| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d95d9cc55b6c4f8c15e96f3a6434da2a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2915
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2401-063
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2331-021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T442-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T442-2738
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2907
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2363-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2505-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-1362
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24669
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-1376
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24421
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24174
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24149
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T442-3114
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T442-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2101-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24909
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2101-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T442-2984 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B5-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D03D15-41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D03D15-275
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-243
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D03D15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D03D15-267
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D03D9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C70-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D03D15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B5-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C70-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-04 |
| filingDate |
2000-03-20^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2005-11-16^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6a3481c513373f95fbb18dc3b74a0a5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e004a24e65cdcb92b2523e4f05d45c4f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_592f9f6dfe2861712ea6a66558e7be95
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddd2ab2f916104d7e6e6f9f373c0c597 |
| publicationDate |
2005-11-16^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1205507-B1 |
| titleOfInvention |
Core-crush resistant fabric and prepreg for fiber reinforced composite sandwich structures |
| abstract |
A core crush resistant prepreg has woven fabric with areal weight of 150-400 g/m2> which consists essentially of carbon fiber warp and weft tow strands impregnated with hardenable polymeric resin composition (RC). RC has epoxy functionality of greater than 2 and tandelta of 1-2, 0.7-2 and 0.5-2 at 70, 100 and 140[deg]C respectively. The prepreg has average fiber tow aspect ratio of less than 15.5. The prepreg has openness of at least 1% and thickness of at least 0.27 mm. Each of the tow strands has total filament count of about 3000. The tow strands has a predetermined and substantially stable non-spherical cross section which is preferably diamond shaped. The woven fabric (30) with plain weave pattern has carbon fiber tow strands in direction (A) interweaving with carbon fiber tow strands in direction (B). Tow strands in direction (A) are (un)twisted and strands in direction (B) are never twisted. Tow aspect ratio in direction (A) is not greater than 11 and tow aspect ratio in direction (B) is at least about 15.5. Independent claims are also included for the following: (i) method for evaluating core crush resistant properties of a prepreg; and (ii) fiber reinforced composite structure. |
| priorityDate |
1999-03-23^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |