Moisture-permeable sheets

Details Moisture-permeable sheets Moisture-permeable sheets

1982-09-30

1985-03-26

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428253, 4283155, 4284231, 4284237, B32B 700

Patent

active

045073562

ABSTRACT:
A multi-layer sheet used particularly as a wig base includes a lowermost layer of a poly-.alpha.-amino acid derivative, an uppermost layer of a polyurethane elastomer and woven or knitted fabric of nylon or polyester as reinforcing material, said layer of polyurethane elastomer alone or both said layer of polyurethane elastomer and said layer of poly-.alpha.-amino acid possessing moisture permeability.
To prepare the sheet, finely-divided, water-soluble salt particles are dispersed in the polyurethane elastomer alone or both in the polyurethane elastomer and the amino acid derivative in the presence of a titanate coupling agent serving as a dispersant.

REFERENCES:
patent: 4425395 (1984-01-01), Negishi et al.
patent: 4436570 (1984-03-01), Neuhaus et al.

Affiliated with

Also associated with

Rating

Moisture-permeable sheets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Moisture-permeable sheets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moisture-permeable sheets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1294135