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US 4,288,496 AGranted
Silicone polymer-based release coating agents having organic titanates as stabilizers and tapes
AssigneePhillips Petroleum Company
InventorsRobert E. Reusser, Brenton E. Jones
Life of this patent
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Abstract
Variable strength release coating compositions for use with adhesive tape or film comprise low release strength silicone-based polymers, a high release strength silicone-based polymer, a dihydroxyterminated polymer of a conjugated diene, an organotin or other metal catalyst, and an organo titanate.
Claims15
A coating composition suitable for use with an adhesive tape or film which comprises the following ingredients in parts by weight as follows:
- low release strength silicone-based polymers
- a. high wt. average molecular weight polymethyldihydroxysiloxanes, 3
- b. low wt. average molecular weight polymethylhydrosiloxanes, 0.03-0.3
- high release strength silicone-based polymer, 0.1-0.5
- hydroxy terminated poly(conjugated diene)polymer, 0.01-0.25
- organo titanate, 0.005-0.5
- catalyst, 0.1-0.6
- solvent, 20-200
5 more elements
Dependencies are inferred from the claim text.