http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3873460-D1

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assignee http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8
classificationCPCAdditional http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0033
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0016
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0008
classificationCPCInventive http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-00
classificationIPCInventive http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-65
filingDate 1988-09-20^^<http://www.w3.org/2001/XMLSchema#date>
grantDate 1992-09-10^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95437bf0bcb7394b2d0149b1574df7d4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fbd5ff539d96f0ed060bdc6e392d2f36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07dab6d76af4abed3465b99a3887c5cc
publicationDate 1992-09-10^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber DE-3873460-D1
titleOfInvention METHOD FOR PRODUCING HEAT-RESISTANT POLYURETHANE URBAN ELASTOMERS.
abstract Polyurethane-urea elastomers are prepd. by a 1- or multi-stage conversion, free froms olvent, of (a) polyisocyanates, (b) higher mol. cpds. with NH2 or OH gps., opt. (c) low-mol. poly-OH cpds. or aromatic diamines as chain extenders, and (d) diaminodiphenylureas of formula (I) in powder form. reaction is in heterogeneous pahse, at temps. below the m.pt. of (d). Pre-polymers from (a) and (b) may replace these components. R1, R2, R3, R4 = H or 1-6C alkyl; and the NH2 gps. are in m- and/or p-position to the urea gp..
priorityDate 1987-09-29^^<http://www.w3.org/2001/XMLSchema#date>
type http://data.epo.org/linked-data/def/patent/Publication

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http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419483880

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