US4952268A — Laminated waterproofing material containing aspha…

Claim 1

Independent Claim 68 words

A laminated material comprising: a layer of plastic film having a plurality of perforations spaced apart therein; a first layer of asphalt on one side of said the plastic film; and a second layer of asphalt on the other side thereof; wherein said first and second layers of asphalt are integrally joined to one another through the perforations in the plastic film thereby resulting a unitary laminated structure.

Claim 2

Dependent Claim 68 words

A laminated material comprising: a layer of plastic film having a plurality of perforations spaced apart therein; a first layer of asphalt on one side of said the plastic film; and a second layer of asphalt on the other side thereof; wherein said first and second layers of asphalt are integrally joined to one another through the perforations in the plastic film thereby resulting a unitary laminated structure.

Claim 3

Dependent Claim 109 words

A waterproofing material comprising; a biaxially oriented polyester film having a plurality of perforations therein; a first layer of asphalt on one side of said polyester film; and a second layer of asphalt which is thicker than said first layer of asphalt and having embedded therein a weather resistant material amounting to a substantial portion of the composition of said second layer; wherein a plurality of columns of asphalt extend through said perforations in said polyester film to interconnect and integrally joining the two layers of asphalt together, said columns of asphalt having a cross sectional area comprising a substantial portion of the lateral area of said waterproofing material.

Claim 4

Dependent Claim 109 words

A waterproofing material comprising; a biaxially oriented polyester film having a plurality of perforations therein; a first layer of asphalt on one side of said polyester film; and a second layer of asphalt which is thicker than said first layer of asphalt and having embedded therein a weather resistant material amounting to a substantial portion of the composition of said second layer; wherein a plurality of columns of asphalt extend through said perforations in said polyester film to interconnect and integrally joining the two layers of asphalt together, said columns of asphalt having a cross sectional area comprising a substantial portion of the lateral area of said waterproofing material.

Claim 5

Dependent Claim 57 words

A waterproofing material in accordance with claim 2, wherein said perforation are circular and have a diameter of about 0.04 to about 0.20 inches, the open area of said polyester film is about 20 to about 70% of the total surface area, and the thickness of said polyester film is about 0.003 inches to about 0.012 inches.

Claim 6

Dependent Claim 69 words

A waterproofing material in accordance with claim 2, wherein the shape of said perforations is one of oval, square, rectangular, triangular, pentagonal, trapezoidal, semi-circular and polyhedral with a minimal perforation cross dimension of about 0.04 to about 0.20 inches, the perforation open area amounts to about 20-70% of the area of the polyester film and the thickness of said polyester film is from 0.003 inches to about 0.012 inches.

Claim 7

Dependent Claim 35 words

A waterproofing material in accordance with claim 2, wherein the cross sectional area of the columns of asphalt extending through the polyester film amount to about 30-60% of the lateral area of the waterproofing material.

Claim 8

Dependent Claim 15 words

A waterproofing material in accordance with claim 2, wherein the perforations have a uniform pattern.

Claim 9

Dependent Claim 24 words

A waterproofing material in accordance with claim 2, wherein said polyester film has an interior unperforated area extending in at least one bilateral direction.

Claim 10

Dependent Claim 59 words

A waterproofing material in accordance with claim 2, wherein said polyester film has about a 0.25 to about a 0.0625 inches border along its outer edges which does not contain any perforation and said polyester film further includes an unperforated area in the interior of said polyester film extending in at least one biaxial direction across said polyester film.

Claim 11

Dependent Claim 17 words

A waterproofing material in accordance with claim 2, wherein said polyester film is made from polyethylene terephthalate.

Claim 12

Dependent Claim 42 words

A waterproofing material in accordance with claim 9, wherein said polyethylene terephthalate is recycled material having a stretch ratio of about 2.5 to about 5.0 in each biaxial direction and having a density range of over 1.35 g/cc to about 1.45 g/cc.

Claim 13

Dependent Claim 24 words

A waterproofing material in accordance with claim 2, wherein the stabilizer/filler material admixed therein amounts to about 40 to about 70% of the asphalt.

Claim 14

Dependent Claim 25 words

A waterproofing material according to claim 2, wherein the stabilizer/filler material admixed is limestone which amounts to about 40 to about 70% of the asphalt.

Claim 15

Dependent Claim 28 words

A waterproofing material according to claim 2, wherein the waterproofing material is finished into one of a shingle, a rolled waterproofing material and a modified bituminous waterproofing material.

Claim 16

Independent Claim 76 words

A method of manufacturing a laminated material, comprising the steps of: (a) unrolling a desired length of plastic film having a plurality of perforations therein; (b) applying molten asphalt to both surfaces of the unrolled plastic film; (c) squeezing said plastic film, with the molten asphalt on both surfaces thereof, so that the asphalt is forced through the perforations in said plastic film to integrally join both asphalt layers together; and (d) cooling said laminated material.

Claim 17

Independent Claim 76 words

A method of manufacturing a laminated material, comprising the steps of: (a) unrolling a desired length of plastic film having a plurality of perforations therein; (b) applying molten asphalt to both surfaces of the unrolled plastic film; (c) squeezing said plastic film, with the molten asphalt on both surfaces thereof, so that the asphalt is forced through the perforations in said plastic film to integrally join both asphalt layers together; and (d) cooling said laminated material.

Claim 18

Independent Claim 91 words

A method of manufacturing waterproofing material, comprising the steps of: (a) unrolling a continuous polyester film having a plurality of perforations therein; (b) applying molten asphalt to both surfaces of the unrolled polyester film to form layers thereon; (c) squeezing said polyester film, with the molten asphalt on both surfaces thereof, so that the asphalt is forced through the perforations in said polyester film to integrally join both asphalt layers together; (d) depositing and impregnating a weather resistant material in at least one asphalt surface; and (e) cooling said waterproofing material.

Claim 19

Independent Claim 91 words

A method of manufacturing waterproofing material, comprising the steps of: (a) unrolling a continuous polyester film having a plurality of perforations therein; (b) applying molten asphalt to both surfaces of the unrolled polyester film to form layers thereon; (c) squeezing said polyester film, with the molten asphalt on both surfaces thereof, so that the asphalt is forced through the perforations in said polyester film to integrally join both asphalt layers together; (d) depositing and impregnating a weather resistant material in at least one asphalt surface; and (e) cooling said waterproofing material.

Claim 20

Dependent Claim 54 words

The method of claim 15, further comprising using circular perforations having a diameter of about 0.04 to about 0.20 inches, the open area of said polyester film amounting to about 20 to about 70% of the total surface area, and the thickness of said polyester film from about 0.003 inches to about 0.012 inches.

Claim 21

Dependent Claim 21 words

The method according to claim 15, further comprising using a mineral stabilizer filler which comprises at least 20% of the asphalt.

Claim 22

Dependent Claim 78 words

The method of claim 17, wherein said perforations have a typical perforation cross-dimension of about 0.04 to about 0.12 inches, the perforation open area amounting to about 20 to about 70% of the area of the polyester film and the thickness of said polyester film is from 0.003 inches to about 0.12 inches, the perforation size being chosen relative to the viscosity of the filled asphalt layers to facilitate the forcing of the filled asphalt through the perforations.

Claim 23

Dependent Claim 26 words

The method of claim 15, further comprising using an asphalt column cross sectional area amounting to about 30-60% of the lateral area of the waterproofing material.

Claim 24

Dependent Claim 16 words

The method of claim 15, further comprising using uniform perforation shape and spacing in all directions.

Claim 25

Dependent Claim 54 words

The method of claim 15, wherein said polyester film having a 0.25 to about a 0.0625 inch border along its outer edges which does not contain any perforation and said polyester film further includes an unperforated area in the interior of the polyester film extending in at least one biaxial direction across said film.

Claim 26

Dependent Claim 40 words

The method of claim 15, further comprising using, as the polyester, recycled polyethylene terephthalate having a stretch ratio of about 2.5 to about 5.0 in each biaxial direction and a density range of about 1.35 g/cc to about 1.45 g/cc.

Claim 27

Dependent Claim 24 words

The method of claim 17, further comprising applying the asphalt to the polyester film at a temperature of about 325° to about 425° F.

Claim 28

Dependent Claim 27 words

The method of claim 17, further comprising applying he mineral stabilizer filler to at least one asphalt layer comprising about 40 to about 70% of the asphalt.

Claim 29

Dependent Claim 24 words

The method according to claim 15, further comprising advancing the polyester film at a line speed of between 100 and 450 feet per minute.

Claim 30

Dependent Claim 74 words

A laminated material comprising: a layer of plastic film having a plurality of spaced apart perforations therein; and a layer of asphalt on one side of said the plastic film; wherein said layer of asphalt and said plastic film are joined to one another by columns of said asphalt extending through the perforations in the plastic film with the ends of the columns flattened to form column heads attaching the asphalt to the film.

Claim 31

Dependent Claim 74 words

A laminated material comprising: a layer of plastic film having a plurality of spaced apart perforations therein; and a layer of asphalt on one side of said the plastic film; wherein said layer of asphalt and said plastic film are joined to one another by columns of said asphalt extending through the perforations in the plastic film with the ends of the columns flattened to form column heads attaching the asphalt to the film.

Claim 32

Independent Claim 93 words

A method of manufacturing a laminated material, comprising the steps of: (a) providing a strip of plastic film having a plurality of perforations therein; (b) applying extrudable asphalt to a surface of the plastic film; (c) squeezing said plastic film, with the asphalt on surfaces thereof, so that the asphalt is extruded through the perforations in said plastic film and spreading the columns on the surface of the film remote from the applied asphalt to form heads to intimately join the asphalt layer and the film together; and (d) cooling said laminated material.

Claim 33

Independent Claim 93 words

A method of manufacturing a laminated material, comprising the steps of: (a) providing a strip of plastic film having a plurality of perforations therein; (b) applying extrudable asphalt to a surface of the plastic film; (c) squeezing said plastic film, with the asphalt on surfaces thereof, so that the asphalt is extruded through the perforations in said plastic film and spreading the columns on the surface of the film remote from the applied asphalt to form heads to intimately join the asphalt layer and the film together; and (d) cooling said laminated material.

Claim 34

Independent Claim 75 words

A method of manufacturing a laminated material, comprising the steps of: (a) providing a strip of asphalt film having a plurality of perforations therein; (b) providing a strip of asphalt on both surfaces of the plastic film; (c) squeezing said plastic film, with the asphalt on both surfaces thereof, so that the asphalt is extruded through the perforations in said plastic film to integrally join both asphalt layers together; and (d) cooling said laminated material.

Claim 35

Independent Claim 75 words

A method of manufacturing a laminated material, comprising the steps of: (a) providing a strip of asphalt film having a plurality of perforations therein; (b) providing a strip of asphalt on both surfaces of the plastic film; (c) squeezing said plastic film, with the asphalt on both surfaces thereof, so that the asphalt is extruded through the perforations in said plastic film to integrally join both asphalt layers together; and (d) cooling said laminated material.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1993-08-27	1994-02-26	1994-08-28	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1997-08-27	1998-02-26	1998-08-28	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2001-08-27	2002-02-26	2002-08-28	$7700.00	Window Closed / Lapsed

Laminated waterproofing material containing asphalt and method of making it

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