Adhesive Gels For Respiratory Masks

An adhesive for use on a user-to-mask interface of a respiratory mask, the adhesive comprising:

• greater than or equal to about 3 wt. % to less than or equal to about 12 wt. % of glycerol (C3H8O3);
• greater than or equal to about 0.70 wt. % to less than or equal to about 3 wt. % of one or more polyacrylates;
• greater than or equal to about 2 wt. % to less than or equal to about 5 wt. % of poly(ethylene glycol) ((C2H4O)nH2O);
• greater than or equal to about 30 wt. % to less than or equal to about 40 wt. % of polyvinylpyrrolidone;
• and
• a balance of water.

A method for forming an adhesive for use on a user-to-mask interface of a respiratory mask, the method comprising:

• forming a first aqueous mixture comprising:
• greater than or equal to about 1 wt. % to less than or equal to about 15 wt. % of one or more glycerides,
• greater than or equal to about 0.50 wt. % to less than or equal to about 5 wt. % of one or more polyacrylates,
• greater than or equal to about 1 wt. % to less than or equal to about 10 wt. % of one or more polyethers,
• greater than or equal to about 25 wt. % to less than or equal to about 45 wt. % of one or more N-vinylpyrrolidone polymers, and
• a balance of water;
• forming a second aqueous mixture comprising:
• greater than or equal to about 0.50 wt. % to less than or equal to about 5 wt. % of one or more polyacrylates,
• greater than or equal to about 0.10 wt. % to less than or equal to about 3 wt. % of one or more amines, and
• a balance of water;
• and
• admixing the first aqueous mixture and the second aqueous mixture to form a substantially homogeneous mixture that defines the adhesive.