| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33a62710796e131599043055d399597f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5fba6a1b47b49f4300e94b443fd9be7c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ee6b35c6f22728b11d2b3744aa00dfd8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2329-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J167-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L29-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J129-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J167-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-246
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L67-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L29-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J129-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J167-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J167-02 |
| filingDate |
2013-06-20^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2016-05-24^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9058bc4b791d938c4070385c85552212
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_769915b910ef3390bb009b727de4d2a0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf9696bc0a93c0d2fd2441759aa4b494
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eadf8908d64f429ec11cc0d35247965e |
| publicationDate |
2016-05-24^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9346985-B2 |
| titleOfInvention |
Methods for preparation of polyester/glyoxalated polyvinyl alcohol semi-interpenetrating polymer network hot-melt adhesive |
| abstract |
A polyester/glyoxalated polyvinyl alcohol semi-interpenetrating polymer network hot-melt adhesive and preparation method therefore, mainly includes the steps of: 1) transesterification of certain amounts of dimethyl terephthalate and another dibasic ester with 1,4-butanediol and other diols in the presence of an organotin catalyst under a nitrogen atmosphere in a reactor, completed upon the amount of distillation of a monohydric alcohol byproduct reaching greater than 95% of the theoretical amount; 2) after the temperature is maintained for a period of time, adding in a stabilizer and a polycondensation catalyst and incrementally increasing the temperature to trigger a polycondensation reaction under a reduced pressure to produce particles of a copolymer, and freezing and pulverizing the copolymer particles to produce a powder of a copolyester; 3) uniformly blending a polyvinyl alcohol/glyoxal mixture with the powder produced in step 2) at ambient temperature to produce the target product. The product is capable of forming an internal semi-interpenetrating network at application temperatures. |
| priorityDate |
2012-12-28^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |