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US-12624255-B2 - Biodegradable pressure sensitive adhesives

US12624255B2US 12624255 B2US12624255 B2US 12624255B2US-12624255-B2

Abstract

A biodegradable pressure sensitive adhesive includes: % (Parts) Water: 15-37 Defoamer: .000-1.0 Sodium Chloride (NaCl): .000-15.0 Gelatin: 14-26 Glycerin/UREA: 6-18 Vanilla Extract: .000-.700 Sugar/Corn Syrup: 22-42 Preservative: .000-.7 TOTAL: 100.00% and more particularly: % (Parts) Water: 15-30 Defoamer: .3-1.0 Sodium Chloride (NaCl): 9-15.0 Gelatin: 15-26 Glycerin: 6-16 Vanilla Extract: .000-.250 Sugar/Corn Syrup: 24-40 Preservative: .2-.6 TOTAL: 100.00%.

Inventors

  • Richard W. Thomas

Assignees

  • Bio-Bond, LLC

Dates

Publication Date
20260512
Application Date
20210308

Claims (15)

  1. 1 . A biodegradable pressure sensitive adhesive, wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 15-30 Defoamer: .3-1.0 Sodium Chloride (NaCl): 9-15.0 Gelatin: 15-26 Glycerin: 6-16 Vanilla Extract: .000-.250 Sugar or Corn Syrup: 24-40 Preservative: .2-.6 TOTAL: 100.00%.
  2. 2 . The biodegradable pressure sensitive adhesive of claim 1 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 23.497 Defoamer: .67 Sodium Chloride (NaCl): 12.0 Gelatin: 20.45 Glycerin: 11.00 Vanilla Extract: .003 Sugar or Corn Syrup: 32.00 Preservative: .38 TOTAL: 100.00%.
  3. 3 . The biodegradable pressure sensitive adhesive of claim 1 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 23.497 ± 5% Defoamer: .67 ± 5% Sodium Chloride (NaCl): 12.0 ± 5% Gelatin: 20.45 ± 5% Glycerin: 11.00 ± 5% Vanilla Extract: .003 ± 5% Sugar or Corn Syrup: 32.00 ± 5% Preservative: .38 ± 5% TOTAL: 100.00%.
  4. 4 . The biodegradable pressure sensitive adhesive of claim 1 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 23.497 ± 2% Defoamer: .67 ± 2% Sodium Chloride (NaCl): 12.0 ± 2% Gelatin: 20.45 ± 2% Glycerin: 11.00 ± 2% Vanilla Extract: .003 ± 2% Sugar or Corn Syrup: 32.00 ± 2% Preservative: .38 ± 2% TOTAL: 100.00%.
  5. 5 . The biodegradable pressure sensitive adhesive of claim 1 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 21.00 Defoamer: .67 Sodium Chloride (NaCl): 12.0 Gelatin: 22.947 Glycerin: 11.00 Vanilla Extract: .003 Sugar or Corn Syrup: 32.00 Preservative: .38 TOTAL: 100.00%.
  6. 6 . The biodegradable pressure sensitive adhesive of claim 1 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 21.00 ± 5% Defoamer: .67 ± 5% Sodium Chloride (NaCl): 12.0 ± 5% Gelatin: 22.947 ± 5% Glycerin: 11.00 ± 5% Vanilla Extract: .003 ± 5% Sugar or Corn Syrup: 32.00 ± 5% Preservative: .38 ± 5% TOTAL: 100.00%.
  7. 7 . The biodegradable pressure sensitive adhesive of claim 1 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 21.00 ± 2% Defoamer: .67 ± 2% Sodium Chloride (NaCl): 12.0 ± 2% Gelatin: 22.947 ± 2% Glycerin: 11.00 ± 2% Vanilla Extract: .003 ± 2% Sugar or Corn Syrup: 32.00 ± 2% Preservative: .38 ± 2% TOTAL: 100.00%.
  8. 8 . A biodegradable pressure sensitive, wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 34.54 ± 5% Defoamer: .545 ± 5% Sodium Chloride (NaCl): 4.91 ± 5% Gelatin: 17.09 ± 5% Glycerin or Urea: 16.36 ± 5% Vanilla Extract: .545 ± 5% Sugar or Corn Syrup: 25.465 ± 5% Preservative: .545 ± 5% TOTAL: 100.00%.
  9. 9 . The biodegradable pressure sensitive adhesive of claim 8 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 34.54 ± 2% Defoamer: .545 ± 2% Sodium Chloride (NaCl): 4.91 ± 2% Gelatin: 17.09 ± 2% Glycerin or Urea: 16.36 ± 2% Vanilla Extract: .545 ± 2% Sugar or Corn Syrup: 25.465 ± 2% Preservative: .545 ± 2% TOTAL: 100.00%.
