Back to results
US 7,125,921 B2Granted
Polyvinyl butyral sheet having antiblocking characteristics
AssigneeSolutia Inc.
InventorsPing Yuan, John J. D'Errico
Life of this patent
Estimating the term…
Abstract
A polymer sheet comprising a fatty acid amide featuring enhanced antiblock characteristics. Also a method of manufacturing a polymer sheet by a method comprising incorporating a fatty acid amide with the polymer. Further, a laminated safety glass comprising two sheets of glass with an interlayer polymer sheet disposed therebetween wherein the polymer sheet has a fatty acid amide incorporated therewith.
Claims14
A method of manufacturing a polymer sheet having antiblocking properties, comprising:
- incorporating a fatty acid amide with said polymer sheet, wherein said polymer sheet is a plasticized polyvinyl butyral sheet and said fatty acid amide has the formula
- R—CO—NH—R′,
- wherein R defines an anti-blocking, segment comprising a hydrocarbon chain having about 12 to about 40 carbon atoms, and R′ defines H or a hydrocarbon chain having 1 to about 40 carbon atoms.
A polymer sheet having antiblocking properties formed by the process comprising:
- incorporating a fatty acid amide with said polymer sheet, wherein said polymer sheet is a plasticized polyvinyl butyral sheet and said fatty acid amide has the formula
- R—CO—NH—R′,
- wherein R defines an anti-blocking segment comprising a hydrocarbon chain having about 12 to about 40 carbon atoms, and R′ defines H or a hydrocarbon chain having 1 to about 40 carbon atoms and wherein said fatty acid amide is incorporated by introducing said fatty acid amide into an extrusion batch of melted polymer.
Dependencies are inferred from the claim text.