Patent · US Expired

Dimensionally stable polyester melt blown web

US5010165A · kind A · utility

9Cited by

2References

20Claims

0Family size

Assignee

EASTMAN KODAK COMPANY · US

Inventors

Wayne P. Pruett · Kingsport, US
Max F. Meyer, Jr. · Kingsport, US
Kenneth E. Breeding · Kingsport, US

Key dates

Filing date	Jun 2, 1989
Grant date	Apr 23, 1991
Priority date	—
Expiry date	Jun 2, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/68
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A dimensionally stable polyester melt blown web composition is disclosed. The polyester melt blown web is obtained by contacting the web with a solvent, and drying the web. The solvents which are used have total solubility parameters (S.sub.o) of 8.5 to 12.0 (cal/cm.sup.3).sup.1/2, solubility parameter component due to hydrogen bonding (S.sub.h) of 0.5 to 5.5 (cal/cm.sup.3).sup.1/2 and solubility parameter component due to polar forces (S.sub.p) of 0.5 to 7.0 (cal/cm.sup.3).sup.1/2). The polyesters used for such melt blown webs include poly(ethylene-terephthalate), poly(cyclohexylene dimethylene terephthalate) and blends and copolymers of these polymers.

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