Strobeck, George W.;

Laminate with plastic film

A repair or waterproofing laminate having a flexible sheet-like permeable or semipermeable support in face-to-face contact with a sheet-like bituminous mastic and further having an impermeable plastic film in contact with, and permanently adhered to, the portion of the mastic that extends beyond at least one of the ends or edges of the support.

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I claim:

1. A laminate comprising:

(a) a flexible sheet-like permeable or semipermeable support,

(b) a sheet-like bituminous mastic having an upper face and a reverse face,

(c) a plastic film, and

(d) a removable protective means;

wherein said support is in face-to-face contact with, and permanently adhered to, said upper face of said mastic; wherein said mastic extends beyond at least one end or edge of said support to create an extended mastic construction; wherein said plastic film is in face-to-face contact with, and permanently adhered to, the surface of said upper face of said mastic extending beyond said support; and wherein said removable means is adhered to and substantially covers the reverse face of said mastic.

2. The laminate of claim 1 in the form of a roll.

3. A laminate as recited in claim 1 wherein said support is a woven or nonwoven fabric.

4. A laminate as recited in claim 3 wherein said fabric is comprised of polyolefin.

5. A laminate as recited in claim 1 wherein said protective means is a silicone-treated material.

6. A laminate as recited in claim 1 wherein said support is a nonwoven polypropylene fabric.

7. A laminate as recited in claim 1 wherein said mastic is a rubberized asphalt.

8. A laminate as recited in claim 1 wherein said mastic is comprised of rubber and bituminous material.

9. A laminate as recited in claim 1 wherein said plastic film is comprised of polypropylene, polyester, polyethylene or cellulose acetate.

10. A laminate as recited in claim 5, 7, 8 or 9 wherein said support is a polyolefin fabric.

11. A laminate as recited in claim 1 wherein said support is a nonwoven polypropylene fabric; wherein said mastic is a rubberized asphalt mastic; wherein said plastic film is comprised of polypropylene; and wherein said protective means is a silicone-treated release paper.

12. The laminate of claim 11 in the form of a roll.