Sucrose benzoate as a tackifier for water sensitive or biodegradable hot melt adhesives
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsMatthew L. Sharak, Charles W. Paul
Life of this patent
Estimating the term…
Abstract
Hot melt adhesive compositions are prepared from a water sensitive or biodegradeable thermoplastic adhesive polymer using sucrose benzoate as a tackifier. More particularly, hot melt adhesive compositions are prepared from 10 to 90% by weight of a biodegradable or water sensitive thermoplastic polymer, 5 to 80% by weight sucrose benzoate, 0 to 80% by weight plasticizing diluent, 0 to 50% by weight wax and 0 to 3% by weight antioxidant.
Claims9
A hot melt adhesive composition comprising 10 to 90% by weight of a water sensitive or biodegradeable thermoplastic adhesive polymer selected from the group consisting of hydroxybutyrate/hydroxyvalerate polymers, polylactide homo- or copolymers, hydroxypropyl cellulose, cellulose or starch esters having a degree of substitution less than 2.5 and hydroxy functional or aliphatic polyesters;
- 5 to 80% by weight sucrose benzoate, 0 to 80% by weight of a plasticizing diluent selected from the group consisting of phthalate plasticizers, liquid plasticizers, benzoate plasticizers, phosphate plasticizers, poly(ethylene glycols) methyl esters of hydrogenated rosins having Ring and Ball melting points below about 60.degree. C., vegetable and animal oils and the polymerization products thereof;
- 0 to 50% by weight of a wax selected from the group consisting of N-(2-hydroxyethyl)-12-hydroxy stearamide, hydrogenated castor oil, oxidized synthetic waxes, polyethylene oxide) having a weight average molecular weight above about 1000 and functionalized synthetic waxes, and 0 to 3% by weight antioxidant.
Dependencies are inferred from the claim text.