5398b76d374224364 |
| publicationDate | 1990-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02275191-A |
| titleOfInvention | Embedded piping and its manufacture |
| abstract | PURPOSE:To improve workability and durability by foam-covering integrally the outer periphery of a tubular body with a hard urethane foaming substance with diphenylmethane isocyanate at least as raw solution for elimination of depression at the time of embedding work in a soft ground. CONSTITUTION:The outer periphery of a tubular body 1 consisting of the most suitable clay pipe for sewage and waste water is integrally foam-covered with a hand urethane foaming substance 2. As the raw solution of the hard urethane foaming substance 2, the essential components are diphenylmethane diisocyanate or polyisocyanate component mainly includes it nitrogen atom contained polyol and foaming agent and if necessary, catalyst, and besides other assistant and additive are contained. By covering the tubular body with hard urethane foaming substance, compressive strength, bending strength, etc., are improved, and apparent specific gravity of the hard urethane foaming substance becomes small like 0.03-0.2. It is thus possible to eliminate depression and breakage at the time of embedding work in a soft ground for improved workability and durability. |
| priorityDate | 1989-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.