Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1996-09-17
1998-12-22
Speer, Timothy M.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
1562755, B32B 3100
Patent
active
058513361
ABSTRACT:
A process for making a layered product having a honeycomb core having empty cells, the process comprising the steps of: (a) placing a first layer of an uncured adhesive film on the top side of a central honeycomb core having empty cells, and placing a second layer of an uncured adhesive film on the bottom side of the central honeycomb core; (b) placing a first layer of an uncured prepreg material above the first layer of uncured adhesive film, and placing a second layer of an uncured prepreg material below the second layer of uncured adhesive film; (c) placing a first layer of a dry fiber preform above the first layer of uncured prepreg material, and placing a second layer of a dry fiber preform below the second layer of uncured prepreg material; (d) placing the charge made by steps (a)-(c) inside a mold and closing the mold; (e) heating the mold to the cure temperature of the adhesive film and the prepreg material, and holding the mold at this temperature for sufficient time to cure the adhesive film and the prepreg material; (f) reducing the temperature of the mold to the injection temperature of a selected resin transfer molding (RTM) resin system, and injecting the selected resin transfer molding (RTM) resin system into the mold; (g) holding the temperature of the mold at the cure temperature for the resin transfer molding (RTM) resin system for sufficient time to cure the resin system; and, (h) removing the product from the mold after curing is completed.
REFERENCES:
patent: 2227212 (1940-12-01), Beck
patent: 2745779 (1956-05-01), Ritter et al.
patent: 2839442 (1958-06-01), Whitaker
patent: 3622430 (1971-11-01), Jurisich
patent: 3655818 (1972-04-01), McKown
patent: 3656992 (1972-04-01), Lynam et al.
patent: 3857217 (1974-12-01), Reps
patent: 4089328 (1992-02-01), Doerer et al.
patent: 4162341 (1979-07-01), Norton
patent: 4315557 (1982-02-01), Nakaya et al.
patent: 4353947 (1982-10-01), Northcutt
patent: 4622091 (1986-11-01), Letterman
patent: 4765942 (1988-08-01), Christensen et al.
patent: 4879152 (1989-11-01), Green
patent: 5061418 (1991-10-01), Ware
patent: 5135799 (1992-08-01), Gross et al.
patent: 5186999 (1993-02-01), Brambach
patent: 5234757 (1993-08-01), Wong
patent: 5284702 (1994-02-01), Umemoto et al.
patent: 5338594 (1996-08-01), Wang et al.
patent: 5445861 (1995-08-01), Netwon et al.
Kirk-Othmer, Enecyclopedia of Chemical Technology, Fourth Edition, 1993, vol. 7, pp. 1, 18, 27 and 28.
Material Safety Data Sheet, 3M PR 500 Molding Resin, issued Apr. 26, 1992, 3M General Offices, St. Paul, Minnesota, pp. 1-4.
Chemical Handling Requirements, 3M PR 500 Molding Resin, Document No. A-1330-CHR-0538, dated 21 Jul. 1992 (one page).
Boeing Material Specification, BMS 8-245K, Adhesive for Composite Bonding (350.degree. F. Cure), revised 29 Sep. 1994, pp. 1-17.
Boeing Material Specification, BMS 8-245K, Qualified Products List, 29 Sep. 1994, pp. 1-2.
Material Safety Data Sheet, Dexter Aerospace, SYNSPAND X98993, printed Jun. 24, 1994, pp. 1-5.
A.W. Alteneder et al., Processing and Characterization Study of Honeycomb Composite Structures, Proceedings 38th International SAMPE Symposium and Exhibition, May 10-13, 1993, Anaheim, California.
Cundiff Thomas R.
Frye Bradley A.
Cullom, Jr. Paul C.
Speer Timothy M.
The Boeing Company
LandOfFree
Resin transfer molding in combination with honeycomb core does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resin transfer molding in combination with honeycomb core, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resin transfer molding in combination with honeycomb core will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2042158