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US 6,475,619 B2Granted
Stiffener material with self adhesive properties
AssigneeStanbee Company, Inc.
InventorBruce Goldberg
Life of this patent
Estimating the term…
Abstract
A process of making a fabric based stiffener material having thermal adhesive properties on its top and bottom surfaces which is based on (a) contacting a non-woven fabric with a latex forming resin and a finely divided powder adhesive polymer to form a latex saturated non-woven fabric; and (b) removing the excess latex from the non-woven fabric formed in step (a); and (c) drying the product of step (b).
Claims4
A stiffener comprising a non-woven fabric saturated with a composition comprising:
- latex forming polymer 15 wt % to 35 wt % dispersant 0.4 wt % to 1.0 wt % powder adhesive polyester resin 10 wt % to 50 wt % water 35 wt % to 50 wt %;
- and filler 0 wt % to 15 wt %.
Dependencies are inferred from the claim text.