IP Library › Granted Patent US 10,130,973
Granted Patent B2
US 10,130,973 · App. 15/210,757 · Granted Nov 20, 2018

Process for manufacturing a waterproofing membrane

Inventors: Michel Getlichermann (Perwez, BE); Xavier Godeaux (Perwez, BE); Hans Aerts (Lot, BE); Eric Bertrand (Perwez, BE)
Assignee: S.A. Imperbel N.V.
B05D1/38B05D3/007B05D5/00C08K3/22C08K3/26C08K3/346C08K3/36C08K9/02C09D133/02D06N5/003E04D5/00E04D5/02E04D5/10C08K2003/2241C08K2003/265D06N2203/041D06N2205/10D06N2209/0823D06N2209/0876D06N2209/1692
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Quick Facts
Patent No.
US 10,130,973
App. No.
15/210,757
Granted
Nov 20, 2018
Kind
B2
Abstract

The present invention relates to a process for manufacturing a waterproofing membrane comprising: a preparation of a composition dispersed in a solvent; coating a reinforcement layer by application of said composition on one side of the reinforcement layer; an evaporation of said solvent; having the coated reinforcement layer dried; and an application of a bituminous mass on another side of said reinforcement layer, characterized in that, during the preparation of the composition, the composition is dispersed in a solvent chosen in the group consisting of a solvent other than water or water. The present invention relates also to a composition for a waterproofing membrane.

Claims (12)

1. A process for manufacturing a waterproof membrane comprising:

preparing a composition comprising an acrylic polymer having aliphatic side chains of fewer than 10 carbon atoms and titanium dioxide dispersed in a solvent other than water;

coating a reinforcement layer by application of said composition having a Newtonian viscosity on one side of the reinforcement layer;

evaporating said solvent out of said composition having a Newtonian viscosity;

drying the reinforcement layer to provide a coated reinforcement layer; and

applying a bituminous mass on another side of said coated reinforcement layer.

2. The process according to claim 1 , characterized in that the composition further comprises cristobalite.

3. The process according to claim 1 , characterized in that the composition further comprises talc.

4. The process according to claim 2 , characterized in that, prior to preparing the composition, the cristobalite is obtained by heating quartz to substantially 1500° C.

5. The process according to claim 1 , characterized in that the composition further comprises an additive composed by a core of titanium dioxide covered by calcium carbonate.

6. The process according to claim 1 , characterized in that the composition further comprises calcium carbonate.

7. The process according to claim 1 , characterized in that the solvent other than water is chosen from the group consisting of dimethylformamide, methyl ethyl ketone, and toluene.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED ON REEL 63056 FRAME 986. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Feb 26, 2024
From: IMPERBEL
To: IMPERBEL
Reel/Frame 066675/0357 →
CHANGE OF NAME Recorded Feb 23, 2023
From: S.A. IMPERBEL N.V.
To: IMPERBEL
Reel/Frame 062838/0799 →
ADDRESS CHANGE Recorded Feb 23, 2023
From: IMPERBEL
To: IMPERBEL
Reel/Frame 063056/0986 →
Priority Claims (1)
EP 12166698 · May 3, 2012 · regional
Continuity (2)
Continuation 13886338 · May 3, 2013
Related Publication 20170009455A1 · Jan 12, 2017
Cited By (1)
US 12,545,788