IP Library Granted Patent US 8,961,680
Granted Patent B2
US 8,961,680 · App. 14/172,578 · Granted Feb 24, 2015

Solvent formulations

Inventors: David Anthony Pasin (Vancouver, CA); Diego López-Arias (Vancouver, CA)
Assignee: TBF Environmental Technology Inc.
C09D7/001A61K8/34A61K8/37A61Q3/02A61Q3/04C07C33/22
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Quick Facts
Patent No.
US 8,961,680
App. No.
14/172,578
Granted
Feb 24, 2015
Kind
B2
Abstract

The present disclosure provides, in part, a solvent composition including an an acetic acid alkyl (C 1 -C 4 ) ester (e.g., methyl acetate (MA), ethyl acetate (EA), or tert-butyl acetate (TBAc)) and a carbonate ester (e.g., dimethyl carbonate, or propylene carbonate).

Claims (31)

1. A solvent composition comprising:

(a) methyl acetate in an amount between about 65% v/v and about 85% v/v;

(b) dimethyl carbonate in an amount between about 10% v/v and about 25% v/v; and

(c) benzyl alcohol in an amount between about 6.5% v/v and 12% v/v.

2. The solvent composition of claim 1 consisting essentially of:

(a) methyl acetate in an amount of about 72% v/v;

(b) dimethyl carbonate in an amount of about 20% v/v; and

(c) benzyl alcohol in an amount of about 8% v/v.

3. The solvent composition of claim 1 , wherein the flash point of the solvent composition is at least −2° C.

4. The solvent composition of claim 1 , wherein the flash point of the solvent composition is about 0° C.

5. The solvent composition of claim 1 , wherein the maximum incremental reactivity of the solvent composition is no greater than 0.57.

6. The solvent composition of claim 1 , wherein the maximum incremental reactivity of the solvent composition is about 0.10.

7. The solvent composition of claim 1 , wherein the evaporation rate of the solvent composition is at least 1.4.

8. The solvent composition of claim 1 , wherein the evaporation rate of the solvent composition is about 3.62.

9. The solvent composition of claim 1 , wherein the solvent composition is substantially anhydrous.

10. A product, comprising:

the solvent composition of claim 1 ,

wherein the product is as a methyl ethyl ketone replacement or acetone replacement.

11. The solvent composition of claim 1 , wherein the solvent composition is a low toxicity solvent composition.

12. A product, comprising:

the solvent composition of claim 1 ;

wherein the product is a paint, varnish, fiberglass material, gelcoat, paint remover, varnish remover, coating, ink, adhesive, hard surface cleaner, household dye, tint, insecticide, laundry starch, lubricating grease, lubricating oil, automotive chemical, marker, nail polish, nail polish remover, shoe polish, undercoat, waterproofing compound, particleboard, surface preparation, general degreaser, heavy duty degreaser, laboratory wipe solvent, equipment wipe solvent, general purpose surface wipe cleaner, paint gun cleaner, paint line cleaner.

13. A product, comprising:

the solvent composition of claim 2 wherein the product is a component in dissolution and processing of acrylic polymers; the production of resins; formulation or removal of nail polish; fiberglass manufacturing, gelcoat manufacturing; or waterproofing compounds.

14. The solvent composition of claim 13 wherein the resins are acrylic resins, urethane resins, alkyd resins, phenolic resins, polyaspartic urethane resins, epoxy resins, saturated or unsaturated polyester resins.

15. The solvent composition of claim 13 wherein the nail polish is a nitrocellulose-based nail polish, methacrylated monomer-based nail polish, oligonucleotide (“ligomer”)-based nail polish, a UV cure nail polish or a LED cure nail polish.

16. A kit comprising the solvent composition of claim 1 together with instructions for use as a MEK replacement.

17. The solvent composition of claim 1 consisting of:

(a) methyl acetate in an amount of about 72% v/v;

(b) dimethyl carbonate in an amount of about 20% v/v; and

(c) benzyl alcohol in an amount of about 8% v/v.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 20, 2026
From: PROJECT CLEAN INC.
To: AXEL PLASTICS RESEARCH LABORATORIES, INC.
Reel/Frame 074703/0811 →
CHANGE OF NAME Recorded Jan 29, 2025
From: TBF ENVIRONMENTAL TECHNOLOGY INC.
To: 14874081 CANADA LTD.
Reel/Frame 070049/0871 →
CERTIFICATE OF AMALGAMATION Recorded Jan 29, 2025
From: 14874081 CANADA LTD.
To: PROJECT CLEAN INC.
Reel/Frame 070226/0271 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2015
From: PASIN, DAVID ANTHONY; LOPEZ-ARIAS, DIEGO
To: TBF ENVIRONMENTAL TECHNOLOGY INC.
Reel/Frame 034695/0335 →
Continuity (2)
Provisional Application 61775339 · Mar 8, 2013
Related Publication 20140255326A1 · Sep 11, 2014