Method for forming an adhesive composition for use in roofing materials

A method for forming a curable adhesive comprising:

• providing an extender;
• providing a compatibilizer;
• providing a polymer;
• said polymer including reactive silyl groups;
• and
• combining said extender, said compatibilizer and said polymer to form said curable adhesive;
• wherein said curable adhesive includes less than 0.5 wt. % of a compound selected from the group consisting of asphalt, bitumen, and coal tar;
• wherein said curable adhesive includes less than 0.5 wt. % volatile organic compounds;
• wherein a weight ratio of said extender to said compatibilizer is at least 1:1;
• and
• wherein said curable adhesive comprises 10-31 wt. % polymer, 4-45 wt. % extender, 2-45 wt. % compatibilizer, 0.01-4 wt. % adhesion promoter, 0.001-5 wt. % antioxidant, 0.01-1 wt. % catalyst, 0.05-2 wt. % dehydration agent, 20-70 wt. % filler.

A method for forming a roofing system comprising:

• providing roof membrane;
• providing a curable adhesive, said curable adhesive includes extender, compatibilizer, polymer, and less than 0.5 wt. % of a compound selected from the group consisting of asphalt, bitumen, and coal tar;
• said polymer including reactive silyl groups;
• said curable adhesive including less than 0.5 wt. % volatile organic compounds;
• a weight ratio of said extender to said compatibilizer is at least 1:1;
• said curable adhesive comprises 4-45 wt. % extender, 2-45 wt. % compatibilizer, and 10-31 wt. % polymer;
• one or more of said reactive silyl groups in said polymer are selected from the group consisting of a polyether having reactive silyl groups, a polyurethane having reactive silyl groups, and a polyester having reactive silyl groups;
• and
• adhering said roof membrane to a roof substrate by said curable adhesive;
• said curable adhesive positioned between said roof substrate and said roof membrane prior to said curable adhesive being fully cured.

A method for forming a roofing system comprising:

• providing roof membrane;
• providing a curable adhesive, said curable adhesive includes extender, compatibilizer, polymer, and less than 0.5 wt. % of a compound selected from the group consisting of asphalt, bitumen, and coal tar;
• said polymer including reactive silyl groups;
• said curable adhesive including less than 0.5 wt. % volatile organic compounds;
• a weight ratio of said extender to said compatibilizer is at least 1:1;
• said curable adhesive comprises 10-31 wt. % polymer, 4-45 wt. % extender, 2-45 wt. % compatibilizer, 0.01-4 wt. % adhesion promoter, 0.001-5 wt. % antioxidant, 0.01-1 wt. % catalyst, 0.05-2 wt. % dehydration agent, 20-70 wt. % filler;
• and
• adhering said roof membrane to a roof substrate by said curable adhesive;
• said curable adhesive positioned between said roof substrate and said roof membrane prior to said curable adhesive being fully cured.