Adhesive bonding
AssigneePolygulf Associates
InventorsCarl Horowitz, Michael Dichter, Navinchandra Bhogilal Shah
Life of this patent
Estimating the term…
Abstract
For securing together elastomeric substrates in surface-to-surface contact an adhesive for interposing between the substrates includes elastomer, a prepolymer or a polymerizable monomer, and a graft initiator. Molecular grafting occurs between the elastomer of the adhesive and the elastomer of both of the substrates, and after curing the layer of adhesive forms an integral assembly with the substrates, to result in a bonding strength which is much higher than is obtainable with known surface adhesives. The adhesive is of particular utility in bonding new tread bands to tire casings in the re-capping of used automobile tires.
Claims3
An adhesive, for bonding a first elastomeric substrate to a second elastomeric substrate, comprising:
- i. elastomer
- ii. prepolymer
- iii. graft initiator, having the following constituents in parts by weight:
- ______________________________________ Styrene butadiene rubber 70.00 Butadiene propolymer having pendant vinyl groups 3.00 Carbon black 4.50 Benzene 22.50 Sulfur 0.25 Benzothiazyldisulfide 0.15 Zinc oxide 0.50 Stearic acid 0.10 Antioxidant 0.15 Accelerator 3.00 Toluene 40.85 Divinyl benzene 2.00 Cumyl peroxide 0.10 Silver perchlorate 0.40 Methyl ethyl ketone 2.50 ______________________________________
Dependencies are inferred from the claim text.