| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1d61075d73ada1c4859ec18bca37179f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31964 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L61-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-50 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L61-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B21-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D161-20 |
| filingDate |
1979-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1981-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d66309203cd9416ffcbf8aa2d8f67559
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75e994bb66a8090764686ca3d56183ed
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0be35d2b94116f6f655afff4dc4f3da4 |
| publicationDate |
1981-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4247433-A |
| titleOfInvention |
Process for the preparation of thermosettable urea-formaldehyde resins and method for use thereof |
| abstract |
A method for preparing thermosettable urea-formaldehyde resins having a urea to formaldehyde molar ratio of 1:1 to 1:1.5 wherein urea and formaldehyde are first reacted in an aqueous solution at a molar ratio of 1:1.5 to 1:4 in the pH range between 7.5 to 10, and then condensing the reactants in a pH range from 4 to 6 to a precipitation number of 1:1.5 to 1:10, thereafter adjusting the pH to 7 to 10 and adding the remaining urea to obtain a molar ratio of 1:1 to 1:1.5 and continuing the reaction until a precipitation number of 1:0.5 to 1:3 is obtained. The products obtained have a uniform molecular weight and good penetration properties when used to impregnate supporting webs for coating wood-based panels. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4410685-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4409293-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8754185-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4812366-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4992519-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4968772-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4482699-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012115994-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003216548-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4764570-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4960856-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014262019-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4381368-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9109123-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5110898-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4968773-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004034185-A1 |
| priorityDate |
1978-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |