Fragrance-containing plastic coating compositions for paper substrates

• US 20010046510A1
• Filed: 06/29/2001
• Published: 11/29/2001
• Est. Priority Date: 02/19/1998
• Status: Active Grant

• Current Assignee: Patricia A. Mullen
• Original Assignee: Patricia A. Mullen
• Inventors: Mullen, Patricia A.
• Granted Patent: US 6,346,297 B2
• Time in Patent Office: Days
• US Class Current: 424/401
• CPC Class Codes: A01M 1/2055 Holders or dispensers for solid, gelified or impregnated insecticide, e.g. volatile blocks or impregnated pads
• CPC Class Codes: A01M 2200/012 Flying insects
• CPC Class Codes: A01M 29/12 using odoriferous substances, e.g. aromas, pheromones or chemical agents
• CPC Class Codes: A01N 25/10 Macromolecular compounds
• CPC Class Codes: A01N 25/18 Vapour or smoke emitting compositions with delayed or sustained release
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: A01N 27/00 Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
• CPC Class Codes: A01N 31/02 Acyclic compounds
• CPC Class Codes: A01N 31/04 Oxygen or sulfur attached to an aliphatic side-chain of a carbocyclic ring system
• CPC Class Codes: A01N 31/08 Oxygen or sulfur directly attached to an aromatic ring system
• CPC Class Codes: A01N 37/02 Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/10 Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/40 having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
• CPC Class Codes: A01N 49/00 Biocides, pest repellants or attractants, or plant growth regulators, containing compounds containing the group , wherein m+n>=1, both X together may also mean —Y— or a direct carbon-to-carbon bond, and the carbon atoms marked with an asterisk are not part of any ring system other than that which may be formed by the atoms X, the carbon atoms in square brackets being part of any acyclic or cyclic structure, or the group , wherein A means a carbon atom or Y, n>=0, and not more than one of these carbon atoms being a member of the same ring system, e.g. juvenile insect hormones or mimics thereof containing hydrocarbons A01N27/00
• CPC Class Codes: A01N 61/00 Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
• CPC Class Codes: A01N 65/00 Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof containing compounds of determined constitution A01N27/00 - A01N59/00
• CPC Class Codes: A01N 65/06 Coniferophyta [gymnosperms], e.g. cypress
• CPC Class Codes: A01N 65/10 Apiaceae or Umbelliferae [Carrot family], e.g. parsley, caraway, dill, lovage, fennel or snakebed
• CPC Class Codes: A01N 65/22 Lamiaceae or Labiatae [Mint family], e.g. thyme, rosemary, skullcap, selfheal, lavender, perilla, pennyroyal, peppermint or spearmint
• CPC Class Codes: A01N 65/24 Lauraceae [Laurel family], e.g. laurel, avocado, sassafras, cinnamon or camphor
• CPC Class Codes: A01N 65/28 : Myrtaceae [Myrtle family], e.g. teatree or clove
• CPC Class Codes: A01N 65/36 : Rutaceae [Rue family], e.g. lime, orange, lemon, corktree or pricklyash
• CPC Class Codes: A01N 65/44 : Poaceae or Gramineae [Grass family], e.g. bamboo, lemon grass or citronella grass
• CPC Class Codes: A61L 9/01 : Deodorant compositions compositions released by contact with a liquid A61L9/05
• CPC Class Codes: A61L 9/042 : with the help of a macromolecular compound as a carrier or diluent A61L9/048 takes precedence
• CPC Class Codes: A61L 9/12 : Apparatus, e.g. holders, therefor
• CPC Class Codes: Y10T 428/31591 : Next to cellulosic

Abstract

A fragrance-containing coating composition for paper substrates consists essentially of a polyvinyl chloride (PVC) plastisol and one or more fragrances, for example, an insect repellant. The PVC plastisol contains an adhesion promoter when the paper substrate is a calendered and/or coated paper substrate. The coating is fused at about 320° F. for 15-30 seconds. The coated paper is stored in barrier bags.

Claims

1. A fragrance-containing coating composition for paper substrates, which consists essentially of (a) a polyvinyl chloride plastisol containing polymer and monomer and (b) one or more fragrances.

2. The coating composition of

claim 1

, wherein the polyvinyl chloride plastisol is a dispersion containing polyvinyl chloride polymers, one or more plasticizers, and an adhesion promoter.

3. The coating composition of

claim 1

, wherein the paper is not calendered or coated.

4. The coating composition of

claim 1

, wherein the paper is a calendered and/or coated paper and wherein the polyvinyl chloride plastisol further contains an adhesion promoter.

5. The coating composition of

claim 1

, wherein the coating thickness is about 2 to about 50 mils.

6. The coating composition of

claim 1

, wherein the fragrance is a fruit fragrance, a citrus fragrance, a floral fragrance, a woody fragrance, a leather fragrance, an oriental fragrance, a mint fragrance, and/or a food fragrance.

7. The coating composition of

claim 6

, wherein the fragrance is a natural insect repellent present in an amount sufficient to repel the insect.

8. The coating composition of

claim 1

, further consisting essentially of a component which has a synergistic effect when combined with the fragrance(s).

9. The coating composition of

claim 8

, wherein the synergistic component is dibutyl phthalate.

10. The coating composition of

claim 1

, further consisting essentially of a diluent, a pigment and/or a glitter.

11. A method of coating a paper substrate, which comprises the steps of:

(a) applying at room temperature to at least one side of the paper substrate a film of a coating composition consisting essentially of (a) a polyvinyl chloride plastisol and (b) one or more fragrances;

(b) rapidly heating the coated paper substrate at a temperature and for a time sufficient to fuse the film to a clear coating and adhere it to the paper substrate without volatilizing the fragrance(s); and

(c) cooling the heated paper substrate;

wherein the coating is applied in an amount sufficient to provide a continuous coating which will adhere to the paper and release the fragrance over time.

12. The method of

claim 11

, wherein the polyvinyl chloride is a dispersion containing polyvinyl chloride polymers, one or more plasticizers, and an adhesion promoter.

13. The method of

claim 11

, wherein the paper substrate is a porous paper substrate or a non-calendered paper.

14. The method of

claim 11

, wherein the paper substrate is a calendered and/or a coated paper substrate and wherein the coating further consists essentially of an adhesion promoter.

15. The method of

claim 13

, further comprising the step of packaging the coated paper substrate in a barrier material selected from the group consisting of polyethylene terephthate-coated polyethylene and an aluminum coated polyethylene.

16. The method of

claim 11

, further comprising the steps of coating the uncoated side of the paper substrates with a pressure sensitive adhesive.

17. The method of

claim 11

, wherein the heating is carried out at about 320°

F. for a period of time sufficient to yield a clear coating.

18. A paper substrate coated with a fused polyvinyl chloride film containing an effective amount of one or more fragrances.

19. The paper substrate of

claim 18

, wherein the substrate which is coated is a non-calendered paper substrate and the fragrance is an insect repellent.

20. The paper substrate of

claim 18

, wherein the substrate which is coated is a calendered and/or coated paper substrate and the fragrance is an insect repellent.