Coating processes – Mold coating
Patent
1989-06-19
1990-08-07
Bell, Janyce
Coating processes
Mold coating
264338, 427230, 427384, B44D 120
Patent
active
049463691
ABSTRACT:
Silicone elastomer molds or tools are used to shape amine containing resins. If the mold is coated with a silane of the formula R.sub.a SiX.sub.4-a, where R is a monovalent halogenated hydrocarbon having 1 through 6 carbon atoms and the halogen selected from the group consisting of chlorine, bromine, and iodine, X is a monovalent radical that reacts with a hydroxyl radical on silicon, and a is 1 through 3, before use, the shrinkage of the mold with repeated use is decreased and the elastomeric mold or tool life is greatly extended.
REFERENCES:
patent: 2811408 (1957-10-01), Braley
patent: 3607397 (1971-07-01), Walters
patent: 4070224 (1978-01-01), Zemlin
patent: 4534928 (1985-08-01), Martin
patent: 4775554 (1988-10-01), Ponjee
Beck Earl W.
Smith Schuyler B.
Bell Janyce
Dow Corning Corporation
Elliott Edward C.
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