US2007003675A1PendingUtilityA1

Packaging materials and structures for compositions including an exothermic agent and a volatile agent

37
Individually held — no corporate assignee on recordPriority: Jun 30, 2005Filed: Jun 30, 2005Published: Jan 4, 2007
Est. expiryJun 30, 2025(expired)· nominal 20-yr term from priority
Inventors:Allen RauHoward RenkerNicole Quinn
B65B 25/00
37
PatentIndex Score
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Cited by
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References
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Claims

Abstract

Packaging materials and structures for compositions including an exothermic agent and a volatile agent are described. The package material includes a polymeric sealing layer which includes a non-ionic polymer or a polymer comprising ionic groups fewer than 10 percent of which (e.g., fewer than 1% of which) have been neutralized. The volatile agent can be an agent that emits a fragrance or aroma such as menthol, eucalyptus and/or camphor vapors. The composition can also include an effervescent agent. The package structures are resistant to discoloration caused by interaction with the product. The package structures also have high moisture barrier properties and can be formed and sealed at high speed.

Claims

exact text as granted — not AI-modified
1 . An article of manufacture comprising: 
 a composition comprising a volatile agent and an exothermic agent; and    a packaging material in contact with the composition, the packaging material comprising a polymer, wherein the polymer is a non-ionic polymer or a polymer comprising ionic groups fewer than 10 percent of which have been neutralized.    
   
   
       2 . The article of manufacture of  claim 1 , wherein the packaging material is a laminate comprising a moisture barrier layer and a layer comprising the polymer, wherein the layer comprising the polymer is in contact with the composition.  
   
   
       3 . The article of manufacture of  claim 2 , wherein the moisture barrier layer comprises a metal foil or a metallized film layer.  
   
   
       4 . The article of manufacture of  claim 3 , wherein the moisture barrier layer comprises an aluminum foil layer.  
   
   
       5 . The article of manufacture of  claim 1 , wherein the packaging material encloses the composition.  
   
   
       6 . The article of manufacture of  claim 2 , wherein one or more layers of packaging material are sealed together via the layer comprising the polymer.  
   
   
       7 . The article of manufacture of  claim 1 , wherein the polymer comprises a repeat unit derived from the free radical polymerization of acrylic acid or methacrylic acid.  
   
   
       8 . The article of manufacture of  claim 1 , wherein the polymer is a copolymer of ethylene and acrylic acid or a copolymer of ethylene and methacrylic acid.  
   
   
       9 . The article of manufacture of  claim 1 , wherein the polymer is a non-ionic polymer.  
   
   
       10 . The article of manufacture of  claim 9 , wherein the polymer is selected from the group consisting of: polyvinyl acetate, polyvinyl butyral, a fluorinted polyolefin, fluorinated ethylene propylene, polytetrafluoroethylene, polyvinylidene fluoride, ethyl vinyl acetate, ethylene acrylate, acid modified ethylene acrylate, anhydride modified ethylene acrylate, acid or acrylate modified ethyl vinyl acetate, high density polyethylene, anhydride modified high density polyethylene, linear low density polyethylene, anhydride modified linear low density polyethylene, polypropylene, anhydride modified polypropylene, polyethylene, low density polyethylene, polyvinyl alcohol, an acrylic copolymer, ethyl butyl acrylate, ethyl ethyl acrylate, ethyl methyl acrylate, polyester, and amorphous nylon.  
   
   
       11 . The article of manufacture of  claim 1 , wherein the volatile agent emits a fragrance or aroma.  
   
   
       12 . The article of manufacture of  claim 11 , wherein the volatile agent emits menthol, eucalyptus and/or camphor vapors.  
   
   
       13 . The article of manufacture of  claim 1 , wherein the exothermic agent is selected from the group consisting of magnesium chloride, magnesium sulfate, ferric chloride, aluminum sulfate hexahydrate, and aluminum chloride.  
   
   
       14 . The article of manufacture of  claim 1 , wherein the composition further comprises an effervescent agent.  
   
   
       15 . The article of manufacture of  claim 14 , wherein the effervescent agent comprises an alkaline carbonate salt and an acid.  
   
   
       16 . The article of manufacture of  claim 15 , wherein the alkaline carbonate salt is selected from the group consisting of sodium bicarbonate, sodium carbonate, sodium sesquicarbonate, potassium bicarbonate, potassium carbonate, potassium sesquicarbonate, magnesium carbonate, ammonium bicarbonate, ammonium carbonate, ammonium sesquicarbonate, and calsium carbonate.  
   
   
       17 . The article of manufacture of  claim 15 , wherein the acid is selected from the group consisting of formic acid, acetic acid, propanoic acid, butyric acid, valeric acid, oxalic acid, malonic acid, tartaric acid, succinic acid, glutaric acid, adipic acid, glycolic acid, aspartic acid, pimelic acid, fumaric acid, maleic acid, phthalic acid, isophthalic acid, terphthalic acid, glutamic acid, lactic acid, hydroxy acrylic acid, alpha hydroxy butyric acid, glyceric acid, tartronic acid, hydroxy benzoic acid, citric acid, salicylcic acid, gallic acid, mandelic acid, tropic acid, ascorbic acid, gluconic acid, cinnamic acid, benzoic acid, phenylacetic acid, nicotinic acid, kainic acid, sorbic acid, pyrrolidone carboxylic acid, trimellitic acid, benzene sulfonic acid, toluene sulfonic acid, potassium dihydrogen phosphate, sodium sulfite, sodium dihydrogen phosphate, potassium sulfite, sodium pyrosulfite, acidic sodium hexametaphosphate, acidic potassium hexametaphosphate, acidic sodium pyrophosphate, acidic potassium pyrophosphate, sulfamic acid and phosphoric acid.  
   
   
       18 . The article of manufacture of  claim 1 , wherein the polymer is a polymer comprising ionic groups.  
   
   
       19 . The article of manufacture of  claim 18 , wherein fewer than 1 percent of the ionic groups of the polymer have been neutralized.  
   
   
       20 . The article of manufacture of  claim 1 , wherein the composition is in tablet form, and comprises magnesium chloride and a volatile agent that emits at least one of menthol, eucalyptus or camphor vapors.  
   
   
       21 . A method comprising: 
 enclosing a composition comprising a volatile agent and an exothermic agent in one or more layers of a packaging material, wherein the packaging material includes a sealing layer comprising a non-ionic polymer or a polymer comprising ionic groups fewer than 10 percent of which have been neutralized; and    sealing the one or more layers of the packaging material together by applying heat and pressure thereto.    
   
   
       22 . The method of  claim 21 , wherein the composition is in tablet form.  
   
   
       23 . The method of  claim 21 , wherein the polymer is a polymer comprising ionic groups.  
   
   
       24 . The method of  claim 23 , wherein fewer than 1 percent of the ionic groups of the polymer have been neutralized.  
   
   
       25 . The method of  claim 21 , wherein the packaging material is a laminate comprising a moisture barrier layer and a layer of the polymer.  
   
   
       26 . The method of  claim 25 , wherein the moisture barrier layer comprises a metal foil or a metallized film layer.  
   
   
       27 . The method of  claim 21 , wherein the volatile agent emits a fragrance or aroma.  
   
   
       28 . The method of  claim 27 , wherein the volatile agent emits menthol, eucalyptus and/or camphor vapors.  
   
   
       29 . The method of  claim 21 , wherein the exothermic agent is selected from the group consisting of magnesium chloride, magnesium sulfate, ferric chloride, aluminum sulfate hexahydrate, and aluminum chloride.  
   
   
       30 . The method of  claim 21 , wherein the composition further comprises an effervescent agent.  
   
   
       31 . The method of  claim 23 , wherein the polymer comprises a repeat unit derived from the free radical polymerization of acrylic acid or methacrylic acid.  
   
   
       32 . The method of  claim 31 , wherein the polymer is a copolymer of ethylene and acrylic acid or a copolymer of ethylene and methacrylic acid.  
   
   
       33 . The method of  claim 21 , wherein the exothermic agent comprises magnesium chloride and wherein the volatile agent emits at least one of menthol, eucalyptus or camphor vapors

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