  10. 10 . The biodegradable pressure sensitive adhesive of claim 8 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 34.54% Defoamer: .545 Sodium Chloride (NaCl): 4.91 Gelatin: 17.09 Glycerin or Urea: 16.36 Vanilla Extract: .545 Sugar or Corn Syrup: 25.465 Preservative: .545 TOTAL: 100.00%.
  11. 11 . A biodegradable pressure sensitive, wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 31.5 ± 5% Defoamer: .545 ± 5% Gelatin: 17.25 ± 5% Glycerin or Urea: 11.00 ± 5% Vanilla Extract: .545 ± 5% Sugar or Corn Syrup: 38.615 ± 5% Preservative: .545 ± 5% TOTAL: 100.000%.
  12. 12 . The biodegradable pressure sensitive adhesive of claim 11 , wherein the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 31.5 ± 2% Defoamer: .545 ± 2% Gelatin: 17.25 ± 2% Glycerin or Urea: 11.00 ± 2% Vanilla Extract: .545 ± 2% Sugar or Corn Syrup: 38.615 ± 2% Preservative: .545 ± 2% TOTAL: 100.000%.
  13. 13 . The biodegradable pressure sensitive adhesive of claim 11 , the biodegradable pressure sensitive adhesive comprises: % (Parts) Water: 31.5% Defoamer: .545 Gelatin: 17.25 Glycerin or Urea: 11.00 Vanilla Extract: .545 Sugar or Corn Syrup: 38.615 Preservative: .545 TOTAL: 100.000%.
  14. 14 . A method of using a biodegradable pressure sensitive adhesive, comprising: providing the biodegradable pressure sensitive adhesive of any of claims 1-12 ; applying the biodegradable pressure sensitive adhesive to a substrate.
  15. 15 . The method of claim 14 , comprising: applying the biodegradable pressure sensitive adhesive to the substrate using a slot die applicator, to extrude a flat film of adhesive onto the substrate to reduce time for evaporation of water from the biodegradable pressure sensitive adhesive, thereby reducing set-up time for the biodegradable pressure sensitive adhesive.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application claims the benefit of PCT Application No. PCT/US2021/06451, titled “Biodegradable Pressure Sensitive Adhesives,” filed Mar. 8, 2021, which claims the benefit of U.S. Provisional Patent Application Nos. 62/969,997 filed Feb. 4, 2020, and 62/981,725 filed Feb. 26, 2020. The contents of which are incorporated by reference herein in their entirety. SUMMARY Disclosed are natural based biodegradable adhesives. By being biodegradable, the these adhesives allow the materials with which they are used to be recyclable, repulpable and/or compostable, which can substantially increase the value of such materials once used, as well as provide a more green and more environmentally sustainable repurposing of the used materials. A biodegradable adhesive is disclosed for use in at least one chosen from non-woven pressure sensitive adhesive (also PSA) applications for baby diapers, tapes, permanent labels, removable labels, reclosable labels, envelopes, medical products, security bags, insect sticky traps, bandages, feminine hygiene products and adult incontinence products. Such adhesive is applicable to post press permanent and non-permanent bonding finishing adhesive applications to include: in-line and off-line folding units and mailing production by non-contact heated nozzle application on folding and direct mailing machines, that includes, most gluing activities performed on printed materials after printing. These applications include: Mailings;Folding