Nonflammable solvent compositions for dissolving polymers and resulting solvent systems
AssigneeZYP Coatings, Inc.
InventorCressie E Holcombe
Life of this patent
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Abstract
A solvent composition and method for making same is disclosed having a composition between 26 to 90 weight percent propionate, butyrate, or combination thereof and between 10 to 74 weight percent fluorinated solvent blend, wherein the fluorinated solvent blend includes t-DCE. A polymer solvent system is also disclosed incorporating the solvent composition and dissolved polymers, such as SEBS polymers. The solvent composition and polymer solvent system is minimally combustible or preferably nonflammable.
Claims38
A solvent composition comprising
- between 60 to 90 weight percent of a propionate, and
- between 10 to 40 weight percent of a fluorinated solvent blend, wherein the fluorinated solvent blend includes t-DCE.
A solvent composition comprising:
- between 26 to 90 weight percent of a propionate, and
- between 10 to 74 weight percent of a fluorinated solvent blend, wherein the fluorinated solvent blend includes t-DCE and HFE 7100.
A polymer solvent system comprising:
- a solvent composition comprising
- between 26 to 90 weight percent of a propionate, and
- between 10 to 74 weight percent of a fluorinated solvent blend, wherein the fluorinated solvent blend includes t-DCE, and
- a polymer,
- wherein the polymer solvent system includes between 50 to 99 weight percent of the solvent composition and 1 to 50 weight percent of the polymer.
A polymer solvent system comprising:
- a solvent composition comprising
- between 26 to 90 weight percent of a propionate, and
- between 10 to 74 weight percent of a fluorinated solvent blend, wherein the fluorinated solvent blend includes t-DCE, and
- a polymer, wherein said polymer includes styrene block copolymer.
A polymer solvent system comprising:
- a solvent composition comprising
- between 26 to 90 weight percent of a propionate, and
- between 10 to 74 weight percent of a fluorinated solvent blend, wherein the fluorinated solvent blend includes t-DCE, and
- a polymer, wherein said polymer includes methyl methacrylate copolymer.
Dependencies are inferred from the claim text.