Composite structure made of urethane and woven backing materials
OwnerUlrich Holeschovskyinventor
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Abstract
The present invention relates to composite structures comprising an open weave, natural or synthetic fabric or backing having fibers and a urethane froth foam, wherein the fibers of the fabric or backing are at least partially penetrated and/or embedded by the urethane froth. This invention also relates to a process for the production of a composite structure comprising A) applying a reactive urethane froth to an open weave, natural or synthetic fabric or secondary backing having fibers, B) passing the fabric or backing coated with the reactive urethane froth under a doctoring device such that the reactive urethane froth at least partially penetrates and/or embeds the fibers of the fabric or backing, and C) curing the reactive urethane froth.
Claims12
A composite structure comprising:
- (A) an open weave, natural or synthetic fabric backing having fibers, and
- (B) a urethane froth foam comprising:
- (1) at least one polyisocyanate component,
- (2) at least one isocyanate-reactive component,
- (3) at least one non-Newtonian thickener, and
- (4) at least one catalyst;
- wherein the fibers of the fabric or backing are at least partially penetrated and/or embedded by the urethane froth.
A process for the production of a composite structure comprising:
- A) applying a reactive urethane froth to an open weave, natural or synthetic fabric or backing having fibers, wherein the reactive urethane froth comprises:
- (1) at least one polyisocyanate component,
- (2) at least one isocyanate-reactive component,
- (3) at least one non-Newtonian thickener, and
- (4) at least one catalyst;
- B) passing the fabric or backing coated with the reactive urethane froth under a doctoring device such that the urethane froth at least partially penetrates and/or embeds the fibers of the fabric or backing;
- and
- C) curing the urethane froth.
Dependencies are inferred from the claim text.