Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1989-04-03
1991-03-12
Kendell, Lorraine T.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428288, 428293, 428294, 428295, 428372, 428401, 428408, 428413, 428357, 523400, 523468, 525529, 525530, B32B 516, C08K 702
Patent
active
049992384
ABSTRACT:
Damage tolerant composites comprising high strength filaments in the form of bundles or tows of continuous fiber and a tough phase separated, crosslinked epoxy resin matrix are disclosed. The crosslinked epoxy resin matrix comprises infusible particles made from a rubber polymer that reside primarily between plies of the composite and critically have a median particle size between 10-75 microns. Prepregs for making the damage tolerant composites and methods of making such prepregs and the epoxy resin compositions thereof are also disclosed The epoxy resin compositions comprise the infusible particles which become segregated as to size on a surface layer of the prepreg during the process of combining the high strength filaments of the prepreg and the resin containing the epoxy resin composition.
REFERENCES:
patent: 3837904 (1974-09-01), Hill
patent: 3894112 (1975-07-01), Pagel
patent: 3926903 (1975-12-01), Scola
patent: 3926904 (1975-12-01), Scola
patent: 4035550 (1977-07-01), Suh et al.
patent: 4107116 (1978-08-01), Riew et al.
patent: 4187347 (1980-02-01), Brook
patent: 4195113 (1980-03-01), Brook
patent: 4220686 (1980-09-01), Brook
patent: 4222918 (1980-09-01), Zentner et al.
patent: 4264655 (1981-04-01), Brook
patent: 4524181 (1985-06-01), Adam et al.
patent: 4539253 (1985-09-01), Hirschbuehler et al.
patent: 4621980 (1986-11-01), Reavely et al.
patent: 4656207 (1987-04-01), Jabloner et al.
patent: 4656208 (1987-04-01), Chu et al.
patent: 4680076 (1987-07-01), Bard
C. B. Bucknall "The Micromechanics of Rubber Toughening" Makromol. Chem., Macromol. Symp. 20/21, 435-439 (1988).
Drake and Siebert, "Elastomer-Modified Epoxy Resin for Structural Applications" Sample Quarterly, Jul. 1975.
"Development of Resins for Damage Tolerant Composites-A Systematic Approach", 29th National Sampe Symposium, Apr. 3-5, 1984, pp. 422-436.
"Building Design with Fibre Reinforced Materials" by F. J. McGarry, Royal Soc. Lond. A., 319, 59-68 (1970).
"Phase Separation Behavior of Rubber-Modified Epoxies" by T. T. Wang and H. M. Zupko, Journal of Applied Polymer Science, vol. 26, pp. 2391-2401 (1981).
Goldberg Mark
Hercules Incorporated
Kendell Lorraine T.
Ross Jr. Edmund C.
LandOfFree
Damage tolerant composites containing infusible particles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Damage tolerant composites containing infusible particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Damage tolerant composites containing infusible particles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-447898