BONDING ADHESIVE AND ADHERED ROOFING SYSTEMS PREPARED USING THE SAME

• US 20200131775A1
• Filed: 12/31/2019
• Published: 04/30/2020
• Est. Priority Date: 03/15/2013
• Status: Abandoned Application

• Current Assignee: Holcim Technology, Ltd. (Holcim Limited)
• Original Assignee: Firestone Building Products Company LLC (Bridgestone Corporation)
• Inventors: TANG, Jiansheng, CARR, Joseph
• Application Number:
  US16/731,545
• Publication Number:
  US 20200131775A1
• Time in Patent Office: Days
• CPC Class Codes: B32B 11/044 of natural rubber or synthetic rubber
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2307/728 Hydrophilic
• CPC Class Codes: B32B 2319/00 Synthetic rubber natural rubber B32B2317/22
• CPC Class Codes: B32B 2395/00 Bituminous material, e.g. tar, asphalt
• CPC Class Codes: B32B 2419/06 Roofs, roof membranes
• CPC Class Codes: B32B 25/16 comprising polydienes homopolymers or poly-halodienes homopolymers B32B25/12 takes precedence
• CPC Class Codes: B32B 37/12 characterised by using adhesives
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: C08G 65/336 containing silicon
• CPC Class Codes: C08L 57/02 Copolymers of mineral oil hydrocarbons
• CPC Class Codes: C09D 171/02 Polyalkylene oxides
• CPC Class Codes: C09J 109/00 Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
• CPC Class Codes: C09J 171/00 Adhesives based on polyethers obtained by reactions forming an ether link in the main chain based on polyacetals C09J159/00; based on epoxy resins C09J163/00; based on polythioether-ethers C09J181/02; based on polyethersulfones C09J181/06; Adhesives based on derivatives of such polymers
• CPC Class Codes: C09J 175/04 Polyurethanes
• CPC Class Codes: C09J 201/02 characterised by the presence of specified groups , e.g. terminal or pendant functional groups
• CPC Class Codes: C09J 201/10 containing hydrolysable silane groups
• CPC Class Codes: C09J 2499/00 Presence of natural macromolecular compounds or on derivatives thereof, not provided for in groups C09J2489/00 - C09J2497/00
• CPC Class Codes: C09J 5/00 Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
• CPC Class Codes: E04D 11/00 Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
• CPC Class Codes: E04D 11/02 : Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition gravelling of flat roofs E04D7/00; venting or ventilation E04D13/17
• CPC Class Codes: E04D 12/00 : Non-structural supports for roofing materials, e.g. battens, boards E04D11/02 and E04D13/16 take precedence; self-supporting slabs with non-structural supports for roofing materials E04B7/205
• CPC Class Codes: E04D 2015/042 : Fixing to the roof supporting structure
• CPC Class Codes: E04D 3/36 : Connecting; Fastening
• CPC Class Codes: E04D 5/08 : by making use of other materials
• CPC Class Codes: E04D 5/148 : fastening by gluing
• CPC Class Codes: E04D 7/005 : characterised by loose or embedded gravel or granules as an outer protection of the roof covering

Abstract

A method is provided for forming an adhered membrane roof system. The method comprises applying a bond adhesive to a substrate on a roof to form an adhesive layer and applying a membrane directly to the adhesive layer. The bond adhesive includes a polymer having a silicon-containing hydrolyzable terminal group.

Claims

1. A method for forming an adhered membrane roof system, the method comprising:

(i) applying a bond adhesive to a substrate on a roof to form an adhesive layer, where the bond adhesive includes a polymer having a silicon-containing hydrolyzable terminal group and a hydrocarbon tackifier resin devoid of phenolic resin; and

(ii) applying a membrane directly to the adhesive layer.

2. The method of claim 1, where the hydrocarbon tackifier resin is a C₉ aromatic hydrocarbon tackifier resin.

3. The method of claim 1, where the bond adhesive further includes a low VOC-generating moisture scavenger.

4. The method of claim 1, where the bond adhesive further includes a non-phthalate plasticizer.

5. The method of claim 1, where the bond adhesive further includes a low VOC-generating adhesion promoter.

6. The method of claim 1, where the bond adhesive has a dynamic viscosity of less than 13,000 cPs by using a Brookfield viscometer equipped with a #6 spindle operating at room temperature and 10 rpm and a static viscosity of from about 3600 to about 24,000 cPs by using a Brookfield viscometer equipped with a #6 spindle operating at room temperature and 2 rpm.

7. A method for forming an adhered membrane roof system, the method comprising:

(i) applying a bond adhesive to a substrate on a roof to form an adhesive layer, where the bond adhesive includes a polymer having a silicon-containing hydrolyzable terminal group, and a low VOC-generating moisture scavenger; and

(ii) applying a membrane directly to the adhesive layer.

8. The method of claim 7, where the bond adhesive further includes a hydrocarbon tackifier resin.

9. The method of claim 7, where the bond adhesive further includes a non-phthalate plasticizer.

10. The method of claim 7, where the bond adhesive further includes a low VOC-generating adhesion promoter.

11. The method of claim 7, where the low VOC-generating moisture scavenger is a silane including at least one organo functional group and at least one hydrolyzable group that, upon hydrolysis, does not generate methanol

12. A method for forming an adhered membrane roof system, the method comprising:

(i) applying a bond adhesive to a substrate on a roof to form an adhesive layer, where the bond adhesive includes a polymer having a silicon-containing hydrolyzable terminal group, and a non-phthalate plasticizer; and

(ii) applying a membrane directly to the adhesive layer.

13. The method of claim 12, where the bond adhesive further includes a hydrocarbon tackifier resin.

14. The method of claim 12, where the bond adhesive further includes a low VOC-generating moisture scavenger.

15. The method of claim 12, where the bond adhesive further includes a low VOC-generating adhesion promoter.

16. The method of claim 12, where the nono-phthalate plasticizer is selected from glycol ethers and glycol ether esters.