US 5747603
POLYMERS USED IN ELASTOMERIC BINDERS FOR HIGH-ENERGY COMPOSITIONS
Assignee
MORTON THIOKOL, INC., A DE CORP.
Filed
May 19, 1987
Granted
May 5, 1998
Location
LOGAN UT US
Abstract
Difunctional, hydroxyl-terminated polymers in which the terminal hydroxyl group is non-primary or hindered are end-capped to provide unhindered, primary, terminal hydroxyl groups which promote an improved cure and improved mechanical properties of the cured elastomer. End-capping chemicals have an hydroxyl-reactive group at one end and a group at the other end which is removable to provide a primary, unhindered hydroxyl group. Short-chain, hydroxyl-terminated polymers are chain-extended with a diisocyanate.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 29, 1988
Rescinded
Mar 7, 1994
Duration
5 years, 5 months
Inventor
- 1JERALD C. HINSHAW
Record Details
- Patent number
- US 5747603
- Application
- 07051979
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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MORTON THIOKOL, INC., A DE CORP.Back to patent indexSource: USPTO 35 USC §181 secrecy order records