Moisture permeable film for lamination to a textile material

Details Moisture permeable film for lamination to a textile material Moisture permeable film for lamination to a textile material

1986-12-22

1989-02-28

Cannon, James C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

428252, 4283155, 4283159, 4283171, 525423, 525430, 525926, C08G 6940

Patent

active

048086754

ABSTRACT:
This invention is a water-resistant film for lamination to a textile material, and the flexible, laminated product produced therewith. The film has a permeability of at least 0.0008 metric perm-cm. at 20.degree. C. and 65 percent relative humidity and of at least 0.0006 metric perm-cm. at 30.degree. C. and 50 percent relative humidity. The film is formed from a block copolymer having a number average molecular weight of from about 15,000 to about 35,000. The block copolymer contains polymer segments prepared by the amination of a polyether formed by treating a polyethylene glycol with an alkylene oxide of three or more carbon atoms. The product is a laminant of a layer of the described film and a layer of a textile material, and is useful in the formation of water-resistant, moisture permeable articles such as garments, tarpaulins, tents, and the like.

REFERENCES:
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R. A. Lofquist et al., Hydrophilic Nylon for Improved Apparel Comfort, Jun., 1985, Textile Research Journal, vol. 55, No. 6, pp. 325-333, see Footnote 1 on page 325.

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