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US 11,866,617 B2Granted
Very high solids, thermoset composition with one-side (wet set) adhesion to unprimed/unmodified TPO surfaces
AssigneeFranklin International, Inc.
InventorsJohn William Duffy, Mark A. Vrana, Tanzin Fatima
Life of this patent
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Abstract
Adhesive compositions are described that are suitable for securing building materials, such as TPO membrane roofing to a structural element, such as a roof deck. The adhesive compositions are very high-solids, wet-set adhesives that provide a peel strength that meets or exceeds industry standards, while requiring application to only one of two surfaces to be joined. The adhesive compositions comprise a liquid modifier with hydroxyl functionality, a chlorinated polyolefin and a silylated polymer. Methods of use are also disclosed.
Claims20
An adhesive composition comprising:
- at least one liquid modifier with hydroxyl functionality, selected from the group consisting of methyl styrenated phenol, nonyl phenol, tristyryl phenol, phenyl ethanol, cardanol, cardanol polyol, and ethyl hexanediol at a concentration ranging from 1 to 40 percent by weight of the adhesive composition;
- at least one polyolefin polymer selected from the group consisting of a chlorinated polyolefin and a chlorinated polymer modified with acryl, maleic acid and/or maleic anhydride;
- at a concentration ranging from 1 to 22 percent by weight of the adhesive composition and
- at least one silylated polymer selected from the group consisting of silylated urethanes, silylated cashew nut polyols, silylated castor bean polyols at a concentration ranging from 10 to 60 percent by weight of the adhesive composition.
1 more element
Dependencies are inferred from the claim text.