Back to results
US 4,374,962 AGranted
Adhesive for polyester fibrous material
AssigneeBridgestone Tire Company Limited
InventorsToshihiro Yotsumoto, Kazuo Koyama
Life of this patent
Estimating the term…
Abstract
An adhesive comprising a cocondensate of formaldehyde with m-alkylphenol or its derivative and alkylresorcin is excellent in the adhesion, heat resistance and flexibility and can bond firmly polyester fibrous material with rubber.
Claims2
An adhesive for polyester fibrous material, comprising an alkylphenol/alkylresorcin/formaldehyde cocondensate having substantially an average molecular weight of 300-600 and obtained by condensing
- a compound selected from compounds represented by a general formula ##STR5## wherein R.sub.1 represents a hydrogen atom or an alkyl group having 1-3 carbon atoms, and R.sub.2 represents an alkyl group having 1-4 carbon atoms, and
- a compound selected from compounds represented by a general formula ##STR6## wherein R.sub.3 represents an alkyl group having 1-3 carbon atoms, together with formaldehyde in the presence of an acidic catalyst.
Dependencies are inferred from the claim text.