Cartons;Envelopes;Cards (credit card attachment);Product samples;Self mailers;Closing dots;Swirl spray;Auxiliary gluing;Folding;Gluing;Corrugated Boxes;Fugitive Adhesive (also known as “Booger Glue”). These adhesives are also applicable to all types of paper seam non-contact heated nozzle gluing (i.e., folding cartons & corrugated boxes) paper converting applications. These adhesives solve long held paper recycling mill-related problems connected with the use of non-bio-based cold glues & various forms of hot melt based adhesives, to include pressure sensitive adhesives. Also, contamination in recycled paper due to wax, plastic or petroleum adhesives (often referred to as stickies) can be reduced or eliminated when using the present adhesive because it biodegrades into the paper pulp. The adhesives listed below are suitable for use in all current permanent and non-permanent pressure sensitive adhesive applications and includes the following adhesive: % (Parts)Water:15-37Defoamer:.000-1.0 Sodium Chloride (NaCl):.000-15.0Gelatin:14-26Glycerin/UREA: 6-18Vanilla Extract:.000-.700Sugar/Corn Syrup:22-42Preservative:.000-.7 TOTAL:100.00%Viscosity:450-3000 cps.Refracted Solids: 62-80% Further more specific adhesives include the following: % (Parts)Water:15-30Defoamer: .3-1.0Sodium Chloride (NaCl):  9-15.0Gelatin:15-26Glycerin: 6-16Vanilla Extract:.000-.250Sugar/Corn Syrup:24-40Preservative:.2-.6TOTAL:100.00%Viscosity:1500-3000 cps.Refracted Solids: 62-80%and % (Parts)Water:23.497Defoamer:.67Sodium Chloride (NaCl):12.0Gelatin:20.45Glycerin:11.00Vanilla Extract:.003Sugar/Corn Syrup:32.00Preservative:.38TOTAL:100.00%Viscosity:2,500 cps., ± 500 cps.Refracted Solids:74.0% ± 3%and % (Parts)Water:23.497 ± 5% Defoamer: .67 ± 5%Sodium Chloride (NaCl): 12.0 ± 5%Gelatin:20.45 ± 5%Glycerin:11.00 ± 5%Vanilla Extract: .003 ± 5%Sugar/Corn Syrup:32.00 ± 5%Preservative: .38 ± 5%TOTAL:100.00%Viscosity:2.500 cps., ± 500cps.Refracted Solids:74.0% ± 3% and % (Parts)Water:23.497 ± 2% Defoamer: .67 ± 2%Sodium Chloride (NaCl): 12.0 ± 2%Gelatin:20.45 ± 2%Glycerin:11.00 ± 2%Vanilla Extract: .003 ± 2%Sugar/Corn Syrup:32.00 ± 2%Preservative: .38 ± 2%TOTAL:100.00%Viscosity:2.500 cps., ± 500cps.Refracted Solids:74.0% ± 3%  and % (Parts)Water:21.00Defoamer:.67Sodium Chloride (NaCl):12.0Gelatin:22.947Glycerin:11.00Vanilla Extract:.003Sugar/Corn Syrup:32.00Preservative:.38TOTAL:100.00%Viscosity:2.000 cps. ±500 cps.Refracted Solids:68% ± 3%and % (Parts)Water:21.00 ± 5%Defoamer: .67 ± 5%Sodium Chloride (NaCl): 12.0 ± 5%Gelatin:22.947 ± 5% Glycerin:11.00 ± 5%Vanilla Extract: .003 ± 5%Sugar/Corn Syrup:32.00 ± 5%Preservative: .38 ± 5%TOTAL:100.00%Viscosity:2.000 cps. ± 500cps.Refracted Solids: 68% ± 3%and % (Parts)Water:21.00 ± 2%Defoamer: .67 ± 2%Sodium Chloride (NaCl): 12.0 ± 2%Gelatin:22.947 ± 2% Glycerin:11.00 ± 2%Vanilla Extract: .003 ± 2%Sugar/Corn Syrup:32.00 ± 2%Preservative: .38 ± 2%TOTAL:100.00%Viscosity:2.000 cps. ± 500cps.Refracted Solids: 68% ± 3%and Water:34.54%Defoamer:.545Sodium Chloride (NaCl):4.91Gelatin:17.09Glycerin/UREA:16.36Vanilla Extract:.545Sugar/Corn Syrup:25.465Preservative:.545TOTAL:100.00%Viscosity: (Brookfield Model RVT Viscometer at530 cps. ± 250 cps.20-rpm's at 150 F.)Refracted Solids:62.5%This adhesive particularly applicable as a fugitive plastic adhesive replacement.and % (Parts)Water:34.54 ± 5% Defoamer:.545 ± 5%Sodium Chloride (NaCl):4.91 ± 5%Gelatin:17.09 ± 5% Glycerin/UREA:16.36 ± 5% Vanilla Extract:.545 ± 5%Sugar/Co