US 4879419
HYDROXYL-TERMINATED POLYEPICHLOROHYDRIN POLYMERS
Assignee
MINNESOTA MINING AND MANUFACTURING COMPANY
Filed
Jul 1, 1985
Granted
Nov 7, 1989
Location
ST. PAUL MN US
Abstract
Hydroxyl terminated polyepichlorohydrin having a polydispersity of less than 1.2 and a molecular weight of at least 2000, and method of preparation using stannic chloride and strong carboxylic acid co-catalysts.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jan 2, 1986
Rescinded
Feb 3, 1989
Duration
3 years, 1 month
Inventor
- 1BIRGER JOHANNESSEN
Record Details
- Patent number
- US 4879419
- Application
- 00675091
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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Back to patent indexSource: USPTO 35 USC §181 secrecy order records