Title: Method for binding solid propellant to rocket motor case

Abstract: A method of bonding a solid rocket propellant to a motor casing using a flexible sheet insulant. The flexible sheet insulant is easily installed without intermediate adhesive on the metal or propellant side, retains its self-adhesive properties for long periods when stored at temperatures lower than 40.degree.F before installation and has improved resistance to erosion. The flexible sheet insulant comprises an elastomeric polymer binder in particular a carboxyl-terminated polybutadiene having dispersed therein from 50-80% preferably 65-75% by weight of a siliceous filler reinforcing material at least 50% of which is in the form of fibers. Preferably the filler consists of 50 to 80% asbestos fibers and 20% to 50% asbestos floats.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Ratte, Jacques (Quebec, CA, US)
Bigras, Jean (Quebec, CA, US)

Application Number: 405974
Filing Date: 1973-10-12
Publication_date: 1976-03-09
Assignee: Her Majesty the Queen in right of Canada as represented by the Minister (CA)
Primary Class(es): 264/3.2 102/531, 149/19.9, 149/19.92
Other Classes:
US Patent Ref:

3347047	Oct, 1967	Hartz et al.	102/103.
3507114	Apr, 1970	Webb	264/3.
3734982	May, 1973	Sampson	264/3.

Other Refs:
Primary Examiner: Lechert, Jr., Stephen J.
Assistant Examiner:
Attorney: Edelberg; Nathan, Gibson; Robert P., Deaton; James T.