Pressure sensitive adhesive compositions for coating articles to be attached to skin
US4140115A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 23, 1975 |
| Grant date | Feb 20, 1979 |
| Priority date | — |
| Expiry date | May 23, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Skin damage, i.e., the stripping of tissue cells from the stratum corneum, caused by removal of a backing material which has been held in adherent contact with a skin surface by means of a pressure sensitive adhesive composition coated on the backing material, is markedly reduced by incorporation of about 4 to 20% by weight of an unreacted polyol uniformly dispersed in the water-insoluble pressure sensitive adhesive mass. Suitable polyols include polyethylene glycol and polypropylene sorbitol monolaurate. This improved mass finds special application for use in conjunction with adhesive bandages or rolled tapes composed of a backing material of a plasticized film of polyvinyl chloride. Remarkably, the reduction in skin damage is accomplished without sacrificing low mass transfer to skin upon removal of the backing material, cohesive strength, adhesion, or wearability, all of which are highly desirable properties of pressure sensitive adhesive tapes and bandages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.