Gernot K Buerger

US Patent:

49045237, Feb 27, 1990

Filed:

Dec 5, 1988

Appl. No.:

7/282952

Inventors:

Quentin L. Kampf - Lowell MA
Chester J. Petkiewicz - Lowell MA
Gernot K. Buerger - Groveland MA

Assignee:

Pellon Company - Lowell MA

International Classification:

C09J 502

US Classification:

428288

Abstract:

Disclosed is a nonwoven fabric which is a nonspunbonded fabric and has a surface free of standing fibers and a method for making the same. The fabric is useful as a support for case on coatings to form a composite for TFC membrane filters. The fabric is formed of a first layer having binder fiber and matrix fiber. A second layer of 100 percent binder fiber is cast thereon. The binder fiber has a softening point lower than the melting point of the matrix fiber. The first and second layers are bonded by heat and pressure to form the fabric.

US Patent:

56520417, Jul 29, 1997

Filed:

Dec 12, 1995

Appl. No.:

8/571026

Inventors:

Gernot K. Buerger - Groveland MA
Ralph Krueger - Durham NC
Rocky Noell - Durham NC
Wolfgang Pfeiffer - Raleigh NC

International Classification:

B32B 2714

US Classification:

428198

Abstract:

The invention features a nonwoven composite material which includes a layer of staple fiber aligned surface-to-surface with a spunbonded continuous filament web layer, the layers being continuously thermally bonded.