Lubricious Condoms

• US 20190321214A1
• Filed: 04/19/2019
• Published: 10/24/2019
• Est. Priority Date: 04/20/2018
• Status: Active Application

• Current Assignee: Wang Hao
• Original Assignee: Wang Hao
• Inventors: Wang, Hao
• Application Number:
  US16/389,025
• Publication Number:
  US 20190321214A1
• Time in Patent Office: Days
• CPC Class Codes: A61F 2006/048 with surface protuberances
• CPC Class Codes: A61F 6/04 Condoms, sheaths or the like , e.g. combined with devices protecting against contagion
• CPC Class Codes: A61F 6/065 Condom-like devices worn by females
• CPC Class Codes: A61K 47/10 Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
• CPC Class Codes: A61K 9/0034 Urogenital system, e.g. vagina, uterus, cervix, penis, scrotum, urethra, bladder; Personal lubricants
• CPC Class Codes: A61L 31/08 Materials for coatings
• CPC Class Codes: A61L 31/14 Materials characterised by their function or physical properties , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
• CPC Class Codes: C08F 120/14 Methyl esters , e.g. methyl (meth)acrylate
• CPC Class Codes: C08F 2438/01 Atom Transfer Radical Polymerization [ATRP] or reverse ATRP
• CPC Class Codes: C08J 7/0427 with only one layer of a composition containing a polymer binder with more layers C08J7/042
• CPC Class Codes: C08J 7/044 Forming conductive coatings; Forming coatings having anti-static properties
• CPC Class Codes: C08J 7/056 Forming hydrophilic coatings

Abstract

This invention disclosed condoms with surface hydrophilic and lubricious modification. Said condoms were grafted with a thin layer of zwitterions, which forms lubricious water layer when contacted with human body liquids or other water solutions, to lower the surface friction and mechanical damage to human body, and to improve user'"'"'s experience. Another benefit of present invention is due to the tight bonding between modification material and condom substrate, the modification will stably stay on the substrate during usage, to avoid the potential side effects caused by lubricants.

Claims

1. Condoms with surface hydrophilic and lubricous modifications;

said condoms was grafted with zwitterions which form lubricious water film in liquid environment to lower the surface friction.

2. The condoms of claim 1, where the monomers of zwitterions have the following structure:

B-L-Z

in which B was chosen from;

3. The condoms in claim 2, where the zwitterions include one or more monomers.

4. The condoms in claim 2, where the zwitterions are phosphocholines.

5. The condoms in claim 2, where the zwitterions are betaines.

6. The condoms in claim 2, where the condom substrate material is latex.

7. The condoms in claim 2, where the condom substrate material is polyurethane.

8. The condoms in claim 2, where the condoms are made from natural materials such as animal intestines.

9. The condoms in claim 5, where the zwitterions are carboxybetaines.

10. The condoms in claim 5, where the zwitterions are sulfobetaines.