Patent · US Expired

Supporting bandage

US4221214A · kind A · utility

0Cited by

3References

18Claims

0Family size

Assignee

Biersdorf AG

Inventors

Hanns Pietsch · Hamburg, DE
Dietrich Schulte · Pinneberg, DE
Gunther Sachau · Norderstedt, DE
Jurgen Quandt · Uetersen, DE

Key dates

Filing date	Feb 2, 1979
Grant date	Sep 9, 1980
Priority date	—
Expiry date	Feb 2, 1999

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/00836
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A bandage for forming a stiffening or supporting cast comprising a carrier material and a composition thereon. The material includes a gas permeable flexible fabric-like base of the usual kind. The composition comprises (a) 55-97% by weight of gypsum, burnt, (b) 1-30%, preferably 3-30%, by weight of a highly crosslinked, finely dispersed poly-vinyl ester powder, which powder is more than 50% insoluble in ethyl-acetate, and (c) 0-12%, preferably 3-12%, by weight of a light weight cellular or porous filler having a bulk density of up to 0.1 g/cc.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.