Blends of polyvinyl alcohol and polyurethane water dispersions f

Details Blends of polyvinyl alcohol and polyurethane water dispersions f Blends of polyvinyl alcohol and polyurethane water dispersions f

1991-03-28

1992-09-22

Michl, Paul R.

Stock material or miscellaneous articles

Composite

Of polyamidoester

4284239, 4284242, 4284247, 428492, 428521, 524501, 524503, 524507, B32B 2700, B32B 2740, B32B 2504, C08J 302

Patent

active

051495910

ABSTRACT:
A rubber laminate comprising a rubber substrate having coated thereon a blend of a water dispersible insoluble polyurethane and a water soluble polyvinyl alcohol. The combination of water soluble and water insoluble polymers upon drying result in a film that is humidity resistant, and has good abrasion resistance but can be removed by high-pressure washing or scrubbing.

REFERENCES:
patent: 3806486 (1974-04-01), Endriss et al.
patent: 4208311 (1980-06-01), Kinoshita et al.
patent: 4287039 (1981-09-01), Buethe et al.
patent: 4388375 (1983-06-01), Hopper et al.
patent: 4636546 (1987-01-01), Chao
patent: 4857565 (1989-08-01), Henning et al.
patent: 4911218 (1990-03-01), Patitsas
patent: 4925885 (1990-05-01), Rosthauser et al.

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