| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_42ce27fe21e1ee1f76d01236f428e741 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-2241
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2377-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2377-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-096
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-215 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B33Y70-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L77-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L77-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-14 |
| filingDate |
2018-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09668933deb144e0a7000fd4c2fe128b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f34f57b245a944a1146c8852009e6c4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e02e38db4516a5988ea4c306ab071ad
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bc8ec6b7f28d1f22efbb8c8bf9fc19b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85a1a89582ca7ff60f9a1dc2ce41e910
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25d67569e0cb54a03d4ae049ad1d31fa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83d3744e5259f1fd4db139fc3a481a83 |
| publicationDate |
2021-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-I746887-B |
| titleOfInvention |
Method for making polyamide powders |
| abstract |
This invention provides a method for making polyamide (PA) powders, which comprises the following steps of (a) heating a composition of matter containing PA granules, crystal seeds, and organic solvent to a first temperature of T1 under 1 atm, (b) holding the first temperature of T1 for a first predetermined time so as to totally solve the PA granules in the organic solvent; (c) reducing the first temperature of T1 to a second temperature interval of T2 so as to nucleate the PA in the organic solvent; (d) holding the second temperature interval of T2 for a second predetermined time so as to increase the amount of the PA nucleus in the organic solvent; (e) reducing the second temperature interval of T2 to a precipitated temperature of the PA powder so as to nprecipitate PA powders; and (f) rinsing the PA powders so as to remove the organic solvent; wherein T1 is equal to and greater than the melting point(Tm) of the PA granules, 20℃≦Tm-T2≦30℃, the ratio of the PA granules to the organic solvent calculated with weight is ranging from 0.11 to at least less than the saturated concentration of the PA granules in the solvent, and the content of the crystal seeds is 1% of the PA granules. |
| priorityDate |
2018-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |