http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022289638-A1
Outgoing Links
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|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a06d66365c858509215548c1a46edcba |
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-4849 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-63488 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J13-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-5042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-5031 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-62823 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-119 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-62813 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-628 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-634 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-119 |
| filingDate | 2020-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae51e6e41104a6f7f6de8d924ce2223b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f38ff9fe82e7714ecb7d7bb114f76b5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fde3ab6845e24242409eaefdd6a9e41c |
| publicationDate | 2022-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2022289638-A1 |
| titleOfInvention | Semi-crystalline polymer-ceramic core-shell particle powders, and processes for making and articles comprising such powders |
| abstract | Semi-crystalline polymer-ceramic composites and methods. The ceramic-polymer composites, in powder and/or pellet forms, comprise a plurality of core-shell particles, where: each of the core-shell particles comprises a core and a shell around the core; the core comprises a ceramic that is selected from the group of ceramics consisting of: Al 2 O 3 , ZrO 2 , and combinations of Al 2 O 3 and ZrO 2 ; and the shell comprises a semi-crystalline polymer selected from the group of semi-crystalline polymers consisting of: polyphenylene sulfide (PPS), polyaryl ether ketone (PAEK), polybutylene terephthalate (PBT), polypropylene (PP), polyethylene (PE), semi-crystalline polyimide (SC PI), and semi-crystalline polyamide (SC Polyamide). The core-shell particles can be in a powder form (e.g., a dry powder). In pellet form, shells of adjacent core-shell particles are joined to resist separation of the adjacent core-shell particles and deformation of a respective pellet. Methods of forming a ceramic-polymer composite comprise: superheating a mixture of the semi-crystalline polymer (PPS, PAEK, PBT, PP, PE, SC PI, and SC Polyamide), solvent, and the ceramic (Al 2 O 3 and/or ZrO 2 ), to dissolve the semi-crystalline polymer in the solvent; agitating the superheated mixture while substantially maintaining the mixture at an elevated temperature and pressure; and cooling the mixture to cause the semi-crystalline polymer to precipitate on the particles of the ceramic and thereby form a plurality of the present semi-crystalline polymer-ceramic core-shell particles. Methods of molding a part comprise subjecting a powder of the present semi-crystalline polymer-ceramic core-shell particles that substantially fills a mold to a first pressure while the powder is at or above a first temperature above a melting temperature (T m ) of the semi-crystalline polymers. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022411602-A1 |
| priorityDate | 2019-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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