US 4882370
FIBER REINFORCED COMPOSITES WITH IMPROVED GLASS TRANSITION TEMPERATURES
Assignee
MINNESOTA MINING AND MANUFACTURING COMPANY, A CORP. OF DE.
Filed
Jan 27, 1988
Granted
Nov 21, 1989
Location
NORTH OAKS MN US
Abstract
A fiber reinforced composite structure having a glass transition temperature greater than 150° C. is comprised of: a) reinforcing fiber and b) a curable epoxy resin composition comprising (i) one or more epoxides having more than one epoxide group per molecule, of which epoxides at least 10 percent by weight is a 9,9-bis[4-(2,3-epoxypropoxy)phenyl]fluorene, all of the fluorene epoxy present being free of ortho substitution; (ii) an effective amount of one or more epoxy curing agents.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jun 28, 1989
Rescinded
Sep 15, 1989
Duration
2 months
Inventor
- 1ROBERT C. JORDAN
Record Details
- Patent number
- US 4882370
- Application
- 07149101
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
MINNESOTA MINING AND MANUFACTURING COMPANY, A CORP. OF DE.Back to patent indexSource: USPTO 35 USC §181 secrecy order records