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Jacques Ratte and Jean Bigras received US Patent No. 3,872,205 on March 18, 1975, filed October 12, 1973.
The patent's abstract:
Process for bonding flexible sheet insulant, for use in a rocket motor containing a case-bonded solid rocket propellant. The flexible sheet insulant is easily bonded using a low pressure bag molding technique and without intermediate adhesive on the metal or propellant side. Self-adhesive properties of the flexible sheet insulant are retained for long periods when stored at temperatures lower than 40*F before installation and improved resistance to erosion is noted. It 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.
- Author
- Jacques Ratte; Jean Bigras
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 3,872,205
- Date
- March 18, 1975
- Library no.
- ACL Doc 23218 · asbestosclaims.law/library/23218
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 12 pages · 1.0 MB
Where it was listed
- Asbestos, August 1975, in its patents department (the year's issues)
Cite this document
Jacques Ratte, Jean Bigras. “Molding process for bonding insula in rachet motor casing (US Patent 3,872,205, 1975).” March 18, 1975. US Patent No. 3,872,205. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 23218. https://asbestosclaims.law/library/23218.
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