http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19628146-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0066 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0008 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-771 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-77 |
| filingDate | 1996-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_747bd3c5a5b455d94b8a1e98c8e34112 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f70e6101fcf5f6b0748cb72de33d5aeb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19f5e7d3f6c86e8d4bc5e76daddd488b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e1146e0379bab11a4c2ef0810490f7b |
| publicationDate | 1998-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-19628146-A1 |
| titleOfInvention | Process for the production of cellular polyurethane elastomers based on 3,3'-dimethoxy-4,4'-diisocyanatodiphenyl |
| abstract | Production of microcellular polyurethane elastomers is claimed by reacting (A) high mol. polyhydroxy compounds and optionally (B) low. mol. chain extenders and/or crosslinkers with (C) 3,3'-dimethoxy-4,4'- diisocyanato-diphenyl in presence or absence of (D) catalysts, foaming agents etc.. Preferably the polyhydroxy component (A) is of functionality 2-3 and mol. wt. 500-6,000 and is especially a difunctional polyester polyol, OH-containing polycarbonate or polyoxybutylene glycol of mol. wt. 800-3,500 while the chain extender is an alkane diol, dialkylene glycol or polyoxyalkylene glycol of mol. wt. up to 800 and the crosslinker is also of mol. wt. up to 800 and is a tri-or tetra-hydric alcohol or polyoxyalkylene polyol of functionality 3-4. Preparation of the elastomer is by: (1) first preparing a prepolymer of NCO content 2-20 wt.% by reacting (C) with (A) and optionally (B) and then reacting this prepolymer with water and optionally also (B); or (2) first reacting (C) with part of (A) and optionally also (B) and then reacting the prepolymer obtained with a mixture of water, the remainder of (A) and optionally also (B). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6784219-B2 |
| priorityDate | 1996-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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