Microporous films comprising flocked fibers

• US 6,365,794 B1
• Filed: 03/22/2000
• Issued: 04/02/2002
• Est. Priority Date: 03/22/2000
• Status: Expired due to Term

• Current Assignee: Johnson & Johnson Consumer Inc. (Johnson & Johnson)
• Original Assignee: McNeil-PPC Incorporated (Johnson & Johnson)
• Inventors: Pilate, Rita S., Lasko, Vincent P., Dabi, Shmuel
• Primary Examiner(s): SHANOSKI, PAUL A
• Assistant Examiner(s): Bogart, Michael
• Application Number:
  US09/532,239
• Time in Patent Office: 741 Days
• Field of Search: 604/354, 604/385.03, 604/385.23, 604/385.01, 604/384, 604/364, 604/367, 604/365, 604/387, 604/378
• US Class Current: 604/367
• CPC Class Codes: A61F 13/023 wound covering film layers without a fluid retention layer
• CPC Class Codes: A61F 13/51401 characterised by the material
• CPC Class Codes: A61F 13/51458 being air-pervious or breathable
• CPC Class Codes: A61F 13/8405 Additives, e.g. for odour, disinfectant or pH control
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: D04H 11/00 Non-woven pile fabrics layered products forming non-woven pile fabrics B32B

Abstract

This invention relates to microporous films comprising flocked fibers. Such microporous films may be used as breathable materials in for example absorbent articles, wound care bandages, and skin care patches.

Claims

1. A microporous film comprising flocked superabsorbent polymer fibers.

2. The microporous film of claim 1, further comprising flocked fibers selected from the group consisting of hydrophilic fibers, hydrophobic fibers and mixtures thereof.

3. The microporous film of claim 2, wherein the hydrophilic fibers are selected from the group consisting of wettable fibers, absorbent fibers and mixtures thereof.

4. The microporous film of claim 2, wherein the flocked fibers are selected from the group consisting of cotton, rayon, and mixtures thereof.

5. The microporous film of claim 1 further comprising an additive selected from the group consisting of moisturizing compositions, medicaments, perfumes, odor control agents, and mixtures thereof.

6. The absorbent article comprising a microporous film, wherein the microporous film comprises flocked superabsorbent polymer fibers.

7. The absorbent article of claim 6, wherein the microporous film is a backsheet for the absorbent article.

8. The absorbent article of claim 6, wherein the microporous film further comprises flocked fibers selected from the group consisting of hydrophilic fibers, hydrophobic fibers and mixtures thereof.

9. The absorbent article of claim 8, wherein the hydrophilic fibers are selected from the group consisting of wettable fibers, absorbent fibers, and mixtures thereof.

10. The absorbent article of claim 8, wherein the flocked fibers are selected from the group consisting of cotton, rayon, and mixtures thereof.

11. A sanitary napkin comprising a microporous film, wherein the microporous film comprises flocked superabsorbent polymer fibers.

12. A pantiliner comprising a microporous film, wherein the microporous film comprises flocked superabsorbent polymer fibers.

13. A wound care bandage comprising a microporous film, wherein the microporous film comprises flocked superabsorbent polymer fibers.

14. A skin care patch comprising a microporous film, wherein the microporous film comprises flocked superabsorbent polymer fibers.

15. The skin care patch of claim 14 further comprising a moisturizing composition dispersed within the flocked fibers.

16. The skin care patch of claim 15, wherein the moisturizing composition comprises glycerin.

17. The skin care patch of claim 14 further comprising a medicament dispersed within the flocked fibers.

18. The skin care patch of claim 17 wherein the medicament comprises salicylic acid.